I use the Overkiz integration to get the temperature values of an Atlantic Cozytouch Gateway and that works fine.
I like to set the polling interval for the temperature that by default seems to be 1 hour to a shorter period.
Is there a way to do this?
The polling interval is 30 seconds and cannot be adjusted. It seems that your device only broadcasts the new value once per hour, or probably after a hard refresh command is called. (e.g. when you open the app).
Your integration in home assistant works fine.
On my atlantic installation there is an external temperature sensor but it does not appears in home assistant with overkiz integration. Is that normal ?
Please create a new issue on GitHub and include your diagnostics information, but more information about where you see this temperature sensor in the Atlantic app.