This program receives events from a Homematic CCU and publishes contained data on MQTT. It also subscribes to commands from MQTT and relays them to the CCU.

Currently supported devices:

• HmIP-BROLL: Shutter actuator for brand switches
• HmIP-SRH: Window handle sensor
• HmIP-SWSD: Smoke alarm with Q label

Home Assistant, when configured for MQTT discovery, can auto-detect sensors and device triggers published by this program.

• Python 3.7+
• hbmqtt
• pyhomematic

hm-mqtt-bridge.py --broker mqtt://broker.local --listen 0.0.0.0 xmlrpc://ccu.local:2010

Homematic's XML-RPC mechanism requires listening sockets on both ends. By default, a random port number gets allocated by pyhomematic. If you need a fixed port number, specify it with --listen <ip>:<port>.