apm2.5 magnetometer

Is the onboard magnetometer on the apm2.5 of any use? It seems to drift as much a 30 degrees. I think I read somewhere on the forums that an optional magnetometer is required for position hold etc. Can the onboard magnetometer be initialized/zeroed?

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  • Harley, 

    I take it you are testing this in the house. There are many factors indoors that can mess with the mag. Mine slowly rotates on my desk too, but that's because the electricity meter and main electric feed to the house run right beneath me and I'm surrounded by mild steel radiators etc etc.

    If i move to the lounge - or go outside my mag settles right down. Try that and let us know.

     

  • Make sure that your magnetometer is not receiving external magnetic fields from your wiring.  Remove the props, arm the ESC's, then throttle up.  Your magnetic heading should not change.

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