// Blinking LED
// by BARRAGAN <http://barraganstudio.com>

// turns on and off light (LED) connected to a digital pin, with 
// intervals of 1 second (1000 milliseconds)
// Note in the circuit the LED it has a positive (long leg) and a ground
// (short leg), if the LED doesn't turn ON, it might be it is inverted.

// Created 2 December 2003
// Revised 1 May 2007

int ledPin = 0;           // LED connected to the Wiring I/O board pin 0 

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

void loop()
{
  digitalWrite(ledPin, HIGH);   // sets the LED on
  delay(1000);                  // waits for a second
  digitalWrite(ledPin, LOW);    // sets the LED off
  delay(1000);
}
