{
  "added_at": "2026-11-08",
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "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.",
  "description_zh": "GE Opal 2 研究记录制冰机的连接器、标称电压、管路及前面板 I2C 通信，用于开发 Arduino 替换控制板。仓库包含协议笔记、原型电路图和固件代码；部分连接器资料、前面板及 RGB 行为仍待研究。",
  "entry_url": "https://awesomerea.org/resources/ge-opal-2-research-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/ge-opal-2-research-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/SomeAspy/GE-Opal-Reverse-Engineering-Project/blob/c2282f11ea924ad268a5c6396a68aba943da7abe/readme.md",
  "group": "cases",
  "id": "ge-opal-2-research-case",
  "json_url": "https://awesomerea.org/resources/ge-opal-2-research-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/ge-opal-2-research-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/ge-opal-2-research-case/index.md",
  "name": "GE Opal 2: ice maker hardware and I2C interface research",
  "name_zh": "GE Opal 2：制冰机硬件与 I2C 接口研究",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "limits",
    "license"
  ],
  "requirements": [
    "The hardware work concerns a GE Profile Opal 2.0 Ultra ice maker and an Arduino Nano ESP32 prototype.",
    "The schematics and code are marked unfinished.",
    "GPL-3.0 license for the project code and author-created schematics."
  ],
  "requirements_zh": [
    "硬件研究对象为 GE Profile Opal 2.0 Ultra 制冰机，原型使用 Arduino Nano ESP32。",
    "电路图与代码尚未定稿。",
    "项目代码和作者制作的电路图采用 GPL-3.0 许可证。"
  ],
  "scope": "unknown",
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/SomeAspy/GE-Opal-Reverse-Engineering-Project",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}