I've been busy over the last couple of days working with my friend, Colin Karpfinger in building a computer controlled, autonomous shooting robot for the DefconBots competition. The robot basically has to identify and and shoot down targets in a shooting gallery. Colin is a really smart guy and he has already created a servo motor based pan/tilt assembly for moving the gun! You'll find some videos here. Now, he's planning to connect a relay to his parallel port which will trigger an electric airsoft gun. Awesome, isn't it?