This simple robot offers more cowbell

Fellas, you’re gonna want that cowbell. And what better way to get that cowbell than with an automatic cowbell-playing robot that uses simple components to create a musical experience like no other. The system, built over at Adafruit, includes a simple Arduino controller, a potentiometer to control the speed of the cowbell hammer, and a few audio systems to play back some BÖC and the immortal words of The Bruce Dickinson: “More cowbell.”
It even includes a controller to a