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DIY-Multiprotocol-TX-Module/docs/Protocol_Details.md
pascallanger e4986a6a47 New documentation
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#Protocols details Here are detailed descriptions of every supported protocols (sorted by RF modules) as well as the available options for each protocol.

If you want to see a list of models that use these protocols see the Models page.

Default Mapping of Protocols

Here is the default mapping of protocols to the 16-position protocol selection switch on the module. You can customize these when you compile your own firmware as described in Compiling and Programming.

Note that the protocol must be selected before the unit is turned on.

Dial Protocol Sub_protocol RX Num Power Auto Bind Option RF Module
0 Select serial
1 FLYSKY Flysky 0 High No 0 A7105
2 HUBSAN - 0 High No 0 A7105
3 FRSKYD - 0 High No -41 CC2500
4 HISKY Hisky 0 High No 0 NRF24L01
5 V2X2 - 0 High No 0 NRF24L01
6 DSM DSM2 0 High No 6 CYRF6936
7 DEVO - 0 High No 0 CYRF6936
8 YD717 YD717 0 High No 0 NRF24L01
9 KN WLTOYS 0 High No 0 NRF24L01
10 SYMAX SYMAX 0 High No 0 NRF24L01
11 SLT - 0 High No 0 NRF24L01
12 CX10 BLUE 0 High No 0 NRF24L01
13 CG023 CG023 0 High No 0 NRF24L01
14 BAYANG - 0 High No 0 NRF24L01
15 SYMAX SYMAX5C 0 High No 0 NRF24L01

Useful notes and definitions

  • Extended limits supported - A command range of -125%..+125% will be transmitted. Otherwise the default is -100%..+100% only.
  • Autobind protocol - The transmitter will automatically initiate a bind sequence on power up. This is for models where the receiver expects to rebind every time it is powered up. In these protocols you do not need to press the bind button at power up to bind, it will be done automatically.
  • Channel Order - The channel order assumed in all the documentation is AETR and it is highly recommended that you keep it this way. You can change this in the compilation settings. However, please indicate your channel order in all questions and posts on the forum pages.

#A7105 RF Module

##FLYSKY Extended limits supported

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
A E T R CH5 CH6 CH7 CH8

Note that the RX ouput will be AETR.

###Sub_protocol V9X9

CH5 CH6 CH7 CH8
FLIP LIGHT PICTURE VIDEO

###Sub_protocol V6X6

CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12
FLIP LIGHT PICTURE VIDEO HEADLESS RTH XCAL YCAL

###Sub_protocol V912

CH5 CH6
BTMBTN TOPBTN

##HUBSAN Models: Hubsan H102D, H107/L/C/D and Hubsan H107P/C+/D+

Autobind protocol

Telemetry enabled for battery voltage and TX RSSI

Option=vTX frequency (H107D) 5645 - 5900 MHz

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
A E T R FLIP LIGHT PICTURE VIDEO HEADLESS

#CC2500 RF Module

##FRSKYV = FrSky 1 way Models: FrSky receivers V8R4, V8R7 and V8FR.

Extended limits supported

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

CH1 CH2 CH3 CH4
CH1 CH2 CH3 CH4

##FRSKYD Models: FrSky receivers D4R and D8R. DIY RX-F801 and RX-F802 receivers.

Extended limits supported

Telemetry enabled for A0, A1, RSSI, TSSI and Hub

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

##FRSKYX Models: FrSky receivers X4R, X6R and X8R.

Extended limits supported

Telemetry enabled for A1 (RxBatt), A2, RSSI, TSSI and Hub

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

###Sub_protocol CH_16

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 CH_8

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8

##SFHSS Models: Futaba RXs and XK models.

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
A E T R CH5 CH6 CH7 CH8

#CYRF6936 RF Module

##DEVO Extended limits supported

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
A E T R CH5 CH6 CH7 CH8

Note that the RX ouput will be EATR.

