{
  "added_at": "2026-11-06",
  "additional_evidence_urls": [
    "https://github.com/kronhait/cooper-hunter-ac-esphome/blob/aceab67f8621e5e17c52ffbbb9a7964524b79783/PROTOCOL.md"
  ],
  "category": "reconstruction-cases",
  "description_en": "Cooper Hunter AC documents the COM1 UART and infrared control messages of CH-IF140RK and CH-IF140RK2 units with a Gree GRZQ3-R V1 board. The author inferred UART status fields by comparing packets while operating the infrared remote. The resulting ESPHome design receives UART status and sends control through an infrared signal path.",
  "description_zh": "Cooper Hunter AC 记录了使用 Gree GRZQ3-R V1 板卡的 CH-IF140RK 与 CH-IF140RK2 空调的 COM1 UART 和红外控制消息。作者对比红外遥控操作前后的数据包，推断 UART 状态字段；最终 ESPHome 方案通过 UART 接收状态，经红外信号路径发送控制。",
  "entry_url": "https://awesomerea.org/resources/cooper-hunter-ac-protocol-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/cooper-hunter-ac-protocol-case/",
  "evidence_url": "https://github.com/kronhait/cooper-hunter-ac-esphome/blob/aceab67f8621e5e17c52ffbbb9a7964524b79783/README.md",
  "group": "cases",
  "id": "cooper-hunter-ac-protocol-case",
  "json_url": "https://awesomerea.org/resources/cooper-hunter-ac-protocol-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/cooper-hunter-ac-protocol-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/cooper-hunter-ac-protocol-case/index.md",
  "name": "Cooper Hunter AC: UART and infrared protocol investigation",
  "name_zh": "Cooper Hunter AC：UART 与红外协议调查",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "scope",
    "limits",
    "license"
  ],
  "requirements": [
    "Cooper Hunter CH-IF140RK or CH-IF140RK2 with the documented Gree GRZQ3-R V1 board, plus an ESP32 running ESPHome for the described setup.",
    "The final wiring uses UART receive only; control uses infrared signal injection.",
    "Some protocol fields are marked tentative in PROTOCOL.md.",
    "MIT license."
  ],
  "requirements_zh": [
    "文档所述方案需要采用 Gree GRZQ3-R V1 板卡的 Cooper Hunter CH-IF140RK 或 CH-IF140RK2，以及运行 ESPHome 的 ESP32。",
    "最终接线仅用 UART 接收状态；控制命令通过红外信号注入。",
    "PROTOCOL.md 将部分协议字段标为暂定。",
    "MIT 许可证。"
  ],
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/kronhait/cooper-hunter-ac-esphome",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}