Another one on my gate integration, I am trying to get a signal from the gate controller(Roger) when the gate is opened by normal methods, ie keyfob or manual exit button. My plan was to take a voltage signal from the controller and pass it into a GPIO pin to pull it high, via a relay. The only issue I can see is that state will stay high as the voltage will probably be from a light contact that will be on for the duration of the gate opening procedure.
So how does the GPIO in node work, is it just triggered by the high state/state change and doesn't care if the state stays high for a long period? What happens after the likely 5-10 mins when the state will go back to low? Can this state change, if an issue, be "noded" out somehow?
I could probably test it and watch the debug to see what happens but I havent built the relay circuit yet to test, and I am trying to work out the pitfalls in the programming stage.