Instructions
Download the firmware .bin file below. Remove the USB stick from the front of Proteus and plug it into your computer.
Drag the firmware file onto the USB stick. Make sure it's the only .bin file on the USB stick.
Plug the USB stick back in to Proteus.
Power cycle the module.
Drag the firmware file onto the USB stick. Make sure it's the only .bin file on the USB stick.
Plug the USB stick back in to Proteus.
Power cycle the module.
CALIBRATION MAY BE REQUIRED IF UPGRADING FROM before v1.1 to v1.1
or later. OTHERWISE, NO CALIBRATION REQUIRED
| Version | Date | Download | Notes | Power-on lights |
| 1.0 | Apr 13, 2025 | Click to download | Initial public release | light pink |
| 1.0.1 | Apr 29, 2025 | Click to download | Updates lights more regularly when triggers are not coming in | light pink |
| 1.0.3 | May 27, 2025 | Click to download | Increases knob dead zones at zero | light pink |
| 1.0.4 | July 7, 2025 | Click to download | Fixes light flicker when locked & infinite patience Fixes length indicators not lighting up with very slow knob turn |
light pink |
| 1.1 | July 19, 2025 | Click to download |
Now only saves to flash when the clock is stopped to avoid interruption Adds option for single direction octave shifts |
turquoise |
| 1.2 | July 30, 2025 | Click to download |
Tons of bug fixes Added Simple Mode: turn on in web configurator to active one-knob-per-function mode that turns off silver params |
turquoise |
| 1.21 | Aug 1, 2025 | Click to download |
Bug fixes: fixes save issues and improves note accuracy | turquoise |
| 1.23 | Sep 30, 2025 | Click to download |
Bug fix: fixes bug where reset returned to second step instead of first Feature: Proteus now saves the firmware version on the USB stick in version.txt | turquoise |
| 1.3 | Dec 1, 2025 | Click to download |
Feature: You can now change the Length CV in jack to instead control Gate Length in the web configurator Feature: You can now adjust how long since the last trigger before a save occurs Feature: Proteus now indicates when it is saving with a yellow glow in the center Feature: When gate passthrough is enabled, rest notes are muted and will not pass through triggers Fix: The vary gate with rests option was broken in a previous release but has now been fixed Fix: Fixed an issue where the last note in the sequence was always the first to be unmuted Fix: Changing length or sleep with CV no longer triggers the lights Fix: Knob lock animations are smoother | turquoise |
| 1.3.2 | Dec 13, 2025 | Click to download |
Fix: Difficulty changing length to the full 32 steps has been fixed Fix: Mutate knob did not save previous position on restart Fix: Sequence length was not saving properly after restart | turquoise |
| 1.3.3 | Dec 28, 2025 | Click to download |
Fix: Writing of version file is more reliable Internal: Improvements of hardware testing | turquoise |
| 1.4 | March 27, 2026 | Click to download |
Feature: New option in the web configurator to make the first note of the sequence always default to the
root note of the scale (plus any transposition) Feature: When you are on the Tuning scale, the step lights will show yellow to remind you the scale is set to Tuning Fix: Fixed a quantization bug where small residual voltages in the transpose jack could lead to pitch changes Fix: Lowering base voltage to 1V works properly now Fix: If you select a custom scale that is empty, Proteus defaults to the major scale Fix: If calibration values are bad, Proteus reverts to reasonable defaults | turquoise |
| 1.4.1 | April 17, 2026 | Click to download | Fix: Version file writes correct version | turquoise |