Philips Hue Light(s) show as offline

Add-ons Bindings
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1

I’m using the following setup (all using the latest versions as of 5th of november 2023) all is running default:

  • RaspberryPi4
  • Docker
  • Openhab4 (in a Container)
  • Zigbee2MQTT (+ USB dongle) in a Container, (MQTT output type = attribute).
  • Mosquitto (MQTT) in a Container
  • Note: NO PHILIPS HUE BRIDGE INVOLVED.

I’ve successfully connected my lights to Z2M, see the online/offline status and can control them.
Added the MQTT binding.
OpenHab doesn’t auto-detect them, so I had to add them manually, as a generic mqtt thing an example below:

UID: mqtt:topic:Mosquitto:KantoorLamp1
label: Kantoor - Lamp 1
thingTypeUID: mqtt:topic
configuration:
  payloadNotAvailable: offline
  availabilityTopic: zigbee2mqtt/Kantoor - Lamp 1/availability
  payloadAvailable: online
bridgeUID: mqtt:broker:Mosquitto
location: Kantoor
channels:
  - id: kantoorlamp1onoff
    channelTypeUID: mqtt:switch
    label: Kantoor- Lamp 1 - on/off
    description: ""
    configuration:
      commandTopic: zigbee2mqtt/Kantoor - Lamp 1/set
      stateTopic: zigbee2mqtt/Kantoor - Lamp 1/state
      off: off
      on: on
  - id: KantoorLamp1Brightness
    channelTypeUID: mqtt:dimmer
    label: Kantoor - Lamp 1 - Dimmer
    description: ""
    configuration:
      commandTopic: zigbee2mqtt/Kantoor - Lamp 1/set/brightness
      min: 0
      stateTopic: zigbee2mqtt/Kantoor - Lamp 1/brightness
      max: 254

This allows me to control the light (on/off, brightness) perfectly via OpenHAB.
However, it shows “offline”.

Schermafbeelding-2023-11-04-091357
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Any clue on how I can resolve this? Breaking my head over this for a few days now.
Tried to use with & without spaces in the light name, no difference (and why should it, controlling the lights works perfectly).

2

Fixed it myself already. Maybe someone can document this in OpenHAB?

Schermafbeelding 2023-11-05 161225
Schermafbeelding 2023-11-05 161225765×994 33.6 KB

Topic had to be configured as follows: {“state”:“online”}.
Found this in the Z2M logs when I was playing with switches. Doesn’t help that only after 10 min the status is changed in Z2M (and subsequently published).

UID: mqtt:topic:Mosquitto:KantoorLamp1
label: Kantoor - Lamp 1
thingTypeUID: mqtt:topic
configuration:
  payloadNotAvailable: '{"state":"offline"}'
  availabilityTopic: zigbee2mqtt/Kantoor - Spot 1/availability
  payloadAvailable: '{"state":"online"}'
bridgeUID: mqtt:broker:Mosquitto
location: Kantoor