Don't even try to deny it -- you've been holding one mean grudge against that ridiculously accurate DeepNote bot ever since you saw it dominate Guitar Hero in mid-July. Really though, all that pent up aggression is completely unnecessary, and if you've been fruitlessly aiming to concoct one of your own, we've found the perfect place to start. The video posted up after the jump gives a fantastic overview of how the device actually works, and while it's far (very far) from simple, it's nothing the seasoned DIYer couldn't handle on an extended weekend. Give it a look if you're head over heels for PCBs and flashing LEDs (oh, and shameless rock 'n roll).
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