Your MegaCore AVR Pinout image has the wrong port numbers for Arduino Pins 2-7. There are other errors I'm sure but I didn't do a complete scan. Arduino Pin 2 is Port E, pin 4. (PE4) Arduino Pin 3 is ...

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 ...

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 ...