Hey everyone,
Since I’m moving away from YAML configuration whenever I can 
I decided to turn one of my YAML setups into a proper integration. The amazing HA community already covered most stuff, but a few things were still missing. So I chose to make an integration for the Thessla Green heat recovery unit.
Until now, you had to set up Modbus TCP in YAML and manually configure all the addresses. With this integration, you just need to provide the IP address, port, and slave ID — that’s it! 
Since I made it for myself anyway, I figured I’d share it with you this holiday season 
Maybe someone will find it useful:
https://github.com/aLAN-LDZ/ThesslaGreen_HA
Perks of using the integration:
- Unique IDs for all entities
- The operation mode switch is now a cleaner
selectentity
If I find the time, I’d love to add a custom Lovelace UI card tailored specifically for this device in the future.
You can add the integration through HACS and configure it via the UI. If you spot any bugs, let me know!
Currently tested with:
Thessla Green Air Pack4
Happy holidays! 