Charlie is my third robot I built in high school. He uses two servos with hockey puck wheels for moving around. He has a moving sensor head built with two servos. His brain is an Arduino and his power source is a 3000 mAH Ni-MH battery. I basically built him to test out different ideas and sensors.
He was entered in the Canadian National Robot Games as a line following robot
He was my first RF project
Here's Charlie being controlled by a Nintendo Nunchuk