Openhab3 mqtt problem

Setup, Configuration and Use Beginners
1
  • Platform information:
    • Hardware: Proxmox VM
    • OS: Openhab 3 - Docker
    • openHAB version: 3

hi there. coming from openhab 2.5 and mqtt1, try to bring this to OH3… but actually i have no idea anymore :frowning: can you help me for this?

.things

Bridge mqtt:broker:mosquitto "MQTT server" [host="10.0.20.130", clientID="OpenHAB2 MQTT Server"]

Thing mqtt:topic:PowWohnzimmer "PowWohnzimmer Power" (mqtt:broker:mosquitto) {
    Channels:
        Type number : Power        [stateTopic="tele/PowWohnzimmer/SENSOR", transformationPattern="JSONPATH:$.ENERGY.Power"]
}

MQTT Server and PowWohnzimmer Power shows ONLINE in OH3

.items

Number:Power       Power          "Power [%.1f W]"                      {channel="mqtt:topic:tele:PowWohnzimmer:Power"}

mosquitto is working, check with Tasmota Device Manager and MQTT.fx

Logs from MQTT.fx:

 [19:36:20] tele/PowWohnzimmer/SENSOR {"Time":"2021-01-01T19:37:50","ENERGY":{"TotalStartTime":"2018-12-08T09:53:14","Total":365.618,"Yesterday":0.512,"Today":0.288,"Period":0,"Power":10,"ApparentPower":32,"ReactivePower":30,"Factor":0.30,"Voltage":221,"Current":0.143}}
[19:36:50] tele/PowWohnzimmer/STATE {"Time":"2021-01-01T19:38:20","Uptime":"0T05:37:24","Vcc":3.219,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"POWER":"ON","Wifi":{"AP":1,"SSId":"WirelessAP02","BSSId":"E0:63:DA:CA:97:4A","Channel":6,"RSSI":84,"LinkCount":1,"Downtime":"0T00:00:03"}}
[19:36:50] tele/PowWohnzimmer/SENSOR {"Time":"2021-01-01T19:38:20","ENERGY":{"TotalStartTime":"2018-12-08T09:53:14","Total":365.618,"Yesterday":0.512,"Today":0.288,"Period":0,"Power":11,"ApparentPower":33,"ReactivePower":31,"Factor":0.33,"Voltage":221,"Current":0.149}}
[19:37:20] tele/PowWohnzimmer/STATE {"Time":"2021-01-01T19:38:50","Uptime":"0T05:37:54","Vcc":3.229,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"POWER":"ON","Wifi":{"AP":1,"SSId":"WirelessAP02","BSSId":"E0:63:DA:CA:97:4A","Channel":6,"RSSI":84,"LinkCount":1,"Downtime":"0T00:00:03"}}
[19:37:20] tele/PowWohnzimmer/SENSOR {"Time":"2021-01-01T19:38:50","ENERGY":{"TotalStartTime":"2018-12-08T09:53:14","Total":365.618,"Yesterday":0.512,"Today":0.288,"Period":0,"Power":10,"ApparentPower":32,"ReactivePower":30,"Factor":0.31,"Voltage":221,"Current":0.143}}

Logs from OH3:

19:07:29.412 [INFO ] [o.transport.mqtt.MqttBrokerConnection] - Starting MQTT broker connection to '10.0.20.130' with clientid OpenHAB2 MQTT Server
19:07:29.447 [INFO ] [hab.event.ThingStatusInfoChangedEvent] - Thing 'mqtt:broker:mosquitto' changed from OFFLINE to ONLINE
19:07:29.462 [INFO ] [hab.event.ThingStatusInfoChangedEvent] - Thing 'mqtt:topic:PowWohnzimmer' changed from OFFLINE (BRIDGE_OFFLINE) to ONLINE

the states from the tasmota seams not to come here?

also the Item in OH3 shows “NULL” as value.

im stuck and don’t know how i can now debug/troubleshoot this…

thanks for reading

2

Take out tele.

channel="mqtt:topic:PowWohnzimmer:Power"

mqtt = MQTT Binding
topic = Topic Thing (as opposed to a Bridge/Broker Thing)
PowWohnzimmer = Thing ID
Power = Channel ID

3

thank you sir!

and for the explanation… works now.

4

Thank you so much for that definition of the parts of the topic. As you know, I have read the documentation until my eyes glazed over and THAT never jumped out at me. I now have a MUCH better idea of how to set up a topic. THANK YOU!!!

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