I finally had the time to finish my Remeha logging cable.
After some soldering and testing (switching pins and rebooting my CV/Boiler) i finally got the Live Monitoring working in Recom. (see images below)
Since this step is completed, i wanted to find a way to get this data in my Domoticz panel.
I found a topic which is created for a Calenta, and a ESP8266 board, so i'm not sure if it's useable or will brick/break my Boiler.
Any other Remeha Avanta users which are using this?
FT232RL:
https://ibb.co/cHvXkA
Recom Live Monitoring:
https://ibb.co/jK0bCq
RJ10 Layout:
https://ibb.co/fZSOsq