This plugin for HomeBridge adds a temperature sensor. The temperature is one of the sensors connected to a Luxtronik2 based heat pump controller (Siemens, Novelan, Wolf, Alpha Innotec).
The code uses an API exposed by these Luxtronik2 devices on Port 8888.
Newer versions of Luxtronik devices have a different API and are not supported. For these devices there is this plugin.
Install and configure Homebridge and Homebridge Config UI X.
Open the configuration UI and navigate to the Plugins section. Search for "Luxtronik2" and click "Install".
Next, configure the plugin.
To activate the plugin, restart Homebridge.
A temperature sensor should appear on your iOS device as accessory in the "HOME" app.