This is my first "big" robot (actually it's a remote controlled car). Note it's controlled by wifi interface from second computer.
Explorer is based on old RC toy car. It has laptop computer on its back, big AGM battery on top of rear axis, USB camera in front mounted on two servos for rotation and one HAL unit to bridge laptop computer to servos and of course engines. Robot communicates with control application through Wi-Fi card.
More info, video and pictures on my page: www.marcinbogdanski.daesso.com