Here is the first stage of what i'm trying to do
I already have a pre-made controller that has an output of positive 12v which i'm trying to connect to a relay board. The problem that i'm having is that the relay board requires a connection to ground to switch the relay instead of the positive 12v that my pre-made controller is outputting
does anyone know how i can reverse this on the relay board so that when i put +12v onto the input of the relay board it will switch instead on 0v
if you know of a way to do this via the arduino or directly to the board id be glad to hear it. I can try and provide more information if its confusing.