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Compass issues with AC 3.3

Posted by tom on January 10, 2016 at 8:26pm

Hi

I am using AC 3.2.` on pixhawk and it works good.

When I uploaded AC 3.3 I got compass issues, I was getting errors compass variance

Also when I tried to fly , I almost crashed it, my tarot got very unstable and banked to left and right

any thoughts about it?

regards

tom

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Replies

        • tom > Tony K January 13, 2016 at 11:53am

          Yes, I did the whole calibration few times, I tired to fly the quad, I disconnected the external compass and the GPS, and I noticed that the issue was with internal compass, that made me to think that the pixhaw was bad, but then I installed different firmware, and it worked out, I had no issiues.

          so thx fro comments, I fixed the issue,  I just wanted to know if anybody else noticed any compass issues with the new firmware.

          \

          • Vesselin Goranov > tom January 13, 2016 at 11:06pm

            It is probably not the firmware issue, it happens when install new version, the settings you used before are different and need to re-tune all.

            When changing, even slightly the position of the controller and other parts, sometimes the internal compass calibration offsets exceed the range (-400 400). If I have -500 (sometimes on Z axis) i manually put -400 and the internal compass working well.

            Anyway, using the external compass is better, good one gives max -100 +100 Z offset.

      • 3D Robotics
        Chris Anderson > tom January 12, 2016 at 9:28pm

        The logs will help us diagnose the issue 3.3 is having with *your* hardware. Needless to say many thousands of other people are using it without issue, so we need logs to see what's going on with your particular board. 

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