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 code uses drives a 4 digit alphanumeric LED display: LINK using a shift register: [LINK] (https://www.sparkfun.com/products/733)... Please see the file schematic ...

Connect pins A-G, and decimal pin directly to Arduino pins as specified in numbers.h, connect a current limiting resistor between pins D1 - D4 and the Arduino pins. According to the datasheet, the ...