Hello,
currently I am thinking about switching from FHEM to HA. One of my questions is how to implement my Homeatic devices into HA. In FHEM I am using a HMUART, based on Tasmota.
How can I start using such a “gateway” in HA?
As I am totaly new to HA, this question seems to be a bit stupid, but may someone can help me to find the right path. 
Best regards, Thomas