12-13-2020, 08:56 AM
if you have "switch terminal board" , your switch connect to this board, when you press the button, controller will feedback information , you can use "TCP-IN" in Node-Red to read it and do some relay actions, this is a good way.
I think now you have use controller's input port for this function, ,because relay board's input port is mainly for sensor use for trigger, not suitable for switch button use.
I think now you have use controller's input port for this function, ,because relay board's input port is mainly for sensor use for trigger, not suitable for switch button use.