Discussions

Compass Problem

Posted by Ken Wycherley on October 6, 2011 at 10:24am

I have a standard, pre-soldered Arducopter with sonar mounted as per instructions.

Magnetic declination set correctly.

Using Mission Planner in flight mode, both indoors with GPS lock and outdoors again with GPS lock, the compass shows North and East correctly but South and West off by 45 degrees.

Does anyone have any ideas as to why this may be the case

Regards

Ken

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –
Follow

Replies

  • Moderator
    Michael Pursifull October 6, 2011 at 11:10am

    That does seem odd. I'm assuming your magnetometer has the components down, pins forward?

    Is it possible that you have magnetic interference? Either from outside the aircraft, or more likely, from within, say, the ESCs, maybe?

     

    You might try running CLI->test->compass while powering from USB, and rotating the craft; write down some findings, then do the same, but add lipo power for the second try? The intent here is to see if there is a difference when the ESCs are powered up... it is just a shot in the dark.

This reply was deleted.

Activity