Bind procedure using serial:

  • With the TX off, put the binding plug in and power on the RX (RX LED slow blink), then power it down and remove the binding plug. Receiver should now be in autobind mode.
  • Turn on the TX, set protocol = Devo with option=0, turn off the TX (TX is now in autobind mode).
  • Turn on RX (RX LED fast blink).
  • Turn on TX (RX LED solid, TX LED fast blink).
  • Wait for bind on the TX to complete (TX LED solid).
  • Make sure to set the RX_Num value for model match.
  • Change option to 1 to use the global ID.
  • Do not touch option/RX_Num anymore.

Bind procedure using PPM:

  • With the TX off, put the binding plug in and power on the RX (RX LED slow blink), then power it down and remove the binding plug. Receiver should now be in autobind mode.
  • Turn on RX (RX LED fast blink).
  • Turn the dial to the model number running protocol DEVO on the module.
  • Press the bind button and turn on the TX. TX is now in autobind mode.
  • Release bind button after 1 second: RX LED solid, TX LED fast blink.
  • Wait for bind on the TX to complete (TX LED solid).
  • Press the bind button for 1 second. TX/RX is now in fixed ID mode.
  • 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 dial 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.

##DSM ###Sub_protocol DSM2 Extended limits supported

Telemetry enabled for TSSI and plugins

option=number of channels and frame rate:

  • 0 : 4 channels @22ms

  • 1 : 5 channels @22ms

  • 2 : 6 channels @22ms

  • 3 : 7 channels @22ms

  • 4 : 4 channels @11ms

  • 5 : 5 channels @11ms

  • 6 : 6 channels @11ms

  • 7 : 7 channels @11ms

  • 8 : 8 channels @22ms

  • 9 : 9 channels @22ms

  • 10 : 10 channels @22ms

  • 11 : 11 channels @22ms

  • 12 : 12 channels @22ms

Value 6 is usually giving the best results with most of the RX.

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 TAER.

###Sub_protocol DSMX Same as above

##J6Pro

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

#NRF24L01 RF Module

##ASSAN Extended limits supported

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10

The transmitter must be close to the receiver while binding.

##BAYANG Models: EAchine H8(C) mini, BayangToys X6/X7/X9, JJRC JJ850, Floureon H101 ...

Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10
A E T R FLIP RTH PICTURE VIDEO HEADLESS INVERTED

##CG023 Models: EAchine CG023/CG031/3D X4

Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
A E T R FLIP LIGHT PICTURE VIDEO HEADLESS

###Sub_protocol YD829 Models: Attop YD-822/YD-829/YD-829C ...

CH5 CH6 CH7 CH8 CH9
FLIP PICTURE VIDEO HEADLESS

###Sub_protocol H8_3D Models: EAchine H8 mini 3D, JJRC H20/H22

CH5 CH6 CH7 CH8 CH9
FLIP LIGTH OPT1 OPT2 CAL

JJRC H20: OPT1=Headless, OPT2=RTH

JJRC H22: OPT1=RTH, OPT2=180/360° flip mode

H8 3D: OPT1=RTH then press a direction to enter headless mode (like stock TX), OPT2=switch 180/360° flip mode

CAL: calibrate accelerometers

##CX10 Extended limits supported

Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6
A E T R FLIP RATE

Rate: -100%=rate 1, 0%=rate 2, +100%=rate 3

###Sub_protocol GREEN Models: Cheerson CX-10 green pcb

Same channels assignement as above.

