I am having few navio2 based DIY drones with APM:Copter V3.4.6 (5221448a). The real problem I am facing is, after it did 1-2 successful takeoff and land, in the next attempt, it gets crashed after few rotation in the air immediately after take off. I am not able to find what reason it getting crashed. After initial 3-4 crash, I was thinking that it is the calibration issue and did calibration (accel and compass) of drone every time, before going to takeoff. That also didn’t help. Today I had one more crash.
Earlier I was calibrating drone with radio receiver and after successful takeoff/land, I removed the received and tried to takeoff with mission planner software. Just immediately after takeoff, it started rotating in the air and got crashed. So today after I removed the radio receiver, I did only onboard compass calibration but that also didn’t help.
The navio2 device has 2 compass, I enabled both assuming that it will add more accuracy and tried. But Didn’t help.
I am attaching the log here. I always see “Large change in mag_field” message in the log, I am not sure what reason it is showing.
Successfull takeoff and Land
Anybody can help me in finding the reason for the crash, that will be really helpful.