With an Axon, it seems quite simple to run servos directly off of the board itself, which is working great for very simple setups. I'm a little concerned about my next project though - I am hoping to use two sonar sensors and three IR rangefinders, along with four servos - all of which are known to be quite 'noisy'.
I've read that separating motor power is a good idea to avoid issues, so I was thinking I would use a battery pack for the four servos and then a separate battery pack for the sensors and logic.
My question is
a) is this advisable, or is there something I don't understand that makes it not-relevant advice?
b) what is the best way to do this? I mean, I could conceivably rip the power lines out of the connectors on the servos can do something....hackish....with it, but it seems not very 'clean'. I thought of maybe nabbing something like a servo controller, which I could then supply separate unregulated power to and run the servos off that - though of course this carries a price tag and some extra wiring headache of its own (I'm not sure how I would wire the three UART pins from the Axon to the 5 pins exposed by a serial servo driver....)
Appreciate any helpful tips.