Neutron alternate firmware
Firmware for Neutron (Behringer)
Alternate firmware for the Behringer Neutron, written for the Cortex-M0 with a polyphonic LFO, band-limited hard sync and waveshaping shown in the author's demo videos. The author considers it abandoned.
by mrf-r
- Distribution
- Prebuilt image you flash yourself
- Source
- github.com https://github.com/mrf-r/Neutron
- synth-engine
- lfo
Description
The README says everything works and runs fast, but that the code is heavily optimised for Cortex-M0 and is hard to maintain, and that the author no longer owns the synth. The prebuilt files, a manual and ST's DFU tool for Windows were moved from OneDrive to a GitHub release in June 2026. Author demo videos cover poly LFO, hard sync and waveshaping.
Install notes
Flash over DFU using ST's tool on Windows or dfu-util on macOS and Linux.
Version history
| Version | Date | Notes |
|---|---|---|
| r15f | 2026-06-23 | Release date is when the files were re-hosted on GitHub; the original build date is not stated. |