MATRIXSYNTH: Lightweight Arduino ESP32 MIDI Sequencer + Live-Looping Session Demo


Sunday, May 18, 2025

Lightweight Arduino ESP32 MIDI Sequencer + Live-Looping Session Demo


video upload by Marcel Licence

"I built a small MIDI sequencer for Arduino ESP32 synthesizer projects.
With it you can:
Record, play back, and overdub notes.
Use many slots - record a new loop and switch slots while it plays.
Change the tempo anytime, even during playback.
Set the loop length and the number of pre-count bars before you start.
Play it together with my polyphonic e-piano project.

The firmware is still work-in-progress.
I am fixing bugs to keep it stable and to remove short audio pauses that happen when the memory moves data."

E-Piano project: https://github.com/marcel-licence/ml_...
Other projects can be found on GitHub: https://github.com/marcel-licence

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