{
  "added_at": "2026-11-08",
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "DMR-39 Remote Bridge reconstructs remote control of the SUPER DMR-39 set-top box by probing its I2C front panel and capturing NEC infrared signals. The resulting ESP32-C3 firmware and Python tools expose mapped buttons through a web relay, with HDMI capture used to observe responses. The author reports mapping all 41 remote buttons.",
  "description_zh": "DMR-39 Remote Bridge 通过探测 SUPER DMR-39 机顶盒前面板的 I2C 交互并捕获 NEC 红外信号，重建遥控功能。ESP32-C3 固件与 Python 工具通过网页中继发送已识别的按键，分析过程用 HDMI 采集观察设备响应。作者报告已映射全部 41 个按键。",
  "entry_url": "https://awesomerea.org/resources/dmr39-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/dmr39-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/evnchn-agentic/dmr39/blob/f1d46b5bb564b8a72a318cdb0d43eba6ca64212a/README.md",
  "group": "cases",
  "id": "dmr39-case",
  "json_url": "https://awesomerea.org/resources/dmr39-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/dmr39-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/dmr39-case/index.md",
  "name": "DMR-39 Remote Bridge: reconstructing set-top-box remote control",
  "name_zh": "DMR-39 Remote Bridge：重建机顶盒遥控功能",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "limits",
    "license"
  ],
  "requirements": [
    "A SUPER DMR-39 set-top box, ESP32-C3, and access to the demodulated IR traces; HDMI capture supports the documented observation workflow.",
    "The author reports finding only one working key code through I2C injection before switching to IR control.",
    "MIT licence."
  ],
  "requirements_zh": [
    "需要 SUPER DMR-39 机顶盒、ESP32-C3，并能接触到解调后的红外信号线路；文中的观察流程还使用 HDMI 采集。",
    "作者报告通过 I2C 按键注入仅发现一个可用键码，随后改用红外控制。",
    "采用 MIT 许可证。"
  ],
  "scope": "unknown",
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/evnchn-agentic/dmr39",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}