MQTT state not updating

Setup, Configuration and Use Beginners
1

Hi,

I’m a bit out of options, so I hope someone else can explain what I’m doing wrong.
Currently running openHabian 3.4.2. with Mosquitto MQTT broker and Zigbee2MQTT, everything is working fine expect for one thing.

I recently purchased new Zigbee Smart plugs to try out, they are from Nous, Zigbee2MQTT documentation here: https://www.zigbee2mqtt.io/devices/A1Z.html

It paired correctly with Zigbee2MQTT, so I gave it a friendly name and added it to my thing file like the documentation describes, the thing looks like this:

     Thing topic socketPower1 "socketPower1" {
  Channels:
    Type switch : power             "Power"         [ stateTopic="zigbee2mqtt/socketPlug1/get", transformationPattern="JSONPATH:$.state", commandTopic="zigbee2mqtt/socketPlug1/set", on="ON", off="OFF" ]
}

The item looks like this:

Switch socketPower1 "socketPower1" { channel="mqtt:topic:mosquitto:socketPower1:power" }

The command part of the thing is working correctly, I can switch it to ON and OFF via openHab, but when I toggle the switch with the physical button or in the Zigbee2MQTT webgui, it doesn’t get updates in openHab. When I connect with a tool called MQTT Explorer to the MQTT broker, I can see the sates changing from OFF to ON.

Why isn’t it updating in openHab?

2

Does the info from MQTT explorer match with the setup in OH?

3

Thanks for the quick response, it seems to be the same info as the documentation describes:

Screenshot 2023-08-02 at 13.24.25
Screenshot 2023-08-02 at 13.24.251968×424 81 KB

4

Remove the get from the state topic to match mqtt explorer

5

I tried, but still nothing, when I flip the switch on the webGUI, the status in openHab keeps unchanged

6

Anything in your log file?
Maybe remove ON & OFF values in the thing. As these are the default values this should work by default.

Can you try to add same thing via user interface, to see if that’s a syntax issue in your thing file or something else wrong?

7

Ok, really strange, I commented the thing lines out so the thing would get deleted. Then I added the thing as you said through the user interface and configured it exactly the same and everything was working (also the update from zigbee2mqtt to openHab).

Then I deleted everything again in the user interface, uncommented all the lines again, saved it and now everything is also working from the thing file :slight_smile:

If anybody ever wonders, the thing now looks like this:

  Thing topic socketPower1 "socketPower1"  {
  Channels:
    Type switch : power             "Power"         [ stateTopic="zigbee2mqtt/socketPlug1", transformationPattern="JSONPATH:$.state", commandTopic="zigbee2mqtt/socketPlug1/set" ]
}

So, indeed you don’t need to place the get statement at the end of the topic.

8

You have also removed the on/off description in your thing.

Out of curiosity:
If you re-add (or create a duplicated thing)

on="ON", off="OFF"

To your thing, will it break again?