Zigbee2MQTT Battery % Stuck or Wrong: Why It Happens
Diagnose stuck or implausible Zigbee2MQTT battery values: raw scaling, voltage curves, stale reports and model-specific low flags, with practical checks.
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Sonoff Power Sensors Stuck? eWeLink’s 2026 Cloud Block
SonoffLAN documents a 2026 cloud power-update restriction. Check the local fix introduced in v3.11.0, exact device support and VLAN connectivity.
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Zigbee2MQTT linkquality Explained: What the Number Means
Zigbee2MQTT's linkquality is a single-hop number measured at the coordinator. What it really tracks, why the network map disagrees, and when to act.
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How to Write a Custom Zigbee2MQTT External Converter
Create and load a Zigbee2MQTT external converter: exact device matching, a modern template, enable_external_js, runtime loading and invalid-code checks.
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Zigbee2MQTT Unavailable After HA Restart: bridge/state
Diagnose Zigbee2MQTT entities unavailable after a restart. Check current bridge-state refresh, MQTT discovery, birth messages and broker persistence.
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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.
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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.