I intend to use my Pixhawk with the Raspberry Pi 3 as the companion computer over UART. I have successfully established connection with the Pixhawk and am able to read status messages which are triggered by RC. However, I'm not able to arm/disarm or pass any RC control commands over UART. This works fine when I run mavproxy over USB (on the RPi3 and my Ubuntu machine). I've set SYS_COMPANION to enable a 921K companion link.
How do I proceed to correct this?
Thanks and Regards,