I would like to use the digital output to switch on my Air heater in the Camper Van remotely. The heating has a Output with 2 wires that once short-circuit it starts the heater.
I tried it directly on the OC output but it won't work. I checked both wires from the heating against the ground signal but they are not connecting to ground. That seems to be the reason why its not working.
I'm searching for a little relay that I can connect to the OC output and 12V to switch on the heater. It doesn't need to be strong, just for signals. Anybody has a idea ?