I am a high school student trying to set up some switches to work with the arduino. Unfortunately they refused to cooperate, so we set it up to graph two analog inputs. It seems that when one switch is on, the other inputs all get 50% more voltage, for instance if one and two are plugged in and three is turned on, one and two register 2.5 volts, and if 4 is turned on too it registers 3.75 volts. Below is the diagram of the circuit.
Red is the number of the switch and blue is the input.
I don’t think I soldered it up wrong, but I can’t figure out why it won’t work.