Compass give me crazy data, is calibration needed or it's the sensor broken?

Question

I\'m working with android sensor data. My application use

SensorManager.getRotationMatrixFromVector(
            mRotationMatrix , event.values);
         


        

Answer 1

If your application work on another tablet and other compass application do not work on your device, this is probably due to a bad calibration.

As said in the post above, to make the calibration, wave your device in a figure of 8. I just want to add that you should do it for EACH axis. This should fix your problem.