#define button 2

int seg_a = 12; // declare the variables
int seg_b = 11;
int seg_c = 10;
int seg_d = 9;
int seg_e = 8;
int seg_f = 7;
int seg_g = 6;
void setup() 
{
  pinMode(seg_a,OUTPUT); // configure all pins used to outputs
  pinMode(seg_b,OUTPUT);
  pinMode(seg_c,OUTPUT);
  pinMode(seg_d,OUTPUT);
  pinMode(seg_e,OUTPUT);
  pinMode(seg_f,OUTPUT);
  pinMode(seg_g,OUTPUT);

  pinMode(button, INPUT_PULLUP);
}
int i = 0;
void loop() 
{
  print_sev_seg(i);
  delay(200);// debouncing delay
  if(digitalRead(button)==0)
  {
    i++;
  }
  
  if(i>9)
  {
    i = 0;
  }
   
}


void print_sev_seg(int data)
{
  if (data == 0)
  {
      digitalWrite(seg_a,HIGH);  //0
      digitalWrite(seg_b,HIGH);
      digitalWrite(seg_c,HIGH);
      digitalWrite(seg_d,HIGH);
      digitalWrite(seg_e,HIGH);
      digitalWrite(seg_f,HIGH);
      digitalWrite(seg_g,LOW);
  }
  else if (data == 1)
  {
    digitalWrite(seg_a,LOW);  //1
    digitalWrite(seg_b,HIGH);
    digitalWrite(seg_c,HIGH);
    digitalWrite(seg_d,LOW);
    digitalWrite(seg_e,LOW);
    digitalWrite(seg_f,LOW);
    digitalWrite(seg_g,LOW);
  }
  else if (data == 2)
  {
    digitalWrite(seg_a,HIGH);  //2
    digitalWrite(seg_b,HIGH);
    digitalWrite(seg_c,LOW);
    digitalWrite(seg_d,HIGH);
    digitalWrite(seg_e,HIGH);
    digitalWrite(seg_f,LOW);
    digitalWrite(seg_g,HIGH);
  }
  else if (data == 3)
  {
    digitalWrite(seg_a,HIGH);  //3
    digitalWrite(seg_b,HIGH);
    digitalWrite(seg_c,HIGH);
    digitalWrite(seg_d,HIGH);
    digitalWrite(seg_e,LOW);
    digitalWrite(seg_f,LOW);
    digitalWrite(seg_g,HIGH);
  }
  else if (data == 4)
  {
    digitalWrite(seg_a,LOW);  //4
    digitalWrite(seg_b,HIGH);
    digitalWrite(seg_c,HIGH);
    digitalWrite(seg_d,LOW);
    digitalWrite(seg_e,LOW);
    digitalWrite(seg_f,HIGH);
    digitalWrite(seg_g,HIGH);
  }
  else if (data == 5)
  {
    digitalWrite(seg_a,HIGH);  //5
    digitalWrite(seg_b,LOW);
    digitalWrite(seg_c,HIGH);
    digitalWrite(seg_d,HIGH);
    digitalWrite(seg_e,LOW);
    digitalWrite(seg_f,HIGH);
    digitalWrite(seg_g,HIGH);
  }
  else if (data == 6)
  {
    digitalWrite(seg_a,HIGH);  //6
  digitalWrite(seg_b,LOW);
  digitalWrite(seg_c,HIGH);
  digitalWrite(seg_d,HIGH);
  digitalWrite(seg_e,HIGH);
  digitalWrite(seg_f,HIGH);
  digitalWrite(seg_g,HIGH);
  }
  else if (data == 7)
  {
    digitalWrite(seg_a,HIGH);  //7
  digitalWrite(seg_b,HIGH);
  digitalWrite(seg_c,HIGH);
  digitalWrite(seg_d,LOW);
  digitalWrite(seg_e,LOW);
  digitalWrite(seg_f,LOW);
  digitalWrite(seg_g,LOW);
  }
  else if (data == 8)
  {
    digitalWrite(seg_a,HIGH);  //8
  digitalWrite(seg_b,HIGH);
  digitalWrite(seg_c,HIGH);
  digitalWrite(seg_d,HIGH);
  digitalWrite(seg_e,HIGH);
  digitalWrite(seg_f,HIGH);
  digitalWrite(seg_g,HIGH);
  }
  else if (data == 9)
  {
  digitalWrite(seg_a,HIGH);  //9
  digitalWrite(seg_b,HIGH);
  digitalWrite(seg_c,HIGH);
  digitalWrite(seg_d,HIGH);
  digitalWrite(seg_e,LOW);
  digitalWrite(seg_f,HIGH);
  digitalWrite(seg_g,HIGH);
  }
  



}