Blinking_LED

// Blinking LED
const int LED = 13; // LED connected to
// tutorial 1
// 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(1000); // waits for a second
}