Our Friend the RC Servo. Remote control hobby servos are remarkable little devices. Each one is a self-contained closed-loop actuator, available across a wide spectrum of price and torque.

Demonstration of a servo-powered RC rover navigating terrain. Focuses on mechanical design, steering accuracy, and real-time ...

You already have a remote control with keypad and IR light. Hack that to talk to a microcontroller which would control the servo and the IR light. And there you go.

The Raspberry Pi already makes a pretty great computer for a webcam, but if you want to actually control what that Pi is looking at, you'll need actual movement.Make has a guide to make the Pi ...