// C++ code
//

const int LedPin=8; //the number of the LED pin on the Arduino Uno

int counter;
int times=0;

void setup()
{
  pinMode(LedPin, OUTPUT);
}

void loop()
{
  //the following is going to spell out HELLO in Morse Code
  //H= dot dot dot dot
  times=4;
  for (counter =0; counter < times; ++counter)
  {
  digitalWrite(LedPin, HIGH);
  delay(100); // Wait for 100 millisecond(s)
  digitalWrite(LedPin, LOW);
  delay(500); // Wait for 500 millisecond(s)
  }
  delay(1000); // Wait for 1000 millisecond(s) between letters
  
  //E = dot
    digitalWrite(LedPin, HIGH);
  delay(100); // Wait for 100 millisecond(s)
  digitalWrite(LedPin, LOW);
  delay(500); // Wait for 500 millisecond(s)

 delay(1000); // Wait for 1000 millisecond(s) between letters
  
  //L= dot dash dot dot TWICE for 2 L's
  
  times=2;
    for (counter=0; counter< times; ++counter)
  {
      digitalWrite(LedPin, HIGH);
  delay(100); // Wait for 100 millisecond(s)
  digitalWrite(LedPin, LOW);
  delay(500); // Wait for 500 millisecond(s)
      digitalWrite(LedPin, HIGH);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LedPin, LOW);
  delay(500); // Wait for 500 millisecond(s)
      digitalWrite(LedPin, HIGH);
  delay(100); // Wait for 100 millisecond(s)
  digitalWrite(LedPin, LOW);
  delay(500); // Wait for 500 millisecond(s)
      digitalWrite(LedPin, HIGH);
  delay(100); // Wait for 100 millisecond(s)
  digitalWrite(LedPin, LOW);
  delay(500); // Wait for 500 millisecond(s)
   
      delay(1000); // Wait for 1000 millisecond(s) between letters
    
  }
  // O=dash dash dash 
    times=3;
  for (counter =0; counter < times; ++counter)
  {
  digitalWrite(LedPin, HIGH);
  delay(500); // Wait for 500 millisecond(s)
  digitalWrite(LedPin, LOW);
  delay(500); // Wait for 500 millisecond(s)
  }
  delay(1000); // Wait for 1000 millisecond(s) between letters
}