I saw on the german 'Kopter Forum' an interesting tread.
It seems possible to calibrate your compass without the iOS app and make short very simple flights, if i have translated it well. Hope so.
the URL: http://www.kopterforum.de/topic/30607-p3-kompass-kalibrieren-auch-ohne-app/
It seems possible to calibrate your compass without the iOS app and make short very simple flights, if i have translated it well. Hope so.
the URL: http://www.kopterforum.de/topic/30607-p3-kompass-kalibrieren-auch-ohne-app/