Many thx for the tip with Google Home. I could successfully connect all mentioned devices with Google Home, including a Daikin AC unit. Now i have all of these in one application instead of an app for every vendor. This was not possible with Samsung SmartThings. Normally i try to avoid Google services as much as i can and moving on to my own cloud at home. But the only thing which comes close to Google Home was OpenHAB and this requires Java and I dont want to install Java on my Raspberry Pi for only this reason. Anyway, it works now. So i can remove SmartThings from my phone. Many thx.
