Quote Originally Posted by Acetronics View Post
3) The Pulses MUST be sent regularly @ ~ 30-50 times per second. Even if the servo has to keep on its position.
For clarification for the less experienced...

Alain is ONLY talking about old fashioned "cheap" analog servos. Most of the new digital servos (which aren't all that expensive, either) will accept a single pulse; they will go to that position and hold. I've used some in an application where the maintenance of an analog servo position was not practical.