009: Occult Sketch

Occulting is the opposite of flashing, where the light is on for longer than it is off. I learned that in a course on boatcraft. I increased the shorter interval to 100ms to make it doubly different:

/*
  Occult

  Turns on an LED on for one second, then off for one decisecond, repeatedly.

  The circuit:
  * LED connected from digital pin 13 to ground.

  * Note: On most Arduino boards, there is already an LED on the board connected to pin 13, so you don't need any extra components for this example.


  Created 5th March 2010
  By Mike Goodwin

*/

int ledPin = 13; // LED connected to digital pin 13

// The setup() method runs once, when the sketch starts

void setup(
{
  // initialize the digital pin as an output:
  pinMode(ledPin, OUTPUT);
}

// the loop() method runs over and over again,
// as long as the Arduino has power

void loop()
{
  digitalWrite(ledPin, HIGH); // set the LED on
  delay(1000); // wait for a second
  digitalWrite(ledPin, LOW); // set the LED off
  delay(100); // wait for a centisecond
}