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Noisy barometer AC3.2 APM2.6

Posted by Andrew Harvey on April 5, 2015 at 2:32am

Hi there,

Although my quadcopter flies great in Stabilise mode, it drifts up and down when in AltHold or Loiter mode. I have made sure all my vibrations are within acceptable limits.

The following plot is from the attached log. I have graphed GPS.RelAlt and CTUN.BarAlt. Should BarAlt be fluctuating so widely?

Thanks!

15-04-05_00-39-45_1.bin

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Replies

Andrew Harvey April 6, 2015 at 4:00am

This graph may be more useful - it shows how Altitude tracks Desired Altitude (not very well!)

Click on the image to get a much better, more detailed version.

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