Case study

GE Opal 2: ice maker hardware and I2C interface research

GE Opal 2 research maps the ice maker's connectors, nominal voltages, plumbing and front-panel I2C communication to support an Arduino-based replacement control board. The repository includes protocol notes, a prototype schematic and firmware code. The author identifies incomplete connector documentation and unexamined front-panel and RGB behavior.

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

Stars: 2
Last commit: 2026-11-08
Language: C++

GitHub data as of 2026-11-10

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Evidence

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

How evidence classes are assigned

Requirements & limits

Prerequisites: The hardware work concerns a GE Profile Opal 2.0 Ultra ice maker and an Arduino Nano ESP32 prototype.
Limits: The schematics and code are marked unfinished.
License: GPL-3.0 license for the project code and author-created schematics.

Cite

BibTeX

@misc{ge-opal-2-research-case,
  title = {{GE Opal 2: ice maker hardware and I2C interface research}},
  howpublished = {\url{https://github.com/SomeAspy/GE-Opal-Reverse-Engineering-Project}},
  url = {https://github.com/SomeAspy/GE-Opal-Reverse-Engineering-Project},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/ge-opal-2-research-case/}}
}

Plain text

GE Opal 2: ice maker hardware and I2C interface research. https://github.com/SomeAspy/GE-Opal-Reverse-Engineering-Project (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/ge-opal-2-research-case/

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Primary sources

readme.md GitHub · SomeAspy/GE-Opal-Reverse-Engineering-Project · Revision c2282f1