[Interest] Questions about QtSensors and QCompass

[maitai]

Hello,

I am trying to use QCompass sensor on Android and iOS.

It works well on Android (didn't test on iOS yet), but I have questions 
regarding calibration:

The link in qt documentation is dead ( 
http://wiki.forum.qt.com/index.php/CS001671_-_Calibrating_the_magnetometer_sensor 
). Does anyone knows where to find it or can explain how to proceed to 
calibrate the magnetometer? I tried to move the device in 8 figures and 
such but that does not seem to improve anything.

I have two real devices. On the first one the north reported by the 
sensor is more or less ok, but on the second one it is completely false 
and not stable at all. Strangely both devices are reporting 0.0 as 
calibrationLevel... is it normal?

Thanks for any insight
Philippe Lelong