No heartbeat with serial connection

1

Hi All,
I’m newbie to px4 and I would be really appreciate for help in next problem.
If I connect px4 via serial port QGroundControl give the error message - “There is a MAVLink Version or Baud Rate Mismatch. Please check if the baud rates of QGroundControl and your autopilot are the same.”
If I try redirect data with mavproxy:
mavproxy.py --master /dev/ttyUSB0,57600 --out udp:127.0.0.1:14551,
I see that there are no hertbeat message from px4. If I use usb connection all works
Please give me some tips of how to connect px4 via serial port.

2

Did you turn on Mavlink 2.0? If so QGC doesn’t support it yet.