Alarm configuration

Burglar Alarm entities are developed for OpenWebNet WHO = 5 (alarm_control_panel).

The integration supports both Dynamic Bus Auto-Discovery and explicit YAML Configuration via myhome.yaml.

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Supported Hardware

Central intrusion alarm units and partition devices, including:

• BTicino 3485 / 3486 Alarm Central Units
• BTicino HC4600 / L4600 Keypads and control units
• BTicino 3481 and zone expansion modules
• Technical alarm transmitters (water/gas leak detectors)

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Supported Features & States

The alarm_control_panel platform provides:

• States:
  • disarmed (deactivated / idle / maintenance)
  • armed_home (partial / active zone)
  • armed_away (total system active / engaged)
  • triggered (intrusion alarm, technical alarm, tampering, anti-panic, silent alarm)
• Features:
  • ARM_AWAY (*5*1*<where>##)
  • ARM_HOME (*5*1*<where>##)
  • DISARM (*5*2*<where>##)
  • TRIGGER (*5*17*<where>## panic alarm)
• Global Broadcast Zone 0 Listening: Entities automatically subscribe to global broadcast zone 0 telemetry (myhome_update_<mac>_5_0) alongside their specific zone/partition address (myhome_update_<mac>_5_<where>), guaranteeing synchronized state updates across all alarm panels.

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Configuration Structure

In your /config/myhome.yaml:

f454:
  mac: '00:03:50:xx:xx:xx'
  alarm_control_panel:
    central_alarm:
      where: '0'
      name: Central Alarm
      manufacturer: BTicino
      model: 3486
    zone_1:
      where: '1'
      name: Ground Floor Alarm
      manufacturer: BTicino
      model: 3485

Parameters

• where (Required): The OpenWebNet address of the alarm partition or central unit.
  • '0': Central unit / global system broadcast
  • '1' through '8': Specific partition or zone
• name (Required): Friendly name for the entity in Home Assistant.
• manufacturer (Optional, default: BTicino S.p.A.): Hardware manufacturer string.
• model (Optional, default: Burglar Alarm / F4201): Hardware model string.

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Dynamic Bus Auto-Discovery & Testing

You do not need to manually configure myhome.yaml if your alarm unit communicates on the SCS bus:

1. Dynamic Auto-Discovery: Any incoming OWNAlarmEvent frame received on the SCS bus (e.g. *5*1*0## for arming, *5*2*0## for disarming, or *5*15*0## for intrusion) automatically discovers and creates the alarm_control_panel entity.
2. Interactive Testing via Bus Monitor: You can test the platform directly in Home Assistant using the Lovelace <myhome-bus-card> Command Injector:
   • Query Central Status: *#5*0##
   • Query Zone Status: *#5*#1## (for zone 1)
   • Arm System: *5*1*0##
   • Disarm System: *5*2*0##
   • Trigger Panic: *5*17*0##
   • Simulate Intrusion Alarm: *5*15*0##