Case study

ambit-firmware: mapping Palette hardware for replacement firmware

ambit-firmware develops alternative firmware for Palette devices using mapped AT90USB1286 pin connections. The hardware notes identify links to magnetic ports, I2C lines, LEDs and flashing headers; the firmware implements USB CDC control, basic LEDs and a failsafe bootloader path. Its roadmap lists display control and component communication as unfinished.

Targets: Firmware
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2021-10-01
Language: C
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Builds with Make and AVR tooling for AT90USB1286; the README recommends a Teensy++ 2.0 development board.
Prerequisites: Flashing a production Palette device may require opening its base and using ISP headers to recover bootloader access.
Limits: Display control and the two-wire component interface are unfinished.
License: GPL-3.0 license.

Cite

BibTeX

@misc{ambit-firmware-case,
  title = {{ambit-firmware: mapping Palette hardware for replacement firmware}},
  howpublished = {\url{https://github.com/khimaros/ambit-firmware}},
  url = {https://github.com/khimaros/ambit-firmware},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/ambit-firmware-case/}}
}

Plain text

ambit-firmware: mapping Palette hardware for replacement firmware. https://github.com/khimaros/ambit-firmware (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/ambit-firmware-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

docs/HARDWARE.md GitHub · khimaros/ambit-firmware · Revision 8affaad
README.md GitHub · khimaros/ambit-firmware · Revision 8affaad
ROADMAP.md GitHub · khimaros/ambit-firmware · Revision 8affaad
LICENSE GitHub · khimaros/ambit-firmware · Revision 8affaad