Failsafe modification

The following protocols are supporting failsafe: FrSkyX, Devo, WK2x01, SFHSS, HISKY/HK310 and AFHDS2A In Serial mode failsafe is configured on the radio itself. In PPM mode and only after the module is up and fully operational, press the bind button for at least 5sec to send the current stick positions as failsafe to the RX.
AVR modules: Fix KF606, GD00X and Potensic
2025-11-25 21:39:39 +00:00 · 2019-09-27 16:20:43 +02:00 · 2019-09-26 15:51:28 +02:00 · 2019-09-26 15:50:38 +02:00 · 2019-09-25 19:10:55 +02:00 · 2019-09-23 18:13:25 +02:00
55 changed files with 3839 additions and 870 deletions
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,14 +5,15 @@ language: c
  #
 env:
  global:
-    - IDE_VERSION=1.8.1
+    - IDE_VERSION=1.8.9
  matrix:
-    - BOARD="multi4in1:STM32F1:multistm32f103c:upload_method=serialMethod"
-    - BOARD="multi4in1:STM32F1:multistm32f103c:upload_method=TxFlashMethod"
-    - BOARD="multi4in1:avr:multixmega32d4"
    - BOARD="multi4in1:avr:multiatmega328p:bootloader=none"
    - BOARD="multi4in1:avr:multiatmega328p:bootloader=optiboot"
-  #
+    - BOARD="multi4in1:avr:multixmega32d4"
+    - BOARD="multi4in1:STM32F1:multistm32f103c:debug_option=none"
+    - BOARD="multi4in1:STM32F1:multistm32f103c:debug_option=native"
+    - BOARD="multi4in1:STM32F1:multistm32f103c:debug_option=ftdi"
+    #
 notifications:
  email: false
  #
@@ -41,9 +42,17 @@ before_install:
      arduino --install-boards multi4in1:avr;
    fi
  #
-  - buildMulti() { BUILDCMD="arduino --verify --board $BOARD Multiprotocol/Multiprotocol.ino --pref build.path=./build/"; echo $BUILDCMD; $BUILDCMD; echo; }
-  - buildProtocol() { opt_disable $ALL_PROTOCOLS; opt_enable $1; buildMulti; }
-  - buildEachProtocol() { exitcode=0; for PROTOCOL in $ALL_PROTOCOLS ; do echo Building $PROTOCOL; buildProtocol $PROTOCOL; if [ $? -ne 0 ]; then exitcode=1; fi; done; return $exitcode; }
+  - buildMulti() { exitcode=0; BUILDCMD="arduino --verify --board $BOARD Multiprotocol/Multiprotocol.ino --pref build.path=./build/"; echo $BUILDCMD; $BUILDCMD; if [ $? -ne 0 ]; then exitcode=1; fi; echo; return $exitcode; }
+  - buildProtocol() { exitcode=0; opt_disable $ALL_PROTOCOLS; opt_enable $1; buildMulti; if [ $? -ne 0 ]; then exitcode=1; fi; return $exitcode; }
+  - buildEachProtocol() { exitcodesum=0; for PROTOCOL in $ALL_PROTOCOLS ; do echo Building $PROTOCOL; buildProtocol $PROTOCOL; if [ $? -ne 0 ]; then exitcodesum=$((exitcodesum + 1)); fi; done; return $exitcodesum; }
+  #
+  # Arduino IDE adds a lot of noise caused by network traffic; firewall it
+  - sudo iptables -P INPUT DROP
+  - sudo iptables -P FORWARD DROP
+  - sudo iptables -P OUTPUT ACCEPT
+  - sudo iptables -A INPUT -i lo -j ACCEPT
+  - sudo iptables -A OUTPUT -o lo -j ACCEPT
+  - sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
  #
 install: true
 before_script:
@@ -66,9 +75,9 @@ before_script:
    fi
  - echo $ALL_PROTOCOLS
  #
-  # Enable CHECK_FOR_BOOTLOADER when needed
-  - if [[ "$BOARD" =~ ":upload_method=TxFlashMethod" ]] || [[ "$BOARD" =~ ":bootloader=optiboot" ]]; then
-      opt_enable CHECK_FOR_BOOTLOADER;
+  # Disable CHECK_FOR_BOOTLOADER when not needed
+  - if [[ "$BOARD" == "multi4in1:avr:multiatmega328p:bootloader=none" ]]; then
+      opt_disable CHECK_FOR_BOOTLOADER;
    fi
  #
  # Trim the build down for the Atmega328p board
@@ -103,68 +112,92 @@ before_deploy:
  # Restore the default configuration
  - cp ./_Config.h.bak Multiprotocol/_Config.h
  # Build the release files for OrangeRX
-  - if [[ "$BOARD" =~ "multi4in1:avr:multixmega32d4" ]]; then
+  - if [[ "$BOARD" == "multi4in1:avr:multixmega32d4" ]]; then
      opt_enable $ALL_PROTOCOLS;
      opt_disable ORANGE_TX_BLUE;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-OrangeRX_Green_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-orangerx-green-inv-$TRAVIS_TAG.hex;
      opt_enable ORANGE_TX_BLUE;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-OrangeRX_Blue_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-orangerx-blue-inv-$TRAVIS_TAG.hex;
    fi
  # Build the release files for AVR without bootloader
-  - if [[ "$BOARD" =~ "multi4in1:avr:multiatmega328p:bootloader=none" ]]; then
+  - if [[ "$BOARD" == "multi4in1:avr:multiatmega328p:bootloader=none" ]]; then
      opt_disable CHECK_FOR_BOOTLOADER;
      opt_disable $ALL_PROTOCOLS;
      opt_enable $A7105_PROTOCOLS;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-AVR_USBASP_A7105_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-avr-usbasp-A7105-inv-$TRAVIS_TAG.hex;
      opt_disable $ALL_PROTOCOLS;
      opt_enable $CC2500_PROTOCOLS;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-AVR_USBASP_CC2500_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-avr-usbasp-CC2500-inv-$TRAVIS_TAG.hex;
      opt_disable $ALL_PROTOCOLS;
      opt_enable $CYRF6936_PROTOCOLS;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-AVR_USBASP_CYRF6936_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-avr-usbasp-CYRF6936-inv-$TRAVIS_TAG.hex;
    fi
  # Build the release files for AVR with bootloader
-  - if [[ "$BOARD" =~ "multi4in1:avr:multiatmega328p:bootloader=optiboot" ]]; then
+  - if [[ "$BOARD" == "multi4in1:avr:multiatmega328p:bootloader=optiboot" ]]; then
      opt_enable CHECK_FOR_BOOTLOADER;
      opt_disable $ALL_PROTOCOLS;
      opt_enable $A7105_PROTOCOLS;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-AVR_TXFLASH_A7105_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-avr-txflash-A7105-inv-$TRAVIS_TAG.hex;
      opt_disable $ALL_PROTOCOLS;
      opt_enable $CC2500_PROTOCOLS;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-AVR_TXFLASH_CC2500_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-avr-txflash-CC2500-inv-$TRAVIS_TAG.hex;
      opt_disable $ALL_PROTOCOLS;
      opt_enable $CYRF6936_PROTOCOLS;
      buildMulti;
-      mv build/Multiprotocol.ino.hex ./binaries/Multi-AVR_TXFLASH_CYRF6936_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.hex ./binaries/multi-avr-txflash-CYRF6936-inv-$TRAVIS_TAG.hex;
    fi
-  # Build the release files for STM32 without bootloader
-  - if [[ "$BOARD" =~ "multi4in1:STM32F1:multistm32f103c:upload_method=serialMethod" ]]; then
-      opt_disable CHECK_FOR_BOOTLOADER;
-      opt_enable $ALL_PROTOCOLS;
-      buildMulti;
-      mv build/Multiprotocol.ino.bin ./binaries/Multi-STM_FTDI_INV-$TRAVIS_TAG.hex;
-      opt_disable MULTI_STATUS;
-      opt_enable MULTI_TELEMETRY;
-      buildMulti;
-      mv build/Multiprotocol.ino.bin ./binaries/Multi-STM_FTDI_INV_OPENTX-$TRAVIS_TAG.hex;
-    fi
-  # Build the release files for STM32 with bootloader
-  - if [[ "$BOARD" =~ "multi4in1:STM32F1:multistm32f103c:upload_method=TxFlashMethod" ]]; then
+  # Build the release files for STM32 without debug
+  - if [[ "$BOARD" == "multi4in1:STM32F1:multistm32f103c:debug_option=none" ]]; then
      opt_enable CHECK_FOR_BOOTLOADER;
      opt_enable $ALL_PROTOCOLS;
+      opt_enable MULTI_STATUS;
+      opt_disable MULTI_TELEMETRY;
      buildMulti;
-      mv build/Multiprotocol.ino.bin ./binaries/Multi-STM_TXFLASH_INV-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-erskytx-inv-$TRAVIS_TAG.bin;
+      opt_disable INVERT_TELEMETRY;
+      buildMulti;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-erskytx-noinv-$TRAVIS_TAG.bin;
+      opt_disable MULTI_STATUS;
+      opt_enable MULTI_TELEMETRY;
+      opt_enable INVERT_TELEMETRY;
+      buildMulti;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-opentx-inv-$TRAVIS_TAG.bin;
+      opt_disable INVERT_TELEMETRY;
+      buildMulti;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-opentx-noinv-$TRAVIS_TAG.bin;
+    fi
+  # Build the release files for STM32 with Native USB debugging
+  - if [[ "$BOARD" == "multi4in1:STM32F1:multistm32f103c:debug_option=native" ]]; then
+      opt_enable CHECK_FOR_BOOTLOADER;
+      opt_enable $ALL_PROTOCOLS;
+      opt_enable MULTI_STATUS;
+      opt_disable MULTI_TELEMETRY;
+      buildMulti;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-erskytx-inv-usbdebug-$TRAVIS_TAG.bin;
      opt_disable MULTI_STATUS;
      opt_enable MULTI_TELEMETRY;
      buildMulti;
-      mv build/Multiprotocol.ino.bin ./binaries/Multi-STM_TXFLASH_INV_OPENTX-$TRAVIS_TAG.hex;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-opentx-inv-usbdebug-$TRAVIS_TAG.bin;
+    fi
+  # Build the release files for STM32 with FTDI USB debugging
+  - if [[ "$BOARD" == "multi4in1:STM32F1:multistm32f103c:debug_option=ftdi" ]]; then
+      opt_enable CHECK_FOR_BOOTLOADER;
+      opt_enable $ALL_PROTOCOLS;
+      opt_enable MULTI_STATUS;
+      opt_disable MULTI_TELEMETRY;
+      buildMulti;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-erskytx-inv-ftdidebug-$TRAVIS_TAG.bin;
+      opt_disable MULTI_STATUS;
+      opt_enable MULTI_TELEMETRY;
+      buildMulti;
+      mv build/Multiprotocol.ino.bin ./binaries/multi-stm-opentx-inv-ftdidebug-$TRAVIS_TAG.bin;
    fi
 deploy:
  provider: releases
--- a/BootLoaders/package_multi_4in1_board_index.json
+++ b/BootLoaders/package_multi_4in1_board_index.json
@@ -7,40 +7,7 @@
    "help": {
      "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
    },
-    "platforms": [{
-        "name": "Multi 4-in-1 AVR Boards",
-        "architecture": "avr",
-        "version": "1.0.0",
-        "category": "Contributed",
-        "help": {
-          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
-        },
-        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_board_v1.0.0.zip",
-        "archiveFileName": "package_multi_4in1_board_v1.0.0.zip",
-        "checksum": "SHA-256:3DE301E9FC3C8A81CB2CEDE3458A68C626A9A5C37A73FA9C85BE9D841935684D",
-        "size": "3205",
-        "boards": [{
-          "name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"
-        }],
-        "toolsDependencies": []
-      },
-      {
-        "name": "Multi 4-in-1 AVR Boards",
-        "architecture": "avr",
-        "version": "1.0.1",
-        "category": "Contributed",
-        "help": {
-          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
-        },
-        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_avr_board_v1.0.1.tar.gz",
-        "archiveFileName": "package_multi_4in1_avr_board_v1.0.1.tar.gz",
-        "checksum": "SHA-256:9bb29828476c141f5ef877e66b80ca969021d648acaf1ac5248676beb9ee3003",
-        "size": "3201",
-        "boards": [{
-          "name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"
-        }],
-        "toolsDependencies": []
-      },
+    "platforms": [
      {
        "name": "Multi 4-in-1 AVR Boards",
        "architecture": "avr",
@@ -96,25 +63,94 @@
        "toolsDependencies": []
      },
      {
-        "name": "Multi 4-in-1 STM32 Board",
-        "architecture": "STM32F1",
-        "version": "1.0.0",
+        "name": "Multi 4-in-1 AVR Boards",
+        "architecture": "avr",
+        "version": "1.0.5",
        "category": "Contributed",
        "help": {
          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
        },
-        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.0.0.zip",
-        "archiveFileName": "package_multi_4in1_stm32_board_v1.0.0.zip",
-        "checksum": "SHA-256:7B661C6455F5AD7329E61EC297D4ADED9EF19F618E04E09A35A3C840977A56F5",
-        "size": "10896168",
-        "boards": [{
-          "name": "Multi 4-in-1 (STM32F103C)"
-        }],
-        "toolsDependencies": [{
-          "packager": "arduino",
-          "name": "arm-none-eabi-gcc",
-          "version": "4.8.3-2014q1"
-        }]
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_avr_board_v1.0.5.tar.gz",
+        "archiveFileName": "package_multi_4in1_avr_board_v1.0.5.tar.gz",
+        "checksum": "SHA-256:0a4754d47cdbb49ca194b15835686331530ed9d36c0db093a29ae5f865e75421",
+        "size": "169830",
+        "boards": [
+          {"name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"},
+          {"name": "Multi 4-in-1 (OrangeRX)"}
+        ],
+        "toolsDependencies": []
+      },
+      {
+        "name": "Multi 4-in-1 AVR Boards",
+        "architecture": "avr",
+        "version": "1.0.6",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_avr_board_v1.0.6.tar.gz",
+        "archiveFileName": "package_multi_4in1_avr_board_v1.0.6.tar.gz",
+        "checksum": "SHA-256:4f4cf8820e30bf6c88f280514c67ee67b9dc6649f439597cfb8d0be3a5b13bf5",
+        "size": "169819",
+        "boards": [
+          {"name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"},
+          {"name": "Multi 4-in-1 (OrangeRX)"}
+        ],
+        "toolsDependencies": []
+      },
+      {
+        "name": "Multi 4-in-1 AVR Boards",
+        "architecture": "avr",
+        "version": "1.0.7",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_avr_board_v1.0.7.tar.gz",
+        "archiveFileName": "package_multi_4in1_avr_board_v1.0.7.tar.gz",
+        "checksum": "SHA-256:453c9999e433ed1bdda2ba2b12cb7cbba7b547591db969dc6b7efb941b61cf76",
+        "size": "169825",
+        "boards": [
+          {"name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"},
+          {"name": "Multi 4-in-1 (OrangeRX)"}
+        ],
+        "toolsDependencies": []
+      },
+      {
+        "name": "Multi 4-in-1 AVR Boards",
+        "architecture": "avr",
+        "version": "1.0.8",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_avr_board_v1.0.8.tar.gz",
+        "archiveFileName": "package_multi_4in1_avr_board_v1.0.8.tar.gz",
+        "checksum": "SHA-256:8e58b8733220d56155e10bf5bec0bfe6bf96f8460b3fd49a4b45c7f9fad776cb",
+        "size": "293388",
+        "boards": [
+          {"name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"},
+          {"name": "Multi 4-in-1 (OrangeRX)"}
+        ],
+        "toolsDependencies": []
+      },
+      {
+        "name": "Multi 4-in-1 AVR Boards",
+        "architecture": "avr",
+        "version": "1.0.9",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_avr_board_v1.0.9.tar.gz",
+        "archiveFileName": "package_multi_4in1_avr_board_v1.0.9.tar.gz",
+        "checksum": "SHA-256:269c4ddcb8018be2b31f5c9e9f0814d120af492e894b8d5098a814486d56faa5",
+        "size": "318437",
+        "boards": [
+          {"name": "Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)"},
+          {"name": "Multi 4-in-1 (OrangeRX)"}
+        ],
+        "toolsDependencies": []
      },
      {
        "name": "Multi 4-in-1 STM32 Board",
@@ -127,7 +163,7 @@
        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.0.1.tar.gz",
        "archiveFileName": "package_multi_4in1_stm32_board_v1.0.1.tar.gz",
        "checksum": "SHA-256:b522b5d3474308768c197a6897cad037fb54d6fac26c75678415a0908793bae3",
-        "size": "10332106",
+        "size": "10332875",
        "boards": [{
          "name": "Multi 4-in-1 (STM32F103C)"
        }],
@@ -147,7 +183,7 @@
        },
        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.0.2.tar.gz",
        "archiveFileName": "package_multi_4in1_stm32_board_v1.0.2.tar.gz",
-        "checksum": "SHA-256:26D21DBD2FE80680AC523B8BCA24B3ECF2C2016BAC626826D20B651E11278287",
+        "checksum": "SHA-256:26d21dbd2fe80680ac523b8bca24b3ecf2c2016bac626826d20b651e11278287",
        "size": "10318646",
        "boards": [{
          "name": "Multi 4-in-1 (STM32F103C)"
@@ -347,7 +383,112 @@
          "version": "4.8.3-2014q1"
        }]
      },
-     {
+      {
+        "name": "Multi 4-in-1 STM32 Board",
+        "architecture": "STM32F1",
+        "version": "1.1.2",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.1.2.tar.gz",
+        "archiveFileName": "package_multi_4in1_stm32_board_v1.1.2.tar.gz",
+        "checksum": "SHA-256:debfdc14df3023045a2297bc99daf7104be75f21572fc5a4f57192ffae4028f0",
+        "size": "10322776",
+        "boards": [{
+          "name": "Multi 4-in-1 (STM32F103C)"
+        }],
+        "toolsDependencies": [{
+          "packager": "arduino",
+          "name": "arm-none-eabi-gcc",
+          "version": "4.8.3-2014q1"
+        }]
+      },
+      {
+        "name": "Multi 4-in-1 STM32 Board",
+        "architecture": "STM32F1",
+        "version": "1.1.3",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.1.3.tar.gz",
+        "archiveFileName": "package_multi_4in1_stm32_board_v1.1.3.tar.gz",
+        "checksum": "SHA-256:6b9dceb033ccc31f37cebc4f025ddb862cd24a733e7c356ca2fa5719d595af89",
+        "size": "10322145",
+        "boards": [{
+          "name": "Multi 4-in-1 (STM32F103C)"
+        }],
+        "toolsDependencies": [{
+          "packager": "arduino",
+          "name": "arm-none-eabi-gcc",
+          "version": "4.8.3-2014q1"
+        }]
+      },
+      {
+        "name": "Multi 4-in-1 STM32 Board",
+        "architecture": "STM32F1",
+        "version": "1.1.4",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.1.4.tar.gz",
+        "archiveFileName": "package_multi_4in1_stm32_board_v1.1.4.tar.gz",
+        "checksum": "SHA-256:16a83a3b4409cb55aead6593396979483996080634d214ae07c8a956db2480fb",
+        "size": "10322152",
+        "boards": [{
+          "name": "Multi 4-in-1 (STM32F103C)"
+        }],
+        "toolsDependencies": [{
+          "packager": "arduino",
+          "name": "arm-none-eabi-gcc",
+          "version": "4.8.3-2014q1"
+        }]
+      },
+      {
+        "name": "Multi 4-in-1 STM32 Board",
+        "architecture": "STM32F1",
+        "version": "1.1.5",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.1.5.tar.gz",
+        "archiveFileName": "package_multi_4in1_stm32_board_v1.1.5.tar.gz",
+        "checksum": "SHA-256:2d45c95f59b4fb9fc7f7bf8caca2dd8c13b4258141c20db6169e0c7faf72e5e4",
+        "size": "7930904",
+        "boards": [{
+          "name": "Multi 4-in-1 (STM32F103C)"
+        }],
+        "toolsDependencies": [{
+          "packager": "arduino",
+          "name": "arm-none-eabi-gcc",
+          "version": "4.8.3-2014q1"
+        }]
+      },
+      {
+        "name": "Multi 4-in-1 STM32 Board",
+        "architecture": "STM32F1",
+        "version": "1.1.6",
+        "category": "Contributed",
+        "help": {
+          "online": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module"
+        },
+        "url": "https://github.com/pascallanger/DIY-Multiprotocol-TX-Module-Boards/raw/master/archives/package_multi_4in1_stm32_board_v1.1.6.tar.gz",
+        "archiveFileName": "package_multi_4in1_stm32_board_v1.1.6.tar.gz",
+        "checksum": "SHA-256:d2d1ef721bbcdc3c680c6f98b4b8ab394478ac0f82d67af2f6c389a4a30789f4",
+        "size": "7962942",
+        "boards": [{
+          "name": "Multi 4-in-1 (STM32F103C)"
+        }],
+        "toolsDependencies": [{
+          "packager": "arduino",
+          "name": "arm-none-eabi-gcc",
+          "version": "4.8.3-2014q1"
+        }]
+      },
+      {
        "name": "Multi 4-in-1 OrangeRX Board - DEPRECATED, USE MULTI 4-IN-1 AVR BOARDS PACKAGE INSTEAD",
        "architecture": "orangerx",
        "version": "1.0.1",
--- a/Multiprotocol/A7105_SPI.ino
+++ b/Multiprotocol/A7105_SPI.ino
@@ -183,8 +183,8 @@ void A7105_AdjustLOBaseFreq(uint8_t cmd)
 				#endif
 				break;
 			case PROTO_BUGS:
-				#ifdef FORCE_HUBSAN_TUNING
-					offset=(int16_t)FORCE_HUBSAN_TUNING;
+				#ifdef FORCE_BUGS_TUNING
+					offset=(int16_t)FORCE_BUGS_TUNING;
 				#endif
 				break;
 			case PROTO_FLYSKY:
@@ -192,6 +192,11 @@ void A7105_AdjustLOBaseFreq(uint8_t cmd)
 					offset=(int16_t)FORCE_FLYSKY_TUNING;
 				#endif
 				break;
+			case PROTO_FLYZONE:
+				#ifdef FORCE_FLYZONE_TUNING
+					offset=(int16_t)FORCE_FLYZONE_TUNING;
+				#endif
+				break;
 			case PROTO_AFHDS2A:
 				#ifdef FORCE_AFHDS2A_TUNING
 					offset=(int16_t)FORCE_AFHDS2A_TUNING;
@@ -247,22 +252,6 @@ static void __attribute__((unused)) A7105_SetVCOBand(uint8_t vb1, uint8_t vb2)
 		A7105_WriteReg(A7105_25_VCO_SBCAL_I, vb2 | 0x08);
 }

-#ifdef HUBSAN_A7105_INO
-const uint8_t PROGMEM HUBSAN_A7105_regs[] = {
-	0xFF, 0x63, 0xFF, 0x0F, 0xFF, 0xFF, 0xFF ,0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x05, 0x04, 0xFF,	// 00 - 0f
-	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x2B, 0xFF, 0xFF, 0x62, 0x80, 0xFF, 0xFF, 0x0A, 0xFF, 0xFF, 0x07,	// 10 - 1f
-	0x17, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x47, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,	// 20 - 2f
-	0xFF, 0xFF // 30 - 31
-};
-#endif
-#ifdef FLYSKY_A7105_INO
-const uint8_t PROGMEM FLYSKY_A7105_regs[] = {
-	0xff, 0x42, 0x00, 0x14, 0x00, 0xff, 0xff ,0x00, 0x00, 0x00, 0x00, 0x01, 0x21, 0x05, 0x00, 0x50,	// 00 - 0f
-	0x9e, 0x4b, 0x00, 0x02, 0x16, 0x2b, 0x12, 0x00, 0x62, 0x80, 0x80, 0x00, 0x0a, 0x32, 0xc3, 0x0f,	// 10 - 1f
-	0x13, 0xc3, 0x00, 0xff, 0x00, 0x00, 0x3b, 0x00, 0x17, 0x47, 0x80, 0x03, 0x01, 0x45, 0x18, 0x00,	// 20 - 2f
-	0x01, 0x0f // 30 - 31
-};
-#endif
 #ifdef AFHDS2A_A7105_INO
 const uint8_t PROGMEM AFHDS2A_A7105_regs[] = {
 	0xFF, 0x42 | (1<<5), 0x00, 0x25, 0x00, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x01, 0x3c, 0x05, 0x00, 0x50,	// 00 - 0f
@@ -279,6 +268,30 @@ const uint8_t PROGMEM BUGS_A7105_regs[] = {
 	0x01, 0x0f // 30 - 31
 };
 #endif
+#ifdef FLYSKY_A7105_INO
+const uint8_t PROGMEM FLYSKY_A7105_regs[] = {
+	0xff, 0x42, 0x00, 0x14, 0x00, 0xff, 0xff ,0x00, 0x00, 0x00, 0x00, 0x01, 0x21, 0x05, 0x00, 0x50,	// 00 - 0f
+	0x9e, 0x4b, 0x00, 0x02, 0x16, 0x2b, 0x12, 0x00, 0x62, 0x80, 0x80, 0x00, 0x0a, 0x32, 0xc3, 0x0f,	// 10 - 1f
+	0x13, 0xc3, 0x00, 0xff, 0x00, 0x00, 0x3b, 0x00, 0x17, 0x47, 0x80, 0x03, 0x01, 0x45, 0x18, 0x00,	// 20 - 2f
+	0x01, 0x0f // 30 - 31
+};
+#endif
+#ifdef FLYZONE_A7105_INO
+const uint8_t PROGMEM FLYZONE_A7105_regs[] = {
+	0xff, 0x42, 0x00, 0x07, 0x00, 0xff, 0xff ,0x00, 0x00, 0x00, 0x00, 0x01, 0x21, 0x05, 0x01, 0x50,	// 00 - 0f
+	0x9e, 0x4b, 0x00, 0x02, 0x16, 0x2b, 0x12, 0x00, 0x62, 0x80, 0x80, 0x00, 0x0a, 0x32, 0xc3, 0x1f,	// 10 - 1f
+	0x12, 0x00, 0x00, 0xff, 0x00, 0x00, 0x3a, 0x00, 0x3f, 0x47, 0x80, 0x03, 0x01, 0x45, 0x18, 0x00,	// 20 - 2f
+	0x01, 0x0f // 30 - 31
+};
+#endif
+#ifdef HUBSAN_A7105_INO
+const uint8_t PROGMEM HUBSAN_A7105_regs[] = {
+	0xFF, 0x63, 0xFF, 0x0F, 0xFF, 0xFF, 0xFF ,0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x05, 0x04, 0xFF,	// 00 - 0f
+	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x2B, 0xFF, 0xFF, 0x62, 0x80, 0xFF, 0xFF, 0x0A, 0xFF, 0xFF, 0x07,	// 10 - 1f
+	0x17, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x47, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,	// 20 - 2f
+	0xFF, 0xFF // 30 - 31
+};
+#endif

 #define ID_NORMAL 0x55201041
 #define ID_PLUS   0xAA201041
@@ -287,6 +300,14 @@ void A7105_Init(void)
 	uint8_t *A7105_Regs=0;
    uint8_t vco_calibration0, vco_calibration1;
 	
+	#ifdef FLYZONE_A7105_INO
+		if(protocol==PROTO_FLYZONE)
+		{
+			A7105_Regs=(uint8_t*)FLYZONE_A7105_regs;
+			A7105_WriteID(0x25A53C45);
+		}
+		else
+	#endif
 	#ifdef BUGS_A7105_INO
 		if(protocol==PROTO_BUGS)
 			A7105_Regs=(uint8_t*)BUGS_A7105_regs;
@@ -360,7 +381,21 @@ void A7105_Init(void)
 		A7105_SetVCOBand(vco_calibration0 & 0x07, vco_calibration1 & 0x07);	// Set calibration band value to best match
 	else
 		if(protocol!=PROTO_HUBSAN)
-			A7105_WriteReg(A7105_25_VCO_SBCAL_I,protocol==PROTO_FLYSKY?0x08:0x0A);	//Reset VCO Band calibration
+		{
+			switch(protocol)
+			{
+				case PROTO_FLYSKY:
+					vco_calibration1=0x08;
+					break;
+				case PROTO_FLYZONE:
+					vco_calibration1=0x02;
+					break;
+				default:
+					vco_calibration1=0x0A;
+					break;
+			}
+			A7105_WriteReg(A7105_25_VCO_SBCAL_I,vco_calibration1);	//Reset VCO Band calibration
+		}

 	A7105_SetTxRxMode(TX_EN);
 	A7105_SetPower();
--- a/Multiprotocol/AFHDS2A_a7105.ino
+++ b/Multiprotocol/AFHDS2A_a7105.ino
@@ -78,56 +78,61 @@ enum{

 static void AFHDS2A_update_telemetry()
 {
+	if(packet[0]==0xAA && packet[9]==0xFD)
+		return;	// ignore packets which contain the RX configuration: FD FF 32 00 01 00 FF FF FF 05 DC 05 DE FA FF FF FF FF FF FF FF FF FF FF FF FF FF FF
 	// Read TX RSSI
 	int16_t temp=256-(A7105_ReadReg(A7105_1D_RSSI_THOLD)*8)/5;		// value from A7105 is between 8 for maximum signal strength to 160 or less
 	if(temp<0) temp=0;
 	else if(temp>255) temp=255;
 	TX_RSSI=temp;
 	// AA | TXID | rx_id | sensor id | sensor # | value 16 bit big endian | sensor id ......
-	// max 7 sensors per packet
+	// AC | TXID | rx_id | sensor id | sensor # | length | bytes | sensor id ......
 	#ifdef AFHDS2A_FW_TELEMETRY
 		if (option & 0x80)
-		{
-			// forward telemetry to TX, skip rx and tx id to save space
+		{// forward 0xAA and 0xAC telemetry to TX, skip rx and tx id to save space
 			pkt[0]= TX_RSSI;
-			debug("T=");
-			for(int i=9;i < AFHDS2A_RXPACKET_SIZE; i++)
+			debug("T(%02X)=",packet[0]);
+			for(uint8_t i=9;i < AFHDS2A_RXPACKET_SIZE; i++)
 			{
 				pkt[i-8]=packet[i];
 				debug(" %02X",packet[i]);
 			}
-			debugln("");
+			pkt[29]=packet[0];	// 0xAA Normal telemetry, 0xAC Extended telemetry
 			telemetry_link=2;
+			debugln("");
 			return;
 		}
 	#endif
 	#ifdef AFHDS2A_HUB_TELEMETRY
-		for(uint8_t sensor=0; sensor<7; sensor++)
-		{
-			// Send FrSkyD telemetry to TX
-			uint8_t index = 9+(4*sensor);
-			switch(packet[index])
+		if(packet[0]==0xAA)
+		{ // 0xAA Normal telemetry, 0xAC Extended telemetry not decoded here
+			for(uint8_t sensor=0; sensor<7; sensor++)
 			{
-				case AFHDS2A_SENSOR_RX_VOLTAGE:
-					//v_lipo1 = packet[index+3]<<8 | packet[index+2];
-					v_lipo1 = packet[index+2];
-					telemetry_link=1;
-					break;
-				case AFHDS2A_SENSOR_A3_VOLTAGE:
-					v_lipo2 = (packet[index+3]<<5) | (packet[index+2]>>3);	// allows to read voltage up to 4S
-					telemetry_link=1;
-					break;
-				case AFHDS2A_SENSOR_RX_ERR_RATE:
-					RX_LQI=packet[index+2];
-					break;
-				case AFHDS2A_SENSOR_RX_RSSI:
-					RX_RSSI = -packet[index+2];
-					break;
-				case 0xff:
-					return;
-				/*default:
-					// unknown sensor ID
-					break;*/
+				// Send FrSkyD telemetry to TX
+				uint8_t index = 9+(4*sensor);
+				switch(packet[index])
+				{
+					case AFHDS2A_SENSOR_RX_VOLTAGE:
+						//v_lipo1 = packet[index+3]<<8 | packet[index+2];
+						v_lipo1 = packet[index+2];
+						telemetry_link=1;
+						break;
+					case AFHDS2A_SENSOR_A3_VOLTAGE:
+						v_lipo2 = (packet[index+3]<<5) | (packet[index+2]>>3);	// allows to read voltage up to 4S
+						telemetry_link=1;
+						break;
+					case AFHDS2A_SENSOR_RX_ERR_RATE:
+						RX_LQI=packet[index+2];
+						break;
+					case AFHDS2A_SENSOR_RX_RSSI:
+						RX_RSSI = -packet[index+2];
+						break;
+					case 0xff: // end of data
+						return;
+					/*default:
+						// unknown sensor ID
+						break;*/
+				}
 			}
 		}
 	#endif
@@ -271,6 +276,11 @@ uint16_t ReadAFHDS2A()
 				}
 			}
 			packet_count++;
+			if(IS_BIND_DONE)
+			{ // exit bind if asked to do so from the GUI
+				phase = AFHDS2A_BIND4;
+				return 3850;
+			}
 			phase |= AFHDS2A_WAIT_WRITE;
 			return 1700;
 		case AFHDS2A_BIND1|AFHDS2A_WAIT_WRITE:
@@ -328,25 +338,26 @@ uint16_t ReadAFHDS2A()
 			if(!(A7105_ReadReg(A7105_00_MODE) & (1<<5 | 1<<6)) && data_rx==1)
 			{ // RX+FECF+CRCF Ok
 				A7105_ReadData(AFHDS2A_RXPACKET_SIZE);
-				if(packet[0] == 0xaa)
-				{
-					if(packet[9] == 0xfc)
-						packet_type=AFHDS2A_PACKET_SETTINGS;	// RX is asking for settings
-					else
+				if(packet[0] == 0xAA && packet[9] == 0xFC)
+					packet_type=AFHDS2A_PACKET_SETTINGS;	// RX is asking for settings
+				else
+					if(packet[0] == 0xAA || packet[0] == 0xAC)
 					{
-						#ifdef AFHDS2A_LQI_CH
-							for(uint8_t sensor=0; sensor<7; sensor++)
-							{//read LQI value for RX output
-								uint8_t index = 9+(4*sensor);
-								if(packet[index]==AFHDS2A_SENSOR_RX_ERR_RATE)
-									RX_LQI=packet[index+2];
-							}
-						#endif
-						#if defined(AFHDS2A_FW_TELEMETRY) || defined(AFHDS2A_HUB_TELEMETRY)
-							AFHDS2A_update_telemetry();
-						#endif
+						if(!memcmp(&packet[1], rx_tx_addr, 4))
+						{ // Validate TX address
+							#ifdef AFHDS2A_LQI_CH
+								for(uint8_t sensor=0; sensor<7; sensor++)
+								{//read LQI value for RX output
+									uint8_t index = 9+(4*sensor);
+									if(packet[index]==AFHDS2A_SENSOR_RX_ERR_RATE)
+										RX_LQI=packet[index+2];
+								}
+							#endif
+							#if defined(AFHDS2A_FW_TELEMETRY) || defined(AFHDS2A_HUB_TELEMETRY)
+								AFHDS2A_update_telemetry();
+							#endif
+						}
 					}
-				}
 			}
 			packet_counter++;
 			phase |= AFHDS2A_WAIT_WRITE;
--- a/Multiprotocol/BUGSMINI_nrf24l01.ino
+++ b/Multiprotocol/BUGSMINI_nrf24l01.ino
@@ -42,6 +42,7 @@ enum {
 #define BUGSMINI_CH_SW_PICTURE	CH8_SW
 #define BUGSMINI_CH_SW_VIDEO	CH9_SW
 #define BUGSMINI_CH_SW_LED		CH10_SW
+#define BUGSMINI_CH_SW_ALTHOLD	CH11_SW

 // flags packet[12]
 #define BUGSMINI_FLAG_FLIP    0x08    // automatic flip
@@ -54,6 +55,7 @@ enum {
 #define BUGSMINI_FLAG_ARM     0x40    // arm (toggle to turn on motors)
 #define BUGSMINI_FLAG_DISARM  0x20    // disarm (toggle to turn off motors)
 #define BUGSMINI_FLAG_ANGLE   0x02    // angle/acro mode (set is angle mode)
+#define BUGSMINI_FLAG_ALTHOLD 0x04    // angle/altitude hold mode (set is altitude mode)

 static void __attribute__((unused)) BUGSMINI_init()
 {
@@ -133,7 +135,7 @@ static void __attribute__((unused)) BUGSMINI_send_packet(uint8_t bind)
 		packet[10]= (((rudder / 5) >> 1) + 7)    // dynamic trim 0x07 - 0x39
 					| (rudder << 7);
 		packet[11]= 0x40 | (throttle << 7);
-		packet[12]= 0x80 | ((packet[12] ^ 0x40) & 0x40) // bugs 3 H doesn't have 0x80 ?
+		packet[12]= 0x80 | ((packet[12] ^ 0x40) & 0x40)
 			| BUGSMINI_FLAG_MODE
 			| GET_FLAG(BUGSMINI_CH_SW_PICTURE, BUGSMINI_FLAG_PICTURE)
 			| GET_FLAG(BUGSMINI_CH_SW_VIDEO, BUGSMINI_FLAG_VIDEO);
@@ -141,10 +143,11 @@ static void __attribute__((unused)) BUGSMINI_send_packet(uint8_t bind)
 			packet[12] |= GET_FLAG(BUGSMINI_CH_SW_FLIP, BUGSMINI_FLAG_FLIP);
 		packet[13] = arm_flags
 			| GET_FLAG(BUGSMINI_CH_SW_LED, BUGSMINI_FLAG_LED)
+			| GET_FLAG(BUGSMINI_CH_SW_ALTHOLD, BUGSMINI_FLAG_ALTHOLD)
 			| GET_FLAG(BUGSMINI_CH_SW_ANGLE, BUGSMINI_FLAG_ANGLE);
-
+			// BUGS3H althold -> BUGSMINI_FLAG_ALTHOLD|BUGSMINI_FLAG_ANGLE , angle -> 0
 		packet[14] = 0;
-		packet[15] = 0; // 0x53 on bugs 3 H ?
+		packet[15] = 0; // a lot of 0x53 and some 0x52 on bugs 3H
 	}
 	uint8_t checksum = 0x6d;
 	for(uint8_t i=1; i < BUGSMINI_TX_PAYLOAD_SIZE; i++)
@@ -309,8 +312,8 @@ uint16_t BUGSMINI_callback()
 		case BUGSMINI_DATA2:
 			// switch to RX mode
 			NRF24L01_SetTxRxMode(TXRX_OFF);
-			NRF24L01_SetTxRxMode(RX_EN);
 			NRF24L01_FlushRx();
+			NRF24L01_SetTxRxMode(RX_EN);
 			XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) 
 							| _BV(NRF24L01_00_PWR_UP) | _BV(NRF24L01_00_PRIM_RX));
 			phase = BUGSMINI_DATA1;
--- a/Multiprotocol/Bayang_nrf24l01.ino
+++ b/Multiprotocol/Bayang_nrf24l01.ino
@@ -62,7 +62,7 @@ static void __attribute__((unused)) BAYANG_send_packet(uint8_t bind)
 			else
 	#else
 		if(option & BAYANG_OPTION_FLAG_ANALOGAUX)
-			packet[0]= 0xA2;	// analog aux is enabled
+			packet[0]= 0xA2;		// analog aux is enabled
 		else
 	#endif
 			packet[0]= 0xA4;
@@ -80,6 +80,10 @@ static void __attribute__((unused)) BAYANG_send_packet(uint8_t bind)
 				packet[10] = 0x30;
 				packet[11] = 0x01;
 				break;
+			case DHD_D4:
+				packet[10] = 0xC8;
+				packet[11] = 0x99;
+				break;
 			default:
 				packet[10] = rx_tx_addr[0];	// txid[0]
 				packet[11] = rx_tx_addr[1];	// txid[1]
@@ -106,7 +110,7 @@ static void __attribute__((unused)) BAYANG_send_packet(uint8_t bind)
 			packet[1] = convert_channel_8b(CH14);
 		}
 		else
-			packet[1] = 0xFA;		// normal mode is 0xf7, expert 0xfa
+			packet[1] = 0xFA;		// normal mode is 0xF7, expert 0xFa , D4 normal is 0xF4

 		//Flags packet[2]
 		packet[2] = 0x00;
@@ -164,11 +168,14 @@ static void __attribute__((unused)) BAYANG_send_packet(uint8_t bind)
 			packet[12] = 0xE0;
 			packet[13] = 0x2E;
 			break;
+		case DHD_D4:
+			packet[12] = 0x37;	//0x17 during bind
+			packet[13] = 0xED;
+			break;
 		default:
 			packet[12] = rx_tx_addr[2];	// txid[2]
 			if (option & BAYANG_OPTION_FLAG_ANALOGAUX)
-			{
-				// Analog aux channel 2 (channel 15)
+			{	// Analog aux channel 2 (channel 15)
 				packet[13] = convert_channel_8b(CH15);
 			}
 			else
@@ -325,7 +332,10 @@ uint16_t BAYANG_callback()
 static void __attribute__((unused)) BAYANG_initialize_txid()
 {
 	//Could be using txid[0..2] but using rx_tx_addr everywhere instead...
-	hopping_frequency[0]=0;
+	if(sub_protocol==DHD_D4)
+		hopping_frequency[0]=(rx_tx_addr[2]&0x07)|0x01;
+	else
+		hopping_frequency[0]=0;
 	hopping_frequency[1]=(rx_tx_addr[3]&0x1F)+0x10;
 	hopping_frequency[2]=hopping_frequency[1]+0x20;
 	hopping_frequency[3]=hopping_frequency[2]+0x20;
--- a/Multiprotocol/Bugs_a7105.ino
+++ b/Multiprotocol/Bugs_a7105.ino
@@ -284,10 +284,11 @@ static void  __attribute__((unused))BUGS_set_radio_data()
 	{
 		offset=BUGS_NUM_RFCHAN;
 		// Read radio_id from EEPROM
-		radio_id=0;
-		uint8_t base_adr=BUGS_EEPROM_OFFSET+RX_num*4;
-		for(uint8_t i=0; i<4; i++)
-			radio_id|=eeprom_read_byte((EE_ADDR)(base_adr+i))<<(i*8);
+		uint8_t base_adr=BUGS_EEPROM_OFFSET+RX_num*2;
+		uint16_t rxid=0;
+		for(uint8_t i=0; i<2; i++)
+			rxid|=eeprom_read_byte((EE_ADDR)(base_adr+i))<<(i*8);
+		radio_id = BUGS_rxid_to_radioid(rxid);
 	}
 	A7105_WriteID(radio_id);

@@ -318,7 +319,6 @@ uint16_t ReadBUGS(void)
 {
 	uint8_t mode, base_adr;
 	uint16_t rxid;
-	uint32_t radio_id;
 	uint16_t start;

