Zigbee2MQTT QoS Explained: What It Actually Guarantees
Zigbee2MQTT's qos setting only confirms delivery to your MQTT broker, not that the Zigbee radio command reached the device. Here's the gap explained.
~/archive $ ls -la
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Zigbee
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Zigbee2MQTT Exposes to HA Entities: Why You Get That Type
Why a Zigbee2MQTT expose becomes a number, a select, or a plain sensor in Home Assistant. The access bitmask and the category attribute, explained.
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Sonoff SNZB-04P Door Sensor: Zigbee2MQTT Setup Guide
Pairing a Sonoff SNZB-04P into Zigbee2MQTT or ZHA without eWeLink: what it exposes, the CR2477 battery question, and why tamper misbehaves on both stacks.
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Zigbee2MQTT Discovery Not Working in Home Assistant
Zigbee2MQTT devices showing in the frontend but missing from Home Assistant means MQTT discovery broke, not Zigbee. Here's the real mechanism and fix.
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Zigbee2MQTT Transmit Power: Why It Might Do Nothing
Zigbee2MQTT's transmit_power has per-chip ceilings, a firmware precondition, adapters that reject it outright, and a reason your LQI won't move.
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Zigbee2MQTT Extensions vs External Converters Explained
Zigbee2MQTT extensions change runtime behavior, not device support. Here's how they differ from converters, and how enable_external_js gates both.
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Zigbee2MQTT adapter_concurrent: What It Actually Controls
adapter_concurrent shows up in Zigbee2MQTT's advanced config with no explanation. Here's what the maintainer says it actually does — a command queue depth, not a signal or bandwidth dial — and when raising it is (and isn't) the fix.
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Zigbee2MQTT Network Key: Changing It Without Losing Groups/Scenes
Changing the Zigbee2MQTT network key re-pairs every device and drops groups and scenes. The startup error that follows, and how to rebuild them.
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Zigbee2MQTT Reporting Configuration: min/max Intervals
A slow-updating sensor and a broker-flooding device share the same cause. How Zigbee2MQTT's min/max reporting interval and reportable_change actually work.
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Zigbee2MQTT Network Map Explained: Reading LQI and Depth
Zigbee2MQTT's map shows LQI, depth and zero-value links with no legend. What each number means, which ones are cosmetic, and the few that need action.