Back in 2007 there was a bomb scare in Boston. It was the result of a viral marketing campaign. When I saw the LED signs they used I wanted to have one myself. Not to scare people, but I liked to have such a powerfull sign. So when the Evil Mad Scientists came out with their Peggyboard I just had to have one. And I've been using it ever since.
Today I want to build the Instructables robot with you.
So this is what you need: