Smart Home Automation Forum

Hi Kincony, nice to meet you. i am james from S. Korea.
I have bought a smart controller (A8Sv2) and i am wondering how to connect the HMI(LCD touch ) for this. since it needs serial i/f . can you advise. 
https://www.kincony.com/esp32-8ch-relay-...eased.html

ou can find a RS485 HMI display.
if you want write arduino code, you can do anything with rs485 device.