Arduino Blinking LED Code

blinkingLED.ino

// Example 01 : Blinking LED

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

void setup ()

{

  pinMode(LED, OUTPUT);   //sets the digital pin as output

}

void loop()

{

  digitalWrite(LED, HIGH);  //turns the LED on

  delay (1000);            //waits for a second

  digitalWrite (LED, LOW);  //turns the LED off

  delay(3000);            //changed this to 3 secs rather than 1 :)

}