 	// keep frequency tuning updated
@@ -374,10 +374,9 @@ uint16_t ReadBUGS(void)
 			BIND_DONE;
 			// set radio_id
 			rxid = (packet[1] << 8) + packet[2];
-			radio_id = BUGS_rxid_to_radioid(rxid);
-			base_adr=BUGS_EEPROM_OFFSET+RX_num*4;
-			for(uint8_t i=0; i<4; i++)
-				eeprom_write_byte((EE_ADDR)(base_adr+i),radio_id>>(i*8));	// Save radio_id in EEPROM
+			base_adr=BUGS_EEPROM_OFFSET+RX_num*2;
+			for(uint8_t i=0; i<2; i++)
+				eeprom_write_byte((EE_ADDR)(base_adr+i),rxid>>(i*8));	// Save rxid in EEPROM
 			BUGS_set_radio_data();
 			phase = BUGS_DATA_1;
 			packet_count = 0;
@@ -437,11 +436,11 @@ uint16_t ReadBUGS(void)

 uint16_t initBUGS(void)
 {
-	uint32_t radio_id=0;
-	uint8_t base_adr=BUGS_EEPROM_OFFSET+RX_num*4;
-	for(uint8_t i=0; i<4; i++)
-		radio_id|=eeprom_read_byte((EE_ADDR)(base_adr+i))<<(i*8);
-	if(radio_id==0xffffffff)
+	uint16_t rxid=0;
+	uint8_t base_adr=BUGS_EEPROM_OFFSET+RX_num*2;
+	for(uint8_t i=0; i<2; i++)
+		rxid|=eeprom_read_byte((EE_ADDR)(base_adr+i))<<(i*8);
+	if(rxid==0xffff)
 		BIND_IN_PROGRESS;

 	BUGS_set_radio_data();
--- a/Multiprotocol/CFlie_nrf24l01.ino
+++ b/Multiprotocol/CFlie_nrf24l01.ino
@@ -109,8 +109,6 @@ static uint8_t tx_payload_len = 0; // Length of the packet stored in packet
 static uint8_t rx_payload_len = 0; // Length of the packet stored in rx_packet
 static uint8_t rx_packet[MAX_PACKET_SIZE]; // For reading in ACK payloads

-static uint16_t cflie_counter;
-static uint32_t packet_counter;
 static uint8_t data_rate;

 enum {
@@ -194,8 +192,6 @@ static void send_packet()
    // Transmit the payload
    NRF24L01_WritePayload(packet, tx_payload_len);

-    ++packet_counter;
-
    // // Check and adjust transmission power.
    NRF24L01_SetPower();
 }
@@ -256,7 +252,6 @@ static void send_search_packet()

 	NRF24L01_WritePayload(buf, sizeof(buf));

-	++packet_counter;
 }

 // Frac 16.16
@@ -782,7 +777,6 @@ static uint16_t cflie_callback()
            break;
        case PKT_TIMEOUT:
            send_search_packet();
-            cflie_counter = CFLIE_BIND_COUNT;
        }
        break;

--- a/Multiprotocol/CYRF6936_SPI.ino
+++ b/Multiprotocol/CYRF6936_SPI.ino
@@ -152,6 +152,17 @@ void CYRF_SetPower(uint8_t val)
 		CYRF_WriteRegister(CYRF_03_TX_CFG,power);
 		prev_power=power;
 	}
+
+	#ifdef USE_CYRF6936_CH15_TUNING
+		static uint16_t Channel15=1024;
+		if(Channel15!=Channel_data[CH15])
+		{ // adjust frequency
+			Channel15=Channel_data[CH15]+0x155;	// default value is 0x555 = 0x400 + 0x155
+			CYRF_WriteRegister(CYRF_1B_TX_OFFSET_LSB, Channel15&0xFF);
+			CYRF_WriteRegister(CYRF_1C_TX_OFFSET_MSB, Channel15>>8);
+			Channel15-=0x155;
+		}
+	#endif
 }

 /*
--- a/Multiprotocol/Common.ino
+++ b/Multiprotocol/Common.ino
@@ -13,28 +13,6 @@
 along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
 */

-#ifdef FAILSAFE_ENABLE
-//Convert from percentage to failsafe value
-#define FAILSAFE_THROTTLE_LOW_VAL (((FAILSAFE_THROTTLE_LOW+125)*1024)/125)
-#if FAILSAFE_THROTTLE_LOW_VAL <= 0
-	#undef FAILSAFE_THROTTLE_LOW_VAL
-	#define FAILSAFE_THROTTLE_LOW_VAL 1
-#elif (FAILSAFE_THROTTLE_LOW_VAL) >= 2046
-	#undef FAILSAFE_THROTTLE_LOW_VAL
-	#define FAILSAFE_THROTTLE_LOW_VAL 2046
-#endif
-void InitFailsafe()
-{
-	for(uint8_t i=0;i<NUM_CHN;i++)
-		Failsafe_data[i]=1024;
-	Failsafe_data[THROTTLE]=(uint16_t)FAILSAFE_THROTTLE_LOW_VAL;	//1=-125%, 204=-100%
-	FAILSAFE_VALUES_on;
-	#ifdef FAILSAFE_SERIAL_ONLY
-		if(mode_select == MODE_SERIAL)
-			FAILSAFE_VALUES_off;
-	#endif
-}
-#endif
 #ifdef ENABLE_PPM
 void InitPPM()
 {
@@ -56,7 +34,38 @@ void InitChannel()
 /************************/
 /**  Convert routines  **/
 /************************/
-// Revert a channel and store it
+// Convert channel 8b with limit and deadband
+uint8_t convert_channel_8b_limit_deadband(uint8_t num,uint8_t min,uint8_t mid, uint8_t max, uint8_t deadband)
+{
+	uint16_t val=limit_channel_100(num);		// 204<->1844
+	uint16_t db_low=CHANNEL_MID-deadband, db_high=CHANNEL_MID+deadband; // 1024+-deadband
+	int32_t calc;
+	uint8_t out;
+	if(val>=db_low && val<=db_high)
+		return mid;
+	else if(val<db_low)
+	{
+		val-=CHANNEL_MIN_100;
+		calc=mid-min;
+		calc*=val;
+		calc/=(db_low-CHANNEL_MIN_100);
+		out=calc;
+		out+=min;
+	}
+	else
+	{
+		val-=db_high;
+		calc=max-mid;
+		calc*=val;
+		calc/=(CHANNEL_MAX_100-db_high+1);
+		out=calc;
+		out+=mid;
+		if(max>min) out++; else out--;
+	}
+	return out;
+}
+
+// Reverse a channel and store it
 void reverse_channel(uint8_t num)
 {
 	uint16_t val=2048-Channel_data[num];
@@ -67,7 +76,7 @@ void reverse_channel(uint8_t num)
 uint16_t convert_channel_ppm(uint8_t num)
 {
 	uint16_t val=Channel_data[num];
-	return (((val<<2)+val)>>3)+860;									//value range 860<->2140 -125%<->+125%
+	return (((val<<2)+val)>>3)+860;				//value range 860<->2140 -125%<->+125%
 }
 // Channel value 100% is converted to 10bit values 0<->1023
 uint16_t convert_channel_10b(uint8_t num)
@@ -149,6 +158,29 @@ uint16_t convert_channel_frsky(uint8_t num)
 /******************************/
 /**  FrSky D and X routines  **/
 /******************************/
+
+#if defined(FRSKYX_CC2500_INO) || defined(FRSKYX_RX_CC2500_INO)
+//**CRC**
+const uint16_t PROGMEM frskyX_CRC_Short[]={
+	0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF,
+	0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7 };
+static uint16_t __attribute__((unused)) frskyX_CRCTable(uint8_t val)
+{
+	uint16_t word ;
+	word = pgm_read_word(&frskyX_CRC_Short[val&0x0F]) ;
+	val /= 16 ;
+	return word ^ (0x1081 * val) ;
+}
+uint16_t frskyX_crc_x(uint8_t *data, uint8_t len)
+{
+	uint16_t crc = 0;
+	for(uint8_t i=0; i < len; i++)
+		crc = (crc<<8) ^ frskyX_CRCTable((uint8_t)(crc>>8) ^ *data++);
+	return crc;
+}
+#endif
+
+
 #if defined(FRSKYD_CC2500_INO) || defined(FRSKYX_CC2500_INO)
 enum {
 	FRSKY_BIND		= 0,
--- a/Multiprotocol/DSM_cyrf6936.ino
+++ b/Multiprotocol/DSM_cyrf6936.ino
@@ -42,7 +42,6 @@ enum {

 //
 uint8_t sop_col;
-uint8_t DSM_num_ch=0;
 uint8_t ch_map[14];
 const uint8_t PROGMEM DSM_ch_map_progmem[][14] = {
 //22+11ms for 4..7 channels
@@ -189,17 +188,17 @@ static void __attribute__((unused)) DSM_build_bind_packet()
 	packet[8] = sum >> 8;
 	packet[9] = sum & 0xff;
 	packet[10] = 0x01; //???
-	packet[11] = DSM_num_ch;
+	packet[11] = num_ch;

 	if (sub_protocol==DSM2_22)
-		packet[12]=DSM_num_ch<8?0x01:0x02;	// DSM2/1024 1 or 2 packets depending on the number of channels
+		packet[12]=num_ch<8?0x01:0x02;	// DSM2/1024 1 or 2 packets depending on the number of channels
 	if(sub_protocol==DSM2_11)
 		packet[12]=0x12;					// DSM2/2048 2 packets
 	if(sub_protocol==DSMX_22)
 		#if defined DSM_TELEMETRY
 			packet[12] = 0xb2;				// DSMX/2048 2 packets
 		#else
-			packet[12] = DSM_num_ch<8? 0xa2 : 0xb2;	// DSMX/2048 1 or 2 packets depending on the number of channels
+			packet[12] = num_ch<8? 0xa2 : 0xb2;	// DSMX/2048 1 or 2 packets depending on the number of channels
 		#endif
 	if(sub_protocol==DSMX_11 || sub_protocol==DSM_AUTO) // Force DSMX/1024 in mode Auto
 		packet[12]=0xb2;					// DSMX/1024 2 packets
@@ -229,15 +228,15 @@ static void __attribute__((unused)) DSM_update_channels()
 {
 	prev_option=option;
 	if(sub_protocol==DSM_AUTO)
-		DSM_num_ch=12;						// Force 12 channels in mode Auto
+		num_ch=12;						// Force 12 channels in mode Auto
 	else
-		DSM_num_ch=option;
-	if(DSM_num_ch<4 || DSM_num_ch>12)
-		DSM_num_ch=6;						// Default to 6 channels if invalid choice...
+		num_ch=option;
+	if(num_ch<4 || num_ch>12)
+		num_ch=6;						// Default to 6 channels if invalid choice...

 	// Create channel map based on number of channels and refresh rate
-	uint8_t idx=DSM_num_ch-4;
-	if(DSM_num_ch>7 && DSM_num_ch<11 && (sub_protocol==DSM2_11 || sub_protocol==DSMX_11))
+	uint8_t idx=num_ch-4;
+	if(num_ch>7 && num_ch<11 && (sub_protocol==DSM2_11 || sub_protocol==DSMX_11))
 		idx+=5;								// In 11ms mode change index only for channels 8..10
 	for(uint8_t i=0;i<14;i++)
 		ch_map[i]=pgm_read_byte_near(&DSM_ch_map_progmem[idx][i]);
@@ -376,9 +375,13 @@ static uint8_t __attribute__((unused)) DSM_Check_RX_packet()

 uint16_t ReadDsm()
 {
-#define DSM_CH1_CH2_DELAY	4010			// Time between write of channel 1 and channel 2
-#define DSM_WRITE_DELAY		1950			// Time after write to verify write complete
-#define DSM_READ_DELAY		600				// Time before write to check read phase, and switch channels. Was 400 but 600 seems what the 328p needs to read a packet
+	#define DSM_CH1_CH2_DELAY	4010			// Time between write of channel 1 and channel 2
+	#ifdef STM32_BOARD
+		#define DSM_WRITE_DELAY		1500		// Time after write to verify write complete
+	#else
+		#define DSM_WRITE_DELAY		1950		// Time after write to verify write complete
+	#endif
+	#define DSM_READ_DELAY		600				// Time before write to check read phase, and switch channels. Was 400 but 600 seems what the 328p needs to read a packet
 	#if defined DSM_TELEMETRY
 		uint8_t rx_phase;
 		uint8_t len;
@@ -465,6 +468,7 @@ uint16_t ReadDsm()
 			while ((uint8_t)((uint8_t)micros()-(uint8_t)start) < 100)			// Wait max 100µs, max I've seen is 50µs
 				if((CYRF_ReadRegister(CYRF_02_TX_CTRL) & 0x80) == 0x00)
 					break;
+			
 			if(phase==DSM_CH1_CHECK_A || phase==DSM_CH1_CHECK_B)
 			{
 				#if defined DSM_TELEMETRY
@@ -505,7 +509,7 @@ uint16_t ReadDsm()
 				telemetry_link=1;
 			}
 			CYRF_WriteRegister(CYRF_29_RX_ABORT, 0x20);		// Abort RX operation
-			if (phase == DSM_CH2_READ_A && (sub_protocol==DSM2_22 || sub_protocol==DSMX_22) && DSM_num_ch < 8)	// 22ms mode
+			if (phase == DSM_CH2_READ_A && (sub_protocol==DSM2_22 || sub_protocol==DSMX_22) && num_ch < 8)	// 22ms mode
 			{
 				CYRF_SetTxRxMode(RX_EN);					// Force end state read
 				CYRF_WriteRegister(CYRF_29_RX_ABORT, 0x00);	// Clear abort RX operation
@@ -526,7 +530,7 @@ uint16_t ReadDsm()
 			DSM_set_sop_data_crc();
 			if (phase == DSM_CH2_CHECK_A)
 			{
-				if(DSM_num_ch > 7 || sub_protocol==DSM2_11 || sub_protocol==DSMX_11)
+				if(num_ch > 7 || sub_protocol==DSM2_11 || sub_protocol==DSMX_11)
 					phase = DSM_CH1_WRITE_B;				//11ms mode or upper to transmit change from CH2_CHECK_A to CH1_WRITE_A
 				else										
 				{											//Normal mode 22ms
--- a/Multiprotocol/Devo_cyrf6936.ino
+++ b/Multiprotocol/Devo_cyrf6936.ino
@@ -17,8 +17,6 @@
 
 #include "iface_cyrf6936.h"

-#define DEVO_NUM_CHANNELS 8
-
 //For Debug
 //#define NO_SCRAMBLE

@@ -93,7 +91,7 @@ static void __attribute__((unused)) DEVO_add_pkt_suffix()

 static void __attribute__((unused)) DEVO_build_beacon_pkt(uint8_t upper)
 {
-	packet[0] = (DEVO_NUM_CHANNELS << 4) | 0x07;
+	packet[0] = (num_ch << 4) | 0x07;
 	uint8_t max = 8, offset = 0, enable = 0;
 	if (upper)
 	{
@@ -105,7 +103,7 @@ static void __attribute__((unused)) DEVO_build_beacon_pkt(uint8_t upper)
 	{
 		#ifdef FAILSAFE_ENABLE
 			uint16_t failsafe=Failsafe_data[CH_EATR[i+offset]];
-			if(i + offset < DEVO_NUM_CHANNELS && failsafe!=FAILSAFE_CHANNEL_HOLD && IS_FAILSAFE_VALUES_on)
+			if(i + offset < num_ch && failsafe!=FAILSAFE_CHANNEL_HOLD && IS_FAILSAFE_VALUES_on)
 			{
 				enable |= 0x80 >> i;
 				packet[i+1] = ((failsafe*25)>>8)-100;
@@ -122,7 +120,7 @@ static void __attribute__((unused)) DEVO_build_beacon_pkt(uint8_t upper)

 static void __attribute__((unused)) DEVO_build_bind_pkt()
 {
-	packet[0] = (DEVO_NUM_CHANNELS << 4) | 0x0a;
+	packet[0] = (num_ch << 4) | 0x0a;
 	packet[1] = bind_counter & 0xff;
 	packet[2] = (bind_counter >> 8);
 	packet[3] = *hopping_frequency_ptr;
@@ -144,7 +142,7 @@ static void __attribute__((unused)) DEVO_build_data_pkt()
 {
 	static uint8_t ch_idx=0;

-	packet[0] = (DEVO_NUM_CHANNELS << 4) | (0x0b + ch_idx);
+	packet[0] = (num_ch << 4) | (0x0b + ch_idx);
 	uint8_t sign = 0x0b;
 	for (uint8_t i = 0; i < 4; i++)
 	{
@@ -159,7 +157,7 @@ static void __attribute__((unused)) DEVO_build_data_pkt()
 	}
 	packet[9] = sign;
 	ch_idx++;
-	if (ch_idx * 4 >= DEVO_NUM_CHANNELS)
+	if (ch_idx * 4 >= num_ch)
 		ch_idx = 0;
 	DEVO_add_pkt_suffix();
 }
@@ -258,7 +256,7 @@ static void __attribute__((unused)) DEVO_BuildPacket()
 			}
 			break;
 		case DEVO_BOUND_10:
-			DEVO_build_beacon_pkt(DEVO_NUM_CHANNELS > 8 ? failsafe_pkt : 0);
+			DEVO_build_beacon_pkt(num_ch > 8 ? failsafe_pkt : 0);
 			failsafe_pkt = failsafe_pkt ? 0 : 1;
 			DEVO_scramble_pkt();
 			phase = DEVO_BOUND_1;
@@ -301,6 +299,24 @@ uint16_t devo_callback()

 uint16_t DevoInit()
 {	
+	switch(sub_protocol)
+	{
+		case 1:
+			num_ch=10;
+			break;
+		case 2:
+			num_ch=12;
+			break;
+		case 3:
+			num_ch=6;
+			break;
+		case 4:
+			num_ch=7;
+			break;
+		default:
+			num_ch=8;
+			break;
+	}
 	DEVO_cyrf_init();
 	CYRF_GetMfgData(cyrfmfg_id);
 	CYRF_SetTxRxMode(TX_EN);
--- a/Multiprotocol/Flyzone_a7105.ino
+++ b/Multiprotocol/Flyzone_a7105.ino
@@ -0,0 +1,103 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+// Compatible with FZ-410 TX
+
+#if defined(FLYZONE_A7105_INO)
+
+#include "iface_a7105.h"
+
+//#define FLYZONE_FORCEID
+
+#define FLYZONE_BIND_COUNT	220		// 5 sec
+#define FLYZONE_BIND_CH		0x18	// TX, RX for bind end is 0x17
+
+static void __attribute__((unused)) flyzone_build_packet()
+{
+    packet[0] = 0xA5;
+    packet[1] = rx_tx_addr[2];
+    packet[2] = rx_tx_addr[3];
+	packet[3] = convert_channel_8b(AILERON);	//00..80..FF
+	packet[4] = convert_channel_8b(ELEVATOR);	//00..80..FF
+	packet[5] = convert_channel_8b(THROTTLE);	//00..FF
+	packet[6] = convert_channel_8b(RUDDER);		//00..80..FF
+    packet[7] = 0xFF;
+}
+
+uint16_t ReadFlyzone()
+{
+	#ifndef FORCE_FLYZONE_TUNING
+		A7105_AdjustLOBaseFreq(1);
+	#endif
+	if(IS_BIND_IN_PROGRESS)
+	{
+		packet[0] = 0x1B;
+		packet[1] = rx_tx_addr[2];
+		packet[2] = rx_tx_addr[3];
+		A7105_WriteData(3, FLYZONE_BIND_CH);
+		if (bind_counter--==0)
+			BIND_DONE;
+		return 22700;
+	}
+	else
+	{
+		if(phase>19)
+		{
+			phase=0;
+			flyzone_build_packet();
+			A7105_WriteData(8, hopping_frequency[0]);
+			A7105_SetPower();
+		}
+		else
+		{
+			A7105_WriteReg(A7105_0F_PLL_I, hopping_frequency[(phase&0x02)>>1]);
+			A7105_Strobe(A7105_TX);
+		}
+		phase++;
+	}
+	return 1500;
+}
+
+uint16_t initFlyzone()
+{
+	A7105_Init();
+
+	hopping_frequency[0]=((random(0xfefefefe) & 0x0F)+2)<<2;
+	hopping_frequency[1]=hopping_frequency[0]+0x50;
+	
+	#ifdef FLYZONE_FORCEID
+		rx_tx_addr[2]=0x35;
+		rx_tx_addr[3]=0xD0;
+		hopping_frequency[0]=0x18;
+		hopping_frequency[1]=0x68;
+	#endif
+	
+	phase=255;
+	bind_counter = FLYZONE_BIND_COUNT;
+	return 2400;
+}
+#endif
+// Normal packet is 8 bytes: 0xA5 0xAF 0x59 0x84 0x7A 0x00 0x80 0xFF
+// Protocol is using AETR channel order, 1 byte per channel 00..80..FF including trim. Channels are in packet [3,4,5,6].
+// packet[0,1,2,7] values are constant in normal mode.
+// packet[0]=0xA5 -> normal mode
+// packet[1,2] ->ID
+// packet[7]=0xFF -> ???
+// Channel values are updated every 30ms which is quite slow, slower than PPM... 
+// Packets are sent every 1500µs on 2 different channels. 2 times on first channel, 2 times on second channel and restart. The channels are changing between the files 0x08, 0x58 and 0x18, 0x68.
+//
+// Bind is sending 3 bytes on channel 0x18: 0x1B 0x35 0xD0 every 22.7ms
+// packet[0]=0x1B -> bind mode
+// packet[1,2] ->ID
+// It listens for the model on channel 0x17 and recieves 0x1B 0x35 0xD0 when the plane accepts bind.
--- a/Multiprotocol/FrSkyX_Rx_cc2500.ino
+++ b/Multiprotocol/FrSkyX_Rx_cc2500.ino
@@ -0,0 +1,373 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if defined(FRSKYX_RX_CC2500_INO)
+
+#include "iface_cc2500.h" 
+
+ #define FRSKYX_FCC_LENGTH	(30+2)
+ #define FRSKYX_LBT_LENGTH	(33+2)
+
+ enum {
+	FRSKYX_RX_TUNE_START,
+	FRSKYX_RX_TUNE_LOW,
+	FRSKYX_RX_TUNE_HIGH,
+	FRSKYX_RX_BIND,
+	FRSKYX_RX_DATA,
+ };
+
+ static uint8_t frskyx_rx_chanskip;
+ static uint8_t frskyx_rx_disable_lna;
+ static uint8_t frskyx_rx_data_started;
+ static int8_t  frskyx_rx_finetune;
+
+static void __attribute__((unused)) frskyx_rx_strobe_rx()
+{
+	 CC2500_Strobe(CC2500_SIDLE);
+	 CC2500_Strobe(CC2500_SFRX);
+	 CC2500_Strobe(CC2500_SRX);
+}
+
+static void __attribute__((unused)) FrSkyX_Rx_initialise() {
+	CC2500_Reset();
+	
+	CC2500_WriteReg(CC2500_02_IOCFG0, 0x01);
+	CC2500_WriteReg(CC2500_18_MCSM0, 0x18);
+	CC2500_WriteReg(CC2500_07_PKTCTRL1, 0x04);
+	CC2500_WriteReg(CC2500_3E_PATABLE, 0xFF);
+	CC2500_WriteReg(CC2500_0C_FSCTRL0, 0);
+	CC2500_WriteReg(CC2500_0D_FREQ2, 0x5C);
+	CC2500_WriteReg(CC2500_13_MDMCFG1, 0x23);
+	CC2500_WriteReg(CC2500_14_MDMCFG0, 0x7A);
+	CC2500_WriteReg(CC2500_19_FOCCFG, 0x16);
+	CC2500_WriteReg(CC2500_1A_BSCFG, 0x6C);
+	CC2500_WriteReg(CC2500_1B_AGCCTRL2, 0x03);
+	CC2500_WriteReg(CC2500_1C_AGCCTRL1, 0x40);
+	CC2500_WriteReg(CC2500_1D_AGCCTRL0, 0x91);
+	CC2500_WriteReg(CC2500_21_FREND1, 0x56);
+	CC2500_WriteReg(CC2500_22_FREND0, 0x10);
+	CC2500_WriteReg(CC2500_23_FSCAL3, 0xA9);
+	CC2500_WriteReg(CC2500_24_FSCAL2, 0x0A);
+	CC2500_WriteReg(CC2500_25_FSCAL1, 0x00);
+	CC2500_WriteReg(CC2500_26_FSCAL0, 0x11);
+	CC2500_WriteReg(CC2500_29_FSTEST, 0x59);
+	CC2500_WriteReg(CC2500_2C_TEST2, 0x88);
+	CC2500_WriteReg(CC2500_2D_TEST1, 0x31);
+	CC2500_WriteReg(CC2500_2E_TEST0, 0x0B);
+	CC2500_WriteReg(CC2500_03_FIFOTHR, 0x07);
+	CC2500_WriteReg(CC2500_09_ADDR, 0x00);
+
+	switch (sub_protocol) {
+	case FRSKYX_FCC:
+		CC2500_WriteReg(CC2500_17_MCSM1, 0x0C);
+		CC2500_WriteReg(CC2500_0E_FREQ1, 0x76);
+		CC2500_WriteReg(CC2500_0F_FREQ0, 0x27);
+		CC2500_WriteReg(CC2500_06_PKTLEN, 0x1E);
+		CC2500_WriteReg(CC2500_08_PKTCTRL0, 0x01);
+		CC2500_WriteReg(CC2500_0B_FSCTRL1, 0x0A);
+		CC2500_WriteReg(CC2500_10_MDMCFG4, 0x7B);
+		CC2500_WriteReg(CC2500_11_MDMCFG3, 0x61);
+		CC2500_WriteReg(CC2500_12_MDMCFG2, 0x13);
+		CC2500_WriteReg(CC2500_15_DEVIATN, 0x51);
+		break;
+	case FRSKYX_LBT:
+		CC2500_WriteReg(CC2500_17_MCSM1, 0x0E);
+		CC2500_WriteReg(CC2500_0E_FREQ1, 0x80);
+		CC2500_WriteReg(CC2500_0F_FREQ0, 0x00);
+		CC2500_WriteReg(CC2500_06_PKTLEN, 0x23);
+		CC2500_WriteReg(CC2500_08_PKTCTRL0, 0x01);
+		CC2500_WriteReg(CC2500_0B_FSCTRL1, 0x08);
+		CC2500_WriteReg(CC2500_10_MDMCFG4, 0x7B);
+		CC2500_WriteReg(CC2500_11_MDMCFG3, 0xF8);
+		CC2500_WriteReg(CC2500_12_MDMCFG2, 0x03);
+		CC2500_WriteReg(CC2500_15_DEVIATN, 0x53);
+		break;
+	}
+
+	frskyx_rx_disable_lna = IS_POWER_FLAG_on;
+	CC2500_SetTxRxMode(frskyx_rx_disable_lna ? TXRX_OFF : RX_EN); // lna disable / enable
+
+	frskyx_rx_strobe_rx();
+	CC2500_WriteReg(CC2500_0A_CHANNR, 0);  // bind channel
+	delayMicroseconds(1000); // wait for RX to activate
+}
+
+static void __attribute__((unused)) frskyx_rx_set_channel(uint8_t channel)
+{
+	CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[channel]);
+	CC2500_WriteReg(CC2500_25_FSCAL1, calData[channel]);
+	frskyx_rx_strobe_rx();
+}
+
+static void __attribute__((unused)) frskyx_rx_calibrate()
+{
+	frskyx_rx_strobe_rx();
+	for (unsigned c = 0; c < 47; c++)
+	{
+		CC2500_Strobe(CC2500_SIDLE);
+		CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[c]);
+		CC2500_Strobe(CC2500_SCAL);
+		delayMicroseconds(900);
+		calData[c] = CC2500_ReadReg(CC2500_25_FSCAL1);
+	}
+}
+
+static uint8_t __attribute__((unused)) frskyx_rx_check_crc()
+{
+	uint8_t limit = packet_length - 4;
+	uint16_t lcrc = frskyX_crc_x(&packet[3], limit - 3); // computed crc
+	uint16_t rcrc = (packet[limit] << 8) | (packet[limit + 1] & 0xff); // received crc
+	return lcrc == rcrc;
+}
+
+static void __attribute__((unused)) frskyx_rx_build_telemetry_packet()
+{
+	static uint16_t frskyx_rx_rc_chan[16];
+	uint16_t pxx_channel[8];
+	uint32_t bits = 0;
+	uint8_t bitsavailable = 0;
+	uint8_t idx = 0;
+
+	// decode PXX channels
+	pxx_channel[0] = ((packet[10] << 8) & 0xF00) | packet[9];
+	pxx_channel[1] = ((packet[11] << 4) & 0xFF0) | (packet[10] >> 4);
+	pxx_channel[2] = ((packet[13] << 8) & 0xF00) | packet[12];
+	pxx_channel[3] = ((packet[14] << 4) & 0xFF0) | (packet[13] >> 4);
+	pxx_channel[4] = ((packet[16] << 8) & 0xF00) | packet[15];
+	pxx_channel[5] = ((packet[17] << 4) & 0xFF0) | (packet[16] >> 4);
+	pxx_channel[6] = ((packet[19] << 8) & 0xF00) | packet[18];
+	pxx_channel[7] = ((packet[20] << 4) & 0xFF0) | (packet[19] >> 4);
+	for (unsigned i = 0; i < 8; i++) {
+		uint8_t shifted = (pxx_channel[i] & 0x800)>0;
+		uint16_t channel_value = pxx_channel[i] & 0x7FF;
+		if (channel_value < 64)
+			frskyx_rx_rc_chan[shifted ? i + 8 : i] = 0;
+		else
+			frskyx_rx_rc_chan[shifted ? i + 8 : i] = min(((channel_value - 64) << 4) / 15, 2047);
+	}
+
+	// buid telemetry packet
+	pkt[idx++] = RX_LQI;
+	pkt[idx++] = RX_RSSI;
+	pkt[idx++] = 0;  // start channel
+	pkt[idx++] = 16; // number of channels in packet
+
+	// pack channels
+	for (int i = 0; i < 16; i++) {
+		bits |= frskyx_rx_rc_chan[i] << bitsavailable;
+		bitsavailable += 11;
+		while (bitsavailable >= 8) {
+			pkt[idx++] = bits & 0xff;
+			bits >>= 8;
+			bitsavailable -= 8;
+		}
+	}
+}
+
+uint16_t initFrSkyX_Rx()
+{
+	FrSkyX_Rx_initialise();
+	state = 0;
+	frskyx_rx_chanskip = 1;
+	hopping_frequency_no = 0;
+	frskyx_rx_data_started = 0;
+	frskyx_rx_finetune = 0;
+	telemetry_link = 0;
+	if (IS_BIND_IN_PROGRESS) {
+		phase = FRSKYX_RX_TUNE_START;
+	}
+	else {
+		uint16_t temp = FRSKYX_RX_EEPROM_OFFSET;
+		rx_tx_addr[0] = eeprom_read_byte((EE_ADDR)temp++);
+		rx_tx_addr[1] = eeprom_read_byte((EE_ADDR)temp++);
+		rx_tx_addr[2] = eeprom_read_byte((EE_ADDR)temp++);
+		frskyx_rx_finetune = eeprom_read_byte((EE_ADDR)temp++);
+		for(uint8_t ch = 0; ch < 47; ch++)
+			hopping_frequency[ch] = eeprom_read_byte((EE_ADDR)temp++);
+		frskyx_rx_calibrate();
+		CC2500_WriteReg(CC2500_18_MCSM0, 0x08); // FS_AUTOCAL = manual
+		CC2500_WriteReg(CC2500_09_ADDR, rx_tx_addr[0]); // set address
+		CC2500_WriteReg(CC2500_07_PKTCTRL1, 0x05); // check address
+		if (option == 0)
+			CC2500_WriteReg(CC2500_0C_FSCTRL0, frskyx_rx_finetune);
+		else
+			CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
+		frskyx_rx_set_channel(hopping_frequency_no);
+		phase = FRSKYX_RX_DATA;
+	}
+	packet_length = (sub_protocol == FRSKYX_LBT) ? FRSKYX_LBT_LENGTH : FRSKYX_FCC_LENGTH;
+	return 1000;
+}
+
+uint16_t FrSkyX_Rx_callback()
+{
+	static uint32_t pps_timer=0;
+	static uint8_t pps_counter=0;
+	static int8_t read_retry = 0;
+	static int8_t tune_low, tune_high;
+	uint8_t len, ch;
+
+	if ((prev_option != option) && (phase >= FRSKYX_RX_DATA)) {
+		if (option == 0)
+			CC2500_WriteReg(CC2500_0C_FSCTRL0, frskyx_rx_finetune);
+		else
+			CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
+		prev_option = option;
+	}
+
+	if (frskyx_rx_disable_lna != IS_POWER_FLAG_on) {
+		frskyx_rx_disable_lna = IS_POWER_FLAG_on;
+		CC2500_SetTxRxMode(frskyx_rx_disable_lna ? TXRX_OFF : RX_EN);
+	}
+
+	len = CC2500_ReadReg(CC2500_3B_RXBYTES | CC2500_READ_BURST) & 0x7F;
+
+	switch(phase) {
+	case FRSKYX_RX_TUNE_START:
+		if (len >= packet_length) {
+			CC2500_ReadData(packet, packet_length);
+			if(packet[1] == 0x03 && packet[2] == 0x01) {
+				if(frskyx_rx_check_crc()) {
+					frskyx_rx_finetune = -127;
+					CC2500_WriteReg(CC2500_0C_FSCTRL0, frskyx_rx_finetune);
+					phase = FRSKYX_RX_TUNE_LOW;
+					frskyx_rx_strobe_rx();
+					return 1000;
+				}
+			}
+		}
+		frskyx_rx_finetune += 10;
+		CC2500_WriteReg(CC2500_0C_FSCTRL0, frskyx_rx_finetune);
+		frskyx_rx_strobe_rx();
+		return 18000;
+
+	case FRSKYX_RX_TUNE_LOW:
+		if (len >= packet_length) {
+			CC2500_ReadData(packet, packet_length);
+			if (frskyx_rx_check_crc()) {
+				tune_low = frskyx_rx_finetune;
+				frskyx_rx_finetune = 127;
+				CC2500_WriteReg(CC2500_0C_FSCTRL0, frskyx_rx_finetune);
+				phase = FRSKYX_RX_TUNE_HIGH;
+				frskyx_rx_strobe_rx();
+				return 1000;
+			}
+		}
+		frskyx_rx_finetune += 1;
+		CC2500_WriteReg(CC2500_0C_FSCTRL0, frskyx_rx_finetune);
+		frskyx_rx_strobe_rx();
+		return 18000;
+
+	case FRSKYX_RX_TUNE_HIGH:
+		if (len >= packet_length) {
+			CC2500_ReadData(packet, packet_length);
+			if (frskyx_rx_check_crc()) {
+				tune_high = frskyx_rx_finetune;
+				frskyx_rx_finetune = (tune_low + tune_high) / 2;
+				CC2500_WriteReg(CC2500_0C_FSCTRL0, (int8_t)frskyx_rx_finetune);
+				if(tune_low < tune_high)
+					phase = FRSKYX_RX_BIND;
+				else
+					phase = FRSKYX_RX_TUNE_START;
+				frskyx_rx_strobe_rx();
+				return 1000;
+			}
+		}
+		frskyx_rx_finetune -= 1;
+		CC2500_WriteReg(CC2500_0C_FSCTRL0, frskyx_rx_finetune);
+		frskyx_rx_strobe_rx();
+		return 18000;
+
+	case FRSKYX_RX_BIND:
+		if(len >= packet_length) {
+			CC2500_ReadData(packet, packet_length);
+			if (frskyx_rx_check_crc()) {
+				if (packet[5] <= 0x2D) {
+					for (ch = 0; ch < 5; ch++)
+						hopping_frequency[packet[5]+ch] = packet[6+ch];
+					state |= 1 << (packet[5] / 5);
+				}
+			}
+			if (state == 0x3ff) {
+				debugln("bind complete");
+				frskyx_rx_calibrate();
+				rx_tx_addr[0] = packet[3];	// TXID
+				rx_tx_addr[1] = packet[4];	// TXID
+				rx_tx_addr[2] = packet[12]; // RX #
+				CC2500_WriteReg(CC2500_18_MCSM0, 0x08); // FS_AUTOCAL = manual
+				CC2500_WriteReg(CC2500_09_ADDR, rx_tx_addr[0]); // set address
+				CC2500_WriteReg(CC2500_07_PKTCTRL1, 0x05); // check address
+				phase = FRSKYX_RX_DATA;
+				frskyx_rx_set_channel(hopping_frequency_no);
+				// store txid and channel list
+				uint16_t temp = FRSKYX_RX_EEPROM_OFFSET;
+				eeprom_write_byte((EE_ADDR)temp++, rx_tx_addr[0]);
+				eeprom_write_byte((EE_ADDR)temp++, rx_tx_addr[1]);
+				eeprom_write_byte((EE_ADDR)temp++, rx_tx_addr[2]);
+				eeprom_write_byte((EE_ADDR)temp++, frskyx_rx_finetune);
+				for (ch = 0; ch < 47; ch++)
+					eeprom_write_byte((EE_ADDR)temp++, hopping_frequency[ch]);
+				BIND_DONE;
+			}
+			frskyx_rx_strobe_rx();
+		}
+		return 1000;
+
+	case FRSKYX_RX_DATA:
+		if (len >= packet_length) {
+			CC2500_ReadData(packet, packet_length);
+			if (packet[1] == rx_tx_addr[0] && packet[2] == rx_tx_addr[1] && packet[6] == rx_tx_addr[2] && frskyx_rx_check_crc()) {
+				RX_RSSI = packet[packet_length-2];
+				if(RX_RSSI >= 128)
+					RX_RSSI -= 128;
+				else
+					RX_RSSI += 128;
+				// hop to next channel
+				frskyx_rx_chanskip = ((packet[4] & 0xC0) >> 6) | ((packet[5] & 0x3F) << 2);
+				hopping_frequency_no = (hopping_frequency_no + frskyx_rx_chanskip) % 47;
+				frskyx_rx_set_channel(hopping_frequency_no);
+				if(packet[7] == 0 && telemetry_link == 0) { // standard packet, send channels to TX
+						frskyx_rx_build_telemetry_packet();
+						telemetry_link = 1;
+				}
+				frskyx_rx_data_started = 1;
+				read_retry = 0;
+				pps_counter++;
+			}
+		}
+		
+		// packets per second
+		if (millis() - pps_timer >= 1000) {
+			pps_timer = millis();
+			debugln("%ld pps", pps_counter);
+			RX_LQI = pps_counter;
+			pps_counter = 0;
+		}
+
+		// skip channel if no packet received in time
+		if (read_retry++ >= 9) {
+			hopping_frequency_no = (hopping_frequency_no + frskyx_rx_chanskip) % 47;
+			frskyx_rx_set_channel(hopping_frequency_no);
+			if(frskyx_rx_data_started)
+				read_retry = 0;
+			else
+				read_retry = -50; // retry longer until first packet is catched
+		}
+		break;
+	}
+	return 1000;
+}
+
+#endif
--- a/Multiprotocol/FrSkyX_cc2500.ino
+++ b/Multiprotocol/FrSkyX_cc2500.ino
@@ -55,25 +55,6 @@ static void __attribute__((unused)) frskyX_initialize_data(uint8_t adr)
 	CC2500_WriteReg(CC2500_07_PKTCTRL1,0x05);
 }

-//**CRC**
-const uint16_t PROGMEM frskyX_CRC_Short[]={
-	0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF,
-	0x8C48, 0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7 };
-static uint16_t __attribute__((unused)) frskyX_CRCTable(uint8_t val)
-{
-	uint16_t word ;
-	word = pgm_read_word(&frskyX_CRC_Short[val&0x0F]) ;
-	val /= 16 ;
-	return word ^ (0x1081 * val) ;
-}
-static uint16_t __attribute__((unused)) frskyX_crc_x(uint8_t *data, uint8_t len)
-{
-	uint16_t crc = 0;
-	for(uint8_t i=0; i < len; i++)
-		crc = (crc<<8) ^ frskyX_CRCTable((uint8_t)(crc>>8) ^ *data++);
-	return crc;
-}
-
 static void __attribute__((unused)) frskyX_build_bind_packet()
 {
 	packet[0] = (sub_protocol & 2 ) ? 0x20 : 0x1D ; // LBT or FCC
--- a/Multiprotocol/GD00X_nrf24l01.ino
+++ b/Multiprotocol/GD00X_nrf24l01.ino
@@ -16,18 +16,20 @@ Multiprotocol is distributed in the hope that it will be useful,

 #if defined(GD00X_NRF24L01_INO)

-#include "iface_nrf24l01.h"
+#include "iface_xn297l.h"

 //#define FORCE_GD00X_ORIGINAL_ID

 #define GD00X_INITIAL_WAIT    500
 #define GD00X_PACKET_PERIOD   3500
 #define GD00X_RF_BIND_CHANNEL 2
+#define GD00X_RF_NUM_CHANNELS 4
 #define GD00X_PAYLOAD_SIZE    15
 #define GD00X_BIND_COUNT	  857	//3sec

 #define GD00X_V2_BIND_PACKET_PERIOD	5110
 #define GD00X_V2_RF_BIND_CHANNEL	0x43
+#define GD00X_V2_RF_NUM_CHANNELS	2
 #define GD00X_V2_PAYLOAD_SIZE		6

 // flags going to packet[11]
@@ -55,7 +57,7 @@ static void __attribute__((unused)) GD00X_send_packet()
 		channel=convert_channel_ppm(CH5);		// TRIM
 		packet[9 ] = channel;
 		packet[10] = channel>>8;
-		packet[11] = GD00X_FLAG_DR				// Force high rate
+		packet[11] = GET_FLAG(!CH7_SW, GD00X_FLAG_DR)
 				   | GET_FLAG(CH6_SW, GD00X_FLAG_LIGHT);
 		packet[12] = 0x00;
 		packet[13] = 0x00;
@@ -70,23 +72,14 @@ static void __attribute__((unused)) GD00X_send_packet()
 		{
 			packet[0]=convert_channel_16b_limit(THROTTLE,0,100);	// 0..100

