WOLF Smartset MQTT Bridge (for FHEM https://fhem.de/) based on https://github.com/kgbvax/wolfmqttbridge

I was looking for a way to integrate my Wolf heating with FHEM and came along the wolfmqttbridge. I added a init file to make it run as a service and added a describtion how to integrate with FHEM.

Install

Prerequisite: You have a local MQTT server running.

First you need to install go:

sudo apt-get install golang

Copy the git repository:

git clone https://github.com/ste-ta/fhemwolfmqttbridge

Build the project:

go build

Copy the executable to /opt/wolfsmartset:

sudo mkdir /opt/wolfsmartset

sudo chmod 755 wolfmqttbridge

sudo cp wolfmqttbridge /opt/wolfsmartset

Install service and start:

Change username and passwort and MQTT-Brokersettings in wolfsmartset.init

Copy wolfsmartset.init to init.d

sudo cp wolfsmartset.init /etc/init.d/wolfsmartset

Start the service:

sudo /etc/init.d/wolfsmartset start

MQTT

wolfmqttbridge will create a topic called wolf MQTT with various parameters

FHEM integration

In order to integrate into FHEM you will need MQTT https://wiki.fhem.de/wiki/MQTT:

Install MQTT module

sudo cpan install Net::MQTT:Simple

sudo cpan install Net::MQTT:Constants

Create MQTT connection:

define mqtt MQTT 127.0.0.1:1883

Create Wolf MQTT device:

define mywolf MQTT_DEVICE

Set autocreate to wolftopic:

attr mywolf autoSubscribeReadings wolf/+/state

Info from original readme

Update rate defaults to 20 seconds (which I hope is acceptable since the Wolf-Smartset web-clients polls data every 10 seconds)

What works

• Talk to Wolf-Smartset.com portal (re-engineered API, if there is a spec for this I would be interested)
• Emit auto-confguration MQTT messages for home-assistant

What does not work

• Only one device supported (it takes the first device found in the portal)
• No direct connect to bridge in the local network - I could not find a spec for this interface
• This is currently read-only

Running

For running this on the command-line try --help-long

To support running in a bare container, most args can be passed in as Environment variables, the following variables are mandatory:

• WOLF_USER - your userid at https://www.wolf-smartset.com
• WOLF_PW - password for your user at https://www.wolf-smartset.com
• BROKER - address of the MQTT Broker to use, if you are running this as container under hass.io and use the Mosquitto broker add-on this is tcp://core-mosquitto:1883
• BROKER_USER - username for the MQTT broker (when using hass.io mosquitto a valid hass.io user works)
• BROKER_PW - password for the MQTT broker ( " " )

To run this as container on hass.io, use e.g. the Portainer add-on and configure a new container:

• Image: kgbvax/wolfmqttbridge:latest
• ENV: Define the variables listed abover
• Network: Add this to the "hassio" network
• Restart Policy: On Failure / 5 (recommended)
• Resources: As you like should work with 64MB and some tiny CPU

MQTT Topics

• Topics for values are auto-generated like this: wolf/<Value-Name>/state The root topic can be overwritten using WOLF_MQTT_ROOT_TOPIC environment or --rootTopic. Value-Name is the value as it appears on the GUI, (with spaces removed). Payload is the raw value (as string)
• Default topic for home-assistant MQTT discovery is homeassistant (which is HA's default). This can be changed with HA_DISCO_TOPIC or --haDiscoTopic