robot electronics i need help

[NoodleKnight]

In my experience, the IFI Victors tend to be more cost effective than other speed controllers. Take note, the IFI Victors are controlled by PWM input -- you don't need the expensive IFI robot controller/OI to do this, a simple RC transmitter/reciever that you can pick up at a hobby store for less than $100 will achieve the same effect (they're meant to drive servos, which also take a PWM input).

Hope this helps.