I have a 450 size elektro heli with Flybar stabilisation.
There’s an APM2.8 installed with Copter 3.2.1 and an external GPS/Compass.
Everything is working so far, but I was testing in loiter mode and it was “Toilet Boiling” heavily.
After some search on the internet I fount that I forgot to do the Motor/Compass calibration.
But when I start the Motor/Compass calibration, I’m not able to run the motor.
To test, I disabled all the pre-arm checks but still nothing.
(In stabilise/loiter/althold mode I can arm and fly the heli)
Does anyone have some tips where to look at to get the motor running in calibration mode?
Yes, I have connected the battery. I tried to run the heli, in stabilization mode, that works. Then I tried to perform the compass / motor calibration that didn’t work. I use a telemetry module to connect to the heli, it is safer than a USB cable when the heli is active.
I have never found Motor/Compass calibration useful and in one case it caused yaw drift. Perhaps it’s another problem. One thing you could surely do is replace the APM FC with one that supports the current Trade Heli stable version. Among other things support for APM is waning because few are using them any longer so finding someone with knowledge is increasingly more difficult.
i agree with Dave too, i never used Motor/Compass calibration and all of my copters are flying good in loiter.
unfortunately there is no useful data in your log maybe you should check your log bitmask for your logging problem
I found that the Heli was not perfectly balanced in terms of weight distribution, after solving that it’s flying better. But I still didn’t find out why the motor compass calibration isn’t starting. Any tips to check to get it working?