Controlling 20+ Servos using Mega vs Servo controller

Other Hardware Motors, Mechanics, Power and CNC
1

Hello all,

I'm about to get started on a hexapod project, and I was wondering, are there any pros/cons of using an Arduino Mega to control lots of servos vs. using a servo controller for the same?

Also, for powering the servos, should I power the servos in sets of 3 vs powering all of them together?

I'm pretty new to such projects that require a large number of servos so any help would be appreciated!

Thanks!

Solomon

2

Servo library can support 48 supposedly.

Why don't you start with that and see how it goes? Creating the pulses for each servo is kind of a set & forget thing using internal timers, so doing it internally vs telling an external controller where to go to shouldn't be all that much different computing power/time wise.
Powering in sets of 3 should be fine, as long as your power supply puts out enough amps for all 3 moving at once if that's what you're planning on doing with them.