Drum track sequencer demo

Drum track sequencer uses optical sensors and a Feather RP2040 running CircuitPython to send four tracks of MIDI notes to your sampler or drum synth. Built with LEGO, you use minifigure heads to create your beat patterns. John Park's Learn Guide coming soon. Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------