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Binary Sensors & Contacts (WHO = 25, WHO = 1, WHO = 9)

The MyHOME integration provides monitoring for dry contact interfaces, PIR motion sensors, and security auxiliary contacts across OpenWebNet WHO = 25, WHO = 1, and WHO = 9.

In v2, setup and management are 100% UI-first: binary sensors are automatically discovered from SCS bus events, and device presentation (such as choosing between a door sensor, window contact, or motion detector) is configured directly in Home Assistant's UI settings.

🚀 Supported Binary Sensor Types

1. Dry Contact Interfaces (WHO = 25)

  • Hardware: BTicino 3477 flush-mounted contact interface, magnetic reed switches, mechanical window switches, technical alarm contacts.
  • Addresses: WHERE = 31 through 3201.
  • Auto-Discovery: As soon as a dry contact changes state on the SCS bus, the integration automatically creates the corresponding binary sensor entity.

2. Motion / PIR Sensors (WHO = 1)

  • Hardware: Legrand 048822, BTicino BMSE1001 or standard SCS ceiling/wall motion sensors configured in scenario mode.
  • Operation: When movement is detected, the sensor broadcasts an event frame on WHO 1 that sets the binary sensor to on (Detected), returning to off (Clear) when timeout expires.

3. Auxiliary Alarm Sensors (WHO = 9)

  • Hardware: Auxiliary sensors, technical transmitters (water leak, methane gas), or peripheral contacts connected to the burglar alarm central unit.
  • Addresses: WHERE = 0 through 9.

🚪 Selecting Device Classes in the UI ("Show As")

In legacy versions, specifying whether a contact was a door, garage door, or window required manual YAML class: keys. In v2, this is configured directly in Home Assistant's UI:

  1. Navigate to Settings → Devices & Services → Entities.
  2. Select your binary sensor (e.g. binary_sensor.garage_entry_door).
  3. Click the Settings (gear) icon.
  4. Under Show As, select the appropriate device class:
  5. Door: Entry doors, interior doors.
  6. Window: Opening windows, skylights.
  7. Garage Door: Motorized or monitored garage gates.
  8. Motion: PIR motion and occupancy detectors.
  9. Moisture: Water leak detectors.
  10. Gas / Smoke: Technical safety sensors.
  11. Lock / Tamper: Anti-tampering switches on enclosures.
  12. Click Update. Home Assistant immediately applies appropriate dynamic icons (e.g. open/closed doors, motion waves) and integrates the sensor into Area security summaries.

🔄 Legacy YAML Note

Note

If you are upgrading from legacy v0.9 installations and still have manual binary_sensor: blocks in /config/myhome.yaml, please refer to the v0.9.4 Legacy Binary Sensor Documentation or the Legacy YAML Migration Guide. In v2, all binary sensors are discovered dynamically.