NEW GUIDE: John Park’s Spinning Disc Step Sequencer @adafruit @johnedgarpark #adafruit #synthdiy

The Spinning Disc Step Sequencer Learn Guide is live! Play fresh drum patterns with this 16-step disc sequencer, made with CircuitPython on Feather M4 Express and Crickit! It uses reflection sensors to read the steps marked on the paper wheel — four tracks of different sound samples can be triggered. The outer clock track keeps everything synchronized.

You’ll use a continuous rotation servo to spin the disc, driven by the Crickit FeatherWing, plus the capacitive touch pads provide tempo controls to increase or decrease the BPM (beats per minute) of your player. CircuitPython code running on the Feather M4 handles all of the coordination of the elements, and audio mixer playback duties as well.

You can even create and edit your own drum step patterns with a blank paper template and a black chalk marker!