This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

In this lesson, we'll refresh our memories about potentiometers, learn a bit about multimeters, and then introduce the concept of analog input and hook-up potentiometers as voltage dividers to Arduino ...

There was an error while loading. Please reload this page. By the end of this lab, you should understand how to get data from any of the Arduino sensors and use the ...