Wolf heat pump data integration possible?

[imautohuttraeger]

I will get a heat pump "Wolf CHA-07/400V" with an interface "WOLF ISM7i Link Home LAN / WiFi"

I know that it is possible to get the data in Home Assistant. But I don't want to run HA in parallel.

So is there any chance for me to get it into Domoticz?

I don't necessarily need to control the heat pump but want to have at least the energy consumption for integration into the energy dashboard.

[waltervl]

You can try to setup an mqtt server and use the ISM72MQTT application to publish the data to MQTT the https://github.com/zivillian/ism7mqtt

When lucky this application supports Homeassistants MQTT Auto Discover protocol and then it can be linked to Domoticz with the MQTT AD Hardware gateway. Edit: It seems it has HADiscover somehow enabled: https://github.com/zivillian/ism7mqtt/b ... scovery.cs

If not you can link the MQTT topics with the MQTTmapper plugin to Domoticz.

[imautohuttraeger]

Excellent. Will try that when the heat pump will be installed next week or so and will notify the result here.

[waltervl]

It seems it has HADiscover somehow enabled: https://github.com/zivillian/ism7mqtt/b ... scovery.cs

[imautohuttraeger]

I have only found this sources for step-by-step instruction to implement it apart from HA, but didn`t succeed:

https://www.linux-tips-and-tricks.de/de ... er-raspber

Even tried an instruction via Chat-GPT, but also failed.

MQTT Broker is already running of course.

Does anyone know a step-by-step instruction for a non-pro?

[waltervl]

1. Make sure you use the correct files for your system from https://github.com/zivillian/ism7mqtt/releases . Use command

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 hostnamectl

to get the architecture of your system.
2. Then do the copy and chmod actions of https://www.linux-tips-and-tricks.de/de ... er-raspber

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sudo mkdir /opt/ism7mqtt
sudo chown $USER:$USER !$
mkdir /opt/ism7mqtt/makeconfig
unzip -u ism7config-linux-arm64.zip -d /opt/ism7mqtt/makeconfig/
chmod +x  /opt/ism7mqtt/makeconfig/createdump
chmod +x  /opt/ism7mqtt/makeconfig/ism7config
unzip -u ism7mqtt-linux-arm64.zip -d /opt/ism7mqtt/
chmod +x /opt/ism7mqtt/ism7mqtt
chmod +x /opt/ism7mqtt/createdump

3. Then run the following command to create a parameter.json file

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ism7config -i <ism7 ip/host> -p <ism7 password>

4. Then run ism7mqtt to see if everything runs fine

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ism7mqtt -m <mqttserver> -i <ism7 ip/host> -p <ism7 password>

5. If everything runs fine you can make a service out of it.
Or use the docker version if you already use docker

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docker run -d --restart=unless-stopped -v ./parameter.json:/app/parameter.json -e ISM7_MQTTHOST=<mqttserver> -e ISM7_IP=<ism7 ip/host> -e ISM7_PASSWORD=<ism7 password> zivillian/ism7mqtt:latest

Let us know what kind of errors you get on what step.

[imautohuttraeger]

Thank for the hint for using the correct files. Indeed it came out, that for my RasPi 3B+ I need the 32 Bit files (...linux_arm.zip instead of ...linux-arm64.zip). Up to creating the parameter.json file it worked. But when trying to run ism7mqtt, I get an error.

First I tried without user/PW of MQTT server

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/opt/ism7mqtt/ism7mqtt -m 192.168.1.230 -i 192.168.1.119 -p XYZ
MQTTnet.Adapter.MqttConnectingFailedException: Connecting with MQTT server failed (NotAuthorized).

Then I have added the correct user/PW like this:

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/opt/ism7mqtt/ism7mqtt -m USER:[email protected] -i 192.168.1.119 -p XYZ
MQTTnet.Exceptions.MqttCommunicationException: Error while connecting host 'Unspecified/<USER:PW>@192.168.1.230:1883'.

Is the Syntax <USER:PW@192...> wrong? Or Maybe I have to adjust something in Mosquito? Mosquito runs without problems with Domoticz.

[waltervl]

Do you need an account to use mosquito (see also MQTT setup fields in Domoticz)? If so you need to enter that as parameters.
Documentation of ism7mqtt is not very clear but i would try if command 'ism7mqtt -h' gives some extra options to start the application.
Else ask on the GitHub repository.