-			// Deadband is needed on aileron
-			uint16_t aileron=limit_channel_100(AILERON);			// 204<->1844
-			#define GD00X_V2_DB_MIN 1024-40
-			#define GD00X_V2_DB_MAX 1024+40
-			if(aileron>GD00X_V2_DB_MIN && aileron<GD00X_V2_DB_MAX)
-				packet[1]=0x20;	// Send the channel centered
-			else // Ail:  0x3F..0x20..0x00
-				if(aileron>GD00X_V2_DB_MAX)
-					packet[1]=0x1F-((aileron-GD00X_V2_DB_MAX)*(0x20)/(CHANNEL_MAX_100+1-GD00X_V2_DB_MAX));	// 1F..00
-				else
-					packet[1]=0x3F-((aileron-CHANNEL_MIN_100)*(0x1F)/(GD00X_V2_DB_MIN-CHANNEL_MIN_100));	// 3F..21
-
+			// Deadband is needed on aileron, 40 gives +-6%
+			packet[1]=convert_channel_8b_limit_deadband(AILERON,0x3F,0x20,0x00,40);	// Aileron: 3F..20..00
 			// Trims must be in a seperate channel for this model
 			packet[2]=0x3F-(convert_channel_8b(CH5)>>2);			// Trim: 0x3F..0x20..0x00

 			uint8_t seq=((packet_count*3)/7)%5;
-			packet[4]=seq | GD00X_V2_FLAG_DR;
+			packet[4]=seq
+					| GET_FLAG(!CH7_SW, GD00X_V2_FLAG_DR);

 			if(CH6_SW!=prev_CH6)
 			{ // LED switch is temporary
@@ -118,42 +111,31 @@ static void __attribute__((unused)) GD00X_send_packet()
 		packet[5]='D';
 	}

-	// Power on, TX mode, CRC enabled
-	XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
 	if(IS_BIND_DONE)
 	{
-		NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[hopping_frequency_no]);
+		XN297L_Hopping(hopping_frequency_no);
 		if(sub_protocol==GD_V1)
 		{
 			hopping_frequency_no++;
-			hopping_frequency_no &= 3;			// 4 RF channels
+			hopping_frequency_no &= GD00X_RF_NUM_CHANNELS-1;	// 4 RF channels
 		}
 	}

-	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
-	NRF24L01_FlushTx();
-	XN297_WritePayload(packet, packet_length);
+	XN297L_WritePayload(packet, packet_length);

-	NRF24L01_SetPower();	// Set tx_power
+	XN297L_SetPower();		// Set tx_power
+	XN297L_SetFreqOffset();	// Set frequency offset
 }

 static void __attribute__((unused)) GD00X_init()
 {
-	NRF24L01_Initialize();
-	NRF24L01_SetTxRxMode(TX_EN);
+	XN297L_Init();
 	if(sub_protocol==GD_V1)
-		XN297_SetTXAddr((uint8_t*)"\xcc\xcc\xcc\xcc\xcc", 5);
+		XN297L_SetTXAddr((uint8_t*)"\xcc\xcc\xcc\xcc\xcc", 5);
 	else
-		XN297_SetTXAddr((uint8_t*)"GDKNx", 5);
-
-	NRF24L01_WriteReg(NRF24L01_05_RF_CH, sub_protocol==GD_V1?GD00X_RF_BIND_CHANNEL:GD00X_V2_RF_BIND_CHANNEL);	// Bind channel
-	NRF24L01_FlushTx();
-	NRF24L01_FlushRx();
-	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);	// Clear data ready, data sent, and retransmit
-	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);		// No Auto Acknowldgement on all data pipes
-	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);	// Enable data pipe 0 only
-	NRF24L01_SetBitrate(NRF24L01_BR_250K);			// 250Kbps
-	NRF24L01_SetPower();
+		XN297L_SetTXAddr((uint8_t*)"GDKNx", 5);
+	XN297L_HoppingCalib(sub_protocol==GD_V1?GD00X_RF_NUM_CHANNELS:GD00X_V2_RF_NUM_CHANNELS);	// Calibrate all channels
+	XN297L_RFChannel(sub_protocol==GD_V1?GD00X_RF_BIND_CHANNEL:GD00X_V2_RF_BIND_CHANNEL);		// Set bind channel
 }

 static void __attribute__((unused)) GD00X_initialize_txid()
@@ -161,14 +143,14 @@ static void __attribute__((unused)) GD00X_initialize_txid()
 	if(sub_protocol==GD_V1)
 	{
 		uint8_t start=76+(rx_tx_addr[0]&0x03);
-		for(uint8_t i=0; i<4;i++)
+		for(uint8_t i=0; i<GD00X_RF_NUM_CHANNELS;i++)
 			hopping_frequency[i]=start-(i<<1);
 		#ifdef FORCE_GD00X_ORIGINAL_ID
 			rx_tx_addr[0]=0x1F;					// or 0xA5 or 0x26
 			rx_tx_addr[1]=0x39;					// or 0x37 or 0x35
 			rx_tx_addr[2]=0x12;					// Constant on 3 TXs
 			rx_tx_addr[3]=0x13;					// Constant on 3 TXs
-			for(uint8_t i=0; i<4;i++)
+			for(uint8_t i=0; i<GD00X_RF_NUM_CHANNELS;i++)
 				hopping_frequency[i]=79-(i<<1);	// or 77 or 78
 		#endif
 	}
--- a/Multiprotocol/GW008_nrf24l01.ino
+++ b/Multiprotocol/GW008_nrf24l01.ino
@@ -47,7 +47,7 @@ static void __attribute__((unused)) GW008_send_packet(uint8_t bind)
 	}
 	else
 	{
-		packet[1] = 0x01 | GET_FLAG(CH5, 0x40); // flip
+		packet[1] = 0x01 | GET_FLAG(CH5_SW, 0x40); // flip
 		packet[2] = convert_channel_16b_limit(AILERON , 200, 0); // aileron
 		packet[3] = convert_channel_16b_limit(ELEVATOR, 0, 200); // elevator
 		packet[4] = convert_channel_16b_limit(RUDDER  , 200, 0); // rudder
@@ -70,7 +70,7 @@ static void __attribute__((unused)) GW008_send_packet(uint8_t bind)

 	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
 	NRF24L01_FlushTx();
-	XN297_WriteEnhancedPayload(packet, GW008_PAYLOAD_SIZE, 0, 0x3c7d);
+	XN297_WriteEnhancedPayload(packet, GW008_PAYLOAD_SIZE, 0);

 	NRF24L01_SetPower();	// Set tx_power
 }
@@ -125,7 +125,7 @@ uint16_t GW008_callback()
 				NRF24L01_SetTxRxMode(TX_EN);
 				GW008_send_packet(1);
 				phase = GW008_BIND2;
-				return 300;
+				return 850; // minimum value 750 for STM32
 			}
 			break;
 		case GW008_BIND2:
--- a/Multiprotocol/Hitec_cc2500.ino
+++ b/Multiprotocol/Hitec_cc2500.ino
@@ -324,12 +324,20 @@ uint16_t ReadHITEC()
 							//		0C,1C,A1,2B,00,17,00,00,00,42,44,17,00,48,8D	-> 42=>temperature3 0x42-0x28=26°C,44=>temperature4 0x44-0x28=28°C
 							//		0C,1C,A1,2B,00,18,00,00,00,00,00,18,00,50,92
 							debug(",telem,%02x",pkt[14]&0x7F);
+							#if defined(HITEC_FW_TELEMETRY) || defined(HITEC_HUB_TELEMETRY)
+								TX_RSSI = pkt[13];
+								if(TX_RSSI >=128)
+									TX_RSSI -= 128;
+								else
+									TX_RSSI += 128;
+								TX_LQI = pkt[14]&0x7F;
+							#endif
 							#if defined(HITEC_FW_TELEMETRY)
 								if(sub_protocol==OPT_FW)
 								{
 									// 8 bytes telemetry packets => see at the end of this file how to fully decode it
-									pkt[0]=pkt[13];				// TX RSSI
-									pkt[1]=pkt[14]&0x7F;		// TX LQI
+									pkt[0]=TX_RSSI;				// TX RSSI
+									pkt[1]=TX_LQI;				// TX LQI
 									uint8_t offset=pkt[5]==0?1:0;
 									for(uint8_t i=5;i < 11; i++)
 										pkt[i-3]=pkt[i+offset];	// frame number followed by 5 bytes of data
@@ -351,12 +359,6 @@ uint16_t ReadHITEC()
 											v_lipo2 =  (pkt[6])<<5 | (pkt[7])>>3;	// calculation in float is volt=(pkt[6]<<8+pkt[7])/10
 											break;
 									}
-									TX_RSSI = pkt[13];
-									if(TX_RSSI >=128)
-										TX_RSSI -= 128;
-									else
-										TX_RSSI += 128;
-									TX_LQI = pkt[14]&0x7F;
 									telemetry_link=1;			// telemetry hub available
 								}
 							#endif
@@ -403,7 +405,7 @@ packet[1] = TX LQI value
 packet[2] = frame number
 packet[3-7] telemetry data

-The frame number takes the following values: 0x00, 0x11, 0x12, ..., 0x18. The frames can be present or not, they also do not have to follow each others.
+The frame number takes the following values: 0x00, 0x11, 0x12, ..., 0x1C. The frames can be present or not, they also do not have to follow each others.
 Here is a description of the telemetry data for each frame number:
 - frame 0x00
 data byte 0 -> 0x00				unknown
@@ -414,9 +416,9 @@ data byte 4 -> RX Batt Volt_L => RX Batt=(Volt_H*256+Volt_L)/28
 - frame 0x11
 data byte 0 -> 0xAF				start of frame
 data byte 1 -> 0x00				unknown
-data byte 2 -> 0x2D				frame type but constant here
-data byte 3 -> Volt1_H
-data byte 4 -> Volt1_L			RX Batt=(Volt1_H*256+Volt1_L)/28 V
+data byte 2 -> 0x2D				station type 0x2D=standard station nitro or electric, 0xAC=advanced station
+data byte 3 -> RX Batt Volt_H
+data byte 4 -> RX Batt Volt_L => RX Batt=(Volt_H*256+Volt_L)/28
 - frame 0x12
 data byte 0 -> Lat_sec_H		GPS : latitude second
 data byte 1 -> Lat_sec_L		signed int : 1/100 of second
@@ -431,9 +433,9 @@ data byte 3 -> 					signed int : +=Est, - = west
 data byte 4 -> Temp2			Temperature2=Temp2-40°C
 - frame 0x14
 data byte 0 -> Speed_H
-data byte 1 -> Speed_L			Speed=Speed_H*256+Speed_L km/h
+data byte 1 -> Speed_L			GPS Speed=Speed_H*256+Speed_L km/h
 data byte 2 -> Alti_sea_H
-data byte 3 -> Alti_sea_L		Altitude sea=Alti_sea_H*256+Alti_sea_L m
+data byte 3 -> Alti_sea_L		GPS Altitude=Alti_sea_H*256+Alti_sea_L m
 data byte 4 -> Temp1			Temperature1=Temp1-40°C
 - frame 0x15
 data byte 0 -> FUEL
@@ -448,15 +450,30 @@ data byte 2 -> Date_day
 data byte 3 -> Time_hour		GPS Time
 data byte 4 -> Time_min
 - frame 0x17
-data byte 0 -> 0x00	COURSEH
-data byte 1 -> 0x00	COURSEL		GPS Course = COURSEH*256+COURSEL
-data byte 2 -> 0x00				GPS count
+data byte 0 -> COURSEH
+data byte 1 -> COURSEL			GPS heading = COURSEH*256+COURSEL in degrees
+data byte 2 -> Count			GPS satellites
 data byte 3 -> Temp3			Temperature3=Temp2-40°C
 data byte 4 -> Temp4			Temperature4=Temp3-40°C
 - frame 0x18
-data byte 1 -> Volt2_H
-data byte 2 -> Volt2_L			Volt2=(Volt2_H*256+Volt2_L)/10 V
-data byte 3 -> AMP1_L
-data byte 4 -> AMP1_H			Amp=(AMP1_H*256+AMP1_L -180)/14 in signed A
+data byte 0 -> Volt_L			Volt=(Volt_H*256+Volt_L)/10 V
+data byte 1 -> Volt_H
+data byte 2 -> AMP_L
+data byte 3 -> AMP_H			Amp=(AMP1_*256+AMP_L -180)/14 in signed A
+- frame 0x19					Servo sensor
+data byte 0 -> AMP_Servo1		Amp=AMP_Servo1/10 in A
+data byte 1 -> AMP_Servo2		Amp=AMP_Servo2/10 in A
+data byte 2 -> AMP_Servo3		Amp=AMP_Servo3/10 in A
+data byte 3 -> AMP_Servo4		Amp=AMP_Servo4/10 in A
+- frame 0x1A
+data byte 2 -> ASpeed_H			Air speed=ASpeed_H*256+ASpeed_L km/h
+data byte 3 -> ASpeed_L
+- frame 0x1B					Variometer sensor
+data byte 0 -> Alti1H
+data byte 1 -> Alti1L			Altitude unfiltered
+data byte 2 -> Alti2H
+data byte 3 -> Alti2L			Altitude filtered
+- frame 0x1C					Unknown
+- frame 0x22					Unknown
 */
 #endif
--- a/Multiprotocol/KF606_nrf24l01.ino
+++ b/Multiprotocol/KF606_nrf24l01.ino
@@ -0,0 +1,109 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+// Compatible with KF606 plane.
+
+#if defined(KF606_NRF24L01_INO)
+
+#include "iface_xn297l.h"
+
+//#define FORCE_KF606_ORIGINAL_ID
+
+#define KF606_INITIAL_WAIT    500
+#define KF606_PACKET_PERIOD   3000
+#define KF606_RF_BIND_CHANNEL 7
+#define KF606_PAYLOAD_SIZE    4
+#define KF606_BIND_COUNT	  857	//3sec
+#define KF606_RF_NUM_CHANNELS 2
+
+static void __attribute__((unused)) KF606_send_packet()
+{
+	if(IS_BIND_IN_PROGRESS)
+	{
+		packet[0] = 0xAA;
+		memcpy(&packet[1],rx_tx_addr,3);
+	}
+	else
+	{
+		packet[0]= 0x55;
+		packet[1]= convert_channel_8b(THROTTLE);					// 0..255
+		// Deadband is needed on aileron, 40 gives +-6%
+		packet[2]=convert_channel_8b_limit_deadband(AILERON,0x20,0x80,0xE0,40);	// Aileron: Max values:20..80..E0, Low rates:50..80..AF, High rates:3E..80..C1
+		// Aileron trim must be on a separated channel C1..D0..DF
+		packet[3]= convert_channel_16b_limit(CH5,0xC1,0xDF);
+	}
+	if(IS_BIND_DONE)
+	{
+		XN297L_Hopping(hopping_frequency_no);
+		hopping_frequency_no ^= 1;			// 2 RF channels
+	}
+
+	XN297L_WritePayload(packet, KF606_PAYLOAD_SIZE);
+
+	XN297L_SetPower();		// Set tx_power
+	XN297L_SetFreqOffset();	// Set frequency offset
+}
+
+static void __attribute__((unused)) KF606_initialize_txid()
+{
+	rx_tx_addr[0]=rx_tx_addr[3];	// Use RX_num;
+	hopping_frequency[0]=(rx_tx_addr[0]&0x3F)+9;
+	hopping_frequency[1]=hopping_frequency[0]+3;
+	#ifdef FORCE_KF606_ORIGINAL_ID
+		//TX1
+		rx_tx_addr[0]=0x57;
+		rx_tx_addr[1]=0x02;
+		rx_tx_addr[2]=0x00;
+		hopping_frequency[0]=0x20;
+		hopping_frequency[0]=0x23;
+		//TX2
+		rx_tx_addr[0]=0x25;
+		rx_tx_addr[1]=0x04;
+		rx_tx_addr[2]=0x00;
+		hopping_frequency[0]=0x2E;
+		hopping_frequency[0]=0x31;
+	#endif
+}
+
+static void __attribute__((unused)) KF606_init()
+{
+	XN297L_Init();
+	XN297L_SetTXAddr((uint8_t*)"\xe7\xe7\xe7\xe7\xe7", 5);
+	XN297L_HoppingCalib(KF606_RF_NUM_CHANNELS);	// Calibrate all channels
+	XN297L_RFChannel(KF606_RF_BIND_CHANNEL);	// Set bind channel
+}
+
+uint16_t KF606_callback()
+{
+	if(IS_BIND_IN_PROGRESS)
+		if(--bind_counter==0)
+		{
+			BIND_DONE;
+			XN297_SetTXAddr(rx_tx_addr, 3);
+		}
+	KF606_send_packet();
+	return KF606_PACKET_PERIOD;
+}
+
+uint16_t initKF606()
+{
+	BIND_IN_PROGRESS;	// autobind protocol
+	KF606_initialize_txid();
+	KF606_init();
+	hopping_frequency_no = 0;
+	bind_counter=KF606_BIND_COUNT;
+	return KF606_INITIAL_WAIT;
+}
+
+#endif
--- a/Multiprotocol/MJXQ_nrf24l01.ino
+++ b/Multiprotocol/MJXQ_nrf24l01.ino
@@ -18,6 +18,7 @@
 #if defined(MJXQ_NRF24L01_INO)

 #include "iface_nrf24l01.h"
+#include "iface_xn297l.h"

 #define MJXQ_BIND_COUNT		150
 #define MJXQ_PACKET_PERIOD	4000  // Timeout for callback in uSec
@@ -78,6 +79,7 @@ const uint8_t PROGMEM E010_map_rfchan[][2] = {
 #define MJXQ_PAN_UP			0x04
 #define MJXQ_TILT_DOWN		0x20
 #define MJXQ_TILT_UP		0x10
+
 static uint8_t __attribute__((unused)) MJXQ_pan_tilt_value()
 {
 // CH12_SW	PAN			// H26D
@@ -190,25 +192,35 @@ static void __attribute__((unused)) MJXQ_send_packet(uint8_t bind)
 	uint8_t sum = packet[0];
 	for (uint8_t i=1; i < MJXQ_PACKET_SIZE-1; i++) sum += packet[i];
 	packet[15] = sum;
-
-	NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[hopping_frequency_no++ / 2]);
-	hopping_frequency_no %= 2 * MJXQ_RF_NUM_CHANNELS;	// channels repeated
-
-	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
-	NRF24L01_FlushTx();
-
-	// Power on, TX mode, 2byte CRC and send packet
-	if (sub_protocol == H26D || sub_protocol == H26WH)
+	hopping_frequency_no++;
+	if (sub_protocol == E010 || sub_protocol == PHOENIX)
 	{
-		NRF24L01_SetTxRxMode(TX_EN);
-		NRF24L01_WritePayload(packet, MJXQ_PACKET_SIZE);
+		XN297L_Hopping(hopping_frequency_no / 2);
+		XN297L_SetFreqOffset();
+		XN297L_SetPower();
+		XN297L_WritePayload(packet, MJXQ_PACKET_SIZE);
 	}
 	else
 	{
-		XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
-		XN297_WritePayload(packet, MJXQ_PACKET_SIZE);
+		NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[hopping_frequency_no / 2]);
+
+		NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
+		NRF24L01_FlushTx();
+
+		// Power on, TX mode, 2byte CRC and send packet
+		if (sub_protocol == H26D || sub_protocol == H26WH)
+		{
+			NRF24L01_SetTxRxMode(TX_EN);
+			NRF24L01_WritePayload(packet, MJXQ_PACKET_SIZE);
+		}
+		else
+		{
+			XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
+			XN297_WritePayload(packet, MJXQ_PACKET_SIZE);
+		}
+		NRF24L01_SetPower();
 	}
-	NRF24L01_SetPower();
+	hopping_frequency_no %= 2 * MJXQ_RF_NUM_CHANNELS;	// channels repeated
 }

 static void __attribute__((unused)) MJXQ_init()
@@ -225,30 +237,35 @@ static void __attribute__((unused)) MJXQ_init()
 			memcpy(hopping_frequency, "\x0a\x35\x42\x3d", MJXQ_RF_NUM_CHANNELS);
 			memcpy(addr, "\x6d\x6a\x73\x73\x73", MJXQ_ADDRESS_LENGTH);
 		}
-	
-	NRF24L01_Initialize();
-	NRF24L01_SetTxRxMode(TX_EN);
-
-	if (sub_protocol == H26D || sub_protocol == H26WH)
+	if (sub_protocol == E010 || sub_protocol == PHOENIX)
 	{
-		NRF24L01_WriteReg(NRF24L01_03_SETUP_AW,		0x03);		// 5-byte RX/TX address
-		NRF24L01_WriteRegisterMulti(NRF24L01_10_TX_ADDR, addr, MJXQ_ADDRESS_LENGTH);
+		XN297L_Init();
+		XN297L_SetTXAddr(addr, sizeof(addr));
+		XN297L_HoppingCalib(MJXQ_RF_NUM_CHANNELS);
 	}
 	else
-		XN297_SetTXAddr(addr, MJXQ_ADDRESS_LENGTH);
+	{
+		NRF24L01_Initialize();
+		NRF24L01_SetTxRxMode(TX_EN);

-	NRF24L01_FlushTx();
-	NRF24L01_FlushRx();
-	NRF24L01_WriteReg(NRF24L01_07_STATUS,		0x70);		// Clear data ready, data sent, and retransmit
-	NRF24L01_WriteReg(NRF24L01_01_EN_AA,		0x00);		// No Auto Acknowledgment on all data pipes
-	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR,	0x01);		// Enable data pipe 0 only
-	NRF24L01_WriteReg(NRF24L01_04_SETUP_RETR,	0x00);		// no retransmits
-	NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0,		MJXQ_PACKET_SIZE);
-	if (sub_protocol == E010 || sub_protocol == PHOENIX)
-		NRF24L01_SetBitrate(NRF24L01_BR_250K);				// 250K
-	else
-		NRF24L01_SetBitrate(NRF24L01_BR_1M);				// 1Mbps
-	NRF24L01_SetPower();
+		if (sub_protocol == H26D || sub_protocol == H26WH)
+		{
+			NRF24L01_WriteReg(NRF24L01_03_SETUP_AW,		0x03);		// 5-byte RX/TX address
+			NRF24L01_WriteRegisterMulti(NRF24L01_10_TX_ADDR, addr, MJXQ_ADDRESS_LENGTH);
+		}
+		else
+			XN297_SetTXAddr(addr, MJXQ_ADDRESS_LENGTH);
+
+		NRF24L01_FlushTx();
+		NRF24L01_FlushRx();
+		NRF24L01_WriteReg(NRF24L01_07_STATUS,		0x70);		// Clear data ready, data sent, and retransmit
+		NRF24L01_WriteReg(NRF24L01_01_EN_AA,		0x00);		// No Auto Acknowledgment on all data pipes
+		NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR,	0x01);		// Enable data pipe 0 only
+		NRF24L01_WriteReg(NRF24L01_04_SETUP_RETR,	0x00);		// no retransmits
+		NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0,		MJXQ_PACKET_SIZE);
+		NRF24L01_SetBitrate(NRF24L01_BR_1M);					// 1Mbps
+		NRF24L01_SetPower();
+	}
 }

 static void __attribute__((unused)) MJXQ_init2()
@@ -268,6 +285,7 @@ static void __attribute__((unused)) MJXQ_init2()
 				hopping_frequency[i]=pgm_read_byte_near( &E010_map_rfchan[rx_tx_addr[3]&0x0F][i] );
 				hopping_frequency[i+2]=hopping_frequency[i]+0x10;
 			}
+			XN297L_HoppingCalib(MJXQ_RF_NUM_CHANNELS);
 			break;
 		case WLH08:
 			// do nothing
--- a/Multiprotocol/Multi.txt
+++ b/Multiprotocol/Multi.txt
@@ -4,14 +4,14 @@
 4,Hisky,Hisky,HK310
 5,V2x2,V2x2,JXD506
 6,DSM,DSM2-22,DSM2-11,DSMX-22,DSMX-11,AUTO
-7,Devo
+7,Devo,8CH,10CH,12CH,6CH,7CH
 8,YD717,YD717,SKYWLKR,SYMAX4,XINXUN,NIHUI
 9,KN,WLTOYS,FEILUN
 10,SymaX,SYMAX,SYMAX5C
 11,SLT,SLT_V1,SLT_V2,Q100,Q200,MR100
 12,CX10,GREEN,BLUE,DM007,---,J3015_1,J3015_2,MK33041
 13,CG023,CG023,YD829
-14,Bayang,Bayang,H8S3D,X16_AH,IRDRONE
+14,Bayang,Bayang,H8S3D,X16_AH,IRDRONE,DHD_D4
 15,FrskyX,CH_16,CH_8,EU_16,EU_8
 16,ESky
 17,MT99xx,MT,H7,YZ,LS,FY805
@@ -40,9 +40,17 @@
 40,WFLY
 41,BUGS
 42,BUGSMINI,BUGSMINI,BUGS3H
-43,Traxxas
+43,Traxxas,RX6519
 44,NCC1701
 45,E01X,E012,E015,E016H
 46,V911S
-47,GD00X,V1,V2
-63,Test
+47,GD00X,GD_V1,GD_V2
+48,V761
+49,KF606
+50,Redpine,Fast,Slow
+51,Potensic,A20
+52,ZSX,280
+53,Flyzone,FZ-410
+54,Scanner
+55,FrskyX_RX,FCC,EU_LBT
+63,XN_DUMP,250K,1M,2M
--- a/Multiprotocol/Multiprotocol.h
+++ b/Multiprotocol/Multiprotocol.h
@@ -19,7 +19,7 @@
 #define VERSION_MAJOR		1
 #define VERSION_MINOR		2
 #define VERSION_REVISION	1
-#define VERSION_PATCH_LEVEL	39
+#define VERSION_PATCH_LEVEL	84

 //******************
 // Protocols
@@ -74,7 +74,15 @@ enum PROTOCOLS
 	PROTO_E01X		= 45,	// =>NRF24L01
 	PROTO_V911S		= 46,	// =>NRF24L01
 	PROTO_GD00X		= 47,	// =>NRF24L01
-	PROTO_TEST		= 63,	// =>NRF24L01
+	PROTO_V761		= 48,	// =>NRF24L01
+	PROTO_KF606		= 49,	// =>NRF24L01
+	PROTO_REDPINE	= 50,	// =>CC2500
+	PROTO_POTENSIC	= 51,	// =>NRF24L01
+	PROTO_ZSX		= 52,	// =>NRF24L01
+	PROTO_FLYZONE	= 53,	// =>A7105
+	PROTO_SCANNER	= 54,	// =>CC2500
+	PROTO_FRSKYX_RX	= 55,	// =>CC2500
+	PROTO_XN297DUMP	= 63,	// =>NRF24L01
 };

 enum Flysky
@@ -85,6 +93,10 @@ enum Flysky
 	V912	= 3,
 	CX20	= 4,
 };
+enum Flyzone
+{
+	FZ410	= 0,
+};
 enum Hubsan
 {
 	H107	= 0,
@@ -166,6 +178,7 @@ enum BAYANG
    H8S3D	= 1,
    X16_AH  = 2,
 	IRDRONE = 3,
+	DHD_D4	= 4,
 };
 enum MT99XX
 {
@@ -267,6 +280,21 @@ enum BUGSMINI
 	BUGSMINI= 0,
 	BUGS3H	= 1,
 };
+enum REDPINE
+{
+	RED_FAST= 0,
+	RED_SLOW= 1,
+};
+enum TRAXXAS
+{
+	RX6519	= 0,
+};
+enum FRSKYX_RX
+{
+	FRSKYX_FCC	= 0,
+	FRSKYX_LBT
+};
+
 #define NONE 		0
 #define P_HIGH		1
 #define P_LOW		0
@@ -281,6 +309,7 @@ struct PPM_Parameters
 	uint8_t power : 1;
 	uint8_t autobind : 1;
 	uint8_t option;
+	uint32_t chan_order;
 };

 // Telemetry
@@ -297,6 +326,9 @@ enum MultiPacketTypes
 	MULTI_TELEMETRY_SYNC			= 8,
 	MULTI_TELEMETRY_SPORT_POLLING	= 9,
 	MULTI_TELEMETRY_HITEC			= 10,
+	MULTI_TELEMETRY_SCANNER			= 11,
+	MULTI_TELEMETRY_AFHDS2A_AC		= 12,
+	MULTI_TELEMETRY_RX_CHANNELS		= 13,
 };

 // Macros
@@ -380,15 +412,16 @@ enum MultiPacketTypes
 //********************
 //** Debug messages **
 //********************
-#if defined(STM32_BOARD) && defined (DEBUG_SERIAL)
+#if defined(STM32_BOARD) && (defined (DEBUG_SERIAL) || defined (ARDUINO_MULTI_DEBUG))
 	uint16_t debug_time=0;
 	#define debug(msg, ...)  {char debug_buf[64]; sprintf(debug_buf, msg, ##__VA_ARGS__); Serial.write(debug_buf);}
 	#define debugln(msg, ...)  {char debug_buf[64]; sprintf(debug_buf, msg "\r\n", ##__VA_ARGS__); Serial.write(debug_buf);}
 	#define debug_time(msg)  { uint16_t debug_time_TCNT1=TCNT1; debug_time=debug_time_TCNT1-debug_time; debug(msg "%u", debug_time>>1); debug_time=debug_time_TCNT1; }
+	#define debugln_time(msg)  { uint16_t debug_time_TCNT1=TCNT1; debug_time=debug_time_TCNT1-debug_time; debug(msg "%u\r\n", debug_time>>1); debug_time=debug_time_TCNT1; }
 #else
 	#define debug(...) { }
 	#define debugln(...) { }
-	#define debug_time(...) { }
+	#define debugln_time(...) { }
 	#undef DEBUG_SERIAL
 #endif

@@ -540,8 +573,9 @@ enum {
 #define EEPROM_ID_VALID_OFFSET	20		// 1 byte flag that ID is valid
 #define MODELMODE_EEPROM_OFFSET	30		// Autobind mode, 1 byte per model, end is 30+16=46
 #define AFHDS2A_EEPROM_OFFSET	50		// RX ID, 4 bytes per model id, end is 50+64=114
-#define BUGS_EEPROM_OFFSET		114		// TX ID, 4 bytes per model id, end is 114+64=178
-#define BUGSMINI_EEPROM_OFFSET	178		// RX ID, 2 bytes per model id, end is 178+32=210
+#define BUGS_EEPROM_OFFSET		114		// RX ID, 2 bytes per model id, end is 114+32=146
+#define BUGSMINI_EEPROM_OFFSET	146		// RX ID, 2 bytes per model id, end is 146+32=178
+#define FRSKYX_RX_EEPROM_OFFSET	178		// (3) TX ID + (1) freq_tune + (47) channels, 51 bytes per model, end is 178+51=229
 //#define CONFIG_EEPROM_OFFSET 	210		// Current configuration of the multimodule

 //****************************************
@@ -608,6 +642,14 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
 					E01X		45
 					V911S		46
 					GD00X		47
+					V761		48
+					KF606		49
+					REDPINE		50
+					POTENSIC	51
+					ZSX			52
+					FLYZONE		53
+					SCANNER		54
+					FRSKYX_RX	55
   BindBit=>		0x80	1=Bind/0=No
   AutoBindBit=>	0x40	1=Yes /0=No
   RangeCheck=>		0x20	1=Yes /0=No
@@ -665,6 +707,7 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
 			H8S3D		1
 			X16_AH		2
 			IRDRONE		3
+			DHD_D4		4
 		sub_protocol==MT99XX
 			MT99		0
 			H7			1
@@ -743,6 +786,14 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
 		sub_protocol==GD00X
 			GD_V1		0
 			GD_V2		1
+		sub_protocol==REDPINE
+			RED_FAST	0
+			RED_SLOW	1
+		sub_protocol==TRAXXAS
+			RX6519		0
+		sub_protocol==FRSKYX_RX
+			FCC			0
+			LBT			1

   Power value => 0x80	0=High/1=Low
  Stream[3]   = option_protocol;
@@ -756,7 +807,7 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
 	2047	+125%
   Values are concatenated to fit in 22 bytes like in SBUS protocol.
   Failsafe values have exactly the same range/values than normal channels except the extremes where
-      0=hold, 2047=no pulse. If failsafe is not set or RX then failsafe packets should not be sent.
+      0=no pulse, 2047=hold. If failsafe is not set or RX then failsafe packets should not be sent.
 */
 /*
  Multimodule Status
@@ -813,6 +864,7 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
   0x04 = protocol is valid
   0x08 = module is in binding mode
   0x10 = module waits a bind event to load the protocol
+   0x20 = current protocol supports failsafe
   [5] major
   [6] minor
   [7] revision
@@ -827,7 +879,6 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --

 	*No* usual frsky byte stuffing and without start/stop byte (0x7e)

-
  Type 0x04 Spektrum telemetry data
   data[0] TX RSSI
   data[1-15] telemetry data
@@ -838,7 +889,7 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
    technically DSM bind data is only 10 bytes but multi sends 16
    like with telemtery, check length field)

-  Type 0x06 Flysky AFHDS2 telemetry data
+  Type 0x06 Flysky AFHDS2 telemetry data type 0xAA
   length: 29
   data[0] = RSSI value
   data[1-28] telemetry data
@@ -851,4 +902,22 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
   data[3-7] telemetry data
   Full description at the bottom of Hitec_cc2500.ino

+  Type 0x0B Spectrum Scanner telemetry data
+   length: 6
+   data[0] = start channel (2400 + x*0.333 Mhz)
+   data[1-5] power levels
+
+  Type 0x0C Flysky AFHDS2 telemetry data type 0xAC
+   length: 29
+   data[0] = RSSI value
+   data[1-28] telemetry data
+
+  Type 0x0D RX channels forwarding
+   length: variable
+   data[0] = received packets per second
+   data[1] = rssi
+   data[2] = start channel
+   data[3] = number of channels to follow
+   data[4-]= packed channels data, 11 bit per channel
+
 */
--- a/Multiprotocol/Multiprotocol.ino
+++ b/Multiprotocol/Multiprotocol.ino
@@ -111,9 +111,14 @@ uint16_t failsafe_count;
 uint16_t state;
 uint8_t  len;
 uint8_t  armed, arm_flags, arm_channel_previous;
+uint8_t  num_ch;

-#if defined(FRSKYX_CC2500_INO) || defined(SFHSS_CC2500_INO) || defined(HITEC_CC2500_INO)
-	uint8_t calData[48];
+#ifdef CC2500_INSTALLED
+	#ifdef SCANNER_CC2500_INO
+		uint8_t calData[255];
+	#else
+		uint8_t calData[50];
+	#endif
 #endif

 #ifdef CHECK_FOR_BOOTLOADER
@@ -142,6 +147,7 @@ uint8_t protocol_flags=0,protocol_flags2=0;
 // PPM variable
 volatile uint16_t PPM_data[NUM_CHN];
 volatile uint8_t  PPM_chan_max=0;
+uint32_t chan_order=0;
 #endif

 #if not defined (ORANGE_TX) && not defined (STM32_BOARD)
@@ -166,7 +172,7 @@ volatile uint8_t rx_ok_buff[RXBUFFER_SIZE];
 volatile uint8_t discard_frame = 0;

 // Telemetry
-#define MAX_PKT 29
+#define MAX_PKT 30
 uint8_t pkt[MAX_PKT];//telemetry receiving packets
 #if defined(TELEMETRY)
 	#ifdef INVERT_TELEMETRY
@@ -223,7 +229,25 @@ void setup()
 	// Setup diagnostic uart before anything else
 	#ifdef DEBUG_SERIAL
 		Serial.begin(115200,SERIAL_8N1);
-		while (!Serial); // Wait for ever for the serial port to connect...
+
+		// Wait up to 30s for a serial connection; double-blink the LED while we wait
+		unsigned long currMillis = millis();
+		unsigned long initMillis = currMillis;
+		pinMode(LED_pin,OUTPUT);
+		LED_off;
+		while (!Serial && (currMillis - initMillis) <= 30000) {
+			LED_on;
+			delay(100);
+			LED_off;
+			delay(100);
+			LED_on;
+			delay(100);
+			LED_off;
+			delay(500);
+			currMillis = millis();
+		}
+
+		delay(50);  // Brief delay for FTDI debugging
 		debugln("Multiprotocol version: %d.%d.%d.%d", VERSION_MAJOR, VERSION_MINOR, VERSION_REVISION, VERSION_PATCH_LEVEL);
 	#endif

@@ -397,7 +421,7 @@ void setup()
 #endif

 	// Read or create protocol id
-	MProtocol_id_master=random_id(10,false);
+	MProtocol_id_master=random_id(EEPROM_ID_OFFSET,false);

 	debugln("Module Id: %lx", MProtocol_id_master);
 	
@@ -412,9 +436,10 @@ void setup()
 		#endif
 		
 		protocol		=	PPM_prot_line->protocol;
-		cur_protocol[1] = protocol;
+		cur_protocol[1] =	protocol;
 		sub_protocol   	=	PPM_prot_line->sub_proto;
 		RX_num			=	PPM_prot_line->rx_num;
+		chan_order		=	PPM_prot_line->chan_order;

 		//Forced frequency tuning values for CC2500 protocols
 		#if defined(FORCE_FRSKYD_TUNING) && defined(FRSKYD_CC2500_INO)
@@ -442,6 +467,11 @@ void setup()
 				option			=	FORCE_CORONA_TUNING;		// Use config-defined tuning value for CORONA
 			else
 		#endif
+		#if defined(FORCE_REDPINE_TUNING) && defined(REDPINE_CC2500_INO)
+			if (protocol==PROTO_REDPINE)
+				option			=	FORCE_REDPINE_TUNING;		// Use config-defined tuning value for REDPINE
+			else
+		#endif
 		#if defined(FORCE_HITEC_TUNING) && defined(HITEC_CC2500_INO)
 			if (protocol==PROTO_HITEC)
 				option			=	FORCE_HITEC_TUNING;		// Use config-defined tuning value for HITEC
@@ -599,6 +629,8 @@ uint8_t Update_All()
 	#ifdef ENABLE_PPM
 		if(mode_select!=MODE_SERIAL && IS_PPM_FLAG_on)		// PPM mode and a full frame has been received
 		{
+			uint32_t chan_or=chan_order;
+			uint8_t ch;
 			for(uint8_t i=0;i<PPM_chan_max;i++)
 			{ // update servo data without interrupts to prevent bad read
 				uint16_t val;
@@ -608,9 +640,20 @@ uint8_t Update_All()
 				val=map16b(val,PPM_MIN_100*2,PPM_MAX_100*2,CHANNEL_MIN_100,CHANNEL_MAX_100);
 				if(val&0x8000) 					val=CHANNEL_MIN_125;
 				else if(val>CHANNEL_MAX_125)	val=CHANNEL_MAX_125;
-				Channel_data[i]=val;
+				if(chan_or)
+				{
+					ch=chan_or>>28;
+					if(ch)
+						Channel_data[ch-1]=val;
+					else
+						Channel_data[i]=val;
+					chan_or<<=4;
+				}
+				else
+					Channel_data[i]=val;
 			}
 			PPM_FLAG_off;									// wait for next frame before update
+			PPM_failsafe();
 			update_channels_aux();
 			INPUT_SIGNAL_on;								// valid signal received
 			last_signal=millis();
@@ -619,7 +662,7 @@ uint8_t Update_All()
 	update_led_status();
 	#if defined(TELEMETRY)
 		#if ( !( defined(MULTI_TELEMETRY) || defined(MULTI_STATUS) ) )
-			if( (protocol==PROTO_FRSKYD) || (protocol==PROTO_BAYANG) || (protocol==PROTO_NCC1701) || (protocol==PROTO_BUGS) || (protocol==PROTO_BUGSMINI) || (protocol==PROTO_HUBSAN) || (protocol==PROTO_AFHDS2A) || (protocol==PROTO_FRSKYX) || (protocol==PROTO_DSM) || (protocol==PROTO_CABELL)  || (protocol==PROTO_HITEC))
+			if( (protocol == PROTO_FRSKYX_RX) || (protocol == PROTO_SCANNER) || (protocol==PROTO_FRSKYD) || (protocol==PROTO_BAYANG) || (protocol==PROTO_NCC1701) || (protocol==PROTO_BUGS) || (protocol==PROTO_BUGSMINI) || (protocol==PROTO_HUBSAN) || (protocol==PROTO_AFHDS2A) || (protocol==PROTO_FRSKYX) || (protocol==PROTO_DSM) || (protocol==PROTO_CABELL)  || (protocol==PROTO_HITEC))
 		#endif
 				TelemetryUpdate();
 	#endif
@@ -634,8 +677,8 @@ uint8_t Update_All()
 		{ // Autobind is on and BIND_CH went down
 			BIND_CH_PREV_off;
 			//Request protocol to terminate bind
-			#if defined(FRSKYD_CC2500_INO) || defined(FRSKYX_CC2500_INO) || defined(FRSKYV_CC2500_INO)
-			if(protocol==PROTO_FRSKYD || protocol==PROTO_FRSKYX || protocol==PROTO_FRSKYV)
+			#if defined(FRSKYD_CC2500_INO) || defined(FRSKYX_CC2500_INO) || defined(FRSKYV_CC2500_INO) || defined(AFHDS2A_A7105_INO)
+			if(protocol==PROTO_FRSKYD || protocol==PROTO_FRSKYX || protocol==PROTO_FRSKYV || protocol==PROTO_AFHDS2A )
 				BIND_DONE;
 			else
 			#endif
@@ -651,6 +694,32 @@ uint8_t Update_All()
 	return 0;
 }

+#ifdef ENABLE_PPM
+void PPM_failsafe()
+{
+	static uint8_t counter=0;
+	
+	if(IS_BIND_IN_PROGRESS || IS_FAILSAFE_VALUES_on) 	// bind is not finished yet or Failsafe already being sent
+		return;
+	BIND_SET_INPUT;
+	BIND_SET_PULLUP;
+	if(IS_BIND_BUTTON_on)
+	{// bind button pressed
+		counter++;
+		if(counter>227)
+		{ //after 5s with PPM frames @22ms
+			counter=0;
+			for(uint8_t i=0;i<NUM_CHN;i++)
+				Failsafe_data[i]=Channel_data[i];
+			FAILSAFE_VALUES_on;
+		}
+	}
+	else
+		counter=0;
+	BIND_SET_OUTPUT;
+}
+#endif
+
 // Update channels direction and Channel_AUX flags based on servo AUX positions
 static void update_channels_aux(void)
 {
@@ -885,7 +954,7 @@ static void protocol_init()
 		set_rx_tx_addr(MProtocol_id);
 		
