I have built and configured my first drone, it should be ready to fly. However, I can only arm the drone if it’s connected to QGC using micro-usb cable, if I try to arm without connecting to QGC the Pixhawk blinks in red which indicates an error.
What should I do to fly the drone without connecting to QGC first?
I finally fixed the problem, which was caused by the COM_POWER_COUNT parameter, the autopilot was checking that I have two power supplies at least (usb and battery in my case) so when I unplug the usb it fails pre-flight checks. I just disabled this check and everything is fine now.