It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which, of course, brings taunts of: you could have used a 555! You can, of course, also use any sort of oscillato… ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

Next is the Hookup diagram of the Arduino 4-Digit 7-segment LED Display, followed by the Arduino sketch. Carefully follow the hookup diagram to complete your hardware,and then upload the sketch to ...