 		#ifdef FAILSAFE_ENABLE
-			InitFailsafe();
+			FAILSAFE_VALUES_off;
 		#endif
 	
 		blink=millis();
@@ -927,6 +996,13 @@ static void protocol_init()
 						remote_callback = ReadBUGS;
 						break;
 				#endif
+				#if defined(FLYZONE_A7105_INO)
+					case PROTO_FLYZONE:
+						PE1_off;	//antenna RF1
+						next_callback = initFlyzone();
+						remote_callback = ReadFlyzone;
+						break;
+				#endif
 			#endif
 			#ifdef CC2500_INSTALLED
 				#if defined(FRSKYD_CC2500_INO)
@@ -969,6 +1045,14 @@ static void protocol_init()
 						remote_callback = ReadCORONA;
 						break;
 				#endif
+				#if defined(REDPINE_CC2500_INO)
+					case PROTO_REDPINE:
+						PE1_off;	//antenna RF2
+						PE2_on;
+						next_callback = initREDPINE();
+						remote_callback = ReadREDPINE;
+						break;
+				#endif
 				#if defined(HITEC_CC2500_INO)
 					case PROTO_HITEC:
 						PE1_off;	//antenna RF2
@@ -977,6 +1061,22 @@ static void protocol_init()
 						remote_callback = ReadHITEC;
 						break;
 				#endif
+				#if defined(SCANNER_CC2500_INO)
+					case PROTO_SCANNER:
+						PE1_off;
+						PE2_on;	//antenna RF2
+						next_callback = initScanner();
+						remote_callback = Scanner_callback;
+						break;
+				#endif
+				#if defined(FRSKYX_RX_CC2500_INO)
+					case PROTO_FRSKYX_RX:
+						PE1_off;
+						PE2_on;	//antenna RF2
+						next_callback = initFrSkyX_Rx();
+						remote_callback = FrSkyX_Rx_callback;
+						break;
+				#endif
 			#endif
 			#ifdef CYRF6936_INSTALLED
 				#if defined(DSM_CYRF6936_INO)
@@ -1044,6 +1144,13 @@ static void protocol_init()
 						remote_callback = ReadJ6Pro;
 						break;
 				#endif
+				#if defined(TRAXXAS_CYRF6936_INO)
+					case PROTO_TRAXXAS:
+						PE2_on;	//antenna RF4
+						next_callback = initTRAXXAS();
+						remote_callback = ReadTRAXXAS;
+						break;
+				#endif
 			#endif
 			#ifdef NRF24L01_INSTALLED
 				#if defined(HISKY_NRF24L01_INO)
@@ -1222,10 +1329,34 @@ static void protocol_init()
 						remote_callback = GD00X_callback;
 						break;
 				#endif
-				#if defined(TEST_NRF24L01_INO)
-					case PROTO_TEST:
-						next_callback=initTest();
-						remote_callback = Test_callback;
+				#if defined(V761_NRF24L01_INO)
+					case PROTO_V761:
+						next_callback=initV761();
+						remote_callback = V761_callback;
+						break;
+				#endif
+				#if defined(KF606_NRF24L01_INO)
+					case PROTO_KF606:
+						next_callback=initKF606();
+						remote_callback = KF606_callback;
+						break;
+				#endif
+				#if defined(POTENSIC_NRF24L01_INO)
+					case PROTO_POTENSIC:
+						next_callback=initPOTENSIC();
+						remote_callback = POTENSIC_callback;
+						break;
+				#endif
+				#if defined(ZSX_NRF24L01_INO)
+					case PROTO_ZSX:
+						next_callback=initZSX();
+						remote_callback = ZSX_callback;
+						break;
+				#endif
+				#if defined(XN297DUMP_NRF24L01_INO)
+					case PROTO_XN297DUMP:
+						next_callback=initXN297Dump();
+						remote_callback = XN297Dump_callback;
 						break;
 				#endif
 			#endif
@@ -1309,13 +1440,18 @@ void update_serial_data()
 			option=FORCE_CORONA_TUNING;	// Use config-defined tuning value for CORONA
 		else
 	#endif
+	#if defined(FORCE_REDPINE_TUNING) && defined(REDPINE_CC2500_INO)
+		if (protocol==PROTO_REDPINE)
+			option=FORCE_REDPINE_TUNING;	// Use config-defined tuning value for REDPINE
+		else
+	#endif
 	#if defined(FORCE_HITEC_TUNING) && defined(HITEC_CC2500_INO)
 		if (protocol==PROTO_HITEC)
 			option=FORCE_HITEC_TUNING;	// Use config-defined tuning value for HITEC
 		else
 	#endif
 			option=rx_ok_buff[3];		// Use radio-defined option value
-	
+
 	#ifdef FAILSAFE_ENABLE
 		bool failsafe=false;
 		if(rx_ok_buff[0]&0x02)
@@ -1350,8 +1486,8 @@ void update_serial_data()
 		else
 			if( ((rx_ok_buff[1]&0x80)==0) && ((cur_protocol[1]&0x80)!=0) )	// Bind flag has been reset
 			{ // Request protocol to end bind
-				#if defined(FRSKYD_CC2500_INO) || defined(FRSKYX_CC2500_INO) || defined(FRSKYV_CC2500_INO)
-				if(protocol==PROTO_FRSKYD || protocol==PROTO_FRSKYX || protocol==PROTO_FRSKYV)
+				#if defined(FRSKYD_CC2500_INO) || defined(FRSKYX_CC2500_INO) || defined(FRSKYV_CC2500_INO) || defined(AFHDS2A_A7105_INO)
+				if(protocol==PROTO_FRSKYD || protocol==PROTO_FRSKYX || protocol==PROTO_FRSKYV || protocol==PROTO_AFHDS2A )
 					BIND_DONE;
 				else
 				#endif
@@ -1378,7 +1514,7 @@ void update_serial_data()
 		uint16_t temp=((*((uint32_t *)p))>>dec)&0x7FF;
 		#ifdef FAILSAFE_ENABLE
 			if(failsafe)
-				Failsafe_data[i]=temp;			//value range 0..2047, 0=no pulses, 2047=hold
+				Failsafe_data[i]=temp;			//value range 0..2047, 0=no pulse, 2047=hold
 			else
 		#endif
 				Channel_data[i]=temp;			//value range 0..2047, 0=-125%, 2047=+125%
@@ -1875,3 +2011,20 @@ static uint32_t random_id(uint16_t address, uint8_t create_new)
 		}
 	}
 #endif
+
+// Set the flags for detecting and writing the firmware signature
+#if defined (CHECK_FOR_BOOTLOADER)
+    bool firmwareFlag_CHECK_FOR_BOOTLOADER = true;
+#endif
+#if defined (MULTI_STATUS)
+    bool firmwareFlag_MULTI_STATUS = true;
+#endif
+#if defined (MULTI_TELEMETRY)
+    bool firmwareFlag_MULTI_TELEMETRY = true;
+#endif
+#if defined (INVERT_TELEMETRY)
+    bool firmwareFlag_INVERT_TELEMETRY = true;
+#endif
+#if defined (DEBUG_SERIAL)
+    bool firmwareFlag_DEBUG_SERIAL = true;
+#endif
--- a/Multiprotocol/NRF24l01_SPI.ino
+++ b/Multiprotocol/NRF24l01_SPI.ino
@@ -194,8 +194,6 @@ void NRF24L01_SetTxRxMode(enum TXRX_State mode)
 		if (mode == RX_EN)
 		{
 			NRF_CE_off;
-			NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);        // reset the flag(s)
-			NRF24L01_WriteReg(NRF24L01_00_CONFIG, 0x0F);        // switch to RX mode
 			NRF24L01_WriteReg(NRF24L01_07_STATUS, (1 << NRF24L01_07_RX_DR)    //reset the flag(s)
 												| (1 << NRF24L01_07_TX_DS)
 												| (1 << NRF24L01_07_MAX_RT));
@@ -251,26 +249,52 @@ uint8_t xn297_tx_addr[5];
 uint8_t xn297_rx_addr[5];
 uint8_t xn297_crc = 0;

-static const uint8_t xn297_scramble[] = {
-	0xe3, 0xb1, 0x4b, 0xea, 0x85, 0xbc, 0xe5, 0x66,
-	0x0d, 0xae, 0x8c, 0x88, 0x12, 0x69, 0xee, 0x1f,
-	0xc7, 0x62, 0x97, 0xd5, 0x0b, 0x79, 0xca, 0xcc,
-	0x1b, 0x5d, 0x19, 0x10, 0x24, 0xd3, 0xdc, 0x3f,
-	0x8e, 0xc5, 0x2f};
+// xn297 address / pcf / payload scramble table
+const uint8_t xn297_scramble[] = {
+    0xE3, 0xB1, 0x4B, 0xEA, 0x85, 0xBC, 0xE5, 0x66,
+    0x0D, 0xAE, 0x8C, 0x88, 0x12, 0x69, 0xEE, 0x1F,
+    0xC7, 0x62, 0x97, 0xD5, 0x0B, 0x79, 0xCA, 0xCC,
+    0x1B, 0x5D, 0x19, 0x10, 0x24, 0xD3, 0xDC, 0x3F,
+    0x8E, 0xC5, 0x2F, 0xAA, 0x16, 0xF3, 0x95 };

+// scrambled, standard mode crc xorout table
 const uint16_t PROGMEM xn297_crc_xorout_scrambled[] = {
-	0x0000, 0x3448, 0x9BA7, 0x8BBB, 0x85E1, 0x3E8C,
-	0x451E, 0x18E6, 0x6B24, 0xE7AB, 0x3828, 0x814B,
-	0xD461, 0xF494, 0x2503, 0x691D, 0xFE8B, 0x9BA7,
-	0x8B17, 0x2920, 0x8B5F, 0x61B1, 0xD391, 0x7401,
-	0x2138, 0x129F, 0xB3A0, 0x2988};
+    0x0000, 0x3448, 0x9BA7, 0x8BBB, 0x85E1, 0x3E8C,
+    0x451E, 0x18E6, 0x6B24, 0xE7AB, 0x3828, 0x814B,
+    0xD461, 0xF494, 0x2503, 0x691D, 0xFE8B, 0x9BA7,
+    0x8B17, 0x2920, 0x8B5F, 0x61B1, 0xD391, 0x7401,
+    0x2138, 0x129F, 0xB3A0, 0x2988, 0x23CA, 0xC0CB,
+    0x0C6C, 0xB329, 0xA0A1, 0x0A16, 0xA9D0 };

+// unscrambled, standard mode crc xorout table
 const uint16_t PROGMEM xn297_crc_xorout[] = {
-	0x0000, 0x3d5f, 0xa6f1, 0x3a23, 0xaa16, 0x1caf,
-	0x62b2, 0xe0eb, 0x0821, 0xbe07, 0x5f1a, 0xaf15,
-	0x4f0a, 0xad24, 0x5e48, 0xed34, 0x068c, 0xf2c9,
-	0x1852, 0xdf36, 0x129d, 0xb17c, 0xd5f5, 0x70d7,
-	0xb798, 0x5133, 0x67db, 0xd94e};
+    0x0000, 0x3D5F, 0xA6F1, 0x3A23, 0xAA16, 0x1CAF,
+    0x62B2, 0xE0EB, 0x0821, 0xBE07, 0x5F1A, 0xAF15,
+    0x4F0A, 0xAD24, 0x5E48, 0xED34, 0x068C, 0xF2C9,
+    0x1852, 0xDF36, 0x129D, 0xB17C, 0xD5F5, 0x70D7,
+    0xB798, 0x5133, 0x67DB, 0xD94E, 0x0A5B, 0xE445,
+    0xE6A5, 0x26E7, 0xBDAB, 0xC379, 0x8E20 };
+
+// scrambled enhanced mode crc xorout table
+const uint16_t PROGMEM xn297_crc_xorout_scrambled_enhanced[] = {
+    0x0000, 0x7EBF, 0x3ECE, 0x07A4, 0xCA52, 0x343B,
+    0x53F8, 0x8CD0, 0x9EAC, 0xD0C0, 0x150D, 0x5186,
+    0xD251, 0xA46F, 0x8435, 0xFA2E, 0x7EBD, 0x3C7D,
+    0x94E0, 0x3D5F, 0xA685, 0x4E47, 0xF045, 0xB483,
+    0x7A1F, 0xDEA2, 0x9642, 0xBF4B, 0x032F, 0x01D2,
+    0xDC86, 0x92A5, 0x183A, 0xB760, 0xA953 };
+
+// unscrambled enhanced mode crc xorout table
+// unused so far
+#ifdef XN297DUMP_NRF24L01_INO
+const uint16_t xn297_crc_xorout_enhanced[] = {
+    0x0000, 0x8BE6, 0xD8EC, 0xB87A, 0x42DC, 0xAA89,
+    0x83AF, 0x10E4, 0xE83E, 0x5C29, 0xAC76, 0x1C69,
+    0xA4B2, 0x5961, 0xB4D3, 0x2A50, 0xCB27, 0x5128,
+    0x7CDB, 0x7A14, 0xD5D2, 0x57D7, 0xE31D, 0xCE42,
+    0x648D, 0xBF2D, 0x653B, 0x190C, 0x9117, 0x9A97,
+    0xABFC, 0xE68E, 0x0DE7, 0x28A2, 0x1965 };
+#endif

 static uint8_t bit_reverse(uint8_t b_in)
 {
@@ -365,8 +389,7 @@ void XN297_WritePayload(uint8_t* msg, uint8_t len)
 	for (uint8_t i = 0; i < len; ++i)
 	{
 		// bit-reverse bytes in packet
-		uint8_t b_out = bit_reverse(msg[i]);
-		buf[last] = b_out;
+		buf[last] = bit_reverse(msg[i]);
 		if(xn297_scramble_enabled)
 			buf[last] ^= xn297_scramble[xn297_addr_len+i];
 		last++;
@@ -387,8 +410,7 @@ void XN297_WritePayload(uint8_t* msg, uint8_t len)
 	NRF24L01_WritePayload(buf, last);
 }

-
-void XN297_WriteEnhancedPayload(uint8_t* msg, uint8_t len, uint8_t noack, uint16_t crc_xorout)
+void XN297_WriteEnhancedPayload(uint8_t* msg, uint8_t len, uint8_t noack)
 {
 	uint8_t packet[32];
 	uint8_t scramble_index=0;
@@ -444,7 +466,10 @@ void XN297_WriteEnhancedPayload(uint8_t* msg, uint8_t len, uint8_t noack, uint16
 		for (uint8_t i = offset; i < last; ++i)
 			crc = crc16_update(crc, packet[i], 8);
 		crc = crc16_update(crc, packet[last] & 0xc0, 2);
-		crc ^= crc_xorout;
+		if (xn297_scramble_enabled)
+			crc ^= pgm_read_word(&xn297_crc_xorout_scrambled_enhanced[xn297_addr_len-3+len]);
+		//else
+		//	crc ^= pgm_read_word(&xn297_crc_xorout_enhanced[xn297_addr_len - 3 + len]);

 		packet[last++] |= (crc >> 8) >> 2;
 		packet[last++] = ((crc >> 8) << 6) | ((crc & 0xff) >> 2);
--- a/Multiprotocol/POTENSIC_nrf24l01.ino
+++ b/Multiprotocol/POTENSIC_nrf24l01.ino
@@ -0,0 +1,125 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+  */
+
+#if defined(POTENSIC_NRF24L01_INO)
+
+#include "iface_nrf24l01.h"
+
+//#define FORCE_POTENSIC_ORIGINAL_ID
+
+#define POTENSIC_PACKET_PERIOD		4100 // Timeout for callback in uSec
+#define POTENSIC_INITIAL_WAIT		500
+#define POTENSIC_PACKET_SIZE		10
+#define POTENSIC_BIND_COUNT			400
+#define POTENSIC_RF_NUM_CHANNELS	4
+
+static void __attribute__((unused)) POTENSIC_set_checksum()
+{
+	uint8_t checksum = packet[1];
+	for(uint8_t i=2; i<POTENSIC_PACKET_SIZE-2; i++)
+		checksum += packet[i];
+	packet[8] |= checksum & 0x0f;
+}
+
+static void __attribute__((unused)) POTENSIC_send_packet()
+{
+	packet[8]=0;
+	if(IS_BIND_IN_PROGRESS)
+	{
+		packet[0] = 0x61;
+		memcpy(&packet[1],rx_tx_addr,5);
+		packet[6] = 0x20;
+		packet[7] = 0xC0;
+	}
+	else
+	{ 
+		packet[0] = 0x64;
+		// Deadband is needed on throttle to emulate the spring to neutral otherwise the quad behaves weirdly, 160 gives +-20%
+		packet[1] = convert_channel_8b_limit_deadband(THROTTLE,0x00,0x19,0x32,160)<<1;	// Throttle 00..19..32 *2
+		uint8_t elevator=convert_channel_8b(ELEVATOR)>>3;			
+		packet[2] = ((255-convert_channel_8b(RUDDER))&0xF8)|(elevator>>2);
+		packet[3] = (elevator<<6)|(((255-convert_channel_8b(AILERON))>>2)&0xFE);
+		packet[4] = 0x20;	// Trim
+		packet[5] = 0x20	// Trim
+					| GET_FLAG(CH7_SW, 0x80);			// High: +100%
+		packet[6] = 0x20;	// Trim
+		packet[7] = 0x40								// Low: -100%
+					| GET_FLAG((Channel_data[CH7] > CHANNEL_MIN_COMMAND && !CH7_SW), 0x80)	// Medium: 0%
+					| GET_FLAG((CH5_SW||CH6_SW), 0x02)	// Momentary Take off/Landing + Emergency
+					| GET_FLAG(CH8_SW, 0x04);			// Headless: -100%=off,+100%=on
+		packet[8] = GET_FLAG(CH6_SW, 0x80);				// Emergency
+	}
+	POTENSIC_set_checksum();
+	packet[9] = hopping_frequency_no;
+	NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[hopping_frequency_no&0x03]);
+	hopping_frequency_no++;
+	// Power on, TX mode, 2byte CRC
+	XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
+	NRF24L01_FlushTx();
+	XN297_WritePayload(packet, POTENSIC_PACKET_SIZE);
+	NRF24L01_SetPower();
+}
+
+static void __attribute__((unused)) POTENSIC_init()
+{
+	NRF24L01_Initialize();
+	NRF24L01_SetTxRxMode(TX_EN);
+	NRF24L01_FlushTx();
+	NRF24L01_FlushRx();
+	if(IS_BIND_IN_PROGRESS)
+		XN297_SetTXAddr((uint8_t*)"\x01\x01\x01\x01\x06", 5);	// Bind address
+	else
+		XN297_SetTXAddr(rx_tx_addr,5);							// Normal address
+	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);			// No Auto Acknowldgement on all data pipes
+	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);		// Enable data pipe 0 only
+	NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, 0x03);		// set address length (5 bytes)
+	NRF24L01_WriteReg(NRF24L01_04_SETUP_RETR, 0x00);	// no retransmits
+	NRF24L01_SetBitrate(NRF24L01_BR_1M);				// 1Mbps
+	NRF24L01_SetPower();
+	NRF24L01_Activate(0x73);							// Activate feature register
+	NRF24L01_WriteReg(NRF24L01_1C_DYNPD, 0x00);			// Disable dynamic payload length on all pipes
+	NRF24L01_WriteReg(NRF24L01_1D_FEATURE, 0x01);
+	NRF24L01_Activate(0x73);
+}
+
+static void __attribute__((unused)) POTENSIC_initialize_txid()
+{
+	#ifdef FORCE_POTENSIC_ORIGINAL_ID
+		memcpy(rx_tx_addr,(uint8_t *)"\xF6\xE0\x20\x00\x0E",5);
+	#endif
+	memcpy(hopping_frequency,(uint8_t *)"\x32\x3E\x3A\x36",POTENSIC_RF_NUM_CHANNELS); //50, 62, 58, 54
+}
+
+uint16_t POTENSIC_callback()
+{
+	if(IS_BIND_IN_PROGRESS)
+		if(--bind_counter==0)
+		{
+			BIND_DONE;
+			XN297_SetTXAddr(rx_tx_addr,5);
+		}
+	POTENSIC_send_packet();
+	return POTENSIC_PACKET_PERIOD;
+}
+
+uint16_t initPOTENSIC(void)
+{
+	bind_counter = POTENSIC_BIND_COUNT;
+	POTENSIC_initialize_txid();
+	POTENSIC_init();
+	hopping_frequency_no = 0;
+	return	POTENSIC_INITIAL_WAIT;
+}
+
+#endif
--- a/Multiprotocol/Q303_nrf24l01.ino
+++ b/Multiprotocol/Q303_nrf24l01.ino
@@ -292,7 +292,6 @@ static void __attribute__((unused)) Q303_init()
 		case CX35:
 		case CX10D:
 		case CX10WD:
-			XN297_SetScrambledMode(XN297_SCRAMBLED);
 			NRF24L01_SetBitrate(NRF24L01_BR_1M);
 			break;
 		case Q303:
--- a/Multiprotocol/Redpine_cc2500.ino
+++ b/Multiprotocol/Redpine_cc2500.ino
@@ -0,0 +1,243 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if defined(REDPINE_CC2500_INO)
+
+#include "iface_cc2500.h"
+
+#define REDPINE_LOOPTIME_FAST 25	//2.5ms
+#define REDPINE_LOOPTIME_SLOW 6  	//6ms
+
+#define REDPINE_BIND 1000
+#define REDPINE_PACKET_SIZE 11
+#define REDPINE_FEC false  // from cc2500 datasheet: The convolutional coder is a rate 1/2 code with a constraint length of m=4
+#define REDPINE_NUM_HOPS 50
+
+static void REDPINE_set_channel(uint8_t ch)
+{
+    CC2500_Strobe(CC2500_SIDLE);
+    CC2500_WriteReg(CC2500_25_FSCAL1, calData[ch]);
+    CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[ch]);
+}
+
+static void REDPINE_build_bind_packet()
+{
+    memset(&packet[0], 0, REDPINE_PACKET_SIZE);
+
+    packet[0] = REDPINE_PACKET_SIZE - 1;
+    packet[1] = 0x03;
+    packet[2] = 0x01;
+    packet[3] = rx_tx_addr[2];
+    packet[4] = rx_tx_addr[3];	// Use RX_Num
+    uint16_t idx = ((REDPINE_BIND - bind_counter) % 10) * 5;
+    packet[5] = idx;
+    packet[6] = hopping_frequency[idx++];
+    packet[7] = hopping_frequency[idx++];
+    packet[8] = hopping_frequency[idx++];
+    packet[9] = hopping_frequency[idx++];
+    packet[10] = hopping_frequency[idx++];
+    // packet[11] = 0x02;
+    // packet[12] = RXNUM;
+}
+
+static uint16_t Redpine_Scale(uint8_t chan)
+{
+    uint16_t chan_val=Channel_data[chan];	// -125%..+125% <=> 0..2047
+	if (chan_val > 2046)   chan_val = 2046;
+    else if (chan_val < 10) chan_val = 10;
+    return chan_val;
+}
+
+
+static void REDPINE_data_frame() {
+    uint16_t chan[4];
+
+    memset(&packet[0], 0, REDPINE_PACKET_SIZE);
+
+    packet[0] = REDPINE_PACKET_SIZE - 1;
+    packet[1] = rx_tx_addr[2];
+    packet[2] = rx_tx_addr[3];	// Use RX_Num
+
+    chan[0] = Redpine_Scale(0);
+    chan[1] = Redpine_Scale(1);
+    chan[2] = Redpine_Scale(2);
+    chan[3] = Redpine_Scale(3);
+
+    packet[3] = chan[0];
+    packet[4] = (((chan[0] >> 8) & 0x07) | (chan[1] << 4)) | GET_FLAG(CH5_SW, 0x08);
+    packet[5] = ((chan[1] >> 4) & 0x7F) | GET_FLAG(CH6_SW, 0x80);
+    packet[6] = chan[2];
+    packet[7] = (((chan[2] >> 8) & 0x07) | (chan[3] << 4))  | GET_FLAG(CH7_SW, 0x08);
+    packet[8] = ((chan[3] >> 4) & 0x7F) | GET_FLAG(CH8_SW, 0x80);
+    packet[9] = GET_FLAG(CH9_SW, 0x01)
+            | GET_FLAG(CH10_SW, 0x02)
+            | GET_FLAG(CH11_SW, 0x04)
+            | GET_FLAG(CH12_SW, 0x08)
+            | GET_FLAG(CH13_SW, 0x10)
+            | GET_FLAG(CH14_SW, 0x20)
+            | GET_FLAG(CH15_SW, 0x40)
+            | GET_FLAG(CH16_SW, 0x80);
+
+    if (sub_protocol==0)
+        packet[10] = REDPINE_LOOPTIME_FAST;
+    else
+        packet[10] = REDPINE_LOOPTIME_SLOW;
+}
+
+static uint16_t ReadREDPINE()
+{
+	if ( prev_option != option )
+	{ // Frequency adjust
+		CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
+		prev_option = option ;
+	}
+	if(IS_BIND_IN_PROGRESS)
+	{
+		if(bind_counter == REDPINE_BIND)
+			REDPINE_init(0);
+		if(bind_counter == REDPINE_BIND/2)
+			REDPINE_init(1);
+		REDPINE_set_channel(49);
+        CC2500_SetTxRxMode(TX_EN);
+		CC2500_SetPower();
+		CC2500_Strobe(CC2500_SFRX);
+		REDPINE_build_bind_packet();
+		CC2500_Strobe(CC2500_SIDLE);
+		CC2500_WriteData(packet, REDPINE_PACKET_SIZE);
+		if(--bind_counter==0)
+		{
+			BIND_DONE;
+			REDPINE_init(sub_protocol);
+		}
+		return 9000;
+	}
+	else
+	{
+		CC2500_SetTxRxMode(TX_EN);
+		REDPINE_set_channel(hopping_frequency_no);
+		CC2500_SetPower();
+		CC2500_Strobe(CC2500_SFRX);
+		REDPINE_data_frame();
+		CC2500_Strobe(CC2500_SIDLE);
+		hopping_frequency_no = (hopping_frequency_no + 1) % 49;
+		CC2500_WriteData(packet, REDPINE_PACKET_SIZE);
+		if (sub_protocol==0)
+			return REDPINE_LOOPTIME_FAST*100;
+		else
+			return REDPINE_LOOPTIME_SLOW*1000;
+	}
+	return 1;
+}
+
+// register, fast 250k, slow
+static const uint8_t REDPINE_init_data[][3] = {
+    {CC2500_00_IOCFG2,    0x06, 0x06},
+    {CC2500_02_IOCFG0,    0x06, 0x06},
+    {CC2500_03_FIFOTHR,   0x07, 0x07},
+    {CC2500_07_PKTCTRL1,  0x04, 0x04},
+    {CC2500_08_PKTCTRL0,  0x05, 0x05},
+    {CC2500_09_ADDR,      0x00, 0x00},
+    {CC2500_0B_FSCTRL1,   0x0A, 0x0A},
+    {CC2500_0C_FSCTRL0,   0x00, 0x00},
+    {CC2500_0D_FREQ2,     0x5D, 0x5c},
+    {CC2500_0E_FREQ1,     0x93, 0x76},
+    {CC2500_0F_FREQ0,     0xB1, 0x27},
+    {CC2500_10_MDMCFG4,   0x2D, 0x7B},
+    {CC2500_11_MDMCFG3,   0x3B, 0x61},
+    {CC2500_12_MDMCFG2,   0x73, 0x13},
+    #ifdef REDPINE_FEC    
+        {CC2500_13_MDMCFG1,   0xA3, 0xA3},
+    #else
+        {CC2500_13_MDMCFG1,   0x23, 0x23},
+    #endif
+    {CC2500_14_MDMCFG0,   0x56, 0x7a},  // Chan space
+    {CC2500_15_DEVIATN,   0x00, 0x51},
+    {CC2500_17_MCSM1,     0x0c, 0x0c},
+    {CC2500_18_MCSM0,     0x08, 0x08}, //??? 0x18, 0x18},
+    {CC2500_19_FOCCFG,    0x1D, 0x16},
+    {CC2500_1A_BSCFG,     0x1C, 0x6c},
+    {CC2500_1B_AGCCTRL2,  0xC7, 0x43},
+    {CC2500_1C_AGCCTRL1,  0x00, 0x40},
+    {CC2500_1D_AGCCTRL0,  0xB0, 0x91},
+    {CC2500_21_FREND1,    0xB6, 0x56},
+    {CC2500_22_FREND0,    0x10, 0x10},
+    {CC2500_23_FSCAL3,    0xEA, 0xA9},
+    {CC2500_24_FSCAL2,    0x0A, 0x0A},
+    {CC2500_25_FSCAL1,    0x00, 0x00},
+    {CC2500_26_FSCAL0,    0x11, 0x11},
+    {CC2500_29_FSTEST,    0x59, 0x59},
+    {CC2500_2C_TEST2,     0x88, 0x88},
+    {CC2500_2D_TEST1,     0x31, 0x31},
+    {CC2500_2E_TEST0,     0x0B, 0x0B},
+    {CC2500_3E_PATABLE,   0xff, 0xff}
+};
+
+static void REDPINE_init(uint8_t format)
+{
+	CC2500_Reset();
+
+	CC2500_WriteReg(CC2500_06_PKTLEN, REDPINE_PACKET_SIZE);
+
+	for (uint8_t i=0; i < ((sizeof REDPINE_init_data) / (sizeof REDPINE_init_data[0])); i++)
+		CC2500_WriteReg(REDPINE_init_data[i][0], REDPINE_init_data[i][format+1]);
+
+	prev_option = option;
+	CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
+	CC2500_Strobe(CC2500_SIDLE);
+
+	// calibrate hop channels
+	for (uint8_t c = 0; c < REDPINE_NUM_HOPS; c++)
+	{
+		CC2500_Strobe(CC2500_SIDLE);
+		CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[c]);
+		CC2500_Strobe(CC2500_SCAL);
+		delayMicroseconds(900);
+		calData[c] = CC2500_ReadReg(CC2500_25_FSCAL1);
+	}
+}
+
+static uint16_t initREDPINE()
+{
+	hopping_frequency_no = 0;
+	// Used from kn_nrf24l01.c : kn_calculate_freqency_hopping_channels
+	uint32_t idx = 0;
+	uint32_t rnd = MProtocol_id;
+	#define REDPINE_MAX_RF_CHANNEL 255
+	hopping_frequency[idx++] = 1;
+	while (idx < REDPINE_NUM_HOPS-1)
+	{
+		uint32_t i;
+		rnd = rnd * 0x0019660D + 0x3C6EF35F;  // Randomization
+		// Drop least-significant byte for better randomization. Start from 1
+		uint8_t next_ch = (rnd >> 8) % REDPINE_MAX_RF_CHANNEL + 1;
+		// Check that it's not duplicate nor adjacent nor channel 0 or 1
+		for (i = 0; i < idx; i++)
+		{
+			uint8_t ch = hopping_frequency[i];
+			if ((ch <= next_ch + 1) && (ch >= next_ch - 1) && (ch > 1))
+				break;
+		}
+		if (i != idx)
+			continue;
+		hopping_frequency[idx++] = next_ch;
+	}
+	hopping_frequency[49] = 0;  // Last channel is the bind channel at hop 0
+
+	bind_counter=REDPINE_BIND;
+	REDPINE_init(sub_protocol);
+	CC2500_SetTxRxMode(TX_EN);  // enable PA
+	return 10000;
+}
+#endif
--- a/Multiprotocol/Scanner_cc2500.ino
+++ b/Multiprotocol/Scanner_cc2500.ino
@@ -0,0 +1,152 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if defined(SCANNER_CC2500_INO)
+
+#include "iface_cc2500.h"
+
+#define SCAN_MAX_RADIOCHANNEL	249 // 2483 MHz
+#define SCAN_CHANNEL_LOCK_TIME	210 // with precalibration, channel requires only 90 usec for synthesizer to settle
+#define SCAN_AVERAGE_INTVL		20
+#define SCAN_MAX_COUNT			5
+#define SCAN_CHANS_PER_PACKET	5
+
+static uint8_t scan_tlm_index;
+
+enum ScanStates {
+	SCAN_CHANNEL_CHANGE = 0,
+	SCAN_GET_RSSI = 1,
+};
+
+static void __attribute__((unused)) Scanner_cc2500_init()
+{
+	/* Initialize CC2500 chip */
+	CC2500_WriteReg(CC2500_08_PKTCTRL0, 0x12);   // Packet Automation Control
+    CC2500_WriteReg(CC2500_0B_FSCTRL1,  0x0A);   // Frequency Synthesizer Control
+    CC2500_WriteReg(CC2500_0C_FSCTRL0,  0x00);   // Frequency Synthesizer Control
+    CC2500_WriteReg(CC2500_0D_FREQ2,    0x5C);   // Frequency Control Word, High Byte
+    CC2500_WriteReg(CC2500_0E_FREQ1,    0x4E);   // Frequency Control Word, Middle Byte
+    CC2500_WriteReg(CC2500_0F_FREQ0,    0xC3);   // Frequency Control Word, Low Byte
+    CC2500_WriteReg(CC2500_10_MDMCFG4,  0x8D);   // Modem Configuration
+    CC2500_WriteReg(CC2500_11_MDMCFG3,  0x3B);   // Modem Configuration
+    CC2500_WriteReg(CC2500_12_MDMCFG2,  0x10);   // Modem Configuration
+    CC2500_WriteReg(CC2500_13_MDMCFG1,  0x23);   // Modem Configuration
+    CC2500_WriteReg(CC2500_14_MDMCFG0,  0xA4);   // Modem Configuration
+    CC2500_WriteReg(CC2500_15_DEVIATN,  0x62);   // Modem Deviation Setting
+    CC2500_WriteReg(CC2500_18_MCSM0,    0x08);   // Main Radio Control State Machine Configuration
+    CC2500_WriteReg(CC2500_19_FOCCFG,   0x1D);   // Frequency Offset Compensation Configuration
+    CC2500_WriteReg(CC2500_1A_BSCFG,    0x1C);   // Bit Synchronization Configuration
+    CC2500_WriteReg(CC2500_1B_AGCCTRL2, 0xC7);   // AGC Control
+    CC2500_WriteReg(CC2500_1C_AGCCTRL1, 0x00);   // AGC Control
+    CC2500_WriteReg(CC2500_1D_AGCCTRL0, 0xB0);   // AGC Control
+    CC2500_WriteReg(CC2500_21_FREND1,   0xB6);   // Front End RX Configuration
+
+	CC2500_SetTxRxMode(RX_EN);  // Receive mode
+	CC2500_Strobe(CC2500_SIDLE);
+	CC2500_Strobe(CC2500_SRX);
+
+	delayMicroseconds(1000);  // wait for RX to activate
+}
+
+static void __attribute__((unused)) Scanner_calibrate()
+{
+	for (uint8_t c = 0; c < SCAN_MAX_RADIOCHANNEL; c++)
+	{
+		CC2500_Strobe(CC2500_SIDLE);
+		CC2500_WriteReg(CC2500_0A_CHANNR, c);
+		CC2500_Strobe(CC2500_SCAL);
+		delayMicroseconds(900);
+		calData[c] = CC2500_ReadReg(CC2500_25_FSCAL1);
+	}
+	CC2500_Strobe(CC2500_SIDLE);
+}
+
+static void __attribute__((unused)) Scanner_scan_next()
+{
+	CC2500_WriteReg(CC2500_0A_CHANNR, rf_ch_num);
+	CC2500_WriteReg(CC2500_25_FSCAL1, calData[rf_ch_num]);
+	CC2500_Strobe(CC2500_SFRX);
+	CC2500_Strobe(CC2500_SRX);
+}
+
+static int __attribute__((unused)) Scanner_scan_rssi()
+{
+	uint8_t rssi;
+	rssi = CC2500_ReadReg(0x40 | CC2500_34_RSSI);  // 0.5 db/count, RSSI value read from the RSSI status register is a 2's complement number
+	uint8_t rssi_rel;
+	if (rssi >= 128) {
+		rssi_rel = rssi - 128;  // relative power levels 0-127 (equals -137 to -72 dBm)
+	}
+	else {
+		rssi_rel = rssi + 128;  // relativ power levels 128-255 (equals -73 to -10 dBm)
+	}
+	return rssi_rel;
+}
+
+uint16_t Scanner_callback()
+{
+	static uint8_t max_count, max_rssi;
+	uint8_t rssi;
+	switch (phase)
+	{
+		case SCAN_CHANNEL_CHANGE:
+			if(telemetry_link == 0) {
+				max_count = 0;
+				max_rssi = 0;
+				rf_ch_num++;
+				if (rf_ch_num >= (SCAN_MAX_RADIOCHANNEL + 1))
+					rf_ch_num = 0;
+				if (scan_tlm_index++ == 0)
+					pkt[0] = rf_ch_num;  // start channel for telemetry packet
+				Scanner_scan_next();
+				phase = SCAN_GET_RSSI;
+			}
+			return SCAN_CHANNEL_LOCK_TIME;
+		case SCAN_GET_RSSI:
+			rssi = Scanner_scan_rssi();
+			if(rssi >= max_rssi) {
+				max_rssi = rssi;
+				pkt[scan_tlm_index] = rssi;
+			}
+			max_count++;
+			if(max_count > SCAN_MAX_COUNT) {
+				phase = SCAN_CHANNEL_CHANGE;
+				if (scan_tlm_index == SCAN_CHANS_PER_PACKET)
+				{
+					// send data to TX
+					telemetry_link = 1;
+					scan_tlm_index = 0;
+				}
+			}
+	}
+	return SCAN_AVERAGE_INTVL;
+}
+
+uint16_t initScanner(void)
+{
+	rf_ch_num = SCAN_MAX_RADIOCHANNEL;
+	scan_tlm_index = 0;
+	telemetry_link = 0;
+	phase = SCAN_CHANNEL_CHANGE;
+	Scanner_cc2500_init();
+	CC2500_Strobe(CC2500_SRX);
+	Scanner_calibrate();
+	CC2500_Strobe(CC2500_SIDLE);
+	CC2500_SetTxRxMode(RX_EN);
+	CC2500_Strobe(CC2500_SRX);  // Receive mode
+	return 1250;
+}
+
+#endif
--- a/Multiprotocol/TRAXXAS_cyrf6936.ino
+++ b/Multiprotocol/TRAXXAS_cyrf6936.ino
@@ -0,0 +1,235 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ 
+ Works with Traxxas 6519 receivers https://traxxas.com/sites/default/files/24CompGuide-2016.jpg .
+ */
+
+#if defined(TRAXXAS_CYRF6936_INO)
+
+#include "iface_cyrf6936.h"
+
+//#define TRAXXAS_FORCE_ID
+
+#define TRAXXAS_CHANNEL 0x05
+#define TRAXXAS_BIND_CHANNEL 0x2B
+#define TRAXXAS_PACKET_SIZE 16
+
+enum {
+	TRAXXAS_BIND_PREP_RX=0,
+	TRAXXAS_BIND_RX,
+	TRAXXAS_BIND_TX1,
+	TRAXXAS_PREP_DATA,
+	TRAXXAS_DATA,
+};
+
+const uint8_t PROGMEM TRAXXAS_sop_bind[] ={ 0x3C, 0x37, 0xCC, 0x91, 0xE2, 0xF8, 0xCC, 0x91 };
+const uint8_t PROGMEM TRAXXAS_sop_data[] ={ 0xA1, 0x78, 0xDC, 0x3C, 0x9E, 0x82, 0xDC, 0x3C };
+//const uint8_t PROGMEM TRAXXAS_sop_check[]={ 0x97, 0xE5, 0x14, 0x72, 0x7F, 0x1A, 0x14, 0x72 };
+
+const uint8_t PROGMEM TRAXXAS_init_vals[][2] = {
+	//Init from dump
+	{CYRF_0B_PWR_CTRL, 0x00},					// PMU
+	{CYRF_32_AUTO_CAL_TIME, 0x3C},				// Default init value
+	{CYRF_35_AUTOCAL_OFFSET, 0x14},				// Default init value
+	{CYRF_1B_TX_OFFSET_LSB, 0x55},				// Default init value
+	{CYRF_1C_TX_OFFSET_MSB, 0x05},				// Default init value
+	{CYRF_28_CLK_EN, 0x02},						// Force Receive Clock Enable
+	{CYRF_06_RX_CFG, 0x88 | 0x02},				// AGC enabled, Fast Turn Mode enabled, adding overwrite enable to not lockup RX
+	{CYRF_1E_RX_OVERRIDE, 0x08},				// Reject packets with 0 seed
+	{CYRF_03_TX_CFG, 0x08 | CYRF_BIND_POWER},	// 8DR Mode, 32 chip codes
+};
+
+static void __attribute__((unused)) TRAXXAS_cyrf_bind_config()
+{
+	CYRF_PROGMEM_ConfigSOPCode(TRAXXAS_sop_bind);
+	CYRF_WriteRegister(CYRF_15_CRC_SEED_LSB, 0x5A);
+	CYRF_WriteRegister(CYRF_16_CRC_SEED_MSB, 0x5A);
+	CYRF_ConfigRFChannel(TRAXXAS_BIND_CHANNEL);
+}
+
+static void __attribute__((unused)) TRAXXAS_cyrf_data_config()
+{
+	CYRF_PROGMEM_ConfigSOPCode(TRAXXAS_sop_data);
+	#ifdef TRAXXAS_FORCE_ID					// data taken from TX dump
+		CYRF_WriteRegister(CYRF_15_CRC_SEED_LSB, 0x1B);
+		CYRF_WriteRegister(CYRF_16_CRC_SEED_MSB, 0x3F);
+	#else
+		CYRF_WriteRegister(CYRF_15_CRC_SEED_LSB, cyrfmfg_id[0]+0xB6);
+		CYRF_WriteRegister(CYRF_16_CRC_SEED_MSB, cyrfmfg_id[1]+0x5D);
+	#endif
+	CYRF_ConfigRFChannel(TRAXXAS_CHANNEL);
+	CYRF_SetTxRxMode(TX_EN);
+}
+
+static void __attribute__((unused)) TRAXXAS_send_data_packet()
+{
+	packet[0] = 0x01;
+	memset(&packet[1],0x00,TRAXXAS_PACKET_SIZE-1);
+	//Steering
+	uint16_t ch = convert_channel_16b_nolimit(RUDDER,500,1000);
+	packet[2]=ch>>8;
+	packet[3]=ch;
+	//Throttle
+	ch = convert_channel_16b_nolimit(THROTTLE,500,1000);
+	packet[4]=ch>>8;
+	packet[5]=ch;
+	//AUX3
+	ch = convert_channel_16b_nolimit(AILERON,500,1000);
+	packet[6]=ch>>8;
+	packet[7]=ch;
+	//AUX4???
+	ch = convert_channel_16b_nolimit(ELEVATOR,500,1000);
+	packet[12]=ch>>8;
+	packet[13]=ch;
+
+	CYRF_SetPower(0x08);
+	CYRF_WriteDataPacketLen(packet, TRAXXAS_PACKET_SIZE);
+}
+
+uint16_t ReadTRAXXAS()
+{
+	uint8_t status;
+	
+	switch(phase)
+	{
+		case TRAXXAS_BIND_PREP_RX:
+			TRAXXAS_cyrf_bind_config();
+			CYRF_SetTxRxMode(RX_EN);								//Receive mode
+			CYRF_WriteRegister(CYRF_05_RX_CTRL, 0x83);				//Prepare to receive
+			packet_count=100;										//Timeout for RX
+			phase=TRAXXAS_BIND_RX;
+			return 700;
+		case TRAXXAS_BIND_RX:
+			//Read data from RX
+			status = CYRF_ReadRegister(CYRF_07_RX_IRQ_STATUS);
+			if((status & 0x03) == 0x02)  							// RXC=1, RXE=0 then 2nd check is required (debouncing)
+				status |= CYRF_ReadRegister(CYRF_07_RX_IRQ_STATUS);
+			debugln("s=%02X",status);
+			CYRF_WriteRegister(CYRF_07_RX_IRQ_STATUS, 0x80);		// need to set RXOW before data read
+			if((status & 0x07) == 0x02)
+			{ // Data received with no errors
+				len=CYRF_ReadRegister(CYRF_09_RX_COUNT);
+				debugln("L=%02X",len)
+				if(len==TRAXXAS_PACKET_SIZE)
+				{
+					CYRF_ReadDataPacketLen(packet, TRAXXAS_PACKET_SIZE);
+					debug("RX=");
+					for(uint8_t i=0;i<TRAXXAS_PACKET_SIZE;i++)
+						debug(" %02X",packet[i]);
+					debugln("");
+					for(uint8_t i=0;i<6;i++)
+						packet[i+1]=cyrfmfg_id[i];
+					packet[10]=0x01;
+					packet_count=12;
+					CYRF_SetTxRxMode(TX_EN);
+					phase=TRAXXAS_BIND_TX1;
+					return 200;
+				}
+			}
+			if( --packet_count == 0 )
+			{ // Retry RX
+				CYRF_WriteRegister(CYRF_29_RX_ABORT, 0x20);			// Enable RX abort
+				CYRF_WriteRegister(CYRF_0F_XACT_CFG, 0x24);			// Force end state
+				CYRF_WriteRegister(CYRF_29_RX_ABORT, 0x00);			// Disable RX abort
+				if(--bind_counter != 0)
+					phase=TRAXXAS_BIND_PREP_RX;						// Retry receiving bind packet
+				else
+					phase=TRAXXAS_PREP_DATA;						// Abort binding
+			}
+			return 700;
+		case TRAXXAS_BIND_TX1:
+			CYRF_WriteDataPacketLen(packet, TRAXXAS_PACKET_SIZE);
+			debug("P=");
+			for(uint8_t i=0;i<TRAXXAS_PACKET_SIZE;i++)
+				debug(" %02X",packet[i]);
+			debugln("");
+			if(--packet_count==0)	// Switch to normal mode
+				phase=TRAXXAS_PREP_DATA;
+			break;
+		case TRAXXAS_PREP_DATA:
+			BIND_DONE;
+			TRAXXAS_cyrf_data_config();
+			phase++;
+		case TRAXXAS_DATA:
+			TRAXXAS_send_data_packet();
+			break;
+	}
+	return 13940;
+}
+
+uint16_t initTRAXXAS()
+{ 
+	CYRF_Reset();
+
+	//Config CYRF registers
+	for(uint8_t i = 0; i < sizeof(TRAXXAS_init_vals) / 2; i++)	
+		CYRF_WriteRegister(pgm_read_byte_near(&TRAXXAS_init_vals[i][0]), pgm_read_byte_near(&TRAXXAS_init_vals[i][1]));
+
+	//Read CYRF ID
+	CYRF_GetMfgData(cyrfmfg_id);
+	cyrfmfg_id[0]+=RX_num;
+
+	#ifdef TRAXXAS_FORCE_ID					// data taken from TX dump
+		cyrfmfg_id[0]=0x65;					// CYRF MFG ID
+		cyrfmfg_id[1]=0xE2;
+		cyrfmfg_id[2]=0x5E;
+		cyrfmfg_id[3]=0x55;
+		cyrfmfg_id[4]=0x4D;
+		cyrfmfg_id[5]=0xFE;
+	#endif
+
+	if(IS_BIND_IN_PROGRESS)
+	{
+		bind_counter=100;
+		phase = TRAXXAS_BIND_PREP_RX;
+	}
+	else
+		phase = TRAXXAS_PREP_DATA;
+	return 1000;
+}
+
+/*
+Bind phase 1
+CHANNEL:	0x2B
+SOP_CODE:	0x3C	0x37	0xCC	0x91	0xE2	0xF8	0xCC	0x91
+CRC_SEED_LSB:	0x5A
+CRC_SEED_MSB:	0x5A
+RX1:	0x02	0x4A	0xA3	0x2D	0x1A	0x49	0xFE	0x06	0x00	0x00	0x02	0x01	0x06	0x06	0x00	0x00
+TX1:	0x02	0x65	0xE2	0x5E	0x55	0x4D	0xFE	0xEE	0x00	0x00	0x01	0x01	0x06	0x05	0x00	0x00
+Note: RX cyrfmfg_id is 0x4A,0xA3,0x2D,0x1A,0x49,0xFE and TX cyrfmfg_id is 0x65,0xE2,0x5E,0x55,0x4D,0xFE
+
+Bind phase 2 (looks like normal mode?)
+CHANNEL:	0x05
+SOP_CODE:	0xA1	0x78	0xDC	0x3C	0x9E	0x82	0xDC	0x3C
+CRC_SEED_LSB:	0x1B
+CRC_SEED_MSB:	0x3F
+RX2:	0x03	0x4A	0xA3	0x2D	0x1A	0x49	0xFE	0x06	0x00	0x00	0x02	0x01	0x06	0x06	0x00	0x00
+TX2:	0x01	0x65	0x01	0xF4	0x03	0xE7	0x02	0x08	0x00	0x00	0x01	0x01	0x02	0xEE	0x00	0x00
+Note: TX2 is nearly a normal packet at the exception of the 2nd byte equal to cyrfmfg_id[0]
+
+Bind phase 3 (check?)
+CHANNEL:	0x22
+SOP_CODE:	0x97	0xE5	0x14	0x72	0x7F	0x1A	0x14	0x72
+CRC_SEED_LSB:	0xA5
+CRC_SEED_MSB:	0xA5
+RX3:	0x04	0x4A	0xA3	0x2D	0x1A	0x49	0xFE	0x06	0x00	0x00	0x02	0x01	0x06	0x06	0x00	0x00
+
+Switch to normal mode
+CHANNEL: 	0x05
+SOP_CODE:	0xA1	0x78	0xDC	0x3C	0x9E	0x82	0xDC	0x3C
+CRC_SEED_LSB:	0x1B
+CRC_SEED_MSB:	0x3F
+TX3:	0x01	0x00	0x02	0xA8	0x03	0xE7	0x02	0x08	0x00	0x00	0x01	0x01	0x02	0xEE	0x00	0x00
+*/
+#endif
--- a/Multiprotocol/TX_Def.h
+++ b/Multiprotocol/TX_Def.h
@@ -40,11 +40,31 @@
 #define CHANNEL_MAX_125	2047	//	125%
 #define CHANNEL_MIN_125	0		//	125%

