Aqara’s T1/T2/E1/H1/P1 Codes: What They Actually Mean
Compare Aqara T1, T2, E1, H1 and P1/P2 products by exact model, wiring and protocol, without assuming the suffix defines a generation or tier.
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Local Control
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Zigbee2MQTT Many-to-One Route Failure: What It Means
Understand Ember many-to-one route errors, distinguish isolated route changes from missed operations, and investigate firmware, routers and radio conditions.
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Should You Update Your Zigbee2MQTT Coordinator Firmware?
When to update Zigbee2MQTT coordinator firmware, what to back up, and how to choose the update procedure for your exact adapter.
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Zigbee2MQTT MQTT Broker Security: A Practical Checklist
Secure Zigbee2MQTT and Mosquitto with current authentication, topic permissions, TLS, frontend protection and careful network configuration.
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Zigbee2MQTT Groups vs Scenes: Why Scenes Don’t Show in HA
Zigbee2MQTT groups show up automatically in Home Assistant. Scenes don't. Here's why, and the local MQTT workaround for triggering them anyway.
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Zigbee2MQTT Ghost Device 0x0000000000000000: How to Fix It
Zigbee2MQTT shows a phantom device at 0x0000000000000000 that keeps rejoining after removal. What it means and the fixes that actually clear it.
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Zigbee2MQTT No Converter Available Error: How to Fix It
Zigbee2MQTT logging 'No converter available' on repeat? Here's what the message means, when to ignore it, and the 2.11+ config change that broke old fixes.
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Block Tuya Devices From the Internet Without Losing Control
Blocking Tuya's cloud the naive way breaks local control. Here's the heartbeat mechanism behind it, and the blocking order that actually works.
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Sonoff ZBDongle-E vs ZBDongle-P for Zigbee2MQTT: Which to Buy
Both dongles run Zigbee2MQTT, but the ZBDongle-E's Ember adapter still isn't stable-tier while the ZBDongle-P works out of the box. Which to buy.
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Aqara/Xiaomi Zigbee: Routers vs End Devices Explained
Which Aqara/Xiaomi Zigbee devices strengthen your mesh, and which just ride along. A local-only audit for your device list, no new hardware needed.