Compass and orientation in MP problems

Posted by Keshan Dass on July 3, 2013 at 11:23am

Guys I need your help, APM 2.5 is new for me it´s the first time.  When I connect my usb cable to my bixler on the field, the red plane on the mission planner is opposite (almost everytime) to the true north.

What I did to solve the problem:

1- Check on “enable” magnetometer in MP/Configuration/hardware

2- Correct the declination and confirm in MP/configuration/adv parameter

That solution didn’t work completely, what I mean with that is that it corrects the orientation a little bit.

I don´t have an external magnetometer.

The question is:

What I have to do so that when I power up my APM 2.5 in the field and my bixler is pointing to N,E,W or S, in the mission planner that little red plane point to the same direction? 

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Replies

  • Moderator
    Graham Dyer July 3, 2013 at 12:30pm

    This may be something you've obviously double-checked but is your APM pointing the right way in the plane?

  • Developer
    Craig Elder July 3, 2013 at 12:12pm

    Have you calibrated the compass?

  • Picea July 3, 2013 at 12:09pm

    Where is your APM board located, is it near the motor? There are magnets in the motor which may affect the magnetometer.

    Then the canopy is locked in place by two magnets, another possibility for error.

This reply was deleted.