Im starting to get into Arduino a little. Ive got a Small project to start me off, To keep it simple its: 5 level Switches, 1 flow switch and 3 solenoid valves.
This question is for the Level Switches.
Now Im wanting to save Pins as I'm using a Arduino UNO. So would I be right to use the method ive seen around here a few times of Making a Resistance ladder.
Question is. 1- Will the method of using the same value of resistors (2k2) work? I dont think so..
As multiple "buttons" ie the flot switches will be pressed at once it will end up having no idea whats happening correct?, I need to be able to Identify each one (0%,25% etc etc)
If I was to use different vales of resistance would that make a difference ?