Hi Guys
The issue I have is calibrating the Compass, the result always is Calibration Failed. See the picture here:
Hi,
Is your Pixhawk correctly configured to Roll90 (or whatever the orientation)? It happened to me once when I forgot to set it up.
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Hi @suitangxiaoyi,
As @VMartini mentioned, one of the things that can cause compass calibration to fail is to incorrectly specify the autopilot orientation for the calibration. Attempting to calibrate near a large magnetic object (e.g. on a metal table, near high voltage wiring, or in a steel building) can also cause calibration issues.
If that is not the cause then your compass may be faulty, in which case I would recommend contacting support@bluerobotics.com to describe the problem, what you’ve tried, and your order number (/rough order date), after which the issue can be resolved as appropriate 
Yes. But it still work bad
I have new BR2 w/ Navigator and Blue OS. I have just done initial sensor calibrations and the following shows best I can get. I did inside my building then outside with clear path to North and results are same for both compasses.
Never get acceptable calibration on 2nd compass.
Hi @dtrail,
I’m told this can happen if the calibration is done without very significant rotations. If you don’t think that’s likely it would be useful if you can provide
- A dataflash (
.bin) log (via the BlueOS Log Viewer), wherein you arm the vehicle, and rotate it around a bit about all three axes - Your (rough) location in the world
so we can check if the heading estimate is tracking well against the compass and gyroscope readings, and try to run an external calibration.