7 Segment Display On Arduino - Instructables

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Introduction: 7 Segment Display on Arduino

This instructable shows how to display 0-9 digits on 7 Segment Display using Arduino.

What do you need:

  • Arduino Uno 3
  • 7 Seven Segment Display
  • 2 x 220 Ohm Resistors
  • Jumper Wires

Step 1: Making Connections

Connect the pins described below:

  1. Arduino Pin 2 to Pin 9.
  2. Arduino Pin 3 to Pin 10.

  3. Arduino Pin 4 to Pin 4.

  4. Arduino Pin 5 to Pin 2..

  5. Arduino Pin 6 to Pin 1.

  6. Arduino Pin 8 to Pin 7.

  7. Arduino Pin 9 to Pin 6.

  8. GND to Pin 3 and Pin 8 each connected with 220 ohm resistors.

Attachments

  • download {{ file.name }}7 Segment Frizting Sketch.fzzDownload

Step 2: Arduino Code

int a = 2; //For displaying segment "a"int b = 3; //For displaying segment "b" int c = 4; //For displaying segment "c" int d = 5; //For displaying segment "d" int e = 6; //For displaying segment "e" int f = 8; //For displaying segment "f" int g = 9; //For displaying segment "g"void setup() { pinMode(a, OUTPUT); //A pinMode(b, OUTPUT); //B pinMode(c, OUTPUT); //C pinMode(d, OUTPUT); //D pinMode(e, OUTPUT); //E pinMode(f, OUTPUT); //F pinMode(g, OUTPUT); //G }void displayDigit(int digit) { //Conditions for displaying segment a if(digit!=1 && digit != 4) digitalWrite(a,HIGH); //Conditions for displaying segment b if(digit != 5 && digit != 6) digitalWrite(b,HIGH); //Conditions for displaying segment c if(digit !=2) digitalWrite(c,HIGH); //Conditions for displaying segment d if(digit != 1 && digit !=4 && digit !=7) digitalWrite(d,HIGH); //Conditions for displaying segment e if(digit == 2 || digit ==6 || digit == 8 || digit==0) digitalWrite(e,HIGH); //Conditions for displaying segment f if(digit != 1 && digit !=2 && digit!=3 && digit !=7) digitalWrite(f,HIGH); if (digit!=0 && digit!=1 && digit !=7) digitalWrite(g,HIGH); } void turnOff() { digitalWrite(a,LOW); digitalWrite(b,LOW); digitalWrite(c,LOW); digitalWrite(d,LOW); digitalWrite(e,LOW); digitalWrite(f,LOW); digitalWrite(g,LOW); } void loop() { for(int i=0;i<10;i++) { displayDigit(i); delay(1000); turnOff(); } }Hide

Tag » Arduino 7 Segment Display Pin