Bubba Machine

Firmware for FM-1 (M-VAVE)

Six-track live groovebox written from scratch in C99: TR-style drum machine, 8-slice sampler, wavetable bass and three assignable synth/kit/MIDI tracks, with polymeter, p-locks and crash-resilient flash saves.

by Erbubar23

AnnouncedSource: openGPL-3.0-or-later

Bubba Machine pad sampler screen showing a waveform with the selected pad in brackets — Erbubar23, via github.com

Distribution: Build from source yourself
Source: github.com https://github.com/Erbubar23/bubba-machine
Homepage: erbubar23.github.io https://erbubar23.github.io/bubba-machine/

drums
sampler
sequencer
synth-engine
wavetable
emulator

Description

No code from other FM-1 firmware; only hardware facts from public reverse engineering. The README says to install only once a tested version exists: it runs in a desktop simulation and a WebAssembly emulator, and a hardware flasher is on the roadmap. The GitHub releases carry no firmware assets. Documentation is mostly Spanish.

Version history

Bubba Machine version history
Version	Date	Notes
0.5.0-beta	2026-10-12	Marked pre-release; no firmware attached.

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