Couple issues with APM 2, Compass and initializing ESCs

Hi,

I have an APM2 and am just getting around to setting it up.  I am having 2 problems. 

 

The onboard compass keeps pointing to approx. 50 degrees. I can turn the APM and the compass moves but it quickly returns to 50 degrees.  I have isolated the board so I know it isn't being affected by any external forces. 

 

When I plug in power to the quadcopter, ussually only one esc is initialized.  The others just continue to beep and don't become active when arming the quadcopter.  The funny thing is that when I do a calibration of the ESCs through the APM, they will all initialize and the motors will spin and appear to work fine.  Not sure why they work on the calibration and not other times.  

 

Anybody have any ideas on either of these problems?

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Replies

  • Check compass settings in ground station.

    Is it always pointing to 50 degrees, no metter how you turn your board? Try to roll/pitch board for 90 degrees and check if in this posittion when rotating board, it's stops pointing one value and is getting full 360 degrees.

  • additional information.

    Messed with it last night and found some odd items. First, I get an error 99 when trying to do the calibration and once I got an error 0.3.  Do not know what those mean.  If I turn the compass off in mission planner, it showed that it was moving when I turned the APM, but wasn't pointing to north properly.  So I tried moving a strong magnet around the APM and it didn't move at all. 

     

    Any ideas?  Compass just broken?  What options do I have?

     

    Thank you for any help

    • Hi Jay,

      I have the same problems with the ESC and with the compass calibration but unfortunately I have no ideas for resolving them.

      Have you solved your trouble?

       

      Could anybody help us?

      Thanks in advance.

      • I never solved my problem.  Waiting for the Pixhawk 2.  If it ever comes out.

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