My ROV build was going well and completed first wet test earlier this week. Everything was working but when rebooted last night, it would not connect and QGroundcontrol shows error message “Vehicle is not responding…etc”. Says to reboot vehicle and restart QGroundcontrol, which I’ve tried several times with no luck.
Main LED on pixhawk does not light, so I re-flashed with several other arudpilot flight stacks and it seems to be fine, but when re-flashed with ardusub flight stack, back to “vehicle is not responding” and no main pixhawk LED. Have pulled pixhawk out of ROV build and connected direct to computer via USB but still no luck connecting so I’m concentrating on PIXHAWK.
At one point in the debug had “could not detect BRD_TYPE” error message, but cannot replicate.
Any advice on next troubleshooting steps would be much appreciated. Thanks in advance.