Support for Daikin CO2 hotwater heat pump system

[billgeo]

Hi,

I have a Daikin RQWX60ZV1A (C02 heat pump hot water system). This uses the Daikin Airbase BRP15B61 Controller. I am keen to view and control via Home Assistant and would be happy to write some code to support that.

But wanted to check if you would be open to this? And also is this the right place? I can't find any other integrations for this combination of controller and hot water system (I guess because it's quite new?) and I've tried the existing Daikin AC integration and Daikin Atherma HACS integration - both of which return errors when trying to connect.

I've done some network packet capture it appears to have an http API to read and write data. I've reverse engineered most of that already and I was hoping to fork this repo and push some changes back.

Here's some example endpoints.

curl "http://<ip-address>/skyfi/hotwater/set_control_info?boil_level=0"
ret=OK

curl "http://<ip-address>/skyfi/hotwater/get_unit_info"
ret=OK,err=0,err_type=0,err_code=0,pow=1,drive_p=1,drive_p1s=42,drive_p1e=14,drive_p2s=22,drive_p2e=28,boil_level=0,boost=0,vacation=0,vacation_days=2,vacation_remain=2,temp_set=63.0,temp_outside=14,temp_tank=56

This would be first attempt and engineering my own Home Assistant integration, so forgive me if I'm going about this all wrong. 😄 Thanks for any help you can provide.