Replies to This Discussion

Permalink Reply by Michael Krader on July 1, 2012 at 11:53am

have you done them one at a time by hooking them to the reciever or the auto cal doing all 4 at one time.

 

might have a bad esc or more. might need to do the reflash.

DeveloperPermalink Reply by jasonshort on July 1, 2012 at 12:53pm

can you output the parameter list?

Jason

Permalink Reply by AndrewF on July 1, 2012 at 6:38pm

If you monitor the channel 3 input on the Mission Planner (with motors disconnected) does it respond linearly? Does that response change after the APM is restarted?

Permalink Reply by John Hudson on July 1, 2012 at 7:39pm

Thanks for all your suggestions!

I made a third attempt at calibrating manually, and this time I have finally had success, but there is still an issue - the ESC's are disarming spontaneously. The speed problem appears to have been rectified.

Andrew, the channel 3 input responded as it should, moving exactly in tandem with the control inputs.

I have uploaded a copy of my parameters, hopefully it might shed some light on things.

John

Attachments:

• quad_params.param, 3 KB

DeveloperPermalink Reply by Andreas M. Antonopoulos on July 1, 2012 at 7:57pm

After battling with calibration for a while, I started getting this weird cutoff on my ESCs. Turns out all the testing had drained the battery and the ESCs were detecting and responding to a low-voltage cutoff setting. 

Check you haven't drained the battery - just on the odd chance that is part of the problem.