7 Segment Displays

Background

1-Digit Seven Segment Display

4-Digit Seven Segment Display

Seven-segment LED displays are a simplistic way of displaying numerical information to a user. It is comprised of seven different LEDs (or segments) that are independently controlled just like a normal LED. It requires 8 digital output pins to individually drive each LED (7 segments and the decimal point). For a 4-digit seven-segment display, the control mechanisms are the same but it requires 8 outputs for each segment plus an additional 4 more outputs to select which of the 4 digits you want to control.

 

Hardware Description

1-Digit Seven Segment LED

 

7-Digit Seven Segment LED

 

Software Description

See resources below.

 

Resources

• Arduino SevSeg Reference: https://www.arduino.cc/reference/en/libraries/sevseg/
• SevSeg Library: https://github.com/DeanIsMe/SevSeg
• Seven Segment LED Tutorial: https://www.circuitbasics.com/arduino-7-segment-display-tutorial/