OH3 zigbee2mqtt Livarno Lux work in progress

Setup, Configuration and Use Beginners
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I know this is an old thread, but I found a working solution to the above problem.
First thing to note

  • I’m using OpeHAB 5.2, Mosquitto and Zigbee2MQTT; similar to above.
  • Zigbee2MQTT is set to oputput = attribute

If you use Zigbee2MQTT (Z2M) with the global configuration option set to output: attribute (instead of standard JSON), integrating Tuya-based RGB bulbs like the Lidl / Livarno Lux (HG06106) into openHAB text-based .things files can be painful.

Because attribute mode flattens everything into individual text sub-topics (like color-x, color-y, and brightness), openHAB’s native Color channel will throw exceptions, or get completely stuck on a single hardware boundary color (usually solid blue or solid green) if you try to map the incoming state topic directly.

After a lot of trial and error, here is the bulletproof, dual-channel configuration that splits the read/write logic to allow the openHAB UI color wheel and brightness sliders to work flawlessly without snapping back to zero.

Why this works:

  1. Write-Only Color: We completely strip the stateTopic from the color channel to prevent openHAB from choking on raw color-x decimal updates.
  2. Bundled HSB Payload: We use colorMode="HSB" to tap into openHAB’s native token arrays (%1$d, %2$d, %3$d). This forces openHAB to publish all three properties simultaneously to Z2M’s base /set topic, preventing the saturation slider from snapping back to zero.
  3. Read/Write Brightness: A separate dimmer channel handles the actual incoming state feedback safely.

The .things File Configuration

Place this inside your existing MQTT broker bridge block. Remember to replace Lidl_HG06106C_1 with your exact friendly name from Zigbee2MQTT.

Thing topic Lidl_HG06106C_1 "Z2M Lidl_HG06106C_1"{
            Channels:
		        Type switch : power "Lidl_HG06106C_1 ON OFF Switch" [stateTopic="zigbee2mqtt/Lidl_HG06106C_1/state", commandTopic="zigbee2mqtt/Lidl_HG06106C_1/set", on="ON", off="OFF"]
                // WRITE-ONLY COLOR: No stateTopic to prevent decimal parsing crashes
                Type color : color "Color Control" [
                    commandTopic="zigbee2mqtt/Lidl_HG06106C_1/set", 
                    colorMode="HSB", 
                    formatBeforePublish="{\"color\":{\"hue\":%1$d,\"saturation\":%2$d},\"brightness\":%3$d}"
                ]
                // READ/WRITE BRIGHTNESS: Keeps the slider state synced 
                Type dimmer : brightness "Brightness" [stateTopic="zigbee2mqtt/Lidl_HG06106C_1/brightness",commandTopic="zigbee2mqtt/Lidl_HG06106C_1/set/brightness",min=0,max=254]
                Type number : linkquality "Lidl_HG06106C_1 Link Quality" [stateTopic="zigbee2mqtt/Lidl_HG06106C_1/linkquality"]
        }

The .items File Configuration

Link your physical UI widgets to the newly created channels using this structure:

Switch    LidlHG06106C_1Power          "Lidl Bulb Power"          <light>       ["Light"]    {channel="mqtt:topic:YOUR_BROKER_NAME:Lidl_HG06106C_1:power"}
Color     LidlHG06106C_1Color          "Lidl Bulb Color"          <colorwheel>               {channel="mqtt:topic:YOUR_BROKER_NAME:Lidl_HG06106C_1:color"}
Dimmer    LidlHG06106C_1Brightness     "Lidl Bulb Brightness"     <dimmer>                   {channel="mqtt:topic:YOUR_BROKER_NAME:Lidl_HG06106C_1:brightness"}
Number    LidlHG06106C_1Linkquality    "Lidl Bulb Link Quality"                              {channel="mqtt:topic:YOUR_BROKER_NAME:Lidl_HG06106C_1:linkquality"}