I just wanted to share that I developed an app to sync digitalSTROM devices with MQTT: GitHub - gaetancollaud/digitalstrom-mqtt: Bridge between digitalSTROM and MQTT
I was using the digitalSTROM biding of openHAB, but was never fully satisfied. For example, with my installation, when I pushed a physical button, the state of the devices was not reflected in OpenHAB.
In addition, I wanted openHAB to be the master of my automation and not use digitalSTROM advanced features. What I needed was a basic actuators interface (which digitalSTROM doesn’t provide easily since it highly coupled to scene).
Maybe it can help some other digitalSTROM users around here.
Edit1: As mentioned by @hmerk, normally the state should be reflected in openHAB, so I guess I just configured something wrong.