Using an arudino nano as the micro controller, I would like to read a few voltages around my project board.
These values are being read by way of a simple voltage divider circuit for values up to 25v, using 30KΩ and 7.5KΩ resistors on each point I want to read.
My micro-controller only has 1 analogue port free but has many digital ports free. I was wondering what IC would I use to make the voltage to read from any specific sensor selectable via a digital pin and software?
I am very new to this work, so your kindness and patience is greatly appreciated :)