I have jrdrones ArduCopter Quad with ArduMega1280, 20A ESC, 880kv motors, sonar. Using the 2.1.0 Alpha software.
I have just got it flying for the last month or so, and have flown it a few times with increasing success, total time about 30 minutes.
A few days ago, was flying in STABALIZE mode and was able to move around pretty good for 5 minutes or so.
I then switched to ALTITUDE_HOLD, and it worked well (+/- 1 meter) for a minute. Then the left engine (in plus configuration), dipped a few times, and as I was trying to land, quit completely and flipped it over. I am trying to diagnose it, and would like some direction. The battery was still full when I checked it. I don't have logs because it is a 1280.
Does this sound like :
- Engine malfunction
- ESC malfunction
- Something else?
I haven't tried the engine yet on the bench, but wanted to see what the most likely cause was