How convenient, I just got installed a Daikin not even knowing it could have WLAN capabilities, discovered that it has, that is cloud-only but it wasn't like that til long ago. Currently I'm using this bridge to their cloud Onecta for Home Assistant (https://github.com/jwillemsen/daikin_onecta) and so far it's working great.

But this project is definitely nicer! But I don't fully understand how do I connect the ESP32 to the aircon. I see you can buy a cable on Tindie but... oh wait, I know see a badly illuminated part of the attached YouTube video where he does open the thing up and connect the cable but really, it's not that clear to me (especially considering there are a gazillion slightly different Daikin split models out there).

Any help appreciated (even if it's just a pointer to RTFM)