Servo Controller Chip

This controller chip can control up to six servos. It can control them by receiving a command from another microcontroller. You can also radio control the servos thru a "Vex" receiver. 

For the people who don't know what a "VEX" is. It is a company that sells robotic parts and kits. They sell a "VEX" transmitter and receiver on their site for $129.99 but you can get a "VEX" transmitter and receiver for about $20 to $30 on "Ebay" and many other places.