enable and tune zigbee2mqtt's device availability feature to detect offline zigbee devices

domain: zigbee2mqtt.io · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Enable the feature globally with availability: enabled: true in configuration.yaml, or scope it to specific devices in their per-device config instead of globally.
  2. Understand that active (mains-powered) devices are expected to check in periodically (default ~10 minutes) and get pinged if they miss a check-in.
  3. Understand that passive (battery-powered) devices use a much longer check-in window (default ~25 hours) before being pinged.
  4. Monitor the retained zigbee2mqtt/[FRIENDLY_NAME]/availability topic, which publishes {"state":"online"} or {"state":"offline"}.
  5. Note that Zigbee2MQTT re-fetches device state automatically when a previously offline device reconnects or re-announces itself.

Known gotchas

Related routes

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Add support for an unsupported Zigbee device to Zigbee2MQTT by writing an external converter
zigbee2mqtt.io · 6 steps · unrated
Detect device offline status using MQTT Last Will and application-level heartbeats
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