I just finished upgrading my quad to the ADM 2.5 and all was working great yesterday as I assembled and tested the system.  I tuned it up today and went to fly it.  Stabilize worked great but when I switched to loiter, it held position within a 10' x 10' box but begins to decend, all the way to the ground and even when makig contact with the ground it continues to throttle back.  I took a look at the screen and it shows a huge negative altitude - 704554496.00 ft. and doesn't change when walking up and down a hill.  I found others have had a similar issue and I routed out a small portion of the pink foam covering the baro sensor with no luck.  Others have reloaded the firmware and it corrects problem but I tried with no luck.  Anyone with an idea as to what is going on?

Thanks,

-Brian3691000587?profile=original

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Replies

  • Outstanding!

    I am glad to see the Wiki providing some postive feedback and a problem resolved.

    Folk are too easy to bash it when it costs others time and effort.

    Fly on!

    -=Doug

  • Found the answer.  Blame it on the  midnight testing.

     

    http://code.google.com/p/arducopter/wiki/AC2_Troubleshooting#My_cop...

  • Have you looked at the *tlog?

    That will give complete picture of flight operations and function parameters.

    You could post it here and submit it for peer review and comment.

    -=Doug

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