Analog to digital conversion on the Arduino – Free preview!

In this lesson, we look at the super-simple to use and very powerful analog to digital converter on the Arduino.  NOTE: As was pointed out by some students, when connecting your potentiometer to the Arduino, it is very important that the middle wire of the potentiometer go to the analog input. Otherwise, you’re putting a variable resistor right across the power supply of the Arduino board and you’ll burn out your voltage regulator.