The MicroGranny, a DIY Granular Sampler

Vaclav Pelousek and friends pack a ton of features into their Arduino-based microGranny musical instrument, including WAV player, sampler, 8 presets with 15 sounds each, MIDI input, and a whole lot of knobs and buttons to play with pitch, loop length, shift speed, and so on. They’re selling kits and will soon release the source. Also, love the PCB art!