Arduino 4 Digit 7 Segment Project || Arduino Easy Projects With Display

 

Hello readers, I've shared the code below. And kindly note, the file of the library SevSeg.h must be included in  the Arduino libraries folder. If it's not in there kindly download the library from official site and paste the folder after extracting. [ DOWNLOAD LINK] . For any kind of queries kindly leave a comment below.

circuit diagram

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#include <SevSeg.h>

int pinA = 2;int pinB = 3;int pinC = 4;int pinD = 5;
int pinE = 11;int pinF = 12;int pinG = 13;
int pinDP = 6;int D1 = 7;int D2 = 8;int D3 = 9; int D4 = 10;

void setup() {//set all segments & digits as outputs
pinMode(pinA, OUTPUT);
pinMode(pinB, OUTPUT);
pinMode(pinC, OUTPUT);
pinMode(pinD, OUTPUT);
pinMode(pinE, OUTPUT);
pinMode(pinF, OUTPUT);
pinMode(pinG, OUTPUT);
pinMode(D1, OUTPUT);
pinMode(D2, OUTPUT);
pinMode(D3, OUTPUT);
pinMode(D4, OUTPUT);
}

void loop() {
  
  digit1();zero();delay(500);
  digit2();one();delay(500);
  digit3();two();delay(500);
  digit4();three();delay(500);
  digit3();four();delay(500);
  digit2();five();delay(500);
  digit1();six();delay(500);
  digit2();seven();delay(500);
  digit3();eight();delay(500);
  digit4();nine();delay(500);
 
  all4Digits();
  allNumbers();

}


//functions representing numbers 0-9
void zero(){
digitalWrite(pinA, LOW);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, LOW);
digitalWrite(pinE, LOW);
digitalWrite(pinF, LOW);
digitalWrite(pinG, HIGH);
  }

  void one(){
digitalWrite(pinA, HIGH);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, HIGH);
digitalWrite(pinE, HIGH);
digitalWrite(pinF, HIGH);
digitalWrite(pinG, HIGH);
}

void two(){
  digitalWrite(pinA, LOW);
digitalWrite(pinB, LOW);
digitalWrite(pinC, HIGH);
digitalWrite(pinD, LOW);
digitalWrite(pinE, LOW);
digitalWrite(pinF, HIGH);
digitalWrite(pinG, LOW);
  }
  
  void three(){
    digitalWrite(pinA, LOW);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, LOW);
digitalWrite(pinE, HIGH);
digitalWrite(pinF, HIGH);
digitalWrite(pinG, LOW);
    }
    
  void four(){
    digitalWrite(pinA, HIGH);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, HIGH);
digitalWrite(pinE, HIGH);
digitalWrite(pinF, LOW);
digitalWrite(pinG, LOW);
    }
    
  void five(){
    digitalWrite(pinA, LOW);
digitalWrite(pinB, HIGH);
digitalWrite(pinC, LOW);
digitalWrite(pinD, LOW);
digitalWrite(pinE, HIGH);
digitalWrite(pinF, LOW);
digitalWrite(pinG, LOW);
    }
    
  void six(){
    digitalWrite(pinA, LOW);
digitalWrite(pinB, HIGH);
digitalWrite(pinC, LOW);
digitalWrite(pinD, LOW);
digitalWrite(pinE, LOW);
digitalWrite(pinF, LOW);
digitalWrite(pinG, LOW);
    }
    
  void seven(){
    digitalWrite(pinA, LOW);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, HIGH);
digitalWrite(pinE, HIGH);
digitalWrite(pinF, HIGH);
digitalWrite(pinG, HIGH);
    }
    
  void eight(){
    digitalWrite(pinA, LOW);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, LOW);
digitalWrite(pinE, LOW);
digitalWrite(pinF, LOW);
digitalWrite(pinG, LOW);
    }
    
  void nine(){
    digitalWrite(pinA, LOW);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, HIGH);
digitalWrite(pinE, HIGH);
digitalWrite(pinF, LOW);
digitalWrite(pinG, LOW);
    }

    void allNumbers(){
      one();delay(500);
two();delay(500);
three();delay(500);
four();delay(500);
five();delay(500);
six();delay(500);
seven();delay(500);
eight();delay(500);
nine();delay(500);
      }

  void turnOffAllSegments(){
          digitalWrite(pinA, LOW);
digitalWrite(pinB, LOW);
digitalWrite(pinC, LOW);
digitalWrite(pinD, LOW);
digitalWrite(pinE, LOW);
digitalWrite(pinF, LOW);
digitalWrite(pinG, LOW);
          }


    //functions to select individual digits on the display
    void digit1(){
      digitalWrite(D1, HIGH);
digitalWrite(D2, LOW);
digitalWrite(D3, LOW);
digitalWrite(D4, LOW);
      }
      
    void digit2(){
      digitalWrite(D1, LOW);
digitalWrite(D2, HIGH);
digitalWrite(D3, LOW);
digitalWrite(D4, LOW);
      }
      
    void digit3(){
      digitalWrite(D1, LOW);
digitalWrite(D2, LOW);
digitalWrite(D3, HIGH);
digitalWrite(D4, LOW);
      }
      
    void digit4(){
      digitalWrite(D1, LOW);
digitalWrite(D2, LOW);
digitalWrite(D3, LOW);
digitalWrite(D4, HIGH);
      }

      void all4Digits(){
        digitalWrite(D1, HIGH);
digitalWrite(D2, HIGH);
digitalWrite(D3, HIGH);
digitalWrite(D4, HIGH);
        }
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