+#define CHANNEL_MID		1024
+
 #define CHANNEL_MIN_COMMAND 784		// 1350us
 #define CHANNEL_SWITCH		1104	// 1550us
 #define CHANNEL_MAX_COMMAND 1424	// 1750us

 //Channel definitions
+#define	CH1		0
+#define	CH2		1
+#define	CH3		2
+#define	CH4		3
+#define	CH5		4
+#define	CH6		5
+#define	CH7		6
+#define	CH8		7
+#define	CH9		8
+#define	CH10	9
+#define	CH11	10
+#define	CH12	11
+#define	CH13	12
+#define	CH14	13
+#define	CH15	14
+#define	CH16	15
+
+//Channel order
 #ifdef AETR
 	#define	AILERON  0
 	#define	ELEVATOR 1
@@ -192,20 +212,3 @@
 	#define	THROTTLE 1
 	#define	RUDDER   0
 #endif
-
-#define	CH1		0
-#define	CH2		1
-#define	CH3		2
-#define	CH4		3
-#define	CH5		4
-#define	CH6		5
-#define	CH7		6
-#define	CH8		7
-#define	CH9		8
-#define	CH10	9
-#define	CH11	10
-#define	CH12	11
-#define	CH13	12
-#define	CH14	13
-#define	CH15	14
-#define	CH16	15
--- a/Multiprotocol/Telemetry.ino
+++ b/Multiprotocol/Telemetry.ino
@@ -170,13 +170,40 @@ static void multi_send_status()
 	#endif
 #endif

+#ifdef SCANNER_TELEMETRY
+	void spectrum_scanner_frame()
+	{
+		#if defined MULTI_TELEMETRY
+			multi_send_header(MULTI_TELEMETRY_SCANNER, SCAN_CHANS_PER_PACKET + 1);
+		#else
+			Serial_write(0xAA);						// Telemetry packet
+		#endif
+		Serial_write(pkt[0]);						// start channel
+		for(uint8_t ch = 0; ch < SCAN_CHANS_PER_PACKET; ch++)
+			Serial_write(pkt[ch+1]);				// RSSI power levels
+	}
+#endif
+
+#ifdef FRSKYX_RX_TELEMETRY
+	void frskyx_rx_channels_frame()
+	{
+		#if defined MULTI_TELEMETRY
+				multi_send_header(MULTI_TELEMETRY_RX_CHANNELS, 26);
+		#else
+				Serial_write(0xAA);					// Telemetry packet
+		#endif
+		for (uint8_t i = 0; i < 26; i++)
+			Serial_write(pkt[i]);					// pps, rssi, ch start, ch count, 16x ch data
+	}
+#endif
+
 #ifdef AFHDS2A_FW_TELEMETRY
 	void AFHDSA_short_frame()
 	{
 		#if defined MULTI_TELEMETRY
-			multi_send_header(MULTI_TELEMETRY_AFHDS2A, 29);
+			multi_send_header(pkt[29]==0xAA?MULTI_TELEMETRY_AFHDS2A:MULTI_TELEMETRY_AFHDS2A_AC, 29);
 		#else
-			Serial_write(0xAA);						// Telemetry packet
+			Serial_write(pkt[29]);					// Telemetry packet 0xAA or 0xAC
 		#endif
 		for (uint8_t i = 0; i < 29; i++)			// RSSI value followed by 4*7 bytes of telemetry data
 			Serial_write(pkt[i]);
@@ -996,6 +1023,24 @@ void TelemetryUpdate()
 		}
 	#endif

+	#if defined SCANNER_TELEMETRY
+		if (telemetry_link && protocol == PROTO_SCANNER)
+		{
+			spectrum_scanner_frame();
+			telemetry_link = 0;
+			return;
+		}
+	#endif
+
+	#if defined FRSKYX_RX_TELEMETRY
+		if (telemetry_link && protocol == PROTO_FRSKYX_RX)
+		{
+			frskyx_rx_channels_frame();
+			telemetry_link = 0;
+			return;
+		}
+	#endif
+
 		if((telemetry_link & 1 )&& protocol != PROTO_FRSKYX)
 		{	// FrSkyD + Hubsan + AFHDS2A + Bayang + Cabell + Hitec + Bugs + BugsMini + NCC1701
 			frsky_link_frame();
--- a/Multiprotocol/V761_nrf24l01.ino
+++ b/Multiprotocol/V761_nrf24l01.ino
@@ -0,0 +1,195 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ 
+ Thanks to  Goebish ,Ported  from his deviation firmware
+ */
+
+#if defined(V761_NRF24L01_INO)
+
+#include "iface_nrf24l01.h"
+
+#define V761_PACKET_PERIOD		7060 // Timeout for callback in uSec
+#define V761_INITIAL_WAIT		500
+#define V761_PACKET_SIZE		8
+#define V761_BIND_COUNT			200
+
+//Fx chan management
+#define V761_BIND_FREQ			0x28
+#define V761_RF_NUM_CHANNELS	3
+
+enum 
+   {
+    V761_BIND1 = 0,
+    V761_BIND2,
+    V761_DATA
+   };
+
+static void __attribute__((unused)) V761_set_checksum()
+{
+	uint8_t checksum = packet[0];
+	for(uint8_t i=1; i<V761_PACKET_SIZE-2; i++)
+		checksum += packet[i];
+	if(phase == V761_BIND1)
+	{
+		packet[6] = checksum ^ 0xff;
+		packet[7] = packet[6];
+	}
+	else 
+	{
+		checksum += packet[6];
+		packet[7] = checksum ^ 0xff;
+	}
+}
+
+
+static void __attribute__((unused)) V761_send_packet()
+{
+	if(phase != V761_DATA)
+	{
+		packet[0] = rx_tx_addr[0];
+		packet[1] = rx_tx_addr[1];
+		packet[2] = rx_tx_addr[2];
+		packet[3] = rx_tx_addr[3];  
+		packet[4] = hopping_frequency[1];
+		packet[5] = hopping_frequency[2];
+		if(phase == V761_BIND2) 
+			packet[6] = 0xf0; // ?
+	}
+	else
+	{ 
+		packet[0] = convert_channel_8b(THROTTLE);		// throttle       
+		packet[1] = convert_channel_8b(RUDDER)>>1;		// rudder
+		packet[2] = convert_channel_8b(ELEVATOR)>>1;	// elevator
+		packet[3] = convert_channel_8b(AILERON)>>1;		// aileron
+		packet[5] = (packet_count++ / 3)<<6;
+		packet[4] = (packet[5] == 0x40) ? 0x1a : 0x20;
+
+		// Channel 5 - Gyro mode is packet 5
+		if(CH5_SW)    // Mode Expert Gyro off
+			flags = 0x0c;
+		else
+			if(Channel_data[CH5] < CHANNEL_MIN_COMMAND)
+				flags = 0x08;     // Beginer mode (Gyro on, yaw and pitch rate limited)
+			else
+				flags = 0x0a;     // Mid Mode ( Gyro on no rate limits)        
+		packet[5] |= flags;
+		packet[6] = 0x80; // unknown 
+
+		//packet counter
+		if(packet_count >= 12)
+			packet_count = 0;
+		NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[hopping_frequency_no++]);
+		if(hopping_frequency_no >= V761_RF_NUM_CHANNELS)
+			hopping_frequency_no = 0;
+	}
+	V761_set_checksum();
+	// Power on, TX mode, 2byte CRC
+	XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
+	NRF24L01_FlushTx();
+	XN297_WritePayload(packet, V761_PACKET_SIZE);
+	NRF24L01_SetPower();
+}
+
+static void __attribute__((unused)) V761_init()
+{
+	NRF24L01_Initialize();
+	NRF24L01_SetTxRxMode(TX_EN);
+	NRF24L01_FlushTx();
+	NRF24L01_FlushRx();
+	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);			// No Auto Acknowldgement on all data pipes
+	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);		// Enable data pipe 0 only
+	NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, 0x02);		// set address length (4 bytes)
+	NRF24L01_WriteReg(NRF24L01_04_SETUP_RETR, 0x00);	// no retransmits
+	NRF24L01_SetBitrate(NRF24L01_BR_1M);				// 1Mbps
+	NRF24L01_SetPower();
+	NRF24L01_Activate(0x73);							// Activate feature register
+	NRF24L01_WriteReg(NRF24L01_1C_DYNPD, 0x00);			// Disable dynamic payload length on all pipes
+	NRF24L01_WriteReg(NRF24L01_1D_FEATURE, 0x01);
+	NRF24L01_Activate(0x73);
+}
+
+static void __attribute__((unused)) V761_initialize_txid()
+{
+	// TODO: try arbitrary rx_tx_addr & frequencies (except hopping_frequency[0])
+	switch(RX_num%3)
+	{
+		case 1:	//Dump from air on Protonus TX
+			memcpy(rx_tx_addr,(uint8_t *)"\xE8\xE4\x45\x09",4);
+			memcpy(hopping_frequency,(uint8_t *)"\x0D\x21\x44",3);
+			break;
+		case 2:	//Dump from air on mshagg2 TX
+			memcpy(rx_tx_addr,(uint8_t *)"\xAE\xD1\x45\x09",4);
+			memcpy(hopping_frequency,(uint8_t *)"\x13\x1D\x4A",3);
+			break;
+		default: //Dump from SPI
+			memcpy(rx_tx_addr,(uint8_t *)"\x6f\x2c\xb1\x93",4);
+			memcpy(hopping_frequency,(uint8_t *)"\x14\x1e\x4b",3);
+			break;
+	}
+}
+
+uint16_t V761_callback()
+{
+	switch(phase)
+	{
+		case V761_BIND1:
+			if(bind_counter) 
+				bind_counter--;
+			packet_count ++;
+			NRF24L01_WriteReg(NRF24L01_05_RF_CH, V761_BIND_FREQ);
+			XN297_SetTXAddr((uint8_t*)"\x34\x43\x10\x10", 4);
+			V761_send_packet();
+			if(packet_count >= 20) 
+			{
+				packet_count = 0;
+				phase = V761_BIND2;
+			}
+			return 15730;
+		case V761_BIND2:
+			if(bind_counter) 
+				bind_counter--;
+			packet_count ++;
+			NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[0]);
+			XN297_SetTXAddr(rx_tx_addr, 4);
+			V761_send_packet();
+			if(bind_counter == 0) 
+			{
+				phase = V761_DATA;
+				BIND_DONE;
+			}
+			else if(packet_count >= 20) 
+			{
+				packet_count = 0;
+				phase = V761_BIND1;
+			}
+			return 15730;
+		case V761_DATA:
+			V761_send_packet();
+			break;
+	}
+	return V761_PACKET_PERIOD;
+}
+
+uint16_t initV761(void)
+{
+	BIND_IN_PROGRESS;
+	bind_counter = V761_BIND_COUNT;
+	V761_initialize_txid();
+	phase = V761_BIND1;
+	V761_init();
+	hopping_frequency_no = 0;
+	packet_count = 0;
+	return	V761_INITIAL_WAIT;
+}
+
+#endif
--- a/Multiprotocol/V911S_nrf24l01.ino
+++ b/Multiprotocol/V911S_nrf24l01.ino
@@ -16,7 +16,7 @@

 #if defined(V911S_NRF24L01_INO)

-#include "iface_nrf24l01.h"
+#include "iface_xn297l.h"

 //#define V911S_ORIGINAL_ID

@@ -75,35 +75,25 @@ static void __attribute__((unused)) V911S_send_packet(uint8_t bind)
 		packet[12] = ch>>5;
 	}
 	
-	// Power on, TX mode, 2byte CRC
-	XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
 	if (!bind)
 	{
-		NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[channel]);
+		XN297L_Hopping(channel);
 		hopping_frequency_no++;
 		hopping_frequency_no&=7;	// 8 RF channels
 	}
-	// clear packet status bits and TX FIFO
-	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
-	NRF24L01_FlushTx();
-	XN297_WritePayload(packet, V911S_PACKET_SIZE);

-	NRF24L01_SetPower();	// Set tx_power
+	XN297L_WritePayload(packet, V911S_PACKET_SIZE);
+
+	XN297L_SetPower();				// Set tx_power
+	XN297L_SetFreqOffset();			// Set frequency offset
 }

 static void __attribute__((unused)) V911S_init()
 {
-	NRF24L01_Initialize();
-	NRF24L01_SetTxRxMode(TX_EN);
-	XN297_SetTXAddr((uint8_t *)"\x4B\x4E\x42\x4E\x44", 5);			// Bind address
-	NRF24L01_WriteReg(NRF24L01_05_RF_CH, V911S_RF_BIND_CHANNEL);	// Bind channel
-	NRF24L01_FlushTx();
-	NRF24L01_FlushRx();
-	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);	// Clear data ready, data sent, and retransmit
-	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);		// No Auto Acknowldgement on all data pipes
-	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);	// Enable data pipe 0 only
-	NRF24L01_SetBitrate(NRF24L01_BR_250K);			// 250Kbps
-	NRF24L01_SetPower();
+	XN297L_Init();
+	XN297L_SetTXAddr((uint8_t *)"KNBND",5);			// Bind address
+	XN297L_HoppingCalib(V911S_NUM_RF_CHANNELS);		// Calibrate all channels
+	XN297L_RFChannel(V911S_RF_BIND_CHANNEL);		// Set bind channel
 }

 static void __attribute__((unused)) V911S_initialize_txid()
--- a/Multiprotocol/Validate.h
+++ b/Multiprotocol/Validate.h
@@ -18,10 +18,10 @@
 	#endif
 #endif

-// Check for minimum version of multi-module boards
-#define MIN_AVR_BOARD 103
-#define MIN_ORX_BOARD 103
-#define MIN_STM32_BOARD 104
+// Check for minimum board file definition version for DIY multi-module boards
+#define MIN_AVR_BOARD 109
+#define MIN_ORX_BOARD 109
+#define MIN_STM32_BOARD 116
 //AVR
 #if (defined(ARDUINO_MULTI_NO_BOOT) && ARDUINO_MULTI_NO_BOOT < MIN_AVR_BOARD) || (defined(ARDUINO_MULTI_FLASH_FROM_TX) && ARDUINO_MULTI_FLASH_FROM_TX < MIN_AVR_BOARD)
 	#error You need to update your Multi 4-in-1 board definition.  Open Boards Manager and update to the latest version of the Multi 4-in-1 AVR Boards.
@@ -35,6 +35,11 @@
 	#error You need to update your Multi 4-in-1 board definition.  Open Boards Manager and update to the latest version of the Multi 4-in-1 STM32 Board.
 #endif

+// Enable serial debugging if a debugging option was chosen in the IDE
+#ifdef ARDUINO_MULTI_DEBUG
+	#define DEBUG_SERIAL
+#endif
+
 // Error if CHECK_FOR_BOOTLOADER is not enabled but a FLASH_FROM_TX board is selected
 #if (defined(ARDUINO_MULTI_FLASH_FROM_TX) || defined(ARDUINO_MULTI_STM32_FLASH_FROM_TX)) &! defined(CHECK_FOR_BOOTLOADER)
 	#if defined(STM32_BOARD)
@@ -44,9 +49,10 @@
 	#endif
 #endif

-// Error if CHECK_FOR_BOOTLOADER is enabled but the 'Flash from TX' bootloader
+// Warning if CHECK_FOR_BOOTLOADER is enabled but no bootloader
 #if defined(ARDUINO_MULTI_NO_BOOT) && defined(CHECK_FOR_BOOTLOADER)
-	#error "You have enabled CHECK_FOR_BOOTLOADER but not selected the 'Flash from TX' bootloader."
+	#undef CHECK_FOR_BOOTLOADER
+	#warning "Disabling CHECK_FOR_BOOTLOADER since no bootloader is selected."
 #endif

 //Check number of banks
@@ -62,6 +68,12 @@
 #endif

 // Check forced tuning values are valid
+//CC2500
+#ifdef FORCE_CORONA_TUNING
+	#if ( FORCE_CORONA_TUNING < -127 ) || ( FORCE_CORONA_TUNING > 127 )
+		#error "The CORONA forced frequency tuning value is outside of the range -127..127."
+	#endif
+#endif
 #ifdef FORCE_FRSKYD_TUNING
 	#if ( FORCE_FRSKYD_TUNING < -127 ) || ( FORCE_FRSKYD_TUNING > 127 )
 		#error "The FrSkyD forced frequency tuning value is outside of the range -127..127."
@@ -77,19 +89,30 @@
 		#error "The FrSkyX forced frequency tuning value is outside of the range -127..127."
 	#endif
 #endif
+#ifdef FORCE_HITEC_TUNING
+	#if ( FORCE_HITEC_TUNING < -127 ) || ( FORCE_HITEC_TUNING > 127 )
+		#error "The HITEC forced frequency tuning value is outside of the range -127..127."
+	#endif
+#endif
+#ifdef FORCE_REDPINE_TUNING
+	#if ( FORCE_REDPINE_TUNING < -127 ) || ( FORCE_REDPINE_TUNING > 127 )
+		#error "The REDPINE forced frequency tuning value is outside of the range -127..127."
+	#endif
+#endif
 #ifdef FORCE_SFHSS_TUNING
 	#if ( FORCE_SFHSS_TUNING < -127 ) || ( FORCE_SFHSS_TUNING > 127 )
 		#error "The SFHSS forced frequency tuning value is outside of the range -127..127."
 	#endif
 #endif
-#ifdef FORCE_CORONA_TUNING
-	#if ( FORCE_CORONA_TUNING < -127 ) || ( FORCE_CORONA_TUNING > 127 )
-		#error "The CORONA forced frequency tuning value is outside of the range -127..127."
+//A7105
+#ifdef FORCE_AFHDS2A_TUNING
+	#if ( FORCE_AFHDS2A_TUNING < -300 ) || ( FORCE_AFHDS2A_TUNING > 300 )
+		#error "The AFHDS2A forced frequency tuning value is outside of the range -300..300."
 	#endif
 #endif
-#ifdef FORCE_HITEC_TUNING
-	#if ( FORCE_HITEC_TUNING < -127 ) || ( FORCE_HITEC_TUNING > 127 )
-		#error "The HITEC forced frequency tuning value is outside of the range -127..127."
+#ifdef FORCE_BUGS_TUNING
+	#if ( FORCE_BUGS_TUNING < -300 ) || ( FORCE_BUGS_TUNING > 300 )
+		#error "The BUGS forced frequency tuning value is outside of the range -300..300."
 	#endif
 #endif
 #ifdef FORCE_FLYSKY_TUNING
@@ -97,20 +120,27 @@
 		#error "The Flysky forced frequency tuning value is outside of the range -300..300."
 	#endif
 #endif
+#ifdef FORCE_FLYZONE_TUNING
+	#if ( FORCE_FLYZONE_TUNING < -300 ) || ( FORCE_FLYZONE_TUNING > 300 )
+		#error "The Flyzone forced frequency tuning value is outside of the range -300..300."
+	#endif
+#endif
 #ifdef FORCE_HUBSAN_TUNING
 	#if ( FORCE_HUBSAN_TUNING < -300 ) || ( FORCE_HUBSAN_TUNING > 300 )
 		#error "The Hubsan forced frequency tuning value is outside of the range -300..300."
 	#endif
 #endif
-#ifdef FORCE_AFHDS2A_TUNING
-	#if ( FORCE_AFHDS2A_TUNING < -300 ) || ( FORCE_AFHDS2A_TUNING > 300 )
-		#error "The AFHDS2A forced frequency tuning value is outside of the range -300..300."
-	#endif
-#endif
+
 #ifndef USE_A7105_CH15_TUNING
+	#ifndef FORCE_BUGS_TUNING
+		#define FORCE_BUGS_TUNING 0
+	#endif
 	#ifndef FORCE_FLYSKY_TUNING
 		#define FORCE_FLYSKY_TUNING 0
 	#endif
+	#ifndef FORCE_FLYZONE_TUNING
+		#define FORCE_FLYZONE_TUNING 0
+	#endif
 	#ifndef FORCE_HUBSAN_TUNING
 		#define FORCE_HUBSAN_TUNING 0
 	#endif
@@ -119,6 +149,10 @@
 	#endif
 #endif

+#if defined (USE_CYRF6936_CH15_TUNING) && (DSM_THROTTLE_KILL_CH == 15)
+	#error "Error Channel 15 conflict between the CYRF6936 freq tuning and the DSM throttle kill feature."
+#endif
+
 //Change/Force configuration if OrangeTX
 #ifdef ORANGE_TX
 	#undef ENABLE_PPM			// Disable PPM for OrangeTX module
@@ -139,6 +173,7 @@
 	#undef HUBSAN_A7105_INO
 	#undef AFHDS2A_A7105_INO
 	#undef BUGS_A7105_INO
+	#undef FLYZONE_A7105_INO
 #endif
 #ifndef CYRF6936_INSTALLED
 	#undef	DEVO_CYRF6936_INO
@@ -146,7 +181,7 @@
 	#undef	J6PRO_CYRF6936_INO
 	#undef	WFLY_CYRF6936_INO
 	#undef	WK2x01_CYRF6936_INO
-	#undef TRAXXAS_CYRF6936_INO
+	#undef	TRAXXAS_CYRF6936_INO
 #endif
 #ifndef CC2500_INSTALLED
 	#undef	FRSKYD_CC2500_INO
@@ -154,7 +189,11 @@
 	#undef	FRSKYX_CC2500_INO
 	#undef	SFHSS_CC2500_INO
 	#undef	CORONA_CC2500_INO
+	#undef	REDPINE_CC2500_INO
 	#undef	HITEC_CC2500_INO
+	#undef	XN297L_CC2500_EMU
+	#undef	SCANNER_CC2500_INO
+	#undef	FRSKYX_RX_CC2500_INO
 #endif
 #ifndef NRF24L01_INSTALLED
 	#undef	BAYANG_NRF24L01_INO
@@ -162,6 +201,7 @@
 	#undef	CX10_NRF24L01_INO
 	#undef	ESKY_NRF24L01_INO
 	#undef	HISKY_NRF24L01_INO
+	#undef	KF606_NRF24L01_INO
 	#undef	KN_NRF24L01_INO
 	#undef	SLT_NRF24L01_INO
 	#undef	SYMAX_NRF24L01_INO
@@ -185,7 +225,11 @@
 	#undef	BUGSMINI_NRF24L01_INO
 	#undef	NCC1701_NRF24L01_INO
 	#undef	E01X_NRF24L01_INO
+	#undef	V761_NRF24L01_INO
 	#undef	V911S_NRF24L01_INO
+	#undef	XN297L_CC2500_EMU
+	#undef	POTENSIC_NRF24L01_INO
+	#undef	ZSX_NRF24L01_INO
 #endif

 //Make sure telemetry is selected correctly
@@ -206,9 +250,21 @@
 	#undef DSM_TELEMETRY
 	#undef MULTI_STATUS
 	#undef MULTI_TELEMETRY
+	#undef SCANNER_TELEMETRY
+	#undef SCANNER_CC2500_INO
+	#undef FRSKYX_RX_TELEMETRY
+	#undef FRSKYX_RX_CC2500_INO
 #else
-	#if defined MULTI_TELEMETRY && not defined INVERT_TELEMETRY
-		#warning MULTI_TELEMETRY has been defined but not INVERT_TELEMETRY. They should be both enabled for OpenTX telemetry and status to work.
+	#if defined(MULTI_TELEMETRY) && defined(MULTI_STATUS)
+		#error You should choose either MULTI_TELEMETRY or MULTI_STATUS but not both.
+	#endif
+	#if not defined(SCANNER_CC2500_INO) || not defined(SCANNER_TELEMETRY)
+		#undef SCANNER_TELEMETRY
+		#undef SCANNER_CC2500_INO
+	#endif
+	#if not defined(FRSKYX_RX_CC2500_INO) || not defined(FRSKYX_RX_TELEMETRY)
+		#undef FRSKYX_RX_TELEMETRY
+		#undef FRSKYX_RX_CC2500_INO
 	#endif
 	#if not defined(BAYANG_NRF24L01_INO)
 		#undef BAYANG_HUB_TELEMETRY
@@ -216,7 +272,7 @@
 	#if not defined(NCC1701_NRF24L01_INO)
 		#undef NCC1701_HUB_TELEMETRY
 	#endif
-	#if not ( defined(BUGS_A7105_INO) || defined(BUGSMINI_NRF24L01_INO) )
+	#if not defined(BUGS_A7105_INO) && not defined(BUGSMINI_NRF24L01_INO)
 		#undef BUGS_HUB_TELEMETRY
 	#endif
 	#if not defined(CABELL_NRF24L01_INO)
@@ -249,7 +305,7 @@
 	#if not defined(DSM_CYRF6936_INO)
 		#undef DSM_TELEMETRY
 	#endif
-	#if not defined(DSM_TELEMETRY) && not defined(SPORT_TELEMETRY) && not defined(HUB_TELEMETRY) && not defined(HUBSAN_HUB_TELEMETRY) && not defined(BUGS_HUB_TELEMETRY) && not defined(NCC1701_HUB_TELEMETRY) && not defined(BAYANG_HUB_TELEMETRY) && not defined(CABELL_HUB_TELEMETRY) && not defined(AFHDS2A_HUB_TELEMETRY) && not defined(AFHDS2A_FW_TELEMETRY) && not defined(MULTI_TELEMETRY) && not defined(MULTI_STATUS) && not defined(HITEC_HUB_TELEMETRY) && not defined(HITEC_FW_TELEMETRY)
+	#if not defined(DSM_TELEMETRY) && not defined(SPORT_TELEMETRY) && not defined(HUB_TELEMETRY) && not defined(HUBSAN_HUB_TELEMETRY) && not defined(BUGS_HUB_TELEMETRY) && not defined(NCC1701_HUB_TELEMETRY) && not defined(BAYANG_HUB_TELEMETRY) && not defined(CABELL_HUB_TELEMETRY) && not defined(AFHDS2A_HUB_TELEMETRY) && not defined(AFHDS2A_FW_TELEMETRY) && not defined(MULTI_TELEMETRY) && not defined(MULTI_STATUS) && not defined(HITEC_HUB_TELEMETRY) && not defined(HITEC_FW_TELEMETRY) && not defined(SCANNER_TELEMETRY) && not defined(FRSKYX_RX_TELEMETRY)
 		#undef TELEMETRY
 		#undef INVERT_TELEMETRY
 		#undef SPORT_POLLING
@@ -303,3 +359,7 @@
 #if MAX_PPM_CHANNELS>16
 	#error MAX_PPM_CHANNELS must be below or equal to 16. The default for this value is 16.
 #endif
+
+#if defined (STM32_BOARD) && defined (DEBUG_SERIAL) && defined (NRF24L01_INSTALLED)
+	#define XN297DUMP_NRF24L01_INO
+#endif
--- a/Multiprotocol/WFLY_cyrf6936.ino
+++ b/Multiprotocol/WFLY_cyrf6936.ino
@@ -253,7 +253,7 @@ uint16_t initWFLY()
 		rx_tx_addr[2]=0xBF;					// ID
 		rx_tx_addr[3]=0x13;					// ID
 		ch=0x16;							// value seen between 0x0A and 0x17
-		rc_ch_num=0x15						// RF channel to send the current hopping table
+		rf_ch_num=0x15						// RF channel to send the current hopping table
 	#endif

