Hi guys, sorry for the noob question, I have already been ridiculed once for asking elsewhere so thought id try my luck somewhere new... I just am having trouble wrapping my head around how to transfer this into actual application. I am wanting to make a board to go inbetween the photo interruptor and the control board. The schematic on the left is what I have found but I dont understand exactly how to run the wires... What I have drawn is only what I am picturing in my head that would work well to make out of a perf-board. I basically just need someone to draw in the lines for me of how to run each wire. Also, it is mentioned int the comments of this blog that explained it, that the "pull UP" resistor is not necessary being that there is one already integrated into the control board. I already know how to activate that pullup resistor which is 4.7k but I am not sure which one out of the 3 resistors is the pull up resistor here on this schematic... My guess would be the 100k?. Here is a link also to the url where I got the info from originally. Thanks for anyone to help me.