cgk-025v3l-b.
You need rs485 module.
I am using the model SPRSUN CGK-040V3L-B
12kw, R32, motherboard of ELECHICO model CC902, Elfin-EW11, Sprsun Heat Pump App, NO Tuya
Can I integrate the heat pump into Home Assistant with the Elfin via Modbus with your yamel?
Or should I still buy the Zlan 7110m?
https://a.aliexpress.com/_EI8cH21
Or is it better to use an esp?
Thank you for your work, I look forward to your answer!
I use the original elfin connection with heat pump : GitHub - PiterPiotr/Sprsun-PC: Integration of the Sprsun CGKxxxV3L-B heat pump with HA