Home Assistant

MQTT Alarm Support

This platform enables the possibility to control an MQTT alarm. The alarm will only change state after receiving the a new state from state_topic. If these messages are published with RETAIN flag, the MQTT alarm will receive an instant state update after subscription and will start with correct state. Otherwise, the initial state will be unknown.

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# Example configuration.yaml entry
alarm_control_panel:
  platform: mqtt
  state_topic: "home/alarm"
  command_topic: "home/alarm/set"
  name: "MQTT Alarm"
  qos: 0
  payload_disarm: "DISARM"
  payload_arm_home: "ARM_HOME"
  payload_arm_away: "ARM_AWAY"
  code: "mySecretCode"

Configuration variables:

  • state_topic (Required): The MQTT topic subscribed to receive state updates.

  • command_topic (Required): The MQTT topic to publish commands to change the alarm state.

  • name (Optional): The name of the alarm. Default is ‘MQTT Alarm’.

  • qos (Optional): The maximum QoS level of the state topic. Default is 0. This QoS will also be used to publishing messages.
  • payload_disarm (Optional): The payload do disarm alarm. Default is “DISARM”.
  • payload_arm_home (Optional): The payload to set armed-home mode. Default is “ARM_HOME”.
  • payload_arm_away (Optional): The payload to set armed-away mode. Default is “ARM_AWAY”.
  • code (Optional): If defined, specifies a code to enable or disable the alarm in the frontend.