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() {
  // put your setup code here, to run once:
  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,1);
 
 //Conditions for displaying segment b
 if(digit != 5 && digit != 6)
 digitalWrite(b,1);
 
 //Conditions for displaying segment c
 if(digit !=2)
 digitalWrite(c,1);
 
 //Conditions for displaying segment d
 if(digit != 1 && digit !=4 && digit !=7)
 digitalWrite(d,1);
 
 //Conditions for displaying segment e 
 if(digit == 2 || digit ==6 || digit == 8 || digit==0)
 digitalWrite(e,1);
 
 //Conditions for displaying segment f
 if(digit != 1 && digit !=2 && digit!=3 && digit !=7)
 digitalWrite(f,1);
 if (digit!=0 && digit!=1 && digit !=7)
 digitalWrite(g,1);
 
}

void turnOn()
{
  digitalWrite(a,0);
  digitalWrite(b,0);
  digitalWrite(c,0);
  digitalWrite(d,0);
  digitalWrite(e,0);
  digitalWrite(f,0);
  digitalWrite(g,0);
}



void displayN(int num)
{
  // Convierte unidades y decenas
  int und = num % 10;
  int dec = (num % 100) / 10;
  // Refresco dinamico
  for(int i=0; i<100; i++)
  {
    digitalWrite [1, und, 1];
    digitalWrite [0, dec, 1];
    delay(2); 
  }
  
  Serial.print(dec);
  Serial.println(und);
}
void loop() {
  // put your main code here, to run repeatedly:
  for(int i=0;i<10;i++)
  //for(int i=9;i>10;i--)
 {
   displayDigit(i);
   delay(1000);
   turnOn();
   
 }

 //*for(int i=9;i>10;i--){
  // displayDigit(i);
  // delay(1000);
  // turnOn();
 //}
 
}