M-VAVE FM-1 firmware

Rainbow mode

Music toy for small children, with Felucca behind a key combo. by joshbartlettband-web

Rainbow mode preview from its author
Preview by joshbartlettband-web

About

Rainbow mode shows every note in its own colour and gives each key an animal friend with a sound and a beat, with a volume limit for small ears. A key combination opens the full Felucca synth for grown-ups.

Kids

Compatibility

Member “works on my unit” reports per release come with the community layer.

Latest release upstream

FM-1 Rescue (test build) · fm1-rescue-test · 22 Oct 2026 · pre-release · 1 release listed

  • fm1-rescue.apk · 74 KBSHA-256 121288ff92e94ad7acd6eebf481d47fb6e9a23bcc2562e601772ae8d107b5afa
  • fm1-transporter-LICENSES.txt · 5 KBSHA-256 b2f120d013982c8995dc391e78ae8599081f0372b0d32f85410dd7aef77365f5
  • fm1-transporter.uf2 · 161 KBSHA-256 874cb927cb80fd20b8e5a6fe83da85b5995095518cefd1c4e7ecabe6c87bab82

Synced from the author’s repository on 29 Oct 2026. Files stay with the author; Maru does not host them.

Install and safety

Untested. No compatibility reports yet. Maru has not tested it on hardware.

Install with the author’s installerTry in browser (author’s emulator)

Maru offers its own install only for open-source releases with a complete install record, after its installer has completed a full install and restore on a physical M-VAVE FM-1.

  • Put the unit on stock V15 first, and keep your own copy of the stock file from M-VAVE’s downloads so you can go back.
  • Back up your presets with the current firmware’s own export before installing.
  • Rescue: none documented for this firmware.
  • If something goes wrong, follow the recovery ladder.
  • No numbered releases; the date is the last update the directory saw.
  • The author's installer can put M-VAVE's V15 back.