A simple Linux python script to query arbitrary smartmeter water sensor devices and send the data to an MQTT broker, e.g., the famous Eclipse Mosquitto. After data made the hop to the MQTT broker it can be used by home automation software, like openHAB or Home Assistant.
On a modern Linux system just a few steps are needed to get the daemon working. The following example shows the installation under Debian/Raspbian below the /opt directory:
$ git clone https://github.com/zibous/ha-watermeter.git /opt/ha-watermeter
$ cd /opt/ha-watermeter
$ sudo pip3 install -r requirements.txt
To match personal needs, all operation details can be configured using the file config.py The file needs to be created first:
$ cd /opt/ha-watermeter
$ cp config.py.dist config.py
$ nano config.py
$ chmod +x app.py
$ python3 app.py ## or ./app.py
You most probably want to execute the program continuously in the background. This can be done either by using the internal daemon or cron.
Attention: Daemon mode must be enabled in the configuration file (default).
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Systemd service - on systemd powered systems the recommended option
sudo cp /opt/ha-watermeter/service.template /etc/systemd/system/ha-watermeter.service sudo systemctl daemon-reload sudo systemctl start ha-watermeter.service sudo systemctl status ha-watermeter.service sudo systemctl enable ha-watermeter.service
Sensor setting see: smartmeter-watermeter.yaml