johnblaze Testing if the controller can get the signal is super easy. Just create a schedule that starts in a few minutes, and pull one of the wires out of the C or S terminal. If the schedule doesn't run and you get a notification saying it was skipped due to the rain sensor, your controller is getting the signal perfectly.
To see if the sensor itself is actually working, your best bet is to just drench the sensor with some water. Then do the same thing—set up a quick schedule and see if it gets skipped.
