picotouch_drumcard

Playing card-sized (2.5"x3.5") sequencer / synth / USB / MIDI touch controller

Successor to the picotouch_bizcard MIDI controller

Features

17 capacitive touch pads arranged in a step-sequencer layout
15 reverse-mounted LEDs as status / touch indicators
TRS-A MIDI In and Out
Audio out (via 12-bit PWM)
Battery powered, with lipo battery charging circuit
Powered by Raspberry Pi Pico board
Programmable with CircuitPython, Arduino, etc.

Example code

Drum sequencer + synth
MIDI controller
Macropad
USB-MIDI interface

picotouch_drumcard_render1a.mp4