non-'FRC legal' control systems?

[billbo911]

Originally Posted by Otaku

My senior project involves motors and I'm already somewhat familiar with robot control systems, but if I can't get permission to use an old IFI FRC control system for my project, I'll need to figure out how to take the values from the two pots in a joystick and turn them into PWM signals. And as cheaply as possible.

Essentially, I need to build a system that will be light, cheap, effective and robust for use in a wheelchair I am designing and building that is based off of some of 675's previous chassis designs.

Simply put: "Arduino"

$35 and you are good to go. All you need to do then is learn a little coding for the FREE Development environment. That's right, FREE!!

The code to convert analog to PWM is EASY!!
10 bit A/D gives values from 0 -1024.

Set the dig out high, wait 1 millisecond + wait a number of microseconds equal to the digital value read from the pot, set the dig out low. Repeat every 20 milliseconds.

This is just a rough outline and may require a little tweaking, but it works. I know, I already did it.