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APM 2.6 with dual compass??

Posted by Wolfgang Feichtner on November 4, 2013 at 1:10pm

Gents,

just received a brand new APM 2.6 from Lipoly.de with a sticker which says 2.6 and the 3 DR GPS/compass.

This APM 2.6 has a working compass on the board?? How comes?

When I connect the external GPS/compass, it makes somewhat a mix out of both heading sensors.

Is there a possibility to stop the internal compass without voiding the warranty and is not a big hammer?

If there is an easy solution please let me know, otherwise I have to send it back tommorow.

many thxs

b.r.

Wolfgang

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Replies

  • Wolfgang Feichtner November 6, 2013 at 6:58am

    Gents,

    found this in 3DR forum, what supports John´s explanation:

    (Did not know that this forum exists!)

    http://ardupilot.com/forum/viewtopic.php?f=19&t=4748

    b.r.

    Wolfgang

  • John Hutchison November 5, 2013 at 8:20pm

    There may just be a misunderstanding...the accelerometer can function as a "compass" by detecting yaw movement..

    I have a APM 2.6 but no gps or external compass, and also get compass movement...

    If i power on the apm and connect via telem, whatever direction the apm is facing will be set as 359 or 0 degrees, and the compass heading changes when the apm is turned.

    If i set down the apm at any other heading and press reset, when it reconnects to mission planner the new heading is now 359 or 0 degrees...

    But the accelerometer is so awesome that i believe if the apm was powered on while lined up with a real due north heading, the heading would hold true

  • Martin Poller November 4, 2013 at 2:18pm

    Hi Wolfgang,

    APM 2.6 does not have an on board compass, you need to use the combined remote compass and GPS module.

    No need to send it back!

    Regards

    Martin.

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