Hello Marcel,
I am actually trying to control my roller shutters with Home Assistant. For that, I actually use Nodon soft remote controls and Eltako FSB61NP dimmers. What I have succeeded is : to know the sender_id of my nodon remote from hexdump, to install FHEM on Rpi (I only succeed to get a “2020-05-29 10:31:16 TCM TCM310_0 CONNECTED” message, but I totally don’t know how to use FHEM 
), to configure enocean intégration in HA. But I don’t succeed to activate anything. 
Please will you be able to help me to understand your process FHEM > MQTT > HA more in details. I don’t find many discussions, I have just start HA for 2 weeks (just these roller shutter are missing), and even if FEHM seems to be powerful I am very incompetent on that