Zigbee2MQTT Event Entities vs Legacy Action Sensor Explained
Zigbee2MQTT 2.0 switched off the sensor.*_action entity your button automations used. Here's what replaced it, and which local path to rebuild on.
~/archive $ ls -la
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Integration
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Sonoff TRVZB Radiator Valve: Zigbee2MQTT + Home Assistant
Pair the Sonoff TRVZB into Zigbee2MQTT with no Sonoff bridge or eWeLink account, set valve opening degree, and drive it off an external room sensor.
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Aqara/Xiaomi Zigbee Router Compatibility Explained
Some Zigbee routers can't keep Aqara or Xiaomi sensors connected. Which brands are documented as failing, why it happens, and the fix to try first.
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Zigbee2MQTT Retain vs state.json: What Survives a Restart
Which restart you had decides the fix: Zigbee2MQTT republishes state on its own in two of three cases, and retain only covers the third. All local.
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Zigbee2MQTT Multi-Endpoint Devices: Why switch_l1, switch_l2
Zigbee2MQTT names multi-gang switch entities switch_l1, switch_l2, or switch_left. What an endpoint is, why naming varies, and how to map each gang.
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Sonoff SNZB-01 Wireless Button: Zigbee2MQTT + Home Assistant
Pair a Sonoff SNZB-01 button with Zigbee2MQTT or ZHA, write press automations that survive the Zigbee2MQTT 2.0 action change, and buy the right coin cell.
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Zigbee2MQTT MQTT Topics Explained: set, get, Availability
A practitioner's map of Zigbee2MQTT's MQTT topic model: state, /set, /get, availability, bridge topics, and the three output modes, all local, no cloud.
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ZHA to Zigbee2MQTT Migration: Re-Pair or Convert DB
Migrating from ZHA to Zigbee2MQTT: the reliable re-pair method, the two-part no-re-pair shortcut, and how to sequence it without losing your mesh. Stays local.
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Zigbee2MQTT Rename Device: What Breaks in Home Assistant
Renaming a Zigbee2MQTT device changes its MQTT topic instantly but not its Home Assistant entity IDs. What breaks, what doesn't, and how to rename safely.
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Zigbee2MQTT database.db Corrupted or Wiped: What to Do
Zigbee2MQTT lost every device after a restart, or database.db is 0 bytes? What the file stores, why it happens, and how to recover before re-pairing.