"I try connecting diode between ESC/BEC and APM to drop the voltage down from 5.15V to 4.85V and Xbee works!
But is this normally happening to other people?
Will there be any consequences to other system on the board?"
Weird problem again.XBee works fine both receiving and transmitting with power from USB-> APM -> XBEE and5V Battery-> Receiver -> APM-> XBEE But when using with ESC or BEC it only works transmitting data from APM to my PC.But not the other way…
"I have the exact same problem with you.
I try to interface the telemetry port to Serial->USB interface directly and it works fine at 115200.
Xbee Loopback test works fine at 115200.
So i suspect it has something to do with how telemetry port…"