Hey everyone, I'm looking to make a digital voltmeter to read up to 24v (though for this use 12-16v is nominal), with a switch. I'd also like to add a temperature sensor to read the voltage temperature (infrared, maybe?) if possible, but I'm not sure if this seems feasible or not.
I have an Arduino Uno, an oled screen (tested with a couple different libraries), a pir sensor, and a couple voltage divider circuits (with up to 8 inputs). I still need to get a switch, but wanted to go about sketching out the details more first.
Id imagine I'd essentially just do an analogRead from a pin and use functions to calculate the value from it, but im not sure how to use voltage divider a and would like to know if I may be overlooking anything else in the planning process. Thanks!