paiprashanth / ardupilot-mega

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PWM servo output on APM2 is noisy #598

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago
Feature that you'd like us to add or change you'd like us to make:

I have massive problems with my servo output on my APM2.
Servo is connected on Out1, Servo on Out2 is much better but also not 100% 
acurate. When I change Servo 1 and 2, then it`s on Servo 2, so it really seems 
to be an inacurate PWM out.

I used fast digital Servos, DS3288 in this case. But the problem also exists on 
lower speed digital Servos!

Here a video how it looks like:
http://www.youtube.com/watch?v=VBI8LrA8w0c&feature=youtu.be

Also I found that at least in the manual mode, Servo out 1 and 2 will not move 
really at the same time, there is a delay between them...

Would be really great if we can get a solution on this, otherwise I can not use 
APM2 on that plane, and it was built for it...

Thank you.

Original issue reported on code.google.com by ris...@gmail.com on 11 Apr 2012 at 11:52

GoogleCodeExporter commented 8 years ago
Firmware was 2.33... Newest available at the moment.
PPM or normal PWM input makes no difference...

Original comment by ris...@gmail.com on 11 Apr 2012 at 11:53

GoogleCodeExporter commented 8 years ago
http://www.youtube.com/watch?v=zRBSoNuYCuA&feature=youtu.be

Original comment by ris...@gmail.com on 12 Apr 2012 at 12:00

GoogleCodeExporter commented 8 years ago
Was it okay with 2.32 and 2.28 ?

Original comment by narpat...@gmail.com on 12 Apr 2012 at 1:00

GoogleCodeExporter commented 8 years ago

Original comment by amilcar....@gmail.com on 12 Apr 2012 at 10:44

GoogleCodeExporter commented 8 years ago
OK, sorry, after three days now i found the problem, it was not related to the 
APM2 as i tought it was, sorry for that false alarm...
Now it works just perfect, could manage to do a flight this evening, amazing...

Original comment by ris...@gmail.com on 13 Apr 2012 at 12:30

GoogleCodeExporter commented 8 years ago

Original comment by Meee...@gmail.com on 15 Apr 2012 at 8:40