7 Segment Dislpay Arduino Code



int val0 = 0;
int val1 = 0;
int val2 = 0;
int val3 = 0;


void setup()
{
  for (int i = 0; i > 4; i++)
  {
    pinMode(i, INPUT);
  }
 for (int i = 4; i < 11; i++)
  {
    pinMode(i, OUTPUT);
  }
}
  
  void loop ()
  {
    val0 = digitalRead (11);
    val1 = digitalRead (1);
    val2 = digitalRead (2);
    val3 = digitalRead (3);
    if (val0 == LOW)
    {
      if(val1 == LOW)
      {
        if (val2 == LOW)
        {
          if (val3 == LOW)
          {
            dis0();
          }
        }
      }
    }
    //code to show digit number 1      
    if(val3 == HIGH && val2 == LOW && val1 == LOW && val0 == LOW)
    { 
      dis1();
    } 
     //code to show digit number 2
    if(val3 == LOW && val2 == HIGH && val1 == LOW && val0 == LOW){ 
          dis2();
        }
    //code to show digit number 3
    if (val3 == HIGH && val2 == HIGH && val1 == LOW && val0 == LOW)
    {
        dis3();
    }
    //code to show digit number 4
    if (val3 == LOW && val2 == LOW && val1 == HIGH && val0 == LOW)
    {
        dis4();
    }
  
//code to show digit number 4
    if (val3 == HIGH && val2 == LOW && val1 == HIGH && val0 == LOW)
    {
        dis5();
    }
  
//code to show digit number 4
    if (val3 == LOW && val2 == HIGH && val1 == HIGH && val0 == LOW)
    {
        dis6();
    }
  
//code to show digit number 4
    if (val3 == HIGH && val2 == HIGH && val1 == HIGH && val0 == LOW)
    {
        dis7();
    }
  
//code to show digit number 8
    if (val3 == LOW && val2 == LOW && val1 == LOW && val0 == HIGH)
    {
        dis8();
    }
  
//code to show digit number 9
    if (val3 == HIGH && val2 == LOW && val1 == LOW && val0 == HIGH)
    {
        dis9();
    }
      
//code to show Error
    if (val3 == HIGH && val2 == HIGH && val1 == HIGH && val0 == HIGH)
    {
        disE();
    }
  

}
void blank()
{
for (int i = 4; i < 11; i++)
    {
      digitalWrite (i, LOW);
    }
}


//number combination acording to 7 segment display
void dis0(){
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(10, LOW);
}
void dis1(){
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(7, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
}
void dis2(){
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, LOW);
  digitalWrite(8, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(10, HIGH);
}
void dis3(){
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(10, HIGH);
}
void dis4(){
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, HIGH);
  digitalWrite(10,HIGH);
}
void dis5(){
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(10,HIGH);
  digitalWrite(9, HIGH);
}
void dis6(){
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(10, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  digitalWrite(9, HIGH);
}
void dis7(){
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  
  
}
void dis8(){
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(10, HIGH);

}
void dis9(){
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, HIGH);
  digitalWrite(10, HIGH);
}
void disE(){
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(10, HIGH);
}
  

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