The Arbotix Commander is a controller for robots. It's not the cheapest, but I've gotten my money's worth over the years, using it to control 5+ different robots.
The Arbotix Commander is an Arduino clone with a shield that includes two joysticks and 10 buttons, and headers for an XBee. Powered by four AA batteries. Sold by Trossen Robotics.
My controller includes additions of:
- a fixed switch wired in parallel with one of the buttons
- XBee serial port is shared with headers for a Pololu Wixel on one side.
- Carbon fiber coverplate for nifty appearnce