A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable ...

Components Needed: Arduino board (Arduino Uno) Potentiometer LED Resistor (220 ohms to 1k ohm, for current limiting the LED) Breadboard wires 1-Connect the Potentiometer: -Connect one outer terminal ...

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 ...

Recently, we published an entry-level Arduino project with a single seven-segment LED display. Although it’s an amazing DIY project, we noted that most of the readers are looking for more advanced ...