of the 4×7 LED display. Note that here the decimal point (dp) option is not used, but included in the sketch. D13 of the Arduino is reserved for the decimal point segment. The 10K potentiometer is ...

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 ...