Asked — Edited
Resolved Resolved by Dave Schulpius!

Jittery Servo Movement

Hey there, I am having an issue with my robots movement here. I build a litte Lego robot consisting of 10 micro servos, they are supposed to have a 4.8Volts input.

http://www.servodatabase.com/servo/towerpro/sg90

But since I just bought a power supply with a fixed Voltage output, I am putting 6Volts in for this is as far as I can lower the Voltage on this particular power supply...they should be able to take up to 8.4Volts I read!

I made an animation cycle using the AutoPostition in ARC and the movements are pretty smooth...but after a little while the whole motion becomes choppy and erratic.

The power supply is a 7.5v 20 amp switching supply that I found with the help of @SteveG, so the servos should be getting enough Amps!

What could be the problem? I had some Wifi connectivity problems with the EZ-B lately...could it be a problem of data transmittance, or is this some issue with AutoPosition in general?

My board is not having any brown outs so I guess power is supplied at any times!

Where would I start searching for my mistake here?;)


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#33  

I plugged my robot back in and now I am able to run the animations smoothly, it was that I did not use the control settings for the AutoPosition the right way!

Another lesson to be learned on my way building K8, let's see what lies ahead!

Thanks for all the help, this is a great community!:D

#34  

By the way @RichardR the servos are running a lot better if I apply the correct voltage! eek

#35  

Glad everything is working out. You taught me something. I didn't know that you could take the delay down to zero and still have everything work. Thanks for being adventurous.