marisko
Firmware for SP-1 (Teenage Engineering)
Early-stage community custom firmware for the SP-1, currently a minimal Zephyr base with LED animation, a watchdog and a power-off-to-bootloader button.
by softmodded
- Distribution
- Build from source yourself
- License notes
- The README states MIT; the repository has no LICENSE file.
- Source
- github.com https://github.com/softmodded/marisko
- platform
- os
Description
Built on Zephyr and the nRF Connect SDK using the SP-1-dev hardware documentation. The README says the project is at a very early stage and lists only a bouncing LED animation across the four playback LEDs, a Function button that powers off into the bootloader, and a watchdog that prevents boot loops. A command-line companion, rome, handles flashing and loading stems. The author notes that an AI model assisted with the code and commit messages.
Install notes
Build from source (see BUILDING.md in the repository) and flash with the Solderless utility or the rome command-line tool. The SP-1 has no hard reset; press Function to power off, then any button or USB to return to the bootloader.
Version history
| Version | Date |
|---|---|
| v0.0.1 | 2026-06-21 |