 	debug("ID:")
--- a/Multiprotocol/XN297Dump_nrf24l01.ino
+++ b/Multiprotocol/XN297Dump_nrf24l01.ino
@@ -0,0 +1,288 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// sub_protocol: 0=250Kbps, 1=1Mbps, 2=2Mbps. Other values default to 1Mbps.
+// RX_num = address length 3 or 4 or 5. Other values default to 5.
+// option = RF channel number 0..84 and -1 = scan all channels. Other values default to RF channel 0.
+
+#ifdef XN297DUMP_NRF24L01_INO
+
+#include "iface_nrf24l01.h"
+
+// Parameters which can be modified
+#define XN297DUMP_PERIOD_SCAN		50000 	// 25000
+#define XN297DUMP_MAX_RF_CHANNEL	84		// Default 84
+
+// Do not touch from there
+#define XN297DUMP_INITIAL_WAIT		500
+#define XN297DUMP_MAX_PACKET_LEN	32
+#define XN297DUMP_CRC_LENGTH		2
+
+uint8_t address_length;
+uint16_t timeH=0;
+boolean scramble;
+
+static void __attribute__((unused)) XN297Dump_init()
+{
+	NRF24L01_Initialize();
+	NRF24L01_SetTxRxMode(RX_EN);
+
+	NRF24L01_FlushTx();
+	NRF24L01_FlushRx();
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);			// Clear data ready, data sent, and retransmit
+	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);				// No Auto Acknowledgment on all data pipes
+	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);			// Enable data pipe 0 only
+	NRF24L01_WriteReg(NRF24L01_03_SETUP_AW, 0x01);			// 3 bytes RX/TX address
+	NRF24L01_WriteRegisterMulti(NRF24L01_0A_RX_ADDR_P0, (uint8_t*)"\x55\x0F\x71", 3);	// set up RX address to xn297 preamble
+	NRF24L01_WriteReg(NRF24L01_11_RX_PW_P0, XN297DUMP_MAX_PACKET_LEN);	// Enable rx pipe 0
+
+	debug("XN297 dump, address length=%d, speed=",address_length);
+	switch(sub_protocol)
+	{
+		case 0:
+			NRF24L01_SetBitrate(NRF24L01_BR_250K);
+			debugln("250K");
+			break;
+		case 2:
+			NRF24L01_SetBitrate(NRF24L01_BR_2M);
+			debugln("2M");
+			break;
+		default:
+			NRF24L01_SetBitrate(NRF24L01_BR_1M);
+			debugln("1M");
+			break;
+
+	}
+    NRF24L01_Activate(0x73);								// Activate feature register
+    NRF24L01_WriteReg(NRF24L01_1C_DYNPD, 0x00);				// Disable dynamic payload length on all pipes
+    NRF24L01_WriteReg(NRF24L01_1D_FEATURE, 0x01);
+    NRF24L01_Activate(0x73);
+	NRF24L01_SetPower();
+}
+
+static boolean __attribute__((unused)) XN297Dump_process_packet(void)
+{
+	uint16_t crcxored;
+	uint8_t packet_sc[XN297DUMP_MAX_PACKET_LEN], packet_un[XN297DUMP_MAX_PACKET_LEN];
+	// init crc
+	crc = 0xb5d2;
+	
+	//Try normal payload
+	// address
+	for (uint8_t i = 0; i < address_length; i++)
+	{
+		crc = crc16_update(crc, packet[i], 8);
+		packet_un[address_length-1-i]=packet[i];
+		packet_sc[address_length-1-i]=packet[i] ^ xn297_scramble[i];
+	}
+	
+	// payload
+	for (uint8_t i = address_length; i < XN297DUMP_MAX_PACKET_LEN-XN297DUMP_CRC_LENGTH; i++)
+	{
+		crc = crc16_update(crc, packet[i], 8);
+		packet_sc[i] = bit_reverse(packet[i]^xn297_scramble[i]);
+		packet_un[i] = bit_reverse(packet[i]);
+		// check crc
+		crcxored = crc ^ pgm_read_word(&xn297_crc_xorout[i+1 - 3]);
+		if( (crcxored >> 8) == packet[i + 1] && (crcxored & 0xff) == packet[i + 2])
+		{
+			packet_length=i+1;
+			memcpy(packet,packet_un,packet_length);
+			scramble=false;
+			return true;
+		}
+		crcxored = crc ^ pgm_read_word(&xn297_crc_xorout_scrambled[i+1 - 3]);
+		if( (crcxored >> 8) == packet[i + 1] && (crcxored & 0xff) == packet[i + 2])
+		{
+			packet_length=i+1;
+			memcpy(packet,packet_sc,packet_length);
+			scramble=true;
+			return true;
+		}
+	}
+
+	//Try enhanced payload
+	crc = 0xb5d2;
+	packet_length=0;
+	uint16_t crc_enh;
+	for (uint8_t i = 0; i < XN297DUMP_MAX_PACKET_LEN-XN297DUMP_CRC_LENGTH; i++)
+	{
+		packet_sc[i]=packet[i]^xn297_scramble[i];
+		crc = crc16_update(crc, packet[i], 8);
+		crc_enh = crc16_update(crc, packet[i+1] & 0xC0, 2);
+		crcxored=(packet[i+1]<<10)|(packet[i+2]<<2)|(packet[i+3]>>6) ;
+		if((crc_enh ^ pgm_read_word(&xn297_crc_xorout_scrambled_enhanced[i - 3])) == crcxored)
+		{ // Found a valid CRC for the enhanced payload mode
+			packet_length=i;
+			scramble=true;
+			i++;
+			packet_sc[i]=packet[i]^xn297_scramble[i];
+			memcpy(packet_un,packet_sc,packet_length+2); // unscramble packet
+			break;
+		}
+		if((crc_enh ^ pgm_read_word(&xn297_crc_xorout_enhanced[i - 3])) == crcxored)
+		{ // Found a valid CRC for the enhanced payload mode
+			packet_length=i;
+			scramble=false;
+			memcpy(packet_un,packet,packet_length+2); 	// packet is unscrambled
+			break;
+		}
+	}
+	if(packet_length!=0)
+	{ // Found a valid CRC for the enhanced payload mode
+		debug("Enhanced ");
+		//check selected address length
+		if((packet_un[address_length]>>1)!=packet_length-address_length)
+		{
+			for(uint8_t i=3;i<=5;i++)
+				if((packet_un[i]>>1)==packet_length-i)
+					address_length=i;
+			debug("Wrong address length selected using %d ", address_length )
+		}
+		debug("pid=%d ",((packet_un[address_length]&0x01)<<1)|(packet_un[address_length+1]>>7));
+		debug("ack=%d ",(packet_un[address_length+1]>>6)&0x01);
+		// address
+		for (uint8_t i = 0; i < address_length; i++)
+			packet[address_length-1-i]=packet_un[i];
+		// payload
+		for (uint8_t i = address_length; i < packet_length; i++)
+			packet[i] = bit_reverse((packet_un[i+1]<<2)|(packet_un[i+2]>>6));
+		return true;
+	}
+
+	return false;
+}
+
+static void __attribute__((unused)) XN297Dump_overflow()
+{
+	if(TIMER2_BASE->SR & TIMER_SR_UIF)
+	{ // timer overflow
+		timeH++;
+		TIMER2_BASE->SR = 0x1E5F & ~TIMER_SR_UIF;	// Clear Timer2 overflow flag
+	}
+}
+static uint16_t XN297Dump_callback()
+{
+	static uint32_t time=0;
+	while(1)
+	{
+		if(option==0xFF && bind_counter>XN297DUMP_PERIOD_SCAN)
+		{	// Scan frequencies
+			hopping_frequency_no++;
+			bind_counter=0;
+		}
+		if(hopping_frequency_no!=rf_ch_num)
+		{	// Channel has changed
+			if(hopping_frequency_no>XN297DUMP_MAX_RF_CHANNEL)
+				hopping_frequency_no=0;	// Invalid channel 0 by default
+			rf_ch_num=hopping_frequency_no;
+			debugln("Channel=%d,0x%02X",hopping_frequency_no,hopping_frequency_no)
+			NRF24L01_WriteReg(NRF24L01_05_RF_CH,hopping_frequency_no);
+			// switch to RX mode
+			NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);			// Clear data ready, data sent, and retransmit
+			NRF24L01_SetTxRxMode(TXRX_OFF);
+			NRF24L01_SetTxRxMode(RX_EN);
+			NRF24L01_FlushRx();
+			NRF24L01_WriteReg(NRF24L01_00_CONFIG, (0 << NRF24L01_00_EN_CRC)   // switch to RX mode and disable CRC
+											| (1 << NRF24L01_00_CRCO)
+											| (1 << NRF24L01_00_PWR_UP)
+											| (1 << NRF24L01_00_PRIM_RX));
+			phase=0;				// init timer
+		}
+		XN297Dump_overflow();
+		
+		if( NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR))
+		{ // RX fifo data ready
+			if(NRF24L01_ReadReg(NRF24L01_09_CD) || option != 0xFF)
+			{
+				NRF24L01_ReadPayload(packet,XN297DUMP_MAX_PACKET_LEN);
+				XN297Dump_overflow();
+				uint16_t timeL=TCNT1;
+				if(TIMER2_BASE->SR & TIMER_SR_UIF)
+				{//timer just rolled over...
+					XN297Dump_overflow();
+					timeL=0;
+				}
+				if(phase==0)
+				{
+					phase=1;
+					time=0;
+				}
+				else
+					time=(timeH<<16)+timeL-time;
+				debug("RX: %5luus C=%d ", time>>1 , hopping_frequency_no);
+				time=(timeH<<16)+timeL;
+				if(XN297Dump_process_packet())
+				{ // valid crc found
+					debug("S=%c A=",scramble?'Y':'N');
+					for(uint8_t i=0; i<address_length; i++)
+					{
+						debug(" %02X",packet[i]);
+					}
+					debug(" P(%d)=",packet_length-address_length);
+					for(uint8_t i=address_length; i<packet_length; i++)
+					{
+						debug(" %02X",packet[i]);
+					}
+					debugln("");
+				}
+				else
+				{
+					debugln("Bad CRC");
+				}
+			}
+			
+			XN297Dump_overflow();
+			// restart RX mode
+			NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);			// Clear data ready, data sent, and retransmit
+			NRF24L01_SetTxRxMode(TXRX_OFF);
+			NRF24L01_SetTxRxMode(RX_EN);
+			NRF24L01_FlushRx();
+			NRF24L01_WriteReg(NRF24L01_00_CONFIG, (0 << NRF24L01_00_EN_CRC)   // switch to RX mode and disable CRC
+											| (1 << NRF24L01_00_CRCO)
+											| (1 << NRF24L01_00_PWR_UP)
+											| (1 << NRF24L01_00_PRIM_RX));
+			XN297Dump_overflow();
+		}
+		bind_counter++;
+		if(IS_RX_FLAG_on)					// Let the radio update the protocol
+		{
+			if(Update_All()) return 10000;	// New protocol selected
+			if(prev_option!=option)
+			{	// option has changed
+				hopping_frequency_no=option;
+				prev_option=option;
+			}
+		}
+		XN297Dump_overflow();
+	}
+	return 100;
+}
+
+uint16_t initXN297Dump(void)
+{
+	BIND_DONE;
+	address_length=RX_num;
+	if(address_length<3||address_length>5)
+		address_length=5;	//default
+	XN297Dump_init();
+	bind_counter=0;
+	rf_ch_num=0xFF;
+	prev_option=option^0x55;
+	phase=0;				// init timer
+	return XN297DUMP_INITIAL_WAIT;
+}
+
+#endif
--- a/Multiprotocol/XN297L_EMU.ino
+++ b/Multiprotocol/XN297L_EMU.ino
@@ -0,0 +1,223 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "iface_xn297l.h"
+
+#if defined (XN297L_CC2500_EMU)
+static void __attribute__((unused)) XN297L_Init()
+{
+	PE1_off; // antenna RF2
+	PE2_on;
+	CC2500_Reset();
+	CC2500_Strobe(CC2500_SIDLE);
+
+	// Address Config = No address check
+	// Base Frequency = 2400
+	// CRC Autoflush = false
+	// CRC Enable = false
+	// Channel Spacing = 333.251953
+	// Data Format = Normal mode
+	// Data Rate = 249.939
+	// Deviation = 126.953125
+	// Device Address = 0
+	// Manchester Enable = false
+	// Modulated = true
+	// Modulation Format = GFSK
+	// Packet Length Mode = Variable packet length mode. Packet length configured by the first byte after sync word
+	// RX Filter BW = 203.125000
+	// Sync Word Qualifier Mode = No preamble/sync
+	// TX Power = 0
+	// Whitening = false
+	// Fast Frequency Hopping - no PLL auto calibration
+
+	CC2500_WriteReg(CC2500_08_PKTCTRL0,	0x01);   // Packet Automation Control
+	CC2500_WriteReg(CC2500_0B_FSCTRL1,	0x0A);   // Frequency Synthesizer Control
+	CC2500_WriteReg(CC2500_0C_FSCTRL0, option);  // Frequency offset hack 
+	CC2500_WriteReg(CC2500_0D_FREQ2,	0x5C);   // Frequency Control Word, High Byte
+	CC2500_WriteReg(CC2500_0E_FREQ1,	0x4E);   // Frequency Control Word, Middle Byte
+	CC2500_WriteReg(CC2500_0F_FREQ0,	0xC3);   // Frequency Control Word, Low Byte
+	CC2500_WriteReg(CC2500_10_MDMCFG4,	0x8D);   // Modem Configuration
+	CC2500_WriteReg(CC2500_11_MDMCFG3,	0x3B);   // Modem Configuration
+	CC2500_WriteReg(CC2500_12_MDMCFG2,	0x10);   // Modem Configuration
+	CC2500_WriteReg(CC2500_13_MDMCFG1,	0x23);   // Modem Configuration
+	CC2500_WriteReg(CC2500_14_MDMCFG0,	0xA4);   // Modem Configuration
+	CC2500_WriteReg(CC2500_15_DEVIATN,	0x62);   // Modem Deviation Setting
+	CC2500_WriteReg(CC2500_18_MCSM0,	0x08);   // Main Radio Control State Machine Configuration
+	CC2500_WriteReg(CC2500_19_FOCCFG,	0x1D);   // Frequency Offset Compensation Configuration
+	CC2500_WriteReg(CC2500_1A_BSCFG,	0x1C);   // Bit Synchronization Configuration
+	CC2500_WriteReg(CC2500_1B_AGCCTRL2, 0xC7);   // AGC Control
+	CC2500_WriteReg(CC2500_1C_AGCCTRL1, 0x00);   // AGC Control
+	CC2500_WriteReg(CC2500_1D_AGCCTRL0, 0xB0);   // AGC Control
+	CC2500_WriteReg(CC2500_21_FREND1,	0xB6);   // Front End RX Configuration
+	CC2500_WriteReg(CC2500_23_FSCAL3,	0xEA);   // Frequency Synthesizer Calibration
+	CC2500_WriteReg(CC2500_25_FSCAL1,	0x00);   // Frequency Synthesizer Calibration
+	CC2500_WriteReg(CC2500_26_FSCAL0,	0x11);   // Frequency Synthesizer Calibration
+
+	CC2500_SetTxRxMode(TX_EN);
+	CC2500_SetPower();
+	xn297_scramble_enabled=XN297_SCRAMBLED;	//enabled by default
+}
+
+static void __attribute__((unused)) XN297L_SetTXAddr(const uint8_t* addr, uint8_t len)
+{
+	if (len > 5) len = 5;
+	if (len < 3) len = 3;
+	xn297_addr_len = len;
+	memcpy(xn297_tx_addr, addr, len);
+}
+
+static void __attribute__((unused)) XN297L_WritePayload(uint8_t* msg, uint8_t len)
+{
+	uint8_t buf[32];
+	uint8_t last = 0;
+	uint8_t i;
+	static const uint16_t initial = 0xb5d2;
+
+	// address
+	for (i = 0; i < xn297_addr_len; ++i)
+	{
+		buf[last] = xn297_tx_addr[xn297_addr_len - i - 1];
+		if(xn297_scramble_enabled)
+			buf[last] ^=  xn297_scramble[i];
+		last++;
+	}
+
+	// payload
+	for (i = 0; i < len; ++i) {
+		// bit-reverse bytes in packet
+		buf[last] = bit_reverse(msg[i]);
+		if(xn297_scramble_enabled)
+			buf[last] ^= xn297_scramble[xn297_addr_len+i];
+		last++;
+	}
+
+	// crc
+	uint16_t crc = initial;
+	for (uint8_t i = 0; i < last; ++i)
+		crc = crc16_update(crc, buf[i], 8);
+	if(xn297_scramble_enabled)
+		crc ^= pgm_read_word(&xn297_crc_xorout_scrambled[xn297_addr_len - 3 + len]);
+	else
+		crc ^= pgm_read_word(&xn297_crc_xorout[xn297_addr_len - 3 + len]);
+	buf[last++] = crc >> 8;
+	buf[last++] = crc & 0xff;
+
+	// stop TX/RX
+	CC2500_Strobe(CC2500_SIDLE);
+	// flush tx FIFO
+	CC2500_Strobe(CC2500_SFTX);
+	// packet length
+	CC2500_WriteReg(CC2500_3F_TXFIFO, last + 3);
+	// xn297L preamble
+	CC2500_WriteRegisterMulti(CC2500_3F_TXFIFO, (uint8_t*)"\x71\x0f\x55", 3);
+	// xn297 packet
+	CC2500_WriteRegisterMulti(CC2500_3F_TXFIFO, buf, last);
+	// transmit
+	CC2500_Strobe(CC2500_STX);
+}
+
+static void __attribute__((unused)) XN297L_HoppingCalib(uint8_t num_freq)
+{	//calibrate hopping frequencies
+	for (uint8_t i = 0; i < num_freq; i++)
+	{
+		CC2500_Strobe(CC2500_SIDLE);
+		CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[i]*3);
+		CC2500_Strobe(CC2500_SCAL);
+		delayMicroseconds(900);
+		calData[i]=CC2500_ReadReg(CC2500_25_FSCAL1);
+	}
+}
+
+static void __attribute__((unused)) XN297L_Hopping(uint8_t index)
+{
+	// spacing is 333.25 kHz, must multiply xn297 channel by 3
+	CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[index] * 3);
+	// set PLL calibration
+	CC2500_WriteReg(CC2500_25_FSCAL1, calData[index]);
+}
+
+static void __attribute__((unused)) XN297L_RFChannel(uint8_t number)
+{	//change channel
+	CC2500_Strobe(CC2500_SIDLE);
+	CC2500_WriteReg(CC2500_0A_CHANNR, number*3);
+	CC2500_Strobe(CC2500_SCAL);
+	delayMicroseconds(900);
+}
+
+static void __attribute__((unused)) XN297L_SetPower()
+{
+	CC2500_SetPower();
+}
+
+static void __attribute__((unused)) XN297L_SetFreqOffset()
+{	// Frequency offset
+	if (prev_option != option)
+	{
+		prev_option = option;
+		CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
+	}
+}
+
+#elif defined (NRF24L01_INSTALLED)
+
+static void __attribute__((unused)) XN297L_Init()
+{
+	NRF24L01_Initialize();
+	NRF24L01_SetTxRxMode(TX_EN);
+	NRF24L01_FlushTx();
+	NRF24L01_FlushRx();
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);	// Clear data ready, data sent, and retransmit
+	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);		// No Auto Acknowldgement on all data pipes
+	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);	// Enable data pipe 0 only
+	NRF24L01_SetBitrate(NRF24L01_BR_250K);			// 250Kbps
+	NRF24L01_SetPower();
+}
+
+static void __attribute__((unused)) XN297L_SetTXAddr(const uint8_t* addr, uint8_t len)
+{
+	XN297_SetTXAddr(addr,len);
+}
+
+static void __attribute__((unused)) XN297L_WritePayload(uint8_t* msg, uint8_t len)
+{
+	XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
+	NRF24L01_FlushTx();
+	XN297_WritePayload(msg, len);
+}
+
+static void __attribute__((unused)) XN297L_HoppingCalib(__attribute__((unused)) uint8_t num_freq)
+{	//calibrate hopping frequencies
+}
+
+static void __attribute__((unused)) XN297L_Hopping(uint8_t index)
+{
+	NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency[index]);
+}
+
+static void __attribute__((unused)) XN297L_RFChannel(uint8_t number)
+{	//change channel
+	NRF24L01_WriteReg(NRF24L01_05_RF_CH, number);
+}
+
+static void __attribute__((unused)) XN297L_SetPower()
+{
+	NRF24L01_SetPower();
+}
+
+static void __attribute__((unused)) XN297L_SetFreqOffset()
+{	// Frequency offset
+}
+
+#endif
--- a/Multiprotocol/ZSX_nrf24l01.ino
+++ b/Multiprotocol/ZSX_nrf24l01.ino
@@ -0,0 +1,117 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+// Compatible with JJRC ZSX-280 plane.
+
+#if defined(ZSX_NRF24L01_INO)
+
+#include "iface_xn297l.h"
+
+//#define FORCE_ZSX_ORIGINAL_ID
+
+#define ZSX_INITIAL_WAIT	500
+#define ZSX_PACKET_PERIOD	10093
+#define ZSX_RF_BIND_CHANNEL	7
+#define ZSX_PAYLOAD_SIZE	6
+#define ZSX_BIND_COUNT		50
+#define ZSX_RF_NUM_CHANNELS	1
+
+static void __attribute__((unused)) ZSX_send_packet()
+{
+	memcpy(&packet[1],rx_tx_addr,3);
+	if(IS_BIND_IN_PROGRESS)
+	{
+		packet[0] = 0xAA;
+		packet[4] = 0x00;
+		packet[5] = 0x00;
+	}
+	else
+	{
+		packet[0]= 0x55;
+		packet[4]= 0xFF-convert_channel_8b(RUDDER);		// FF..80..01
+		packet[5]= convert_channel_8b(THROTTLE)>>1		// 0..7F
+				| GET_FLAG(CH5_SW, 0x80);				// Light
+	}
+
+	XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
+	NRF24L01_FlushTx();
+	XN297_WritePayload(packet, ZSX_PAYLOAD_SIZE);
+
+	NRF24L01_SetPower();		// Set tx_power
+}
+
+static void __attribute__((unused)) ZSX_initialize_txid()
+{
+	rx_tx_addr[0]=rx_tx_addr[3];	// Use RX_num;
+	#ifdef FORCE_ZSX_ORIGINAL_ID
+		//TX1
+		rx_tx_addr[0]=0x03;
+		rx_tx_addr[1]=0x01;
+		rx_tx_addr[2]=0xC3;
+	#endif
+}
+
+static void __attribute__((unused)) ZSX_init()
+{
+	NRF24L01_Initialize();
+	NRF24L01_SetTxRxMode(TX_EN);
+	NRF24L01_FlushTx();
+	NRF24L01_FlushRx();
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);	// Clear data ready, data sent, and retransmit
+	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);		// No Auto Acknowldgement on all data pipes
+	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);	// Enable data pipe 0 only
+	NRF24L01_SetBitrate(NRF24L01_BR_1M);			// 1Mbps
+	NRF24L01_SetPower();
+	XN297_SetTXAddr((uint8_t*)"\xc1\xc2\xc3", 3);
+	NRF24L01_WriteReg(NRF24L01_05_RF_CH, ZSX_RF_BIND_CHANNEL);	// Set bind channel
+}
+
+uint16_t ZSX_callback()
+{
+	if(IS_BIND_IN_PROGRESS)
+		if(--bind_counter==0)
+		{
+			BIND_DONE;
+			XN297_SetTXAddr(rx_tx_addr, 3);
+			NRF24L01_WriteReg(NRF24L01_05_RF_CH, 0x00);
+		}
+	ZSX_send_packet();
+	return ZSX_PACKET_PERIOD;
+}
+
+uint16_t initZSX()
+{
+	BIND_IN_PROGRESS;	// autobind protocol
+	ZSX_initialize_txid();
+	ZSX_init();
+	bind_counter=ZSX_BIND_COUNT;
+	return ZSX_INITIAL_WAIT;
+}
+
+#endif
+
+// XN297 spped 1Mb, scrambled
+// Bind
+//   channel 7
+//   address: C1 C2 C3
+//   P(6)= AA 03 01 C3 00 00
+//   03 01 C3 <- normal address
+// Normal
+//   channel 0 and seems to be fixed
+//   address: 03 01 C3
+//   P(6)= 55 03 01 C3 80 00
+//   03 01 C3 <- normal address
+//   80 <- rudder FF..80..01
+//   00 <- throttle 00..7F, light flag 0x80
--- a/Multiprotocol/_Config.h
+++ b/Multiprotocol/_Config.h
@@ -29,10 +29,10 @@
 /*************************/
 /*** BOOTLOADER USE     ***/
 /*************************/
-//Allow flashing multimodule directly with TX(erky9x or opentx modified firmwares)
-//Instructions: https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/tree/master/BootLoaders#compiling--uploading-firmware-with-the-flash-from-tx-bootloader
-//To enable this feature remove the "//" on the next line.  Requires a compatible bootloader or upload method to be selected when you use the Multi 4-in-1 Boards Manager definitions.
-//#define CHECK_FOR_BOOTLOADER
+//Allow flashing multimodule directly with TX(erky9x or opentx maintenance mode)
+//Instructions:https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/docs/Flash_from_Tx.md
+//To disable this feature add "//" at the begining of the next line.  Requires a compatible bootloader or upload method to be selected when you use the Multi 4-in-1 Boards Manager definitions.
+#define CHECK_FOR_BOOTLOADER


 /*******************/
@@ -78,14 +78,17 @@
 #define CC2500_INSTALLED
 #define NRF24L01_INSTALLED

+//If available use the CC2500 to emulate the XN297L @250Kbps instead of the NRF24L01. Comment to disable.
+#define XN297L_CC2500_EMU
+
 /** OrangeRX TX **/
 //If you compile for the OrangeRX TX module you need to select the correct board type.
 //By default the compilation is done for the GREEN board, to switch to a BLUE board uncomment the line below by removing the "//"
 //#define ORANGE_TX_BLUE

 /** CC2500 Fine Frequency Tuning **/
-//For optimal performance the CC2500 RF module used by the FrSkyD, FrSkyV, FrSkyX, SFHSS, CORONA and Hitec protocols needs to be tuned for each protocol.
-//Initial tuning should be done via the radio menu with a genuine FrSky/Futaba/CORONA/Hitec receiver.  
+//For optimal performance the CC2500 RF module used by the FrSkyD, FrSkyV, FrSkyX, SFHSS, CORONA, Redpine and Hitec protocols needs to be tuned for each protocol.
+//Initial tuning should be done via the radio menu with a genuine FrSky/Futaba/CORONA/Hitec/Redpine receiver.  
 //Once a good tuning value is found it can be set here and will override the radio's 'option' setting for all existing and new models which use that protocol.
 //For more information: https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/tree/master/docs/Frequency_Tuning.md
 //Uncomment the lines below (remove the "//") and set an appropriate value (replace the "0") to enable. Valid range is -127 to +127.
@@ -95,6 +98,7 @@
 //#define FORCE_SFHSS_TUNING	0
 //#define FORCE_CORONA_TUNING	0
 //#define FORCE_HITEC_TUNING	0
+//#define FORCE_REDPINE_TUNING	0

 /** A7105 Fine Frequency Tuning **/
 //This is required in rare cases where some A7105 modules and/or RXs have an inaccurate crystal oscillator.
@@ -104,19 +108,27 @@

 //Once a good tuning value is found it can be set here and will override the frequency tuning for a specific protocol.
 //Uncomment the lines below (remove the "//") and set an appropriate value (replace the "0") to enable. Valid range is -300 to +300 and default is 0.
-//#define FORCE_FLYSKY_TUNING	0
-//#define FORCE_HUBSAN_TUNING	0
 //#define FORCE_AFHDS2A_TUNING	0
-//#define FORCE_BUGS_TUNING	0
+//#define FORCE_BUGS_TUNING		0
+//#define FORCE_FLYSKY_TUNING	0
+//#define FORCE_FLYZONE_TUNING	0
+//#define FORCE_HUBSAN_TUNING	0
+
+/** CYRF6936 Fine Frequency Tuning **/
+//This is required in rare cases where some CYRF6936 modules and/or RXs have an inaccurate crystal oscillator.
+//If using Serial mode only (for now), you can use CH15 to find the right tuning value. -100%=-300, 0%=default 0, +100%=+300.
+//Uncomment the line below (remove the "//") to enable this feature.
+//#define USE_CYRF6936_CH15_TUNING

 /** Low Power **/
 //Low power is reducing the transmit power of the multi module. This setting is configurable per model in PPM (table below) or Serial mode (radio GUI).
 //It can be activated when flying indoor or small models since the distance is short or if a model is causing issues when flying closed to the TX.
-//By default low power is completly disabled on all rf chips to prevent mistakes, but you can enable it by uncommenting the lines below: 
-//#define A7105_ENABLE_LOW_POWER
-//#define CYRF6936_ENABLE_LOW_POWER
-//#define CC2500_ENABLE_LOW_POWER
-//#define NRF24L01_ENABLE_LOW_POWER
+//By default low power selection is enabled on all rf chips, but you can disable it by commenting (add //) the lines below if you don't want to risk
+//flying a model with low power.
+#define A7105_ENABLE_LOW_POWER
+#define CYRF6936_ENABLE_LOW_POWER
+#define CC2500_ENABLE_LOW_POWER
+#define NRF24L01_ENABLE_LOW_POWER


 /*****************/
@@ -145,25 +157,29 @@

 //The protocols below need an A7105 to be installed
 #define	AFHDS2A_A7105_INO
-#define	FLYSKY_A7105_INO
-#define	HUBSAN_A7105_INO
 #define	BUGS_A7105_INO
+#define	FLYSKY_A7105_INO
+#define	FLYZONE_A7105_INO
+#define	HUBSAN_A7105_INO

 //The protocols below need a CYRF6936 to be installed
 #define	DEVO_CYRF6936_INO
 #define	DSM_CYRF6936_INO
 #define	J6PRO_CYRF6936_INO
+#define	TRAXXAS_CYRF6936_INO
 #define	WFLY_CYRF6936_INO
 #define	WK2x01_CYRF6936_INO
-//#define TRAXXAS_CYRF6936_INO

 //The protocols below need a CC2500 to be installed
 #define	CORONA_CC2500_INO
 #define	FRSKYD_CC2500_INO
 #define	FRSKYV_CC2500_INO
 #define	FRSKYX_CC2500_INO
+#define	FRSKYX_RX_CC2500_INO
 #define	HITEC_CC2500_INO
+#define	SCANNER_CC2500_INO
 #define	SFHSS_CC2500_INO
+#define	REDPINE_CC2500_INO

 //The protocols below need a NRF24L01 to be installed
 #define	ASSAN_NRF24L01_INO
@@ -184,17 +200,21 @@
 #define	HISKY_NRF24L01_INO
 #define	HONTAI_NRF24L01_INO
 #define	H8_3D_NRF24L01_INO
+#define	KF606_NRF24L01_INO
 #define	KN_NRF24L01_INO
 #define	MJXQ_NRF24L01_INO
 #define	MT99XX_NRF24L01_INO
-#define NCC1701_NRF24L01_INO
+#define	NCC1701_NRF24L01_INO
+#define	POTENSIC_NRF24L01_INO
 #define	Q303_NRF24L01_INO
 #define	SHENQI_NRF24L01_INO
 #define	SLT_NRF24L01_INO
 #define	SYMAX_NRF24L01_INO
 #define	V2X2_NRF24L01_INO
+#define	V761_NRF24L01_INO
 #define	V911S_NRF24L01_INO
 #define	YD717_NRF24L01_INO
+#define	ZSX_NRF24L01_INO


 /***************************/
@@ -207,10 +227,10 @@
 // For more throw, 1024..1976us @100% and 904..2096us @125%, remove the "//" on the line below. Be aware that too much throw can damage some UMX servos. To achieve standard throw in this mode use a channel weight of 84%.
 //#define DSM_MAX_THROW
 //Some models (X-Vert, Blade 230S...) require a special value to instant stop the motor(s).
-// You can disable this feature by adding "//" on the line below. You have to specify which channel (15 by default) will be used to kill the throttle channel.
-// If the channel 15 is above -50% the throttle is untouched but if it is between -50% and -100%, the throttle output will be forced between -100% and -150%.
+// You can disable this feature by adding "//" on the line below. You have to specify which channel (14 by default) will be used to kill the throttle channel.
+// If the channel 14 is above -50% the throttle is untouched but if it is between -50% and -100%, the throttle output will be forced between -100% and -150%.
 // For example, a value of -80% applied on channel 15 will instantly kill the motors on the X-Vert.
-#define DSM_THROTTLE_KILL_CH 15 
+#define DSM_THROTTLE_KILL_CH 14 

 //AFHDS2A specific settings
 //-------------------------
@@ -221,25 +241,12 @@
 /**************************/
 /*** FAILSAFE SETTINGS  ***/
 /**************************/
-//The module is using the same default failsafe values for all protocols which currently supports it:
-//  Devo, WK2x01, SFHSS, HISKY/HK310 and AFHDS2A
-//All channels are centered except throttle which is forced low.
-//If you want to diasble failsafe globally comment the line below using "//".
+//The following protocols are supporting failsafe: FrSkyX, Devo, WK2x01, SFHSS, HISKY/HK310 and AFHDS2A
+//In Serial mode failsafe is configured on the radio itself.
+//In PPM mode and only after the module is up and fully operational, press the bind button for at least 5sec to send the current stick positions as failsafe to the RX.
+//If you want to disable failsafe globally comment the line below using "//".
 #define FAILSAFE_ENABLE

-//Failsafe throttle low value in percentage.
-//Value between -125% and +125%. Default -100.
-#define FAILSAFE_THROTTLE_LOW -100
-
-//The radio using serial protocol can set failsafe data.
-// Two options are available:
-//  a. replace the default failsafe data with serial failsafe data when they are received.
-//  b. wait for the radio to provide failsafe before sending it. Enable advanced settings like "FAILSAFE NOT SET" or "FAILSAFE RX".
-// Option a. is the default since you have a protection even if no failsafe has been set on the radio.
-// You can force option b. by uncommenting the line below (remove the "//").
-//#define FAILSAFE_SERIAL_ONLY
-
-
 /**************************/
 /*** TELEMETRY SETTINGS ***/
 /**************************/
@@ -258,11 +265,11 @@

 //Comment if you don't want to send Multi status telemetry frames (Protocol available, Bind in progress, version...)
 //Use with er9x/erksy9x, for OpenTX MULTI_TELEMETRY below is preferred instead
-#define MULTI_STATUS
+//#define MULTI_STATUS

 //Uncomment to send Multi status and allow OpenTX to autodetect the telemetry format
 //Supported by OpenTX version 2.2 RC9 and newer. NOT supported by er9x/ersky9x use MULTI_STATUS instead.
-//#define MULTI_TELEMETRY
+#define MULTI_TELEMETRY

 //Comment a line to disable a specific protocol telemetry
 #define DSM_TELEMETRY				// Forward received telemetry packet directly to TX to be decoded by er9x, ersky9x and OpenTX
@@ -277,6 +284,8 @@
 #define CABELL_HUB_TELEMETRY		// Use FrSkyD Hub format to send telemetry to TX
 #define HITEC_HUB_TELEMETRY			// Use FrSkyD Hub format to send basic telemetry to the radios which can decode it like er9x, ersky9x and OpenTX
 #define HITEC_FW_TELEMETRY			// Under development: Forward received telemetry packets to be decoded by ersky9x and OpenTX
+#define SCANNER_TELEMETRY			// Forward spectrum scanner data to TX
+#define FRSKYX_RX_TELEMETRY			// Forward channels data to TX

 //SPORT_POLLING is an implementation of the same polling routine as XJT module for sport telemetry bidirectional communication.
 //This is useful for passing sport control frames from TX to RX(ex: changing Betaflight PID or VTX channels on the fly using LUA scripts with OpentX).
@@ -343,99 +352,99 @@
 // short press the bind button multiple times until you reach the desired one. The bank number currently selected is indicated by the number of LED flash.
 // Full procedure is located here: https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/Protocols_Details.md#protocol-selection-in-ppm-mode

-//The parameter below indicates the number of desired banks between 1 and 5. Default is 5.
-#define NBR_BANKS 5
+//The parameter below indicates the number of desired banks between 1 and 5. Default is 1.
+#define NBR_BANKS 1

 const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 #if NBR_BANKS > 0
 //******************************       BANK 1       ******************************
-//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option
-/*	1	*/	{PROTO_FLYSKY,	Flysky		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	2	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 0
-/*	3	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	1	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 1
-/*	4	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 2
-/*	5	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 3
-/*	6	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 4
-/*	7	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 5
-/*	8	*/	{PROTO_SFHSS,	H107		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	9	*/	{PROTO_FRSKYV,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	10	*/	{PROTO_FRSKYD,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	11	*/	{PROTO_FRSKYX,	CH_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	12	*/	{PROTO_FRSKYX,	EU_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	13	*/	{PROTO_DEVO	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	14	*/	{PROTO_WK2x01,	WK2801		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
+//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option	Chan Order
+/*	1	*/	{PROTO_FLYSKY,	Flysky		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	2	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 0
+/*	3	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	1	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 1
+/*	4	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 2
+/*	5	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 3
+/*	6	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 4
+/*	7	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 5
+/*	8	*/	{PROTO_SFHSS,	H107		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	9	*/	{PROTO_FRSKYV,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	10	*/	{PROTO_FRSKYD,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	11	*/	{PROTO_FRSKYX,	CH_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	12	*/	{PROTO_FRSKYX,	EU_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	13	*/	{PROTO_DEVO	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	14	*/	{PROTO_WK2x01,	WK2801		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
 #endif
 #if NBR_BANKS > 1
 //******************************       BANK 2       ******************************
-//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option
-/*	1	*/	{PROTO_DSM	,	DSM2_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6		},	// option=number of channels
-/*	2	*/	{PROTO_DSM	,	DSM2_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6		},	// option=number of channels
-/*	3	*/	{PROTO_DSM	,	DSMX_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6		},	// option=number of channels
-/*	4	*/	{PROTO_DSM	,	DSMX_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6		},	// option=number of channels
-/*	5	*/	{PROTO_DSM	,	DSM2_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8		},	// option=number of channels
-/*	6	*/	{PROTO_DSM	,	DSM2_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8		},	// option=number of channels
-/*	7	*/	{PROTO_DSM	,	DSMX_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8		},	// option=number of channels
-/*	8	*/	{PROTO_DSM	,	DSMX_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8		},	// option=number of channels
-/*	9	*/	{PROTO_SLT	,	SLT_V1		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6		},
-/*	10	*/	{PROTO_HUBSAN,	H107		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	11	*/	{PROTO_HUBSAN,	H301		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	12	*/	{PROTO_HUBSAN,	H501		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	13	*/	{PROTO_HISKY,	Hisky		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	14	*/	{PROTO_V2X2	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
+//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option	Chan Order
+/*	1	*/	{PROTO_DSM	,	DSM2_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6	,	0x00000000 },	// option=number of channels
+/*	2	*/	{PROTO_DSM	,	DSM2_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6	,	0x00000000 },	// option=number of channels
+/*	3	*/	{PROTO_DSM	,	DSMX_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6	,	0x00000000 },	// option=number of channels
+/*	4	*/	{PROTO_DSM	,	DSMX_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6	,	0x00000000 },	// option=number of channels
+/*	5	*/	{PROTO_DSM	,	DSM2_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8	,	0x00000000 },	// option=number of channels
+/*	6	*/	{PROTO_DSM	,	DSM2_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8	,	0x00000000 },	// option=number of channels
+/*	7	*/	{PROTO_DSM	,	DSMX_11		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8	,	0x00000000 },	// option=number of channels
+/*	8	*/	{PROTO_DSM	,	DSMX_22		,	0	,	P_HIGH	,	NO_AUTOBIND	,	8	,	0x00000000 },	// option=number of channels
+/*	9	*/	{PROTO_SLT	,	SLT_V1		,	0	,	P_HIGH	,	NO_AUTOBIND	,	6	,	0x00000000 },
+/*	10	*/	{PROTO_HUBSAN,	H107		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	11	*/	{PROTO_HUBSAN,	H301		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	12	*/	{PROTO_HUBSAN,	H501		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	13	*/	{PROTO_HISKY,	Hisky		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	14	*/	{PROTO_V2X2	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
 #endif
 #if NBR_BANKS > 2
 //******************************       BANK 3       ******************************
-//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option
-/*	1	*/	{PROTO_ESKY	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	2	*/	{PROTO_ESKY150,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	3	*/	{PROTO_ASSAN,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	4	*/	{PROTO_CORONA,	COR_V2		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	5	*/	{PROTO_SYMAX,	SYMAX		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	6	*/	{PROTO_KN	,	WLTOYS		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	7	*/	{PROTO_BAYANG,	BAYANG		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	8	*/	{PROTO_BAYANG,	H8S3D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	9	*/	{PROTO_BAYANG,	X16_AH		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	10	*/	{PROTO_BAYANG,	IRDRONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	11	*/	{PROTO_H8_3D,	H8_3D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	12	*/	{PROTO_H8_3D,	H20H		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	13	*/	{PROTO_H8_3D,	H20MINI		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	14	*/	{PROTO_H8_3D,	H30MINI		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
+//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option	Chan Order
+/*	1	*/	{PROTO_ESKY	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	2	*/	{PROTO_ESKY150,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	3	*/	{PROTO_ASSAN,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	4	*/	{PROTO_CORONA,	COR_V2		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	5	*/	{PROTO_SYMAX,	SYMAX		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	6	*/	{PROTO_KN	,	WLTOYS		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	7	*/	{PROTO_BAYANG,	BAYANG		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	8	*/	{PROTO_BAYANG,	H8S3D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	9	*/	{PROTO_BAYANG,	X16_AH		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	10	*/	{PROTO_BAYANG,	IRDRONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	11	*/	{PROTO_H8_3D,	H8_3D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	12	*/	{PROTO_H8_3D,	H20H		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	13	*/	{PROTO_H8_3D,	H20MINI		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	14	*/	{PROTO_H8_3D,	H30MINI		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
 #endif
 #if NBR_BANKS > 3
 //******************************       BANK 4       ******************************
-//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option
-/*	1	*/	{PROTO_MJXQ	,	WLH08		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	2	*/	{PROTO_MJXQ	,	X600		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	3	*/	{PROTO_MJXQ	,	X800		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	4	*/	{PROTO_MJXQ	,	H26D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	5	*/	{PROTO_MJXQ	,	E010		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	6	*/	{PROTO_MJXQ	,	H26WH		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	7	*/	{PROTO_HONTAI,	HONTAI		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	8	*/	{PROTO_HONTAI,	JJRCX1		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	9	*/	{PROTO_HONTAI,	X5C1		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	10	*/	{PROTO_HONTAI,	FQ777_951	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	11	*/	{PROTO_Q303	,	Q303		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	12	*/	{PROTO_Q303	,	CX35		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	13	*/	{PROTO_Q303	,	CX10D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	14	*/	{PROTO_Q303	,	CX10WD		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
+//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option	Chan Order
+/*	1	*/	{PROTO_MJXQ	,	WLH08		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	2	*/	{PROTO_MJXQ	,	X600		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	3	*/	{PROTO_MJXQ	,	X800		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	4	*/	{PROTO_MJXQ	,	H26D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	5	*/	{PROTO_MJXQ	,	E010		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	6	*/	{PROTO_MJXQ	,	H26WH		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	7	*/	{PROTO_HONTAI,	HONTAI		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	8	*/	{PROTO_HONTAI,	JJRCX1		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	9	*/	{PROTO_HONTAI,	X5C1		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	10	*/	{PROTO_HONTAI,	FQ777_951	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	11	*/	{PROTO_Q303	,	Q303		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	12	*/	{PROTO_Q303	,	CX35		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	13	*/	{PROTO_Q303	,	CX10D		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	14	*/	{PROTO_Q303	,	CX10WD		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
 #endif
 #if NBR_BANKS > 4
 //******************************       BANK 5       ******************************
-//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option
-/*	1	*/	{PROTO_CX10	,	CX10_GREEN	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	2	*/	{PROTO_CX10	,	CX10_BLUE	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	3	*/	{PROTO_CX10	,	DM007		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	4	*/	{PROTO_CX10	,	JC3015_1	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	5	*/	{PROTO_CX10	,	JC3015_2	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	6	*/	{PROTO_CX10	,	MK33041		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	7	*/	{PROTO_Q2X2	,	Q222		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	8	*/	{PROTO_Q2X2	,	Q242		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	9	*/	{PROTO_Q2X2	,	Q282		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	10	*/	{PROTO_CG023,	CG023		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	11	*/	{PROTO_CG023,	YD829		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	12	*/	{PROTO_FQ777,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	13	*/	{PROTO_YD717,	YD717		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	14	*/	{PROTO_MT99XX,	MT99		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
+//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option	Chan Order
+/*	1	*/	{PROTO_CX10	,	CX10_GREEN	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	2	*/	{PROTO_CX10	,	CX10_BLUE	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	3	*/	{PROTO_CX10	,	DM007		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	4	*/	{PROTO_CX10	,	JC3015_1	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	5	*/	{PROTO_CX10	,	JC3015_2	,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	6	*/	{PROTO_CX10	,	MK33041		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	7	*/	{PROTO_Q2X2	,	Q222		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	8	*/	{PROTO_Q2X2	,	Q242		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	9	*/	{PROTO_Q2X2	,	Q282		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	10	*/	{PROTO_CG023,	CG023		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	11	*/	{PROTO_CG023,	YD829		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	12	*/	{PROTO_FQ777,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	13	*/	{PROTO_YD717,	YD717		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	14	*/	{PROTO_MT99XX,	MT99		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
 #endif
 };
 // RX_Num is used for TX & RX match. Using different RX_Num values for each receiver will prevent starting a model with the false config loaded...
@@ -452,6 +461,15 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 // Option: the value is between -128 and +127.
 // The option value is only valid for some protocols, read this page for more information: https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/Protocols_Details.md

+// Chan order: if the value is different from 0, this setting will remap the first 8 channels in any given order before giving them to the protocol.
+// It does not disable the automatic channel remapping of the protocol itself but changes the input of it.
+// Even if your TX is sending less than 8 channels you have to respect the format like if it was.
+// Examples:
+//  - 0x12345678 will give to the protocol the channels in the order 1,2,3,4,5,6,7,8 which is equivalent to 0x00000000.
+//  - 0x42315678 will give to the protocol the channels in the order 4,2,3,1,5,6,7,8 swapping channel 1 and 4.
+//  - 0x40010000 will give to the protocol the channels in the order 4,2,3,1,5,6,7,8 swapping channel 1 and 4. Note: 0 means leave the channel where it is.
+//  - 0x0000ABCD will give to the protocol the channels in the order 1,2,3,4,10,11,12,13 which potentially enables acces to channels not available on your TX. Note A=10,B=11,C=12,D=13,E=14,F=15.
+
 /* Available protocols and associated sub protocols to pick and choose from (Listed in alphabetical order)
 	PROTO_AFHDS2A
 		PWM_IBUS
@@ -465,6 +483,7 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		H8S3D
 		X16_AH
 		IRDRONE
+		DHD_D4
 	PROTO_BUGS
 		NONE
 	PROTO_BUGSMINI
@@ -514,6 +533,8 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		V6X6
 		V912
 		CX20
+	PROTO_FLYZONE
+		FZ410
 	PROTO_FQ777
 		NONE
 	PROTO_FRSKYD
@@ -525,6 +546,9 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		CH_8
 		EU_16
 		EU_8
+	PROTO_FRSKYX_RX
+		FRSKYX_FCC
+		FRSKYX_LBT
 	PROTO_FY326
 		FY326
 		FY319
@@ -556,6 +580,8 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		H501
 	PROTO_J6PRO
 		NONE
+	PROTO_KF606
+		NONE
 	PROTO_KN
 		WLTOYS
 		FEILUN
@@ -575,6 +601,8 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		FY805
 	PROTO_NCC1701
 		NONE
+	PROTO_POTENSIC
+		NONE
 	PROTO_Q2X2
 		Q222
 		Q242
@@ -584,6 +612,11 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		CX35
 		CX10D
 		CX10WD
+	PROTO_REDPINE
+		RED_FAST
+		RED_SLOW
+	PROTO_SCANNER
+		NONE
 	PROTO_SFHSS
 		NONE
 	PROTO_SHENQI
@@ -598,10 +631,12 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		SYMAX
 		SYMAX5C
 	PROTO_TRAXXAS
-		NONE
+		RX6519
 	PROTO_V2X2
 		V2X2
 		JXD506
+	PROTO_V761
+		NONE
 	PROTO_V911S
 		NONE
 	PROTO_WFLY
@@ -619,4 +654,6 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		SYMAX4
 		XINXUN
 		NIHUI
+	PROTO_ZSX
+		NONE
 */
--- a/Multiprotocol/_MyConfig.h.example
+++ b/Multiprotocol/_MyConfig.h.example
@@ -60,20 +60,20 @@
 	#define MY_PPM_PROT		// Use the bellow protocol list
 	const PPM_Parameters My_PPM_prot[14*NBR_BANKS]={
 //******************************       BANK 1       ******************************
-//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option
-/*	1	*/	{PROTO_KN	,	WLTOYS		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	2	*/	{PROTO_FLYSKY,	Flysky		,	0	,	P_HIGH	,	AUTOBIND	,	0		},
-/*	3	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	1	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 1
-/*	4	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 2
-/*	5	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 3
-/*	6	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 4
-/*	7	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0		},	// RX number 5
-/*	8	*/	{PROTO_SFHSS,	H107		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	9	*/	{PROTO_FRSKYV,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	10	*/	{PROTO_FRSKYD,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	11	*/	{PROTO_FRSKYX,	CH_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	12	*/	{PROTO_FRSKYX,	EU_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40		},	// option=fine freq tuning
-/*	13	*/	{PROTO_DEVO	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
-/*	14	*/	{PROTO_WK2x01,	WK2801		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0		},
+//	Switch	Protocol 		Sub protocol	RX_Num	Power		Auto Bind		Option	Chan Order
+/*	1	*/	{PROTO_KN	,	WLTOYS		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	2	*/	{PROTO_FLYSKY,	Flysky		,	0	,	P_HIGH	,	AUTOBIND	,	0	,	0x00000000 },
+/*	3	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	1	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 1
+/*	4	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 2
+/*	5	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 3
+/*	6	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	2	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 4
+/*	7	*/	{PROTO_AFHDS2A,	PWM_IBUS	,	3	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },	// RX number 5
+/*	8	*/	{PROTO_SFHSS,	H107		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	9	*/	{PROTO_FRSKYV,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	10	*/	{PROTO_FRSKYD,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	11	*/	{PROTO_FRSKYX,	CH_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	12	*/	{PROTO_FRSKYX,	EU_16		,	0	,	P_HIGH	,	NO_AUTOBIND	,	40	,	0x00000000 },	// option=fine freq tuning
+/*	13	*/	{PROTO_DEVO	,	NONE		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
+/*	14	*/	{PROTO_WK2x01,	WK2801		,	0	,	P_HIGH	,	NO_AUTOBIND	,	0	,	0x00000000 },
 	};
 #endif
--- a/Multiprotocol/iface_xn297l.h
+++ b/Multiprotocol/iface_xn297l.h
@@ -0,0 +1,20 @@
+#ifndef _IFACE_XN297L_H_
+
+#define _IFACE_XN297L_H_
+
+#if defined (XN297L_CC2500_EMU)
+	#include "iface_cc2500.h"
+#elif defined (NRF24L01_INSTALLED)
+	#include "iface_nrf24l01.h"
+#endif
+
+static void __attribute__((unused)) XN297L_Init();
+static void __attribute__((unused)) XN297L_SetTXAddr(const uint8_t*, uint8_t);
+static void __attribute__((unused)) XN297L_WritePayload(uint8_t*, uint8_t);
+static void __attribute__((unused)) XN297L_HoppingCalib(__attribute__((unused)) uint8_t);
+static void __attribute__((unused)) XN297L_Hopping(uint8_t);
+static void __attribute__((unused)) XN297L_RFChannel(uint8_t);
+static void __attribute__((unused)) XN297L_SetPower();
+static void __attribute__((unused)) XN297L_SetFreqOffset();
+
+#endif
--- a/Protocols_Details.md
+++ b/Protocols_Details.md
@@ -65,58 +65,69 @@ You've upgraded the module but the radio does not display the name of the protoc
 
