A servo programmer will allow you to set all different things in a servo. Like endpoints, speed, max torque allowed, etc. It is like putting 2 servos on a matchbox as well. It allows 2 servos to do the same exact thing. If you have 2 or more servos on some thing you do not want them to be fighting each other because they can burn up.
Originally Posted by DJO
What's that? Like a servo tester? I program servos through the radio...