"Hi Fran,Thx for the info.Is the same problem in the CRUIS V1.1.In MPNG 3.1.5 the telemetry is present in TX3/RX3 but in this version no telemetry signal  present in these ports.The TX0/RX0 is working but this port is not a real telemetry port can be…"

"HiSome info about Serial2 broken, see here, the problem seem comes from APM 3.2.1 code.

https://github.com/ArduPilot/ardupilot/issues/1854

@Hiroshi i post the problem in the github when i have good info about it, thank for your info and help.I…"

"HiToday I tried my Tricopter with this firmware, flies and flies very well.Now work in fine tunning PIDsThe correct way to put the channels at the end to be correlative is this:uint8_t static pinRcChannel [8] = {0, 1, 2, 3, 4, 5, 6, 7}; // ROLL,…"

"HelloI think I've solved the problem.This line appears in RCInput_APM2.cpp:uint8_t static pinRcChannel [8] = {0, 1, 2, 3, 5, 4, 4, 6}; // ROLL, PITCH, THROTTLE, YAW, MODE, AUX2, CAMPITCH, CAMROLLThe number 4 I is doubled, I modified as…"

"Incredible job much appreciated here, thank you very much! .I need some help.A crawl or mixture of between Channels 6 and 7 occurs.The channels 1 through 5 and 8 appears work well but channels 6 and 7 in radio calibration working together and there…"