 # Available Protocol Table of Contents (Listed Alphabetically)

-Protocol Name|Protocol Number|Sub_Proto 0|Sub_Proto 1|Sub_Proto 2|Sub_Proto 3|Sub_Proto 4|Sub_Proto 5|Sub_Proto 6|Sub_Proto 7|RF Module
---|---|---|---|---|---|---|---|---|---|---
-[Assan](Protocols_Details.md#ASSAN---24)|24|ASSAN||||||||NRF24L01
-[Bayang](Protocols_Details.md#BAYANG---14)|14|Bayang|H8S3D|X16_AH|IRDRONE|||||NRF24L01
-[Bugs](Protocols_Details.md#BUGS---41)|41|BUGS||||||||A7105
-[BugsMini](Protocols_Details.md#BUGSMINI---42)|42|BUGSMINI|BUGSMINI|BUGS3H||||||NRF24L01
-[Cabell](Protocols_Details.md#Cabell---34)|34|Cabell_V3|C_TELEM|-|-|-|-|F_SAFE|UNBIND|NRF24L01
-CFlie|38|CFlie||||||||NRF24L01
-[CG023](Protocols_Details.md#CG023---13)|13|CG023|YD829|||||||NRF24L01
-[Corona](Protocols_Details.md#CORONA---37)|37|COR_V1|COR_V2|FD_V3||||||CC2500
-[CX10](Protocols_Details.md#CX10---12)|12|GREEN|BLUE|DM007|-|J3015_1|J3015_2|MK33041||NRF24L01
-[Devo](Protocols_Details.md#DEVO---7)|7|Devo||||||||CYRF6936
-[DM002](Protocols_Details.md#DM002---33)|33|DM002||||||||NRF24L01
-[DSM](Protocols_Details.md#DSM---6)|6|DSM2-22|DSM2-11|DSMX-22|DSMX-11|AUTO||||CYRF6936
-[E01X](Protocols_Details.md#E01X---45)|45|E012|E015|E016H||||||NRF24L01
-[ESky](Protocols_Details.md#ESKY---16)|16|ESky||||||||NRF24L01
-[ESky150](Protocols_Details.md#ESKY150---35)|35|ESKY150||||||||NRF24L01
-[Flysky](Protocols_Details.md#FLYSKY---1)|1|Flysky|V9x9|V6x6|V912|CX20||||A7105
-[Flysky AFHDS2A](Protocols_Details.md#FLYSKY-AFHDS2A---28)|28|PWM_IBUS|PPM_IBUS|PWM_SBUS|PPM_SBUS|||||A7105
-[FQ777](Protocols_Details.md#FQ777---23)|23|FQ777||||||||NRF24L01
-[FrskyD](Protocols_Details.md#FRSKYD---3)|3|FrskyD||||||||CC2500
-[FrskyV](Protocols_Details.md#FRSKYV---25)|25|FrskyV||||||||CC2500
-[FrskyX](Protocols_Details.md#FRSKYX---15)|15|CH_16|CH_8|EU_16|EU_8|||||CC2500
-[FY326](Protocols_Details.md#FY326---20)|20|FY326|FY319|||||||NRF24L01
-[GD00X](Protocols_Details.md#GD00X---47)|47|V1|V2|||||||NRF24L01
-[GW008](Protocols_Details.md#GW008---32)|32|GW008||||||||NRF24L01
-[H8_3D](Protocols_Details.md#H8_3D---36)|36|H8_3D|H20H|H20Mini|H30Mini|||||NRF24L01
-[Hisky](Protocols_Details.md#HISKY---4)|4|Hisky|HK310|||||||NRF24L01
-[Hitec](Protocols_Details.md#HITEC---39)|39|OPT_FW|OPT_HUB|MINIMA||||||CC2500
-[Hontai](Protocols_Details.md#HONTAI---26)|26|HONTAI|JJRCX1|X5C1|FQ777_951|||||NRF24L01
-[Hubsan](Protocols_Details.md#HUBSAN---2)|2|H107|H301|H501||||||A7105
-[J6Pro](Protocols_Details.md#J6Pro---22)|22|J6PRO||||||||CYRF6936
-[KN](Protocols_Details.md#KN---9)|9|WLTOYS|FEILUN|||||||NRF24L01
-[MJXq](Protocols_Details.md#MJXQ---18)|18|WLH08|X600|X800|H26D|E010|H26WH|PHOENIX||NRF24L01
-[MT99xx](Protocols_Details.md#MT99XX---17)|17|MT|H7|YZ|LS|FY805||||NRF24L01
-[NCC1701](Protocols_Details.md#NCC1701---44)|44|NCC1701||||||||NRF24L01
-[OpenLRS](Protocols_Details.md#OpenLRS---27)|27|||||||||None
-[Q2X2](Protocols_Details.md#Q2X2---29)|29|Q222|Q242|Q282||||||NRF24L01
-[Q303](Protocols_Details.md#Q303---31)|31|Q303|CX35|CX10D|CX10WD|||||NRF24L01
-[SFHSS](Protocols_Details.md#SFHSS---21)|21|SFHSS||||||||CC2500
-[Shenqi](Protocols_Details.md#Shenqi---19)|19|Shenqi||||||||NRF24L01
-[SLT](Protocols_Details.md#SLT---11)|11|SLT_V1|SLT_V2|Q100|Q200|MR100||||NRF24L01
-[SymaX](Protocols_Details.md#Symax---10)|10|SYMAX|SYMAX5C|||||||NRF24L01
-Traxxas|43|Traxxas||||||||NRF24L01
-[V2x2](Protocols_Details.md#V2X2---5)|5|V2x2|JXD506|||||||NRF24L01
-[V911S](Protocols_Details.md#V911S---46)|46|V911S||||||||NRF24L01
-[WFly](Protocols_Details.md#WFLY---40)|40|WFLY||||||||CYRF6936
-[WK2x01](Protocols_Details.md#WK2X01---30)|30|WK2801|WK2401|W6_5_1|W6_6_1|W6_HEL|W6_HEL_I|||CYRF6936
-[YD717](Protocols_Details.md#YD717---8)|8|YD717|SKYWLKR|SYMAX4|XINXUN|NIHUI||||NRF24L01
+Protocol Name|Protocol Number|Sub_Proto 0|Sub_Proto 1|Sub_Proto 2|Sub_Proto 3|Sub_Proto 4|Sub_Proto 5|Sub_Proto 6|Sub_Proto 7|RF Module|Emulation
+---|---|---|---|---|---|---|---|---|---|---|---
+[Assan](Protocols_Details.md#ASSAN---24)|24|ASSAN||||||||NRF24L01|
+[Bayang](Protocols_Details.md#BAYANG---14)|14|Bayang|H8S3D|X16_AH|IRDRONE|DHD_D4||||NRF24L01|XN297
+[Bugs](Protocols_Details.md#BUGS---41)|41|BUGS||||||||A7105|
+[BugsMini](Protocols_Details.md#BUGSMINI---42)|42|BUGSMINI|BUGS3H|||||||NRF24L01|XN297
+[Cabell](Protocols_Details.md#Cabell---34)|34|Cabell_V3|C_TELEM|-|-|-|-|F_SAFE|UNBIND|NRF24L01|
+CFlie|38|CFlie||||||||NRF24L01|
+[CG023](Protocols_Details.md#CG023---13)|13|CG023|YD829|||||||NRF24L01|XN297
+[Corona](Protocols_Details.md#CORONA---37)|37|COR_V1|COR_V2|FD_V3||||||CC2500|
+[CX10](Protocols_Details.md#CX10---12)|12|GREEN|BLUE|DM007|-|J3015_1|J3015_2|MK33041||NRF24L01|XN297
+[Devo](Protocols_Details.md#DEVO---7)|7|Devo|8CH|10CH|12CH|6CH|7CH|||CYRF6936|
+[DM002](Protocols_Details.md#DM002---33)|33|DM002||||||||NRF24L01|XN297
+[DSM](Protocols_Details.md#DSM---6)|6|DSM2-22|DSM2-11|DSMX-22|DSMX-11|AUTO||||CYRF6936|
+[E01X](Protocols_Details.md#E01X---45)|45|E012|E015|E016H||||||NRF24L01|XN297/HS6200
+[ESky](Protocols_Details.md#ESKY---16)|16|ESky||||||||NRF24L01|
+[ESky150](Protocols_Details.md#ESKY150---35)|35|ESKY150||||||||NRF24L01|
+[Flysky](Protocols_Details.md#FLYSKY---1)|1|Flysky|V9x9|V6x6|V912|CX20||||A7105|
+[Flysky AFHDS2A](Protocols_Details.md#FLYSKY-AFHDS2A---28)|28|PWM_IBUS|PPM_IBUS|PWM_SBUS|PPM_SBUS|||||A7105|
+[Flyzone](Protocols_Details.md#FLYZONE---53)|53|FZ410||||||||A7105|
+[FQ777](Protocols_Details.md#FQ777---23)|23|FQ777||||||||NRF24L01|SSV7241
+[FrskyD](Protocols_Details.md#FRSKYD---3)|3|FrskyD||||||||CC2500|
+[FrskyV](Protocols_Details.md#FRSKYV---25)|25|FrskyV||||||||CC2500|
+[FrskyX](Protocols_Details.md#FRSKYX---15)|15|CH_16|CH_8|EU_16|EU_8|||||CC2500|
+[FrskyX_RX](Protocols_Details.md#FRSKYX_RX---55)|55|FCC|EU_LBT|||||CC2500|
+[FY326](Protocols_Details.md#FY326---20)|20|FY326|FY319|||||||NRF24L01|
+[GD00X](Protocols_Details.md#GD00X---47)|47|GD_V1*|GD_V2*|||||||NRF24L01|
+[GW008](Protocols_Details.md#GW008---32)|32|GW008||||||||NRF24L01|XN297
+[H8_3D](Protocols_Details.md#H8_3D---36)|36|H8_3D|H20H|H20Mini|H30Mini|||||NRF24L01|XN297
+[Hisky](Protocols_Details.md#HISKY---4)|4|Hisky|HK310|||||||NRF24L01|
+[Hitec](Protocols_Details.md#HITEC---39)|39|OPT_FW|OPT_HUB|MINIMA||||||CC2500|
+[Hontai](Protocols_Details.md#HONTAI---26)|26|HONTAI|JJRCX1|X5C1|FQ777_951|||||NRF24L01|XN297
+[Hubsan](Protocols_Details.md#HUBSAN---2)|2|H107|H301|H501||||||A7105|
+[J6Pro](Protocols_Details.md#J6Pro---22)|22|J6PRO||||||||CYRF6936|
+[KF606](Protocols_Details.md#KF606---49)|49|KF606*||||||||NRF24L01|XN297
+[KN](Protocols_Details.md#KN---9)|9|WLTOYS|FEILUN|||||||NRF24L01|
+[MJXq](Protocols_Details.md#MJXQ---18)|18|WLH08|X600|X800|H26D|E010*|H26WH|PHOENIX*||NRF24L01|XN297
+[MT99xx](Protocols_Details.md#MT99XX---17)|17|MT|H7|YZ|LS|FY805||||NRF24L01|XN297
+[NCC1701](Protocols_Details.md#NCC1701---44)|44|NCC1701||||||||NRF24L01|
+[OpenLRS](Protocols_Details.md#OpenLRS---27)|27|||||||||None|
+[Potensic](Protocols_Details.md#Potensic---51)|51|A20||||||||NRF24L01|XN297
+[Q2X2](Protocols_Details.md#Q2X2---29)|29|Q222|Q242|Q282||||||NRF24L01|
+[Q303](Protocols_Details.md#Q303---31)|31|Q303|CX35|CX10D|CX10WD|||||NRF24L01|XN297
+[Redpine](Protocols_Details.md#Redpine---50)|50|FAST|SLOW|||||||NRF24L01|
+[Scanner](Protocols_Details.md#Scanner---54)|54|||||||||CC2500|
+[SFHSS](Protocols_Details.md#SFHSS---21)|21|SFHSS||||||||CC2500|
+[Shenqi](Protocols_Details.md#Shenqi---19)|19|Shenqi||||||||NRF24L01|LT8900
+[SLT](Protocols_Details.md#SLT---11)|11|SLT_V1|SLT_V2|Q100|Q200|MR100||||NRF24L01|
+[SymaX](Protocols_Details.md#Symax---10)|10|SYMAX|SYMAX5C|||||||NRF24L01|
+[Traxxas](Protocols_Details.md#Traxxas---43)|43|RX6519||||||||CYRF6936|
+[V2x2](Protocols_Details.md#V2X2---5)|5|V2x2|JXD506|||||||NRF24L01|
+[V761](Protocols_Details.md#V761---48)|48|V761||||||||NRF24L01|XN297
+[V911S](Protocols_Details.md#V911S---46)|46|V911S*||||||||NRF24L01|XN297
+[WFly](Protocols_Details.md#WFLY---40)|40|WFLY||||||||CYRF6936|
+[WK2x01](Protocols_Details.md#WK2X01---30)|30|WK2801|WK2401|W6_5_1|W6_6_1|W6_HEL|W6_HEL_I|||CYRF6936|
+[YD717](Protocols_Details.md#YD717---8)|8|YD717|SKYWLKR|SYMAX4|XINXUN|NIHUI||||NRF24L01|
+[ZSX](Protocols_Details.md#ZSX---52)|52|280||||||||NRF24L01|XN297
+* "*" Sub Protocols designated by * suffix will use the NRF24L01 module by default to emulate the XN297L RF chip. If a CC2500 module is installed it will be used instead as it is proving to be a better option for the XN297L@250kbps. Each specific sub protocol has a more detailed explanation.

 # A7105 RF Module

+If USE_A7105_CH15_TUNING is enabled, the value of channel 15 is used by all A7105 protocols for tuning the frequency. This is required in rare cases where some A7105 modules and/or RXs have an inaccurate crystal oscillator.
+
 ## FLYSKY - *1*
 Extended limits supported

@@ -153,13 +164,15 @@ CH5|CH6|CH7
 Extended limits and failsafe supported

 Telemetry enabled protocol:
- - by defaut using FrSky Hub protocol (for example er9x): RX&battery voltages and RX&TX RSSI
+ - by defaut using FrSky Hub protocol (for example er9x): RX(A1), battery voltage FS-CVT01(A2) and RX&TX RSSI
 - if using ersky9x and OpenTX: full telemetry information available

 Option is used to change the servo refresh rate. A value of 0 gives 50Hz (min), 70 gives 400Hz (max). Specific refresh rate value can be calculated like this option=(refresh_rate-50)/5.

 **RX_Num is used to give a number a given RX. You must use a different RX_Num per RX. A maximum of 16 AFHDS2A RXs are supported.**

+OpenTX suggested RSSI alarm threshold settings (Telemetry tab): Low=15, Critical=12.
+
 If telemetry is incomplete (missing RX RSSI for example), it means that you have to upgrade your RX firmware to version 1.6 or later. You can do it from an original Flysky TX or using a STLink like explained in [this tutorial](https://www.rcgroups.com/forums/showthread.php?2677694-How-to-upgrade-Flysky-Turnigy-iA6B-RX-to-firmware-1-6-with-a-ST-Link).

 AFHDS2A_LQI_CH is a feature which is disabled by defaut in the _config.h file. When enabled, it makes LQI (Link Quality Indicator) available on one of the RX ouput channel (5-14).
@@ -175,6 +188,15 @@ Note that the RX ouput will be AETR whatever the input channel order is.
 ### Sub_protocol PWM_SBUS - *2*
 ### Sub_protocol PPM_SBUS - *3*

+## FLYZONE - *53*
+Models using the Flyzone FZ-410 TX: Fokker D.VII Micro EP RTF
+
+Models using the old ARES TX (prior to Hitec RED): Tiger Moth
+
+CH1|CH2|CH3|CH4
+---|---|---|---
+A|E|T|R
+
 ## HUBSAN - *2*

 Telemetry enabled for battery voltage and TX RSSI
@@ -320,6 +342,32 @@ CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8
 ---|---|---|---|---|---|---|---
 CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8

+## FRSKYX_RX - *55*
+The FrSkyX receiver protocol enables master/slave trainning, separate access from 2 different radios to the same model,...
+
+Extended limits supported
+
+Option for this protocol corresponds to fine frequency tuning.
+If the value is equal to 0, the RX will auto tune otherwise it will use the indicated value.
+This value is different for each Module and **must** be accurate otherwise the link will not be stable.
+Check the [Frequency Tuning page](/docs/Frequency_Tuning.md) to determine it.
+
+Low power: enable/disable the LNA stage on the RF component to use depending on the distance with the TX.
+
+### Sub_protocol FCC - *0*
+FCC protocol 8 or 16 channels.
+
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|CH13|CH14|CH15|CH16
+---|---|---|---|---|---|---|---|---|----|----|----|----|----|----|----
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|CH13|CH14|CH15|CH16
+
+### Sub_protocol EU_LBT - *1*
+EU_LBT protocol 8 or 16 channels.
+
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|CH13|CH14|CH15|CH16
+---|---|---|---|---|---|---|---|---|----|----|----|----|----|----|----
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|CH13|CH14|CH15|CH16
+
 ## HITEC - *39*
 Models: OPTIMA, MINIMA and MICRO receivers.

@@ -361,15 +409,20 @@ CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8
 ---|---|---|---|---|---|---|---
 A|E|T|R|CH5|CH6|CH7|CH8

+## Scanner - *54*
+2.4GHz scanner accessible using the OpenTX 2.3 Spectrum Analyser tool.
+
 ***
 # CYRF6936 RF Module

+If USE_CYRF6936_CH15_TUNING is enabled, the value of channel 15 is used by all CYRF6936 protocols for tuning the frequency. This is required in rare cases where some CYRF6936 modules and/or RXs have an inaccurate crystal oscillator.
+
 ## DEVO - *7*
 Extended limits and failsafe supported

-CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8
---|---|---|---|---|---|---|---
-A|E|T|R|CH5|CH6|CH7|CH8
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12
+---|---|---|---|---|---|---|---|---|---|---|---
+A|E|T|R|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12

 Note that the RX ouput will be EATR.

@@ -394,6 +447,12 @@ Bind procedure using PPM:
 - To verify that the TX is in fixed mode: power cycle the TX, the module LED should be solid ON (no blink).
 - Note: Autobind/fixed ID mode is linked to the RX_Num number. Which means that you can have multiple dial numbers set to the same protocol DEVO with different RX_Num and have different bind modes at the same time. It enables PPM users to get model match under DEVO.

+### Sub_protocol 8CH - *0*
+### Sub_protocol 10CH - *1*
+### Sub_protocol 12CH - *2*
+### Sub_protocol 6CH - *3*
+### Sub_protocol 7CH - *4*
+
 ## WK2X01 - *30*
 Extended limits supported
 Autobind protocol
@@ -469,16 +528,16 @@ Telemetry enabled for TSSI and plugins

 option=number of channels from 4 to 12. An invalid option value will end up with 6 channels.

-CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|----|----|CH15
---|---|---|---|---|---|---|---|---|----|----|----|----|----|----
-A|E|T|R|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|----|----|TH_KILL
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|----|CH14
+---|---|---|---|---|---|---|---|---|----|----|----|----|----
+A|E|T|R|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12|----|TH_KILL

 Notes:
 - model/type/number of channels indicated on the RX can be different from what the RX is in fact wanting to see. So don't hesitate to test different combinations until you have something working. Using Auto is the best way to find these settings.
 - RX output will match the Spektrum standard TAER independently of the input configuration AETR, RETA...
 - RX output will match the Spektrum standard throw (1500µs +/- 400µs -> 1100..1900µs) for a 100% input. This is true for both Serial and PPM input. For PPM, make sure the end points PPM_MIN_100 and PPM_MAX_100 in _config.h are matching your TX ouput. The maximum ouput is 1000..2000µs based on an input of 125%.
    - If you want to override the above and get maximum throw (old way) uncomment in _config.h the line #define DSM_MAX_THROW . In this mode to achieve standard throw use a channel weight of 84%.
- - TH_KILL is a feature which is enabled on channel 15 by default (can be disabled/changed) in the _config.h file. Some models (X-Vert, Blade 230S...) require a special position to instant stop the motor(s). If the channel 15 is above -50% the throttle is untouched but if it is between -50% and -100%, the throttle output will be forced between -100% and -150%. For example, a value of -80% applied on channel 15 will instantly kill the motors on the X-Vert.
+ - TH_KILL is a feature which is enabled on channel 14 by default (can be disabled/changed) in the _config.h file. Some models (X-Vert, Blade 230S...) require a special position to instant stop the motor(s). If the channel 15 is above -50% the throttle is untouched but if it is between -50% and -100%, the throttle output will be forced between -100% and -150%. For example, a value of -80% applied on channel 14 will instantly kill the motors on the X-Vert.

 ### Sub_protocol DSM2_22 - *0*
 DSM2, Resolution 1024, refresh rate 22ms
@@ -501,6 +560,15 @@ CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12
 ---|---|---|---|---|---|---|---|---|----|----|----
 A|E|T|R|CH5|CH6|CH7|CH8|CH9|CH10|CH11|CH12

+## Traxxas - *43*
+Receiver 6519
+
+Extended limits supported
+
+CH1|CH2|CH3|CH4
+---|---|---|---
+AUX3|AUX4|THROTTLE|STEERING
+
 ## WFLY - *40*
 Receivers: WFR04S, WFR07S, WFR09S

@@ -565,6 +633,13 @@ CH12|CH13
 ----|----
 TAKE_OFF|EMG_STOP

+### Sub_protocol DHD_D4 - *4*
+Model: DHD D4
+
+CH12|CH13
+----|----
+TAKE_OFF|EMG_STOP
+
 ## BUGSMINI - *42*
 Models: MJX Bugs 3 Mini and 3H

@@ -581,7 +656,9 @@ ANGLE: angle is +100%, acro is -100%
 ### Sub_protocol BUGSMINI - *0*

 ### Sub_protocol BUGS3H - *1*
-
+CH11|
+---|
+ALTHOLD|

 ## Cabell - *34*
 Homegrown protocol with variable number of channels (4-16) and telemetry (RSSI, V1, V2).
@@ -726,10 +803,16 @@ FMODE and AUX7 have 4 positions: -100%..-50%=>0, -50%..5%=>1, 5%..50%=>2, 50%..1

 ## FY326 - *20*

+### Sub_protocol FY326 - *0*
+Model: FY326 Q7 Quadcopter
+
 CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|CH9
 ---|---|---|---|---|---|---|---|---
 A|E|T|R|FLIP|RTH|HEADLESS|EXPERT|CALIBRATE

+### Sub_protocol FY319 - *1*
+Model: X6 FY319 Quadcopter (Needs Testing)
+
 ## FQ777 - *23*
 Model: FQ777-124 (with SV7241A)

@@ -738,19 +821,25 @@ CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8
 A|E|T|R|FLIP|RTH|HEADLESS|EXPERT

 ## GD00X - *47*
-Model: GD005 C-17 Transport and GD006 DA62
+Model: GD005 C-17 Transport, GD006 DA62 and ZC-Z50

 If the model does not respond well to inputs or hard to bind, you can try to set Power to Low. But this protocol is known to be problematic because it's using the xn297L emulation with a transmission speed of 250kbps therefore it doesn't work very well with every modules, this is an hardware issue with the accuracy of the components used and nothing we can do about it in the firmware.

-CH1|CH2|CH3|CH4|CH5|CH6
---|---|---|---|---|---
-A||T||TRIM|LED
+If a CC2500 rf component is available it will be used in place of the NRF24L01 which might fix the issue mentioned above. Option is used for fine frequency tuning like any CC2500 protocols. Check the [Frequency Tuning page](/docs/Frequency_Tuning.md) to determine it if necessary.

-### Sub_protocol V1 - *0*
-First model
+CH1|CH2|CH3|CH4|CH5|CH6|CH7
+---|---|---|---|---|---|---
+A||T||TRIM|LED|RATE

-### Sub_protocol V2 - *1*
-New model
+TRIM: either use this channel for trim only or add a mixer with aileron to increase the roll rate.
+
+RATE: -100% high rate, +100% low rate
+
+### Sub_protocol GD_V1 - *0*
+First generation of GD models, ZC-Z50
+
+### Sub_protocol GD_V2 - *1*
+New generation of GD models

 ## GW008 - *32*
 Model: Global Drone GW008 from Banggood
@@ -834,6 +923,17 @@ ARM|

 ### Sub_protocol FQ777_951 - *3*

+## KF606 - *49*
+Model: KF606
+
+If the model does not respond well to inputs or hard to bind, you can try to set Power to Low. But this protocol is known to be problematic because it's using the xn297L emulation with a transmission speed of 250kbps therefore it doesn't work very well with every modules, this is an hardware issue with the accuracy of the components used and nothing we can do about it in the firmware.
+
+If a CC2500 rf component is available it will be used in place of the NRF24L01 which might fix the issue mentioned above. Option is used for fine frequency tuning like any CC2500 protocols. Check the [Frequency Tuning page](/docs/Frequency_Tuning.md) to determine it if necessary.
+
+CH1|CH2|CH3|CH4|CH5
+---|---|---|---|---
+A||T||TRIM
+
 ## MJXQ - *18*
 Autobind protocol

@@ -855,6 +955,8 @@ Only 3 TX IDs available, change RX_Num value 0..2 to cycle through them

 If the model does not respond well to inputs or hard to bind, you can try to set Power to Low. But this protocol is known to be problematic because it's using the xn297L emulation with a transmission speed of 250kbps therefore it doesn't work very well with every modules, this is an hardware issue with the accuracy of the components used and nothing we can do about it in the firmware.

+If a CC2500 rf component is available it will be used in place of the NRF24L01 which might fix the issue mentioned above. Option is used for fine frequency tuning like any CC2500 protocols. Check the [Frequency Tuning page](/docs/Frequency_Tuning.md) to determine it if necessary.
+
 ### Sub_protocol H26WH - *5*
 CH6|
 ---|
@@ -862,7 +964,7 @@ ARM|

 Only 1 TX ID available

-### Sub_protocol H26WH - *6*
+### Sub_protocol PHOENIX - *6*
 CH6|
 ---|
 ARM|
@@ -880,6 +982,7 @@ Models: MT99xx
 Models: Eachine H7, Cheerson CX023
 ### Sub_protocol YZ - *2*
 Model: Yi Zhan i6S
+
 Only one model can be flown at the same time since the ID is hardcoded.

 If the model does not respond well to inputs or hard to bind, you can try to set Power to Low. But this protocol is known to be problematic because it's using the xn297L emulation with a transmission speed of 250kbps therefore it doesn't work very well with every modules, this is an hardware issue with the accuracy of the components used and nothing we can do about it in the firmware.
@@ -913,6 +1016,21 @@ CH1|CH2|CH3|CH4|CH5
 ---|---|---|---|---
 A|E|T|R|Warp

+## Potensic - *51*
+Models: Potensic A20
+
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8
+---|---|---|---|---|---|---|---
+A|E|T|R|TAKE_OFF/LANDING|EMERGENCY|MODE|HEADLESS
+
+TAKE_OFF/LANDING: momentary switch -100% -> +100%
+
+EMERGENCY: Stop +100%
+
+MODE: Beginner -100%, Medium 0%, Advanced +100%
+
+HEADLESS: Off -100%, On +100%
+
 ## Q2X2 - *29*
 ### Sub_protocol Q222 - *0*
 Models: Q222 v1 and V686 v2
@@ -963,6 +1081,12 @@ ARM|FLIP

 ARM is 3 positions: -100%=land / 0%=manual / +100%=take off

+## Redpine - *50*
+[Link to the forum](https://www.rcgroups.com/forums/showthread.php?3236043-Redpine-Lowest-latency-RC-protocol)
+
+### Sub_protocol FAST - *0*
+### Sub_protocol SLOW - *1*
+
 ## Shenqi - *19*
 Autobind protocol

@@ -1080,11 +1204,24 @@ CH10|CH11|CH12
 ---|---|---
 Start/Stop|EMERGENCY|CAMERA_UP/DN

+## V761 - *48*
+Model: Volantex V761 and may be other
+
+Warning: Only 3 IDs, you can cycle through them using RX_Num.
+
+CH1|CH2|CH3|CH4|CH5
+---|---|---|---|---
+-|E|T|R|GYRO
+
+Gyro: -100%=Beginer mode (Gyro on, yaw and pitch rate limited), 0%=Mid Mode ( Gyro on no rate limits), +100%=Mode Expert Gyro off
+
 ## V911S - *46*
 Models: WLtoys V911S, XK A110

 If the model does not respond well to inputs or hard to bind, you can try to set Power to Low. But this protocol is known to be problematic because it's using the xn297L emulation with a transmission speed of 250kbps therefore it doesn't work very well with every modules, this is an hardware issue with the accuracy of the components used and nothing we can do about it in the firmware.

+If a CC2500 rf component is available it will be used in place of the NRF24L01 which might fix the issue mentioned above. Option is used for fine frequency tuning like any CC2500 protocols. Check the [Frequency Tuning page](/docs/Frequency_Tuning.md) to determine it if necessary.
+
 CH1|CH2|CH3|CH4|CH5
 ---|---|---|---|---
 A|E|T|R|CALIB
@@ -1103,6 +1240,15 @@ A|E|T|R|FLIP|LIGHT|PICTURE|VIDEO|HEADLESS
 ### Sub_protocol NIHUI - *4*
 Same channels assignement as above.

+## ZSX - *52*
+Model: JJRC ZSX-280
+
+Autobind protocol
+
+CH1|CH2|CH3|CH4|CH5
+---|---|---|---|---
+||T|R|LIGHT
+
 # OpenLRS module

 ## OpenLRS - *27*
--- a/docs/Advanced_Debug.md
+++ b/docs/Advanced_Debug.md
@@ -0,0 +1,19 @@
+# Enable the STM32 module serial debug feature
+
+To enable serial debug on your module you must know how to buid the firmware from the source code available on this GitHub. To do so follow this page: [Compiling and programming the STM32 module](Compiling_STM32.md).
+
+Procedure:
+1. Upload the debug firmware to the module:
+<img src="images/Debug1.png" />
+
+iRangeX+, Banggood and old Jumper 4in1 modules|Recent Jumper 4in1 modules with built-in CP2102|FTDI
+----------------------------------------------|-----------------------------------------------|----
+Use the Debug Option: "Native USB Debugging"|Use the Debug Option: "Serial/FTDI Debugging"|Use the Debug Option: "Serial/FTDI Debugging"
+Do not disconnect the USB cable. In case you have to do it, you have to connect the module, close and reopen the Serial Monitor to get the module working otherwise the status LED will do a [Fast double blink](Troubleshooting.md).|Do not disconnect the USB cable. In case you have to do it, you have to power the TX first, then connect the USB cable to the module and relaunch the Serial monitor.|No restrictions apart from relaunching the Serial monitor if you disconnect the FTDI from the PC.
+
+2. Power on the TX
+1. Open in the Arduino IDE the Serial Monitor: Tools->Serial Monitor or Ctrl+Shift+M<br> <img src="images/Serial_Monitor_1.png" />
+1. Make sure the settings at the bottom of the Serial Monitor window are the same as the picture above especially the baud rate set to 115200 baud
+1. The Serial Monitor window should show the module booting, selection of a different protocol and more depending on the protocol currently loaded<br> <img src="images/Serial_Monitor_2.png" />
+1. At this stage you can test whatever is needed or have been instructed to do. You can easily select text in the window to copy and paste it on the forum or in a text file.
+1. **Important: to use your module normally and before flying you must reupload the firmware as you usually do with the Debug Option set to "None"**
--- a/docs/Advanced_Topics.md
+++ b/docs/Advanced_Topics.md
@@ -1,11 +1,17 @@
-# Advanced Topics {This page is currently a proof of concept}
+# Advanced Topics
 Warning: the topics on this page are not for the fainthearted.  It is strongly recommended that you have some experience in getting up and runnning with your module before you dive in there.  On the other hand what is described on this page are some very useful options that could greatly increase the value and the enjoyment of your Multiprotocol module.

+# Enable STM32 module serial debug 
+This document describes how to enable serial debug for STM32 MULTI-modules.  This can be useful in case of issues with a protocol or to reverse a protocol based on the XN297L RF component.  See the [MULTI-Module Serial Debug](Advanced_Debug.md) page for more details.
+
+# XN297L dump feature 
+This document describes how to dump packets sent from a TX using a XN297L RF compatible component over the air on a STM32 MULTI-modules.  This can be useful to get details on a protocol or even fully reverse a protocol as used in many remote controls lately.  See the [MULTI-Module XN297L Dump](Advanced_XN297Ldump.md) page for more details.
+
+# EEPROM Backup and Restore
+This document describes how to back up and restore the EEPROM for both Atmega328p and STM32 MULTI-modules.  This can be useful if cloning a module, or to preserve settings.  See the [MULTI-Module EEPROM](EEPROM.md) page for more details.
+
 # Telemetry in PPM mode
 It is possible to access the telemetry stream coming from the receiver through the MULTI-module. This document describes a simple bluetooth module to stream telemetry information to a mobile device like an Android smartphone or tablet.  The method may be generalized to feed telemetry to the transmitter if the transmitter has the capabilities to process the information.  This is very useful with modules used in the PPM mode with transmitters that do not support telemetry.  See the [Advanced Bluetooth Telemetry](Advanced_Bluetooth_Telemetry.md) page for more details.  

 # Manually setting fuses on ATmega328
 This document describes a relatively simple process to set the fuses on ATmega328.   See the [Advanced Manually Setting ATmega328 Fuses](Advanced_Manually_Setting_ATmega328_Fuses.md) page for more details.  
-
-# EEPROM Backup and Restore
-This document describes how to back up and restore the EEPROM for both Atmega328p and STM32 MULTI-modules.  This can be useful if cloning a module, or to preserve settings.  See the [MULTI-Module EEPROM](EEPROM.md) page for more details.
--- a/docs/Advanced_XN297Ldump.md
+++ b/docs/Advanced_XN297Ldump.md
@@ -0,0 +1,16 @@
+# XN297L dump feature
+
+To get the XN297L dump feature working on your module you must know:
+1. How to buid the firmware from the source code available on this GitHub. To do so follow this page: [Compiling and programming the STM32 module](Compiling_STM32.md).
+1. How to enable serial debug [MULTI-Module Serial Debug](Advanced_Debug.md).
+
+Procedure to use the XN297L dump feature:
+1. Start the Multi module in serial debug mode with the Arduion IDE Serial Monitor open<br> <img src="images/Serial_Monitor_2.png" />
+1. Select the protocol 63 or "Custom 63" to enable the XN297L Dump protocol
+1. This protocol parameters are:
+   * sub_protocol or type or the second number after "Custom 63" is used to set the transmission speed: 0=250Kbps, 1=1Mbps and 2=2Mbps. Any other value will default to 1Mbps.
+   * RX_num or Receiver number sets the address length 3, 4 or 5 bytes. Any other value will default to an address length of 5 bytes.
+   * option sets the RF channel number used to receive packets between 0..84 . A value of -1 will automatically scan all channels one by one. Any other value will default to the RF channel 0.
+
+Examples:
+TBC
--- a/docs/Arduino_IDE_Boards.md
+++ b/docs/Arduino_IDE_Boards.md
@@ -40,6 +40,54 @@ The board definitions are installed using the Arduino IDE Boards Manager.
    * **Multi 4-in-1 (Atmega328p, 3.3V, 16MHz)** for the Atmega module
    * **Multi 4-in-1 (OrangeRX)** for the OrangeRX module

+## Install device drivers
+
+### Windows 7 or newer:
+1. If you haven't already done so, clone or download and unpack the Multiprocol source
+1. Open the folder where you unzipped or cloned the Multiprotocol project
+1. Browse to **\BootLoaders\Boards\Windows**
+1. Run **install-drivers.bat**
+1. Follow the prompts to install the two drivers
+
+### Windows XP or older
+1. Download and install the legacy Windows XP drivers from [here](https://github.com/rogerclarkmelbourne/Arduino_STM32/tree/master/drivers/win/win_xp_legacy)
+
+**NOTE:** If you have installed the drivers and your module is not detected as a Maple device it most likely does not have a USB bootloader installed. Ready-made modules from Banggood **do not** come with a USB bootloader installed.  You will need to follow the procedure to upload using a USB-to-serial adapter one time before you can upload firmware using the USB port.
+
+### Jumper JP4IN1 drivers
+The driver for the Jumper JP4IN1 module, the Silicon Labs CP210x driver, can be downloaded from here: https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers
+
+### Other USB-to-serial device drivers
+Other drivers may be needed if you are using an external USB-to-serial adapter. Consult the documentation for your adapter.
+
+Windows 10 includes drivers for many common serial devices, including many USB-to-serial adapters, so check Device Manager to see if your device is recognised.
+
+### Mac OS X
+Uploading via USB requires the [libusb library](https://libusb.info/) to be installed.  The easiest way to install the library is using the [Homebrew package manager for macOS](https://brew.sh/) by executing the two lines given below in a Terminal.
+
+Install Homebrew:
+
+    `/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"`
+
+Once Homebrew is installed, use it to install libusb:
+
+    `brew install libusb`
+
+### Linux
+Permissions must be configured to allow access to serial devices.
+1. If you haven't already done so, clone or download and unpack the Multiprocol source
+1. Open a Terminal and change to the directory where you have cloned or unzipped the Multiprotocol source
+1. Run the following commands:
+
+    ```
+    sudo cp -v BootLoaders/Boards/Linux/45-maple.rules /etc/udev/rules.d/45-maple.rules
+    sudo chown root:root /etc/udev/rules.d/45-maple.rules
+    sudo chmod 644 /etc/udev/rules.d/45-maple.rules
+    sudo udevadm control --reload-rules
+    sudo usermod -a -G plugdev $USER
+    sudo usermod -a -G dialout $USER
+    ```
+
 ## Compiling and Uploading
 Refer to the hardware-specific pages for information on compiling the firmware and uploading it to the multiprotocol module:

--- a/docs/Compiling_STM32.md
+++ b/docs/Compiling_STM32.md
@@ -1,33 +1,41 @@
-# Compiling and Programming (STM32)
+# Compiling and Flashing (STM32)

-Multiprotocol firmware is compiled using the Arduino IDE. The guide below will walk you through all the steps to compile and upload your customized firmware.
+Multiprotocol modules can be flashed with a precompiled firmware file (Option 1 and 2) or you can compile and upload your customized firmware using the Arduino IDE (Option 3).

 **These instructions are for the STM32 version of the Multiprotocol module.**  If you are Compling for the Arduino ATmega328p version of the Multiprotocol Module please go to the dedicated [ATmega328](Compiling.md) page.

 ## Index
 1. [Tools Required](#tools-required)
-1. [Preparation](#preparation)
+1. [Option 1 - Update firmware using precompiled binaries](#option-1---update-firmware-using-precompiled-binaries)
+1. [Option 2 - Flash from TX](#option-2---flash-from-tx)
+1. [Option 3 - Compiling and updating firmware](#option-3---compiling-and-updating-firmware)
+   1. [Preparation](#preparation)
   1. [Install the Arduino IDE](#install-the-arduino-ide)
   1. [Download the Multiprotocol source and open the project](#download-the-multiprotocol-source-and-open-the-project)
   1. [Install the Multi 4-in-1 board](#install-the-multi-4-in-1-board)
   1. [Configure the Arduino IDE](#configure-the-arduino-ide)
-1. [Configure the firmware](#configure-the-firmware)
-1. [Verify the firmware](#verify-the-firmware)
-1. [Preparing to upload the firmware](#preparing-to-upload-the-firmware)
-   1. [Select an upload method](#select-an-upload-method)
-1. [Upload via Serial inc. Bootloader (FTDI)](#upload-via-serial-inc-bootloader-ftdi)
-1. [Flash from TX](#flash-from-tx)
-1. [Upload via USB](#upload-via-usb)
-   1. [Install the Maple USB Drivers](#install-the-maple-usb-drivers)
+   1. [Configure the firmware](#configure-the-firmware)
+   1. [Verify the firmware](#verify-the-firmware)
+   1. [Connect the module](#connect-the-module)
+   1. [USB Port](#usb-port)
+   1. [USB-to-Serial adapter](#usb-to-serial-adapter)
   1. [Upload the firmware](#upload-the-firmware)
-1. [Precompiled Binaries](#flashing-pre-compiled-binaries)
 1. [Troubleshooting](#troubleshooting)

 ## Tools required

-**Notes**:
-* The Vantac MPM Lite module most likely already has the USB Bootloader flashed on it. You can directly use the [upload via USB](#upload-via-usb) method. Early modules' bootloader was however not booting everytime, if this is the case you need to upgarde it.
-* The latest jumper modules have an integrated FTDI appearing as a CP2102 device on the computer. You therefore don't need the FTDI adapter below and don't need to open your module to flash it.
+Tools are only required if a multi module does not have a USB port, a working bootloader or an integrated FTDI adapter:
+* The latest iRangeX IRX4+ modules most likely already have the USB Bootloader flashed on it. You therefore don't need the FTDI adapter below and don't need to open your module to flash it.
+* The latest Jumper modules have an integrated FTDI appearing as a CP2102 device on the computer. You therefore don't need the FTDI adapter below and don't need to open your module to flash it.
+* The Vantac MPM Lite module already has the USB Bootloader flashed on it. You therefore don't need the FTDI adapter below and don't need to open your module to flash it. **Modules' bootloader however might not be booting everytime depending on the radio, if this is the case you need to upgrade it.**
+
+You are still unsure if your module can be flashed without tools or opening it? Here is how to quickly check:
+* Power off the TX
+* Connect a USB cable to the module, if the module does not have a USB port then you must open the module to flash it using an external FTDI
+* Connect the cable to the PC and power on the the TX
+* If the PC does not complain about a none working device being plugged then you are good to upgrade via USB directly without the need of any tools or opening the module.
+
+Your multi module is not USB upgradable ready, here is what you need:

 | **3.3V USB-TTL Adapter** | **4-pin Serial Programming Header** |
 |:---:|:--:|
@@ -44,9 +52,36 @@ The 4-pin header needs to be soldered onto the board as indicated by the red rec

 **Note:** The Banggood STM32 module most likely already has the header pin in place.

-## Preparation
+## Option 1 - Update Firmware using Precompiled Binaries
+If you don't need/want to customize the multi module firmware then you can use pre-compiled binaries available [here](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/releases).
+
+**STM32 Builds (file names beginning with 'Multi-STM_')**
+ -   All radio modules and protocols are included in all builds
+ -   Files with TXFLASH in the name are built with a bootloader for flashing from a transmitter OR via the module's USB port (eg. Multi-STM_TXFLASH_INV-vX.X.X.XX.bin)
+ -   Files with FTDI in the name are built without a bootloader for flashing using an FTDI adapter (eg. Multi-STM_FTDI_INV-vX.X.X.XX.bin)
+ -   OpenTx/JumperTX version (files with OPENTX in the name) have the MULTI_TELEMETRY parameter enabled (eg. Multi-STM_TXFLASH_INV_OPENTX-vX.X.X.XX.bin or Multi-STM_FTDI_INV_OPENTX-vvX.X.X.XX.bin)
+
+[Flash-Multi](https://github.com/benlye/flash-multi) is the recommended Windows utility for flashing pre-compiled firmware to any STM32-based Multiprotocol TX module. Firmware upload can be performed using the built-in USB connection or via an external FTDI adapter.
+
+<p align="center">
+  <img src="https://github.com/benlye/flash-multi/raw/master/img/flash-multi.jpg">
+</p>
+
+After a succesful flash your Module is now updated to the newer version firmware using the most common options. To change specific configured options you would need to use [Option-3](#option-3---compiling-and-updating-firmware), Compile using Arduino IDE and your desired upload method. 
+ 
+## Option 2 - Flash from TX
+1. If you don't need/want to customize the multi module firmware then you can use pre-compiled binaries available [here](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/releases).
+2. If you are compiling the firmware yourself in the Arduino environment with [Option-3](#option-3---compiling-and-updating-firmware), do the following to export the binary:
+- Click **Sketch -> Export compiled Binary**, or press **Ctrl+Alt+S**
+- Locate the file named **multi-stm-x.x.x.x.bin** in the **Multiprotocol source folder** folder (x.x.x.x is the multi version)
+3. Follow the instructions [here](/docs/Flash_from_Tx.md) to upload the firmware using your radio
+
+## Option 3 - Compiling and Updating Firmware
+### Preparation
+Multiprotocol firmware can be compiled and flashed with your customized firmware using the Arduino IDE. The guide below will walk you through all the steps in many details, don't be afraid by the length it is in fact simple!
+
 ### Install the Arduino IDE
-1. Download and install the Arduino IDE. The currently supported Arduino version is 1.8.5, available for [Windows]( https://www.arduino.cc/download_handler.php?f=/arduino-1.8.5-windows.exe), [Mac OSX](https://www.arduino.cc/download_handler.php?f=/arduino-1.8.5-macosx.zip) and [Linux (64-bit)](https://www.arduino.cc/download_handler.php?f=/arduino-1.8.5-linux64.tar.xz)
+1. Download and install the Arduino IDE. The currently supported Arduino version is 1.8.9, available for [Windows]( https://www.arduino.cc/download_handler.php?f=/arduino-1.8.9-windows.exe), [Mac OSX](https://www.arduino.cc/download_handler.php?f=/arduino-1.8.9-macosx.zip) and [Linux (64-bit)](https://www.arduino.cc/download_handler.php?f=/arduino-1.8.9-linux64.tar.xz)
 1. It is recommended to upgrade Java to the [latest version](https://www.java.com/en/download/)

 ### Download the Multiprotocol source and open the project
@@ -55,24 +90,24 @@ The 4-pin header needs to be soldered onto the board as indicated by the red rec
   1. Clone the project using Git or Github Desktop, then
 1. Double-click the **Multiprotocol.ino** file in the **Multiprotocol** folder to open the project in the Arduino IDE

-**Important note for Windows users:** You must download or unzip the Multiprotocol source in a folder which has no spaces in the path.  If you have spaces in your username **do not** use a sub-folder of your user directory.  This is due to a [bug in the Arduino IDE](https://github.com/arduino/arduino-builder/issues/316), caused by an [issue in Go](https://github.com/golang/go/issues/17149).
-
 ### Install the Multi 4-in-1 board
 1. Follow [these instructions](Arduino_IDE_Boards.md) to install the **Multi 4-in-1 STM32 Board** in the Arduino IDE

 ### Configure the Arduino IDE
 1. Under **Tools -> Board** select **Multi 4-in-1 (STM32FC103)**
-1. Under **Tools -> Upload method** select **Auto Detect (USB or Serial)** <- more details on this subject later on
-1. Under **Tools -> Programmer** select **stm32flash (FTDI)**
+1. Under **Tools -> Debug Option** select **None**
+
+### Configure the firmware
+Make any changes you require to the firmware.

