Arducopter Linux Navio2 Yunnec

Hello I build a hexacopter with Raspberry pi 4B and Navio2, what program do you advise me so that the telemetry function on my controller Yuneec St16 or St24, I am not find the program and I built my file BIN arducopter V4.5.0-dev, I communicate the 12 RC channels by PPM with board ESP8266MOD and program; YuneecRX2ppmFinal, but telemetry does not work, thank you in advance for your help, I have been a fan of your project for more than 12 years