I found these cheap relay board that would be great choice for new home. It has digital inputs so I could wire on momentary wall switches for lights and roller blinds and it would still work without batteries and active ethernet connection, that is the most important to me. It can also be mounted to DIN35 rail.
On the ESP there is Dingtian, I don’t know much about it. I guess I could flash it with Tasmota (I know tasmota can be implemented with smartthings using edge driver)
Did anyone been able to successfully implement it with smartthings or used similar smart home relay board with smartthings?