A super cheap 16-encoder MIDI controller based on the RP2040-Zero.
All hardware documentation (Schematics, BOM, Interactive BOM, 3D Model, and Gerber viewer) is available on the GitHub Page:
- Microcontroller: RP2040-Zero
- Inputs: 16x EC11 rotary encoders
- Visual Feedback: 16x 8-LED WS2812B NeoPixel rings (mounted on top of the encoders and soldered to the PCB via pin headers). AliExpress link
- Design Goal: Minimal components, extremely cheap to manufacture and assemble.
- Firmware: Develop and release a pre-compiled MIDI firmware (e.g., using Arduino IDE, CircuitPython/MicroPython, or KMK).
- Enclosure: Design and release a 3D-printable case.
Distributed under the MIT License. See the LICENSE file for more information.