Can't connect my tasmota flahed tuya devices via MQTT and Mosquitto

[helipus]

I succesfully flahed my Tuya plug device called Avatar AWP08L Plug.

Avatar AWP08L Plug (AWP08L) Configuration for Tasmota

It is now running Tasmota 8.2.0.

I successfully connected to my Mosquitto Server running on my Synology NAS DS716+ with this plug and I was I able to send turn the plug on and off via mqtt-spy.
I can turn the plug on with:
Topic: cmnd/tasmotaplug01/POWER
Data: ON
I can read the status of the plug with a subscription to:
Topic: stat/tasmotaplug01/POWER

But I can’t get the plug connect with my openHAB2 2.5.2 also running on my Synology NAS DS716+.
I have done the following:

1. Installed the MQTT Binding
   via Paper UI → Add-ons → Bindings → MQTT Binding (binding-mqtt - 2.5.2)
   I can see it now here: Configuration → Bindings
2. Added a MQTT Broker
   via Configuration → Things → Add → MQTT Binding → MQTT Broker
   Configuration of the broker:
   Broker Hostname/IP: 192.168.0.2 (IP of my Synology NAS DS716+)
   Broker Port: 1883
   Username: mqtt
   Password: ******
   The Broker got the following ID mqtt:broker:db13a14f and is shown as ONLINE.
3. The openhab.log looks like:

2020-03-30 18:54:00.666 [INFO ] [.reconnect.PeriodicReconnectStrategy] - Try to restore connection to ‘192.168.0.2’. Next attempt in 60000ms
2020-03-30 18:54:00.673 [INFO ] [.transport.mqtt.MqttBrokerConnection] - Starting MQTT broker connection to ‘192.168.0.2’ with clientid openHAB helipus
2020-03-30 18:55:00.677 [INFO ] [.reconnect.PeriodicReconnectStrategy] - Try to restore connection to ‘192.168.0.2’. Next attempt in 60000ms
2020-03-30 18:55:00.681 [INFO ] [.transport.mqtt.MqttBrokerConnection] - Starting MQTT broker connection to ‘192.168.0.2’ with clientid openHAB helipus

4. Channel for my plug
   Under the MQTT Broker I added a channel with
   id: mqtt:broker:db13a14f:tasmotaplug01
   MQTT Topic: stat/tasmotaplug01/POWER
   Payload Condition:
   Separator Character

5. plug.items
   Switch plug01 “Steckdose Avatar” { mqtt=“<[mqtt:broker:db13a14f:stat/tasmotaplug01/POWER], >[[mqtt:broker:db13a14f:cmnd/tasmotaplug01/POWER:command:*:default]” }
   I also tried:
   Switch plug01 “Steckdose Avatar” {channel=“mqtt:broker:db13a14f:tasmotaplug01”}

6. default.sitemap
   Default item=plug01

I get the following in openhab.log:

[INFO ] [el.core.internal.ModelRepositoryImpl] - Refreshing model ‘default.sitemap’
[INFO ] [el.core.internal.ModelRepositoryImpl] - Refreshing model ‘plugs.items’
[WARN ] [.transport.mqtt.MqttBrokerConnection] - Failed subscribing to topic stat/tasmotaplug01/POWER
java.util.concurrent.CompletionException: com.hivemq.client.mqtt.exceptions.MqttSessionExpiredException: Session expired as connection was closed.

What am I doing wrong? What do I miss?

• Platform information:
  • Hardware: Synology NAS DS716+ with Paketinstallation for OpenHAB and Mosquitto
  • Java Runtime Environment: Java 8 1.8.0_241
  • openHAB version: 2.5.2

[rossko57]

You’d normally add a generic Thing under the broker Thing, and add your channels to that.

Looks to me that you have an OH to broker problem though.

[helipus]

Thank you for your time!
I can only add channels here under my Thing.and no generic Thing.

I must have done something wrong in the steps before.

[helipus]

Do I have to use this?

[Sascha_Billian]

Do you already have a broker installed?
If not, yes you would need a broker. I’m not sure which one is better. The built in (from your screenshot) or mosquitto. I’m using mosquitto and I’m quite happy with it
But anyhow, you need a broker

[helipus]

Yes I have the Broker Mosquitto installed on my Synology NAS. But I seem to have it not connected correctly in openHAB. How is the correct way today? I never discovered a thing in my Inbox.

[Sascha_Billian]

@helipus

Yes I have the Broker Mosquitto installed on my Synology NAS

Yes reading your first post again i see now that you already have the broker installed. Sorry for asking

Since your broker thing is online, credentials seem to be ok. I’ve just tried to use wrong credentials and the thing immediately goes offline.
Are you using a secure connection?

If yes, try disabling it.
And also: Since the broker is running on the same machine, try “localhost” as the hostname/IP instead of the external IP of your NAS

[rossko57]

You don’t want anything to do with the “system broker” stuff, when you are already using an independent broker (Mosquitto).

There are a couple of hundred posts about MQTT, I’m sure some of them cover establishing a broker connection with PaperUI. Do you really want to give IP, or should you be using localhost?

OpenHab, Shelly1, Mosquitto/REST - does not work

That is your broker thing You now need to add a new MQTT generic thing PaperUI -> Configuration -> Things -> + -> MQTT -> Add manually -> Generic Thing

A large proportion of those posts also cover configuring for Tasmota.
This is mostly using xxx.things files, but the process is the same when using PaperUI

Using Sonoff Power Switches with Tasmota firmware and openHAB2 MQTT2 binding

Hi guys, after hours of working on my openHAB2 configuration for my Sonoff Smart Switches, using the Tasmota firmware, I got that running, using the new MQTT2 binding. As for now I have 7 Sonoff Power Switches and didn’t want to configure them through PaperUI. After a hint from @Dim I got my configuration completely in files, providing me with the ability to do some slight changes on all channels at the same time. This is just meant as an example and I would be more than happy, get more hints …

[helipus]

Okay here is the solution. I needed to restart my openhab and all the errors have been gone. But I also was not using the right order and elements. The correct way is:

1. Install the MQTT Binding
   via Paper UI -> Add-ons -> Bindings -> MQTT Binding (binding-mqtt - 2.5.2)
2. Add a MQTT Broker
   via Configuration -> Things -> Add -> MQTT Binding -> MQTT Broker
3. Add a Generic MQTT Thing
   via Configuration -> Things -> Add -> MQTT Binding -> Generic MQTT Thing
4. Add in the Generic MQTT Thing a channel for every Tasmota plug:
   
   
5. default.items
   Switch tasmotaplug01 “Steckdose Waschmaschine” {channel=“mqtt:topic:plugs:tasmotaplug01”}
6. default.sitemap
   Default item=tasmotaplug01

Thats it. Sadly this took me a full day… To many different documentations on this which are not fitting well.

[rossko57]

Tell us about the documentation you found lacking?