A few weeks ago Jenn sent me a video of a robot that a Danish guy named Frits had built out of paint mixing sticks and hot glue. He called it "Yellow Drum Machine", and it basically just drives around until it finds something interesting, and then it plays a drum beat on it, records the beat with a microphone, then plays that back on its giant smokestack-like speaker and taps out other beats along with it, or dances to the music. It was adorable, and I wanted one of my own. As I looked at the pictures more closely, I realized that I actually already had a lot of the motors and sensors that he used to build his, and so it was decided — I have to build one of my own.

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