[Ether]

Originally Posted by roystur44

We use this to generate a pwm signal to a motor controller. Great device to have to test the motors without hooking up the electronics.

http://www.servocity.com/html/dual_servo_driver.html

Originally Posted by lcoreyl

IMO that $50 would be better served towards an arduino with a potentiometer. This gives you a tool with endless possibilities (including acting as a motor controller). Actually, AndyMark now has a shield for an arduino that can make it replace your cRIO for testing, which makes an arduino all the more valuable.

Or spend $0 and make one with an old junker laptop.