I had it running fine for awhile, but after updating the Arduino, I can’t get Ground Control to communicate. It attempts to, but gets a time out error saying that either the wrong port is selected. or the firmware is not uploaded. The Arduino and the Ground Control are set to port 5 and I did successfully upload the firmware.
Were you able to resolve this?
I may have it worked out. I had the serial cable routed on top of the power cords for my laptop and the Arduino. I isolated it, and it hasn’t lost communication so far.