KC868-ATC Tuya HRC Zehner rs232 integration

[PHNijborg]

Hello,

I have purchased the KC868-ATC V1.4 and want to use the rs232 functionality to control a Heat recovery system.
I use the tuya app to control my house, however i am not sure how to convert this app and KC868-ATC to the full protocol functionallity in the pdf...

Anyone any ideas?

I have a tuya developer account and Arduino IDE, i have created a IDE code, but doesn't work, the connection to tuya is missing i think...

[admin]

you can check with your KC868-ATC arduino source code, just when received turn on/off relay command, modify the source code , output command as your heat system's RS232 command.