Das heisst, dass ich die Störung der Motoren doch durch Ausrichten vermindern kann! Werd ich mal ausprobieren. Danke!

Edit: Übrigens stimmt es NICHT dass der Kompass die Kalibrierungsdaten verliert.
"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."

Quelle: http://www.robot-electronics.co.uk/htm/cmps_cal.shtml

Mfg

pongi