A team of five high school seniors have released some videos of their new Guitar Hero bot named DeepNote. This bot uses a group of custom photodiode modules with an 8 nanosecond latency placed on the screen to sense the notes. The Parallax Propeller system takes this input and controls solid state relays hooked into the guitar’s circuitry. After we looked at a few videos of the early prototype system, we could really see how it has evolved. They have custom PCBs and a really nice frame for the photodiode sensors. You can find more info on their How It Works page and view a demo video embedded below.