GitHub - midilab/aciduino: Cheap and DIY make in 1 hour, Roland TB-303 and TR-808 step sequencer clone +plus features aimed for musicians and djs to use it on live performance or for
Step Sequencer Drum Machine | ECE 4760 | Cornell University
Square Sequencer - e-licktronic
Overview | 16-Step Drum Sequencer | Adafruit Learning System