Zitat Zitat von alecs
Ist eine Kalibrierung zwingend notwendig (bei jedem Neustart oder allgemein ) ????
Aus einer Doku im Internet :

Calibration only needs to be done once - the calibration data is stored in EEPROM on the PIC16F872 chip. You do not need to re-calibrate every time the module is powered up. The module has already been calibrated in our workshop for our inclination, which is 67 degrees. If your location is close to this, you may like to try the compass without re-calibrating at all.

Gruss
Frank