PurpleMonkey FM-1

Firmware for FM-1 (M-VAVE)

Toddler instrument: any key plays a pentatonic FM note or a drum over a backing beat, with four animated animal friends on screen and no menus.

by Quixotic7

ActiveSource: openGPL-3.0-only

Collage of PurpleMonkey FM-1 screens — Quixotic7, via github.com

Brick risk. Flashing this carries a known, documented risk of damaging the device.

Distribution: Browser installer (WebMIDI / WebUSB)
Source: github.com https://github.com/Quixotic7/PurpleMonkeyFM1
Homepage: quixotic7.github.io https://quixotic7.github.io/PurpleMonkeyFM1/

performance
synth-engine
fm

Install notes

Browser WebMIDI installer; update mode is OCT- + OCT+ + HOME held 5 s. Read docs/PURPLEMONKEY.md (Install, rollback) first. Browser emulator at /emu/.

Version history

PurpleMonkey FM-1 version history
Version	Date	Notes
0.11	2026-10-10	Marked pre-release; first public beta.

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