int difference;
int test1;
void setup()
{
  // Init USB
  USB.begin();
}

void loop()
{
  // Getting Value from Analog Input
  test1 =(analogRead(ANALOG5));
  USB.print("Brightness: ");
  USB.println(analogRead(ANALOG5), DEC);
  if(test1 == 1024)
  {
    USB.print("Brightness:100");
  }
  else if(1024>test1&&test1 >=918)
  {
    USB.print("Brightness:90");
    //difference = 918;
    difference = test1 -918;
    ones();
  }
  else if(918>test1&&test1 >=819)
  {
    USB.print("Brightness:80");
    difference = test1 -819;
    ones();
  }
  else if(819>test1&&test1 >=714)
  {
    USB.print("Brightness:70");
    difference = test1 -714;
    ones(); 
  }
  else if(714>test1&&test1 >=612)
  {
    USB.print("Brightness:60");
    difference = test1 -612;
    ones();

  }
  else if(612>test1&&test1 >=512)
  {
    USB.print("Brightness:50");
    difference = test1 -512;
    ones();

  }
  else if(512>test1&&test1 >=409)
  {
    USB.print("Brightness:40");
    difference = test1 -409;
    ones();

  }
  else if(409>test1&&test1 >=306)
  {
    USB.print("Brightness:30");
    difference = test1 -306;
    ones();

  }
  else if(306>test1&&test1 >=204)
  {
    USB.print("Brightness:20");
    difference = test1 -204;
    ones();

  }
  else if(204>test1&&test1 >=102)
  {
    USB.print("Brightness:10");
    difference = test1 - 102;
    ones();
  }
  else if(test1 <102)
  {
    USB.print("Brightness:0");
    difference = test1;
    ones();
  }
}
void ones()
{
  if(difference >= 91)
  {
    USB.print("D:9");
  }
  else if(91>difference&&difference >= 81)
  {
    USB.print("D:8");
  }
   else if(81>difference&&difference >= 71)
  {
    USB.print("D:7");
  }
   else if(71>difference&&difference >= 61)
  {
    USB.print("D:6");
  }
   else if(61>difference&&difference >= 51)
  {
    USB.print("D:5");
  }
   else if(51>difference&&difference >= 40)
  {
    USB.print("D:4");
  }
   else if(40>difference&&difference >= 30)
  {
    USB.print("D:3");
  }
   else if(30>difference&&difference >= 20)
  {
    USB.print("D:2");
  }
   else if(20>difference&&difference >= 10)
  {
    USB.print("D:1");
  }
   else if(difference <10)
  {
    USB.print("D:0");
  }
}