servo jitters

[Alan Anderson]

Originally Posted by jon-s

When the servo jitters (I don't recall any sound), it moves back and forth, up to about 50 degrees. It does this regardless of what position it starts in. It has done this on both of our robots.

That's not jitter. I believe that much motion has to be commanded. How is the robot code controlling the servo position?

[JohnGilb]

As a note, I have seen a servo drift by ~30 degrees due to electrical interference from nearby high-current motor cables (though this was back in 2004).