I am using an Arduino Uno R3 with a 12v power supply funning a 12v motor. I have eight switches that don’t do anything, they are just either off or on and I need to be able to tell which ones are on at any given moment. I have found numerous discussions about various configurations with one resistor, eight resistors or even a different value resistor for each switch. Cautions about where to but the resistors - power side, ground side, before the pin, after the pin in order to avoid noise. And to twist the wires to avoid noise. Since I am packing all this into an 8" box I suppose noise could be a concern. Being a novice all this research has been a bit confusing.
So, my question is, does this look like it will work? Can I get away with using this few pins? (I have other things to use pins for)
Thanks for any insight you can offer.