// by Nissanka MD Weerasinghe SLCOTM

void setup() {
 for(int i = 2; i<9;i++)
 {
  pinMode(i, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  //digitalWrite(i, HIGH);
  //delay(200);
 }

 //delay(1500);
/*
  for(int i = 2; i<9;i++)
 {

  digitalWrite(i, 0);
 }

*/


}

void loop() {


//for (int i = 0; i<10; i++) SSD(i,1000);
//SSD (23,2000);
SSD(3);

SSD1_ON();
delay(100);

SSD(5);
SSD2_ON();

delay(100);
/*


*/
}


void SSD( int number)
{
   clear();
  
  if((number >= 0) && (number <= 9))
  {
      if(number == 0) SSD0();
      if(number == 1) SSD1();
      if(number == 2) SSD2();
      if(number == 3) SSD3();
      if(number == 4) SSD4();
      if(number == 5) SSD5();
      if(number == 6) SSD6();
      if(number == 7) SSD7();
      if(number == 8) SSD8();
      if(number == 9) SSD9();

  }

  else SSDE();

  //SSD2_ON();
  //SSD1_OFF();


  //delay(delay_Val);
} /// end loop



void SSD1_ON()
{
  
  //digitalWrite(12, HIGH);
  digitalWrite(13, LOW);
}

void SSD1_OFF()
{
  digitalWrite(13, HIGH);
}


void SSD2_ON()
{
  //digitalWrite(13, HIGH);
  digitalWrite(12, LOW);
}

void SSD2_OFF()
{
  digitalWrite(12, HIGH);
}



void clear()
{
  SSD1_OFF();
  SSD2_OFF();
  
    //erase display (turn off All segments)
  for(int i = 2; i<9;i++) digitalWrite(i, 0);
  //delay(1000);
}

void All()
{
  for(int i = 2; i<9;i++)
 {

  digitalWrite(i, 1);
 }

}

void SSD0()   // Display 1
{

//clear();
All();
digitalWrite(8,0);

}


void SSD1()   // Display 1
{

//clear();


  digitalWrite(3,1);
  digitalWrite(4,1);

}

void SSD2()   // Display 2
{

//clear(); 
All();
digitalWrite(4,0);
digitalWrite(7,0);

}


void SSD3()
{

//clear(); 
All();
digitalWrite(6,0);
digitalWrite(7,0);

}

void SSD4()
{

//clear(); 
All();
digitalWrite(2,0);
digitalWrite(5,0);
digitalWrite(6,0);

}

void SSD5()
{

//clear(); 
All();
digitalWrite(3,0);
digitalWrite(6,0);

}

void SSD6()
{

//clear(); 
All();
digitalWrite(3,0);

}

void SSD7()
{

//clear(); 
digitalWrite(2,1);
digitalWrite(3,1);
digitalWrite(4,1);

}

void SSD8()
{

//clear(); 
All();

}

void SSD9()
{

//clear(); 
All();
digitalWrite(6,0);

}


void SSDE()   // Display 1
{

//clear();
All();
digitalWrite(3,0);
digitalWrite(4,0);

}