How to use 7 segment display with Arduino? – Easy guide to connect read data on seven segment display with Arduino

In this post, you’ll see how it’s so easy to drive a seven segment display with an Arduino board.

The seven segment display is simply a group of seven LEDs connected together and placed inside a nice enclosure to give the shape of a number when those LEDs are illuminated with a certain combination.

Components you need

7 segment display

Arduino UNO or Arduino Mega or Arduino Micro

Some wires

Circuit

Code

void setup()

{

// define pin modes

 pinMode(2,OUTPUT);

 pinMode(3,OUTPUT);

 pinMode(4,OUTPUT);

 pinMode(5,OUTPUT);

 pinMode(6,OUTPUT);

 pinMode(7,OUTPUT);

 pinMode(8,OUTPUT);

 }

void loop() 

{

// loop to turn leds od seven seg ON

for(int i=2;i<9;i++)

  {

    digitalWrite(i,HIGH);

    delay(600);

  }

// loop to turn leds od seven seg OFF

for(int i=2;i<9;i++)

  {

    digitalWrite(i,LOW);

    delay(600);

  } 

  delay(1000);

}

This shows how it’s so easy to interface a seven segment display to the Arduino board.

Source:

https://www.allaboutcircuits.com/projects/interface-a-seven-segment-display-to-an-arduino/