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Hitec full telemetry description
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Pascal Langer
parent
5345ece322
commit
9ab5353122
@ -312,23 +312,47 @@ uint16_t ReadHITEC()
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}
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}
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else
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if(len==15) // Telemetry packets have a length of 15
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{ // telem packet: 0C, 00, 6A, 03, 00, 00, 00, 00, 00, 00, 00, 8E, 00, 5E, 94
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//Not fully handled since the RX I have only send 1 frame where from what I've been reading on Hitec telemetry should have at least 4 frames...
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if( len==15 && pkt[4]==0 && pkt[12]==0 )
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{ // Valid telemetry packets
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// no station:
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// 0C,1C,A1,2B,00,00,00,00,00,00,00,8D,00,64,8E -> 00 8D=>RX battery voltage 0x008D/28=5.03V
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// with HTS-SS:
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// 0C,1C,A1,2B,00,11,AF,00,2D,00,8D,11,00,4D,96 -> 00 8D=>RX battery voltage 0x008D/28=5.03V
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// 0C,1C,A1,2B,00,12,00,00,00,00,00,12,00,52,93
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// 0C,1C,A1,2B,00,13,00,00,00,00,46,13,00,52,8B -> 46=>temperature2 0x46-0x28=30°C
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// 0C,1C,A1,2B,00,14,00,00,00,00,41,14,00,2C,93 -> 41=>temperature1 0x41-0x28=25°C
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// 0C,1C,A1,2B,00,15,00,2A,00,0E,00,15,00,44,96 -> 2A 00=>rpm1=420, 0E 00=>rpm2=140
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// 0C,1C,A1,2B,00,16,00,00,00,00,00,16,00,2C,8E
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// 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
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// 0C,1C,A1,2B,00,18,00,00,00,00,00,18,00,50,92
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debug(",telem");
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#if defined(HITEC_HUB_TELEMETRY)
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TX_RSSI = pkt[len-2];
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switch(pkt[5]) // telemetry frame number
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{
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case 0:
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v_lipo1 = (pkt[12])<<5 | (pkt[11])>>3; // calculation in decimal is volt=(pkt[12]<<8+pkt[11])/28
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break;
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case 11:
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v_lipo1 = (pkt[11])<<5 | (pkt[10])>>3; // calculation in decimal is volt=(pkt[11]<<8+pkt[10])/28
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break;
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case 18:
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v_lipo2 = (pkt[6])<<5 | (pkt[7])>>3; // calculation in decimal is volt=(pkt[6]<<8+pkt[7])/10
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break;
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}
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TX_RSSI = pkt[13];
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if(TX_RSSI >=128)
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TX_RSSI -= 128;
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else
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TX_RSSI += 128;
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TX_LQI = pkt[len-1]&0x7F;
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//TODO: where is the frame number...
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v_lipo1 = (pkt[len-3])<<5 | (pkt[len-4])>>3; // calculation in decimal is volt=(pkt[len-3]<<8+pkt[len-4])/28
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TX_LQI = pkt[14]&0x7F;
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telemetry_link=1; // telemetry hub available
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#elif defined(HITEC_FW_TELEMETRY)
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for(uint8_t i=4;i < len; i++)
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pkt[i-4]=pkt[i]; // remove header, 11 bytes of data
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// 8 bytes telemetry packets => see at the end of this file how to fully decode it
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uint8_t offset=pkt[5]==0?1:0;
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for(uint8_t i=5;i < 11; i++)
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pkt[i-5]=pkt[i+offset]; // frame number followed by 5 bytes of data
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pkt[6]=pkt[13]; // TX RSSI
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pkt[7]=pkt[14]&0x7F; // LQI
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telemetry_link=2; // telemetry forward available
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#endif
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}
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@ -364,4 +388,61 @@ uint16_t initHITEC()
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return 10000;
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}
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/* Full telemetry
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1st byte is the frame number 0x00, 0x11, 0x12, ..., 0x18 followed by 5 bytes of data.
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The frames can be present or not, they do not have to follow each others.
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- frame 0x00
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data byte 0 -> 0x00 unknown
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data byte 1 -> 0x00 unknown
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data byte 2 -> 0x00 unknown
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data byte 3 -> RX Batt Volt_H
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data byte 4 -> RX Batt Volt_L => RX Batt=(Volt_H*256+Volt_L)/28
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- frame 0x11
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data byte 0 -> 0xAF start of frame
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data byte 1 -> 0x00 unknown
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data byte 2 -> 0x2D frame type but constant here
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data byte 3 -> Volt1_H
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data byte 4 -> Volt1_L RX Batt=(Volt1_H*256+Volt1_L)/28 V
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- frame 0x12
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data byte 0 -> Lat_sec_H GPS : latitude second
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data byte 1 -> Lat_sec_L signed int : 1/100 of second
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data byte 2 -> Lat_deg_min_H GPS : latitude degree.minute
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data byte 3 -> Lat_deg_min_L signed int : +=North, - = south
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data byte 4 -> Time_second GPS Time
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- frame 0x13
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data byte 0 -> GPS Longitude second
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data byte 1 -> signed int : 1/100 of second
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data byte 2 -> GPS Longitude degree.minute
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data byte 3 -> signed int : +=Est, - = west
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data byte 4 -> Temp2 Temperature2=Temp2-40°C
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- frame 0x14
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data byte 0 -> Speed_H
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data byte 1 -> Speed_L Speed=Speed_H*256+Speed_L km/h
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data byte 2 -> Alti_sea_H
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data byte 3 -> Alti_sea_L Altitude sea=Alti_sea_H*256+Alti_sea_L m
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data byte 4 -> Temp1 Temperature1=Temp1-40°C
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- frame 0x15
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data byte 0 -> FUEL
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data byte 1 -> RPM1_L
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data byte 2 -> RPM1_H RPM1=RPM1_H*256+RPM1_L
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data byte 3 -> RPM2_L
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data byte 4 -> RPM2_H RPM2=RPM2_H*256+RPM2_L
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- frame 0x16
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data byte 0 -> Date_year GPS Date
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data byte 1 -> Date_month
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data byte 2 -> Date_day
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data byte 3 -> Time_hour GPS Time
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data byte 4 -> Time_min
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- frame 0x17
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data byte 0 -> 0x00 COURSEH
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data byte 1 -> 0x00 COURSEL GPS Course = COURSEH*256+COURSEL
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data byte 2 -> 0x00 GPS count
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data byte 3 -> Temp3 Temperature3=Temp2-40°C
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data byte 4 -> Temp4 Temperature4=Temp3-40°C
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- frame 0x18
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data byte 1 -> Volt2_H
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data byte 2 -> Volt2_L Volt2=(Volt2_H*256+Volt2_L)/10 V
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data byte 3 -> AMP1_L
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data byte 4 -> AMP1_H Amp=(AMP1_H*256+AMP1_L -180)/14 in signed A
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*/
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#endif
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@ -19,7 +19,7 @@
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#define VERSION_MAJOR 1
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#define VERSION_MINOR 2
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#define VERSION_REVISION 0
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#define VERSION_PATCH_LEVEL 27
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#define VERSION_PATCH_LEVEL 28
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//******************
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// Protocols
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