ADWSystems
Member
I need to add a pushbutton to remote alarm box. The box currently has all outputs, but with luck there is one that is not used thus one conductor in the cable is available. With some clever use of wire cutters and a soldering iron I think I can use this conductor to connect to an available input. The catch is the box is powered by 12V and the controller inputs are 5V. I came up with solution which looks like it would work. I could attach the resistors right to the back of the switch. But being so simple, it seems too easy and therefore I must be overlooking something.
Would this work?
Would this work?