{
  "added_at": "2026-11-09",
  "additional_evidence_urls": [
    "https://github.com/duramson/ritto-esp/blob/872acd254e01392b97e006c011e05d289c60d3cd/home-assistant/README.md"
  ],
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "ritto-esp investigates the Ritto 7630 TwinBus intercom's board signals with oscilloscope captures, distinguishing apartment and street bell events by their chime and apartment-line behavior. An ESP32-C6 running ESPHome exposes separate bell sensors and a door-open command to Home Assistant through optocoupled inputs and output.",
  "description_zh": "ritto-esp 通过示波器测量 Ritto 7630 TwinBus 对讲机的板级信号，依据响铃线与楼层门铃线的变化区分公寓门铃和街道门铃。ESP32-C6 运行 ESPHome，经光耦连接输入与开门输出，并向 Home Assistant 提供两个门铃传感器和开门命令。",
  "entry_url": "https://awesomerea.org/resources/ritto-esp-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/ritto-esp-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/duramson/ritto-esp/blob/872acd254e01392b97e006c011e05d289c60d3cd/README.md",
  "group": "cases",
  "id": "ritto-esp-case",
  "json_url": "https://awesomerea.org/resources/ritto-esp-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/ritto-esp-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/ritto-esp-case/index.md",
  "name": "Ritto 7630: reconstructing intercom bell and door signals",
  "name_zh": "Ritto 7630：重建对讲机门铃与开门信号",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "license"
  ],
  "requirements": [
    "A Ritto 7630 intercom, Seeed XIAO ESP32-C6, optocouplers, resistors and USB-C power.",
    "ESPHome and Home Assistant are used for the supplied configuration and automations.",
    "MIT licence."
  ],
  "requirements_zh": [
    "需要 Ritto 7630 对讲机、Seeed XIAO ESP32-C6、光耦、电阻和 USB-C 电源。",
    "配置与自动化使用 ESPHome 和 Home Assistant。",
    "采用 MIT 许可证。"
  ],
  "scope": "unknown",
  "targets": [
    "protocol"
  ],
  "url": "https://github.com/duramson/ritto-esp",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}