pedalSHIELD by Electrosmash, is a programmable Arduino open-source guitar pedal made for guitarists, hackers and programmers. It plugs into an Arduino Due and allows you to program effects in C/C++ or download ready effects from the online library.

It is designed to be a platform to learn about digital signal processing, effects, synthesizers and experiment without deep knowledge in electronics or programming.

See all the specs on their website, including  a custom 3D printed cover available in several colors!