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I don't think it's the auto calibration.
The screenshot is very strange behavior, I have not seen. Does it do this with both sensors?
I have found a problem that gives bad data from the imu when the ram is full and the kernel is swapping. Not sure how I will deal with this, but it is not normally a problem for autopilot.
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2018-07-29, 12:02 PM
(This post was last modified: 2018-07-29, 03:24 PM by jim321.)
just curious is there something close to the imu, fan, disk drive, speaker or some other EM source that could interfere .
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it would be easy to find out by running the scope on the compass output, then moving the fan wires or other possible sources around.
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I have not seen that, but I have seen sensors with broken axes, and extreme biases.
Could you try a different sensor?
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5-10% of these are completely defective in one way or another and cannot be used
another 20-40% of these have compass sensor with very large bias, or accelerometer with too large bias that saturates the 2g range so degrades performance
I discard these sensors and almost half are rejected.