###Sub_protocol BLUE Models: Cheerson CX-10 blue pcb & some newer red pcb, CX-10A, CX-10C, CX11, CX12, Floureon FX10, JJRC DHD D1

CH5 CH6 CH7 CH8
FLIP RATE PICTURE VIDEO

Rate: -100%=rate 1, 0%=rate 2, +100%=rate 3 or headless for CX-10A

###Sub_protocol DM007

CH5 CH6 CH7 CH8 CH9
FLIP MODE PICTURE VIDEO HEADLESS

###Sub_protocol Q282 and Q242

CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12
FLIP LED PICTURE VIDEO HEADLESS RTH XCAL YCAL

Model: JXD 509 is using Q282 with CH12=Start/Stop motors

###Sub_protocol JC3015_1

CH5 CH6 CH7 CH8
FLIP MODE PICTURE VIDEO

###Sub_protocol JC3015_2

CH5 CH6 CH7 CH8
FLIP MODE LED DFLIP

###Sub_protocol MK33041

CH5 CH6 CH7 CH8 CH9 CH10
FLIP MODE PICTURE VIDEO HEADLESS RTH

##ESKY

CH1 CH2 CH3 CH4 CH5 CH6
A E T R GYRO PITCH

##FY326

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
A E T R FLIP RTH HEADLESS EXPERT CALIBRATE

##FQ777 Model: FQ777-124

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
A E T R FLIP RTH HEADLESS EXPERT

##HISKY

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
A E T R GEAR PITCH GYRO CH8

GYRO: -100%=6G, +100%=3G

###HK310 Models: RX HK-3000, HK3100 and XY3000 (TX are HK-300, HK-310 and TL-3C)

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
T R AUX T_FSAFE R_FSAFE AUX_FSAFE

##KN

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11
A E T R DR THOLD IDLEUP GYRO Ttrim Atrim Etrim

Dual Rate (DR): +100%=full range, Throttle Hold (THOLD): +100%=hold, Idle Up (IDLEUP): +100%=3D, GYRO: -100%=6G, +100%=3G

###Sub_protocol WLTOYS ###Sub_protocol FEILUN Same channels assignement as above.

##MJXQ Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12 CH13
A E T R FLIP LED PICTURE VIDEO HEADLESS RTH AUTOFLIP PAN TILT

###Sub_protocol WLH08 ###Sub_protocol X600 Only 3 TX IDs available, change RX_Num value 0..2 to cycle through them ###Sub_protocol X800 Only 3 TX IDs available, change RX_Num value 0..2 to cycle through them ###Sub_protocol H26D ###Sub_protocol E010 Only 1 TX ID available

##MT99XX Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
A E T R FLIP LED PICTURE VIDEO HEADLESS

###Sub_protocol MT Models: MT99xx ###Sub_protocol H7 Models: Eachine H7, Cheerson CX023 ###Sub_protocol YZ Model: Yi Zhan i6S Only one model can be flown at the same time since the ID is hardcoded. ###Sub_protocol LS Models: LS114, 124, 215

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
A E T R FLIP INVERT PICTURE VIDEO HEADLESS

##Shenqi Autobind protocol

Model: Shenqiwei 1/20 Mini Motorcycle

CH1 CH2 CH3 CH4
T R

Throttle +100%=full forward,0%=stop,-100%=full backward.

##SLT Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6
A E T R GEAR PITCH

##Symax Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
A E T R FLIP RATES PICTURE VIDEO HEADLESS

###Sub_protocol SYMAX Models: Syma X5C-1/X11/X11C/X12

###Sub_protocol SYMAX5C Model: Syma X5C (original) and X2

##V2X2 Models: WLToys V202/252/272, JXD 385/388, JJRC H6C, Yizhan Tarantula X6 ...

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11
A E T R FLIP LIGHT PICTURE VIDEO HEADLESS MAG_CAL_X MAG_CAL_Y

PICTURE: also automatic Missile Launcher and Hoist in one direction

VIDEO: also Sprayer, Bubbler, Missile Launcher(1), and Hoist in the other dir

##YD717 Autobind protocol

CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9
A E T R FLIP LIGHT PICTURE VIDEO HEADLESS

###Sub_protocol YD717 ###Sub_protocol SKYWLKR ###Sub_protocol SYMAX4 ###Sub_protocol XINXUN ###Sub_protocol NIHUI Same channels assignement as above.