CHOMPI open source firmware
Firmware for CHOMPI (Chase Bliss)
Official open-source release of the CHOMPI firmware: TAPE 2.0 sampler, TEMPO 1.0 pattern generator, WAVE 1.0 wavetable synth and a beta bootloader, with hardware files and factory card profiles.
- Distribution
- Prebuilt image you flash yourself
- License notes
- The CHOMPI name, logo and panel artwork are not covered; see TRADEMARKS.md.
- Source
- github.com https://github.com/CHOMPI-Club/CHOMPI
- Homepage
- chompiclub.com https://www.chompiclub.com/opensource
- sampler
- sequencer
- synth-engine
- sdk
Description
Released as a discontinuation open-source bundle. TAPE 2.0 is the sampler firmware every unit shipped with. TEMPO 1.0 is its pattern generator counterpart. WAVE 1.0 is a wavetable synth that the repository positions as a starting point for people writing their own firmware. Bootloader v6.4 (beta) never shipped on units and was written to improve stability with the Daisy Seed and fix edge cases inherited from the Electrosmith bootloader. The repository also contains PCB, BOM and enclosure files and the factory microSD card profiles. The repository says it is a permanent source and will likely get no further updates.
Install notes
The firmware README covers setting up the development environment, building and loading onto a CHOMPI. MD5 checksums are provided with the release.
Version history
| Version | Date |
|---|---|
| TAPE 2.0 | 2026-09-29 |
| TEMPO 1.0 | 2026-09-29 |
| WAVE 1.0 | 2026-09-29 |
| Bootloader 6.4 (beta) | 2026-09-29 |