Hi,
Here is a quick howto:
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[already done] Flash your bridge with tasmota zbbridge firmware following Sonoff Zigbee Bridge (ZBBridge) Zigbee compatibility (ignore the ZHA part)
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Install and configure a MQTT server somewhere on your network, reachable by your bridge and openHAB. Mosquitto is a good choice, and is included on openHABian.
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Declare your MQTT server in tasmota. In the tasmota console, you should see MQTT messages sent.
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Configure Tasmota MQTT formatting for zigbee (in tasmota console) :
- SetOption89 1
- SetOption83 1
- SetOption112 1
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Check the information is correctly published on MQTT server. MQTT Explorer for Windows is very useful.
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Declare your MQTT server in OpenHAB (see my setup below)
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In OpenHAB, declare your MQTT bridge, things and channels.
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In OpenHAB, declare your items
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Done !
Some useful links :
- MQTT and OH3 : [OH3] MQTT Setup and Configuration
- Zigbee2Tasmota and openhab setup openHAB - Tasmota
- My OpenHAB things file Success with Sonoff zigbee bridge and zigbee binding - #10 by cyrilpawelko
- Zigbee2Tasmota commands Commands - Tasmota
Hope this helps.