// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 1 as an output.
  pinMode(1, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  for (int i = 0; i < 5000; i++) 
  {
  digitalWrite(1, HIGH);   // turn the LED on (HIGH is the voltage level)
  delayMicroseconds(128);           // wait for a second
  digitalWrite(1, LOW);    // turn the LED off by making the voltage LOW
  delayMicroseconds(128);             // wait for a second
  }
  for (int i = 0; i < 5000; i++) 
  {
  digitalWrite(1, HIGH);   // turn the LED on (HIGH is the voltage level)
  delayMicroseconds(160);           // wait for a second
  digitalWrite(1, LOW);    // turn the LED off by making the voltage LOW
  delayMicroseconds(96);             // wait for a second
  }
  for (int i = 0; i < 5000; i++)  
  {
  digitalWrite(1, HIGH);   // turn the LED on (HIGH is the voltage level)
  delayMicroseconds(192);           // wait for a second
  digitalWrite(1, LOW);    // turn the LED off by making the voltage LOW
  delayMicroseconds(64);             // wait for a second
  }
  for (int i = 0; i < 5000; i++)  
  {
  digitalWrite(1, HIGH);   // turn the LED on (HIGH is the voltage level)
  delayMicroseconds(224);           // wait for a second
  digitalWrite(1, LOW);    // turn the LED off by making the voltage LOW
  delayMicroseconds(32);             // wait for a second
  }
  for (int i = 0; i < 5000; i++)  
  {
  digitalWrite(1, HIGH);   // turn the LED on (HIGH is the voltage level)
  delayMicroseconds(255);           // wait for a second
  digitalWrite(1, LOW);    // turn the LED off by making the voltage LOW
  delayMicroseconds(0);             // wait for a second
  }
}