[Michael Hill]

Originally Posted by Necroterra

I don't know very much about the electronics side of things, but I am pretty sure PWM has some distinct advantages over CAN (CAN default refresh rates are pretty bad, they can max-out, and the protocol is (I think) expensive, proprietary, and complex). It could very likely see a decline, but I doubt they would completely eliminate PWM anytime soon.

Again, I just hit buttons until the robot goes, so I might be totally off the mark here.

CAN isn't the only alternative. Serial communication (SPI) is a valid communications means as well.