-## Configure the firmware
 The STM32 module has more than enough flash space for all the available protocols so, unlike the Atmega328p-based module, it is not necessary to disable unused protocols.

 You can still disable protocols if you wish, and you may also enable or disable other optional Multiprotocol features.
-## Verify the firmware
+
+### Verify the firmware
 To check that the program will compile correctly and fit in the STM32 click **Sketch -> Verify/Compile**, or press **Ctrl+R**.

-If there are errors,  carefully read it, go to the line number indicated and correct your typo.
+If there are errors, carefully read it, go to the line number indicated and correct your typo.

 If there are no errors and you see output like this:
 ```
@@ -81,29 +116,16 @@ Global variables use 4064 bytes (19%) of dynamic memory, leaving 16416 bytes for
 ```
 You can proceed to the next step.

-## Preparing to upload the firmware
-If you have already burnt the bootloader, and are simply recompiling firmware to re-flash using your TX or USB cable, you can skip this step and go straight to [Flash from TX](#flash-from-tx) or [Upload via USB](#upload-via-usb).
+### Connect the module
+#### USB port
+Ensure that you [installed the necessary drivers](https://github.com/benlye/DIY-Multiprotocol-TX-Module/blob/doc-updates/docs/Arduino_IDE_Boards.md#install-device-drivers).

-STM modules, until now, do not come with a preloaded bootloader which makes the USB port unusable and discovered by a computer as unknown device. **For the first time use, you must use the upload method Upload via Serial inc. Bootloader (FTDI)** independently of what method you wish to use in future.
+If your Multiprotocol module has a USB port, connect it to the computer.  With the drivers installed your computer should detect the module as a COM port.  If the device appears correctly (check in **Device Manager**) you can proceed to the next step and [upload the firmware](#upload-the-firmware).  If not, you will need to flash your module one time using a USB-to-serial adapter (also known as an FTDI adapter).

-The latest Jumper 4-in-1 modules come with a USB port but it's in fact a built in FTDI appearing on the computer as a CP2102 serial device. You should use the method **Upload via Serial inc. Bootloader** instead of Upload via USB. 'Flash from TX' is supported once the bootloader is installed. 
+**Note:** Some modules require external power in order for the USB port to work.  If your module does not power on with USB power alone, install it in the transmitter and switch the transmitter on.  It is generally safe for the module to recieve power from both USB and the transmitter.

-### Select an Upload Method
-There are a total of five firmware upload methods to an STM32 module:
-* **Flash from TX** - uses the bootloader mode of radios running ersky9x or OpenTX to upload the firmware. The radio needs to run the latest bootloader with the Multi Flash app.
-* **Auto Detect (USB or Serial)** - Detects automatically if the upload method is USB or Serial. You need to configure the correct COM port in the IDE which is created when plugging the module.
-* **Upload via USB** - uses the USB upload method through the USB plug of the module. It requires the presence of a bootloader in the module.
-* **Upload via Serial inc. Bootloader (FTDI)** - uses the serial interface of the module via a USB-to-TTL adapter to install the bootloader and firmware.
-* **Upload via Serial (FTDI)** - uses the serial interface of the module via a USB-to-TTL adapter to install the firmware.
-
-You will most likely use only once on a brand new module the **Upload via Serial inc. Bootloader (FTDI)** method to load the bootloader+firmware. Any successive updates will be done using either **Auto Detect (USB or Serial)** or **Flash from TX** depending on your preference.
-
-1. Under **Tools -> Upload Method** select an upload method
-
-The rest of this process will vary depending on the upload method you selected.
-
-## Upload via Serial inc. Bootloader (FTDI)
-It is **strongly** recommended that you power your module from the transmitter when flashing it. This ensures that the module cannot be inadvertently supplied with 5V, which will damage the RF modules. This guide assumes that you will follow that advice, and instructs you to leave the V+ pin on the USB-to-TTL adapter disconnected. You may choose to ignore that advice at your own risk!
+#### USB-to-Serial adapter
+It is **strongly** recommended that you power your module from the transmitter when flashing it using a USB-to-serial adapater. This ensures that the module cannot be inadvertently supplied with 5V, which will damage the RF modules. This guide assumes that you will follow that advice, and instructs you to leave the V+ pin on the USB-to-TTL adapter disconnected. You may choose to ignore that advice at your own risk!

 The wiring for the USB-to-TTL adapter is:
 * USB-to-TTL TX pin <-> Module RX pin
@@ -129,162 +151,14 @@ In order to flash the bootloader the **BOOT0** jumper must be installed connecti
 | Bridge pins 1 and 2 as shown by the yellow jumper wire. | Bridge the left-most pins of the 6-pin header as shown by the yellow jumper. | Bridge pins 1 and 2 as shown by the blue jumper. | Bridge the BOOT0 pin to the adjacent 3.3V pin as shown by the yellow jumper. If it doesn't work move the jumper to bridge the two left hand pins (BOOT0 and directly above). | Bridge pins 1 and 2 as shown by the red jumper wire. | Brdige the two pins next to the usb port labelled with Boot0 |
 | <img src="images/diy-ch340g.jpg" height="200"/> | <img src="images/bg-stm32-boot0.jpg" height="200"/>  | <img src="images/irx4-boot0.jpg" height="200"/>  | <img src="images/irx4plus-boot0.jpg" height="200"/> | <img src="images/Jumper-ch340g.jpg" height="200"/> | <img src="images/mpmlite-boot0.jpg" width="200" /> |

-1. If on Linux, ensure you have permissions to access serial interfaces as described in [Install the Maple USB drivers](#install-the-maple-usb-drivers)
+1. If on Linux, ensure you have permissions to access serial interfaces as described [here](https://github.com/benlye/DIY-Multiprotocol-TX-Module/blob/doc-updates/docs/Arduino_IDE_Boards.md#linux)
 1. Install the **BOOT0** jumper as described above.
 1. Switch on the transmitter
-1. Verify that you have selected the upload method **Upload via Serial inc. Bootloader (FTDI)** under **Tools -> Upload Method**
-1. Verify that you have selected **stm32flash (FTDI)** as the programmer under **Tools -> Programmer**
-1. Verify that the USB-to-TTL adapter is correctly connected to your module and you have selected the correct port under **Tools -> Port**
-1. In the Arduino IDE click **Sketch -> Upload**, or press **Ctrl+U**
-
-Output will look similar to this:
-```
-C:\Users\blye\AppData\Local\Arduino15\packages\multi4in1\hardware\STM32F1\1.0.0/tools/win/serial_upload.bat COM4 0x0 C:\Users\blye\AppData\Local\Arduino15\packages\multi4in1\hardware\STM32F1\1.0.0/bootloaders/Multi4in1/StmMultiUSB.bin 
-stm32flash -v -g 0x0 -b 57600 -w C:\Users\blye\AppData\Local\Arduino15\packages\multi4in1\hardware\STM32F1\1.0.0\bootloaders\Multi4in1\StmMultiUSB.bin COM4 
-
-stm32flash 0.4
-
-http://stm32flash.googlecode.com/
-
-Using Parser : Raw BINARY
-Interface serial_w32: 57600 8E1
-Version      : 0x22
-Option 1     : 0x00
-Option 2     : 0x00
-Device ID    : 0x0410 (Medium-density)
- RAM        : 20KiB  (512b reserved by bootloader)
- Flash      : 128KiB (sector size: 4x1024)
- Option RAM : 16b
- System RAM : 2KiB
-Write to memory
-Erasing memory
-
-Wrote and verified address 0x08000100 (3.56%) 
-Wrote and verified address 0x08000200 (7.13%) 
-...
-Wrote and verified address 0x08001c00 (99.78%) 
-Wrote and verified address 0x08001c10 (100.00%) Done.
-
-Starting execution at address 0x08000000... done.
-```
-Assuming the process is successful:
-1. Power off the transmitter
-1. Remove the **BOOT0** jumper
-1. Disconnect the USB-to-TTL adapter
-1. Your module is ready to use, enjoy!!!
-
-## Flash from TX
-1. The MPM module must have a recent bootloader installed
-1. Click **Tools -> Upload method -> Flash from TX**
-1. Click **Sketch -> Export compiled Binary**, or press **Ctrl+Alt+S**
-1. Locate the file named **multi-stm-x.x.x.x.bin** in the **Multiprotocol source folder** folder (x.x.x.x is the multi version)
-1. Follow the instructions [here](/docs/Flash_from_Tx.md) to upload the firmware using your radio
-1. Once done your module is ready to be used
-
-## Upload via USB
-In order for the module to be correctly identified it is necessary and only once to do some operations based on your operating system.
-
-### Install the Maple USB drivers
-##### Windows 7 or newer:
-1. Open the folder where you unzipped or cloned the Multiprotocol project
-1. Browse to **\BootLoaders\Boards\Windows**
-1. Run **install-drivers.bat**
-1. Follow the prompts to install the two drivers
-
-##### Windows XP or older
-1. Download and install the legacy Windows XP drivers from [here](https://github.com/rogerclarkmelbourne/Arduino_STM32/tree/master/drivers/win/win_xp_legacy)
-
-**NOTE:** If you have installed the drivers and your module is not detected as a Maple device it most likely does not have a USB bootloader installed. Ready-made modules from Banggood **do not** come with a USB bootloader installed.  You will need to follow the procedure to [Burn a USB bootloader](#upload-via-serial-inc-bootloader-ftdi) before you can upload firmware.
-
-##### Mac OS X
-Uploading via USB requires the [libusb library](https://libusb.info/) to be installed.  The easiest way to install the library is using the [Homebrew package manager for macOS](https://brew.sh/) by executing the two lines given below in a Terminal.
-
-Install Homebrew:
-
-    /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
-
-Once Homebrew is installed, use it to install libusb:
-
-    brew install libusb
-
-##### Linux (64-bit)
-To execute any of the following commands you should use a Terminal (shell) with the current directory set to the location where you cloned or unpacked this project.
-
-You can do this by navigating to the project folder in the Files application then right clicking and selecting "Open in Terminal" from the menu that appears. This will open a Terminal where you will enter the commands indicated below.
-
-If you are using Ubuntu 16.04 LTS it is not necessary to download Maple USB drivers but your account must have permissions to communicate to the Maple USB system devices. To do this you must be in the group which can access USB devices and/or serial interfaces. This configuration must be done once after account creation/system install. You can do that by entering the following commands:
-
-    sudo usermod -a -G plugdev $USER
-    sudo usermod -a -G dialout $USER
-
-Any sudo operation requires administrator privileges and if your account is an administrator account (and it will be if you installed Ubuntu yourself) it will ask for your password.
-
-After entering these commands you must log out of Ubuntu completely and log back in. Simply closing the Terminal window and opening another will not work.
-
-The first command adds your user account to the group which can access connected USB devices. The second adds your account to the group which can access serial interfaces.
-
-The next steps will change your system's permissions rules so that users in the plugdev group can access attached USB devices.
-
-If necessary, open another Terminal window with the current directory set to the project directory as explained above. Then type the following commands into the Terminal:
-
-    sudo cp BootLoaders/Boards/Linux/45-maple.rules /etc/udev/rules.d/
-    sudo /etc/init.d/udev restart
-
-After adding yourself to the groups as above and installing and running the udev rules above your system will be configured so that your user account will always have access to serial and USB devices without requiring you run these steps again.

 ### Upload the firmware
-**Note:** Some modules require external power in order for the USB port to work.  If your module does not power on with USB power alone, install it in the transmitter and switch the transmitter on.  It is generally safe for the module to recieve power from both USB and the transmitter.
-
-1. Connect the USB cable to the Multiprotocol module
-1. Click **Tools -> Upload method -> Auto Detect (USB or Serial)**
-1. Select the correct COM port **Tools -> Port**, which should be labelled **COMx (Multi 4-in-1 (STM32F103CB))**.<p align="center"><img src="images/maple-serial-port-select.jpg"/></p>
 1. In the Arduino IDE click **Sketch -> Upload**, or press **Ctrl+U**

-**Note:** If the module appears as a **Maple DFU** for a module with only a bootloader, **Maple Serial** for a module with a bootloader and firmware then follow the same process by selecting any available COM port (you must select one, if you don't have one appearing plug any device that will create a com port (an Arduino board for example)).
-
-You should see output similar to this:
-```
-Sketch uses 68564 bytes (52%) of program storage space. Maximum is 131072 bytes.
-Global variables use 4064 bytes (19%) of dynamic memory, leaving 16416 bytes for local variables. Maximum is 20480 bytes.
-C:\Users\blye\AppData\Local\Arduino15\packages\multi4in1\hardware\STM32F1\1.0.0/tools/win/maple_upload.bat COM4 2 1EAF:0003 C:\Users\blye\AppData\Local\Temp\arduino_build_933551/Multiprotocol.ino.bin 
-maple_loader v0.1
-Resetting to bootloader via DTR pulse
-Reset via USB Serial Failed! Did you select the right serial port?
-Searching for DFU device [1EAF:0003]...
-Assuming the board is in perpetual bootloader mode and continuing to attempt dfu programming...
-
-Found it!
-
-Opening USB Device 0x1eaf:0x0003...
-Found Runtime: [0x1eaf:0x0003] devnum=1, cfg=0, intf=0, alt=2, name="STM32duino bootloader v1.0  Upload to Flash 0x8002000"
-Setting Configuration 1...
-Claiming USB DFU Interface...
-Setting Alternate Setting ...
-Determining device status: state = dfuIDLE, status = 0
-dfuIDLE, continuing
-Transfer Size = 0x0400
-bytes_per_hash=1371
-Starting download: [##################################################] finished!
-state(8) = dfuMANIFEST-WAIT-RESET, status(0) = No error condition is present
-Done!
-Resetting USB to switch back to runtime mode
-error resetting after download: usb_reset: could not reset device, win error: The system cannot find the file specified.
-```
-
-**Note:** The line `Reset via USB Serial Failed! Did you select the right serial port?` or a warning line stating that the device could not be reset is **not a problem**.
-
-## Flashing pre-compiled binaries
-Pre-compiled binaries are available [here](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/releases).
- **Multiprotocol_V1.X.X_STM32.bin** files are for transmitters with support for hardware telemetry inversion, such as Turnigy 9X, 9XR, 9X+.
- **Multiprotocol_V1.X.X_STM32_INV.bin** files are for tranismitters which require telemetry inverted in the module firmware, such as Taranis.
-
-If you want to flash a pre-compiled binary file (like the Release .bin files) you will use the same USB-to-TTL adapter as [above](#connect-the-programmer).  
-
-You will also need to download the **ST Flash Loader Demonstrator** from [here](http://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html)
-
-Run the **ST Flash Loader Demonstrator** program. There are many tutorials on the web on how to use this program, for example [here](http://www.scienceprog.com/flashing-programs-to-stm32-embedded-bootloader).
-
-## Troubleshooting
+# Troubleshooting
 You can report your problem using the [GitHub issue](https://github.com/midelic/DIY-Multiprotocol-TX-Module/issues) system or go to the [Main thread on RCGROUPS](http://www.rcgroups.com/forums/showthread.php?t=2165676) to ask your question.
 Please provide the following information:

--- a/docs/Flash_from_Tx.md
+++ b/docs/Flash_from_Tx.md
@@ -1,9 +1,9 @@
 # Flashing from the Transmitter

-For radios running ersky9x and OpenTX, there is an option to flash a precompiled firmware file to the multiprotocol module using the transmitter's Bootloader mode.
+For radios running erskyTx and OpenTX, there is an option to flash a precompiled firmware file to the multiprotocol module using the transmitter's Bootloader mode.

 ## Tools required
-* A compatible transmitter running an ersky9x bootloader v2.9 or newer. This is true for both OpenTX and ersky9x.
+* A compatible transmitter running an erskyTx bootloader v2.9 or newer. This is true for both OpenTX and erskyTx.
 * A precompiled multiprotocol firmware file (.hex for Atmega328p or .bin for STM32)
 * A **Flash from TX** bootloader installed on an Atmega328p or STM32 multiprotocol module
 * A means to get the firmware file onto the transmitter's SD card
@@ -18,11 +18,11 @@ For radios running ersky9x and OpenTX, there is an option to flash a precompiled
 1. If everything is correct you are ready to upgrade the Multimodule firmware

 ### Upgrade the bootloader and install app(s)
-1. Download the latest zip file of the [ersky9x firmware](https://openrcforums.com/forum/viewtopic.php?f=7&t=4676)
+1. Download the latest zip file of the [erskyTx firmware](https://openrcforums.com/forum/viewtopic.php?f=7&t=4676) or [this file for the T16](http://www.er9x.com/t16BootFlashMulti.zip).
 1. Extract the .bin file corresponding to your radio in your SD card `\FIRMWARE` directory
-1. Download the latest [Flash Multiprotocol Module app](http://www.er9x.com/Ersky9xapps.html) for your radio
+1. Download the latest [Flash Multiprotocol Module app](http://www.er9x.com/Ersky9xapps.html) for your radio. For the T16, it's in the previous file.
 1. Copy the .app file in a folder called `APPS` at the root of the SD card (if the directory does not exist create it)
-1. For ersky9x
+1. For erskyTx
   1. Power on the radio in `MAINTENANCE` mode while pushing both horizontals trims outwards (away from each others)
   1. Select `Update Bootloader`
   1. Select the ersky9x firmware matching your radio
--- a/docs/Models.md
+++ b/docs/Models.md
@@ -98,7 +98,7 @@ The next screen shows the mixer menu with the mode change on momentary switch SH
 <img src="images/Inductrix_Mixer.png" Width="600" Height="200" />  

 # Cheerson CX-20 / Quanum Nova
-<img src="http://uaequadcopters.com/images/products/Large/932-cheersoncx20dronquad.jpg" Width="200" Height="155" />
+<img src="images/cx20.jpg" Width="200" Height="155" />

 ## Channel Map

--- a/docs/Troubleshooting.md
+++ b/docs/Troubleshooting.md
@@ -15,6 +15,7 @@
 - **_Fast blink(on=0.1s,off=0.1s)_**: bind in progress
 - **_Slow blink(on=0.5s,off=0.5s)_**: serial has been selected but no valid signal is being seen on the RX pin.
 - **_Slower blink(on=1s,off=1s)_**: PPM has been selected but no valid signal is being seen on the PPM pin.
+- **_Fast double blink(on=0.1s,off=0.1s,on=0.1s,off=0.5s)_**: serial debugging is enabled and is waiting for a serial connection
 - **_On_**: Module is in normal operation mode (transmitting control signals).

 ## Protocol selection
--- a/docs/images/Debug1.png
+++ b/docs/images/Debug1.png
--- a/docs/images/Serial_Monitor_1.png
+++ b/docs/images/Serial_Monitor_1.png
--- a/docs/images/Serial_Monitor_2.png
+++ b/docs/images/Serial_Monitor_2.png
--- a/docs/images/cx20.jpg
+++ b/docs/images/cx20.jpg
--- a/docs/images/flash-multi.jpg
+++ b/docs/images/flash-multi.jpg
Author	SHA1	Message	Date
pascallanger	e783ce5788	Failsafe modification The following protocols are supporting failsafe: FrSkyX, Devo, WK2x01, SFHSS, HISKY/HK310 and AFHDS2A In Serial mode failsafe is configured on the radio itself. In PPM mode and only after the module is up and fully operational, press the bind button for at least 5sec to send the current stick positions as failsafe to the RX.	2019-09-27 16:20:43 +02:00
pascallanger	18af4a0724	AVR modules: Fix KF606, GD00X and Potensic	2019-09-26 15:51:28 +02:00
pascallanger	7e6ec1dc8d	Update FrSkyX_Rx_cc2500.ino Remove compilation warnings for AVR	2019-09-26 15:50:38 +02:00
pascallanger	4fbe0859e0	Update comments	2019-09-25 19:10:55 +02:00
pascallanger	b89c23fe7c	PPM channel remapping	2019-09-23 18:13:25 +02:00
goebish	e038c49ae9	Protocol FrskyX D16 RX frequency auto-tune (#270 ) * Add autotune during bind * Fix data phase	2019-09-23 08:11:06 +02:00
Ben Lye	bed02c9384	Update .travis.yml (#269 )	2019-09-22 14:17:23 -04:00
pascallanger	96bc4f7cdf	Revert Fix FrskyX failsafe hold/no pulse inversion	2019-09-22 20:00:04 +02:00
pascallanger	6503469ddd	Bump multi board version to the latest	2019-09-22 17:29:43 +02:00
pascallanger	61a1c3742c	Fix FrskyX failsafe hold/no pulse inversion	2019-09-22 17:12:00 +02:00
pascallanger	1fb2a38bc1	Hitec additional telemetry	2019-09-22 17:11:23 +02:00
pascallanger	22a0d79315	FrskyX_RX documentation	2019-09-22 17:05:46 +02:00
MRC3742	0cc72772a3	Repair sub protocol column listing errors for two Protocol (#268 )	2019-09-19 20:13:13 +02:00
Pascal Langer	11f4e636e3	AFHDS2A telemetry fix Discard RX config packets	2019-09-19 10:51:24 +02:00
pascallanger	fef1a2e041	Update Advanced_Debug.md	2019-09-19 09:07:14 +02:00
pascallanger	41a9c8e013	Update Advanced_Debug.md	2019-09-19 08:59:40 +02:00
Pascal Langer	c1ad02b792	Create Debug1.png	2019-09-19 08:55:20 +02:00
Pascal Langer	ab2315c951	FrSkyX: few cosmetic and optimization changes	2019-09-18 11:05:46 +02:00
goebish	7948e33cbc	Fix start channel (#267 )	2019-09-18 08:48:04 +02:00
goebish	2be2dce584	Protocol FrSky D16 receiver (#266 ) * Add skeleton for FrSkyX receiver protocol * Binds & receives data packets * Store bind information * Fix compilation * Bypass LNA since intended usage implies tx & rx are close together * Bind channel has FS_AUTOCAL * Add freq fine tune & low power mode (disable lna) * Add TX ID check * Retry longer until first packet is catched * Fix chanskip for first packet * Fix defines * Fix bind * Send channels to TX * Fix RSSI reading * Add missing static keyword * Fix Validate.h * Fix compilation	2019-09-17 23:35:19 +02:00
Ben Lye	69bdfe3dba	Update package_multi_4in1_board_index.json	2019-09-17 20:36:24 +01:00
Pascal Langer	d73d163a58	Update Validate.h	2019-09-17 09:53:18 +02:00
Ben Lye	48a52ae5b2	Update Multiprotocol.ino (#265 )	2019-09-17 09:37:18 +02:00
Pascal Langer	078dc2ab17	AFHDS2A telemetry AA and AC	2019-09-14 16:34:19 +02:00
Pascal Langer	6f4522caa6	Revert "AFHDS2A telemetry AA and AC" This reverts commit `3c76ce9f39`.	2019-09-14 16:31:27 +02:00
Pascal Langer	3c76ce9f39	AFHDS2A telemetry AA and AC	2019-09-14 16:27:07 +02:00
goebish	8601149051	Fix scanner telemetry (#262 ) * Fix scanner telemetry * Take several samples per channel, keep maximum value	2019-09-14 16:07:49 +02:00
pascallanger	d7ef15d435	Update Compiling_STM32.md	2019-09-12 16:08:20 +02:00
pascallanger	27e3645b56	Update Compiling_STM32.md	2019-09-12 15:55:08 +02:00
pascallanger	95eb4e1a22	Update Compiling_STM32.md	2019-09-12 15:54:18 +02:00
pascallanger	32ea07bf5a	Update Compiling_STM32.md	2019-09-12 15:51:58 +02:00
pascallanger	06272575c5	Flash from TX	2019-09-12 15:50:12 +02:00
Pascal Langer	edd6432d4c	Update Validate.h	2019-09-11 15:26:35 +02:00
Pascal Langer	303c4615e9	Fix scanner compilation issue	2019-09-11 12:23:36 +02:00
Pascal Langer	7d327c1622	Scanner 2.4GHz Thanks to Goebish for this spectrum analyzer. It will work soon with the OpenTX 2.3 Spectrum Analyser tool.	2019-09-10 23:37:54 +02:00
Ben Lye	6a74b83f98	Update .travis.yml	2019-09-08 14:40:59 +01:00
Ben Lye	c601c2dd98	Update .travis.yml	2019-09-08 14:25:52 +01:00
Ben Lye	c27b60749f	Update Travis CI script (#257 ) * Use latest STM32 board options * Use latest Arduino IDE * Fix build functions to return an error if the build fails * Modify the files that get exported to releases	2019-09-08 13:33:26 +01:00
Ben Lye	b3cb286088	Update package_multi_4in1_board_index.json	2019-09-07 18:54:27 +01:00
Ben Lye	361903e8ec	Doc updates for new board package (#256 )	2019-09-07 18:23:08 +01:00
Ben Lye	d72c69242d	Update package_multi_4in1_board_index.json Add AVR board v1.0.8 and STM32 board v1.1.5.	2019-09-06 19:43:10 +01:00
Ben Lye	539819fa0c	Accomodate new Debug Option setting in Arduino IDE (#255 ) Thanks, that's perfect!	2019-09-06 14:05:57 +02:00
Ben Lye	d80c218744	Add timeout to serial debug (#253 ) * Wait 30s for serial debug instead of waiting forever * Delay of 50ms to allow FTDI debugger to connect at startup	2019-09-05 08:33:01 +02:00
pascallanger	0603d220a9	T16 Flash from TX	2019-09-04 17:39:47 +02:00
pascallanger	e13fe56f47	Include the Jumper T16	2019-09-04 17:38:00 +02:00
pascallanger	acd7694485	Update Protocols_Details.md	2019-09-02 19:23:15 +02:00
pascallanger	7f50edacc8	Update Protocols_Details.md	2019-09-02 19:07:48 +02:00
pascallanger	5a4906c5b5	Update Protocols_Details.md	2019-09-02 19:06:34 +02:00
Pascal Langer	4e906757b9	XN297Dump fix enhanced unscramble mode	2019-08-24 22:39:27 +02:00
Pascal Langer	1f0b21e351	Fix GW008 protocol	2019-08-24 22:14:18 +02:00
Pascal Langer	2f3ea323c7	CHECK_FOR_BOOTLOADER now enabled by default in _config.h	2019-08-24 21:50:36 +02:00
Pascal Langer	d4e77c6499	XN297Dump: added enhanced packet mode	2019-08-24 21:37:26 +02:00
pascallanger	ffc56b049d	Update Advanced_Debug.md	2019-08-20 14:07:38 +02:00
pascallanger	ddac89d732	Update Advanced_Debug.md	2019-08-20 14:06:01 +02:00
Pascal Langer	fecf2805c7	WIP: Advanced topics	2019-08-20 14:01:56 +02:00
Pascal Langer	4dcc88ba32	Serial debug documentation	2019-08-18 18:44:36 +02:00
Pascal Langer	084308d8a4	Update Multi.txt	2019-08-18 17:08:27 +02:00
Pascal Langer	1ffb5c405b	New protocol: Flyzone Models compatible with TX FZ-410 Protocol 53 No sub protocol	2019-08-17 22:37:00 +02:00
Pascal Langer	ad29409407	New protocol ZSX Model JJRC ZSX-280 Protocol number 52 ,no sub protocol CH3: Throttle CH4: Rudder CH5: Light	2019-08-10 21:43:14 +02:00
Pascal Langer	6f33abb25e	New protocol Traxxas Protocol number: 43 Compatible with receivers 6519 Extended limits supported CH1=AUX3 CH2=AUX4 CH3=THROTTLE CH4=STEERING	2019-08-06 17:27:42 +02:00
Pascal Langer	2c9693389e	Fix DSM telemetry and global cyrf6936 freq tunning - Fixed DSM telemetry with some RXs (R720X) - Global frequency tunning for all protocols using the CYRF6936 by adjusting channel 15 when enabled - Changed default DSM_THROTTLE_KILL_CH to use channel 14	2019-08-01 14:23:08 +02:00
MRC3742	d3c82c4da4	Add option instructions to update STM module (#243 )	2019-07-18 10:34:46 +02:00
Pascal Langer	541a96e7b4	Merge branch 'master' of https://github.com/pascallanger/DIY-Multiprotocol-TX-Module	2019-07-04 10:37:42 +02:00
Pascal Langer	5b234a9cbc	Mandatory use of boards AVR 1.0.7 and STM32 1.1.4 solving path space issues	2019-07-04 10:37:25 +02:00
Ben Lye	24c3a62f3a	Update package_multi_4in1_board_index.json	2019-07-04 09:31:51 +01:00
Pascal Langer	23756a387a	XN297Dump: fix packet timer	2019-07-03 20:51:13 +02:00
Pascal Langer	efbd350dfd	GD00X: fix typo...	2019-07-03 18:27:39 +02:00
Pascal Langer	072e95c84e	Merge branch 'master' of https://github.com/pascallanger/DIY-Multiprotocol-TX-Module	2019-07-03 18:13:08 +02:00
Pascal Langer	4be26e7202	GD00X: add high/low rates	2019-07-03 18:07:18 +02:00
pascallanger	a616cbb95c	Update Protocols_Details.md	2019-07-03 18:05:54 +02:00
Pascal Langer	8aea9aa3dd	Added a common deadband conversion code Modified protocols: - GD00X applied on aileron - KF606 applied on aileron - POTENSIC applied on throttle	2019-07-03 17:39:05 +02:00
pascallanger	e4992bc917	Update Protocols_Details.md	2019-07-03 16:48:06 +02:00
pascallanger	000b3e97c7	Update Protocols_Details.md	2019-07-03 09:55:16 +02:00
pascallanger	cb91e19413	Update Compiling_STM32.md	2019-07-03 00:18:45 +02:00
pascallanger	c72e690085	Update Compiling_STM32.md	2019-07-02 23:32:27 +02:00
pascallanger	f1a4e659e7	Update Compiling_STM32.md	2019-07-02 23:28:02 +02:00
pascallanger	0d56d17d52	Update Compiling_STM32.md	2019-07-02 23:25:37 +02:00
pascallanger	96c89c8c97	Update Compiling_STM32.md	2019-07-02 23:12:26 +02:00
pascallanger	7df5a1f211	Update Compiling_STM32.md	2019-07-02 23:11:03 +02:00
pascallanger	8ae8e028c7	Update Compiling_STM32.md	2019-07-02 22:34:23 +02:00
pascallanger	581ad5f8f4	Update Compiling_STM32.md	2019-07-02 22:33:05 +02:00
pascallanger	977bae3750	Add files via upload	2019-07-02 22:28:43 +02:00
pascallanger	8a0161607e	Update Protocols_Details.md	2019-07-02 21:51:31 +02:00
Ben Lye	cd6a7bfc3a	Update package_multi_4in1_board_index.json Add new boards which resolves issue with spaces in the sketch path on Windows.	2019-06-27 15:50:44 +01:00
Pascal Langer	4671700b7d	Devo protocol: number of channels	2019-06-23 17:13:30 +02:00
pascallanger	840ca74407	Redpine changes (#240 ) * Change Looptimes state => bind_counter * minimize whitespace changes	2019-06-20 10:53:31 +02:00
Bryce Johnson	0d8a7e46de	Redpine changes (#240 ) * Change Looptimes state => bind_counter	2019-06-20 10:53:17 +02:00
pascallanger	8b9940b0f0	Redpine typo	2019-06-19 16:07:08 +02:00
Pascal Langer	521b819b8a	New protocol POTENSIC Model: A20 Protocol number: 51 Sub protocol: none Channels: - CH5 TAKE_OFF/LANDING: momentary switch -100% -> +100% - CH6 EMERGENCY: Stop +100% - CH7 MODE: MODE: Beginner -100%, Medium 0%, Advanced +100% - CH8 HEADLESS: Off -100%, On +100%	2019-06-19 11:25:21 +02:00
Bryce Johnson	208e9ef64b	minimize whitespace changes	2019-06-17 19:08:07 -06:00
Bryce Johnson	a7ea8e012e	Change Looptimes state => bind_counter	2019-06-17 19:01:27 -06:00
Pascal Langer	d940a7e49a	New Redpine protocol Protocol Redpine: 50 Sub protocol: Fast=0, Slow=1 Option=freq tunning	2019-06-17 17:16:39 +02:00
Pascal Langer	9d50171034	BUGS fix a bug...	2019-06-10 09:19:56 +02:00
Pascal Langer	701a5b9e28	Merge branch 'master' of https://github.com/pascallanger/DIY-Multiprotocol-TX-Module	2019-06-09 19:00:27 +02:00
Pascal Langer	d11785ef2d	V761... forgot to save the change before pushing...	2019-06-09 19:00:21 +02:00
pascallanger	f4a4d91ef8	V761 additional IDs	2019-06-09 15:06:29 +02:00
Pascal Langer	9514e47ed3	BUGS EEPROM clean: need to rebind BUGS and BUGSMINI	2019-06-09 14:51:21 +02:00
Pascal Langer	9461f2d632	V761 3rd ID	2019-06-09 14:50:17 +02:00
Pascal Langer	f6064d03e1	V761 aileron channel	2019-06-08 21:57:02 +02:00
MRC3742	0d917e0dc5	Update TOC for sub protocols using CC2500 to emulate XN297L @250kbps (#234 )	2019-06-08 21:26:25 +02:00
pascallanger	9408af8d08	Update Protocols_Details.md	2019-06-08 21:25:02 +02:00
Pascal Langer	862ab48bbc	Update V761_nrf24l01.ino	2019-06-06 10:26:54 +02:00
Pascal Langer	f498347c53	V761 second TX ID/freqs	2019-06-06 10:07:57 +02:00
Pascal Langer	3f77f59c8a	XN297L emu scramble option	2019-06-06 01:15:28 +02:00
pascallanger	e96186015d	XN297L CC2500 emulation	2019-06-05 23:31:17 +02:00
Pascal Langer	1fa6e4526b	Include full xn297(L) xor tables	2019-06-05 23:23:27 +02:00
Pascal Langer	3853d585a0	XN297L/CC2500 emulation on V911s	2019-06-05 22:53:24 +02:00
Pascal Langer	e8c6225ef0	New XN297L 250Kbps emu layer based on CC2500 This layer can be enabled/disabled with the option XN297L_CC2500_EMU in _config.h Protocols which are using it so far: GD00X, KF606 and MJXQ/E010&PHOENIX	2019-06-05 21:54:47 +02:00
Pascal Langer	17c67cc780	Update V761_nrf24l01.ino	2019-06-04 22:42:37 +02:00
Pascal Langer	dcc4236833	Merge branch 'master' of https://github.com/pascallanger/DIY-Multiprotocol-TX-Module	2019-06-04 22:02:43 +02:00
Pascal Langer	6a7c735924	Fix V761 input	2019-06-04 22:02:20 +02:00
pascallanger	3c40cd853e	Update Protocols_Details.md	2019-06-04 21:59:12 +02:00
pascallanger	5357660b68	KF606 and V761 protocols	2019-06-04 21:56:39 +02:00
Pascal Langer	a15a911f8e	New protocol KF606 Model: KF606 Protocol: 49 No sub protocol Channels: throttle, aileron and trim on ch5	2019-06-04 21:44:40 +02:00
Pascal Langer	ded0487ce6	XN297Dump improvements Selection of address length Timing accuracy	2019-06-04 21:41:50 +02:00
pascallanger	e7b079ece7	Update Protocols_Details.md	2019-06-01 16:05:23 +02:00
goebish	0cbe4de920	Fix E010/CC2500 Protocol on AVR (#229 ) * Use cc2500 fast frequency hopping * Calibrate cc2500 PLL if sub-protocol is E010/Phoenix only * Fix e010 crc for AVR	2019-05-31 09:17:27 +02:00
Ben Lye	5c3bf30fe7	Fix CX20 image	2019-05-29 08:48:21 +01:00
Ben Lye	56b8694fd5	Add CX20 Image	2019-05-29 08:47:25 +01:00
Pascal Langer	c9fecafada	WFly frequency tunning	2019-05-18 20:33:32 +02:00
Pascal Langer	f3ca7ad644	WFly freq tuning on channel 15 You need to enable the tuning in _config.h: #define USE_CYRF6936_CH15_TUNING	2019-05-18 17:36:39 +02:00
pascallanger	c3b48c78af	Update Protocols_Details.md	2019-05-18 13:48:02 +02:00
Pascal Langer	18dcc29a0d	XN297Dump: auto scramble detection	2019-05-17 20:34:02 +02:00
Pascal Langer	c3a5c263d3	XN297Dump fix CRC...	2019-05-17 19:56:52 +02:00
Pascal Langer	ccdf60d525	XN297DUMP: dynamic address search The dump process is now looking for addresses with different length (3..5) additonnaly to the packet length. Untested...	2019-05-17 17:00:08 +02:00
Pascal Langer	443e1cec75	New protocol V761 Protocol number: 48 Sub_protocol: none Channel 5: +100% expert, 0% mid=gyro on no rate limits, -100% beginer=gyro on and axis rate limited. ONLY 1 ID IS AVAILABLE SO BE CAREFUL WHILE FLYING.	2019-05-17 16:25:39 +02:00
goebish	aa540514b8	Use CC2500 if available instead of NRF24L01 for E010 and PHOENIX (#225 ) * Use CC2500 if available instead of NRF24L01 for E010 and PHOENIX sub protocols * Update documentation * Why do I always swap below & above ?	2019-05-16 13:17:39 +02:00
pascallanger	fda7e2e5b6	Update Protocols_Details.md	2019-05-14 18:23:24 +02:00
pascallanger	fb4d5cf437	Update Protocols_Details.md	2019-05-14 18:22:07 +02:00
pascallanger	9fc2898a56	Bayang protocol DHD D4 sub_protocol	2019-05-10 21:52:54 +02:00
Pascal Langer	2e24323adf	DHD D4 set to high rates	2019-05-10 21:39:15 +02:00
pascallanger	77abc1ed7c	BUGS3H Altitude Hold	2019-05-10 21:09:31 +02:00
Pascal Langer	259d550d04	AFHDS2A: stop bind process as requested	2019-05-10 19:39:14 +02:00
Pascal Langer	1a8f9c5a12	AFHDS2A extended telemetry forward	2019-05-10 18:17:09 +02:00
Pascal Langer	1916eb3095	AFHDS2A: add debug on full telemetry frames	2019-05-10 11:04:21 +02:00
Pascal Langer	fc3eec7ae1	BUSMINI: 3H altitude hold mode on CH11	2019-05-09 23:56:06 +02:00
Ben Lye	8d10c9b004	Update .travis.yml Fix file extension for compiled STM32 files	2019-05-09 21:36:49 +01:00
Pascal Langer	511f77f5e7	Bayang DHD D4 sub protocol	2019-05-09 18:23:19 +02:00
pascallanger	a58d7a4d79	Update Protocols_Details.md	2019-05-09 13:33:08 +02:00
Pascal Langer	6748f6ce78	Add XN297 Dump protocol Protocol number: 63 Sub protocols: 0=250Kb, 1=1Mb, 2=2Mb Option: -1=scan RF channels, 0-84=RF channel DEBUG_SERIAL must be enabled If a valid frame is received the frame will be sent on the serial port.	2019-05-08 22:01:24 +02:00