*/
  Blink_2
  Turns one LED on for one second and the other for one second too,
  one in each time.

  This example code is in the public domain.
 */

void setup() {
  // initialize the digital pin as an output.
  // Pin 13 has an LED connected on most Arduino boards:
  pinMode(13, OUTPUT);
  // initialize the digital pin 12 as an output.
  pinMode(12, OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);   // set the LED at pin 13 on
  digitalWrite(12, LOW);    // set the LED at pin 12 off
  delay(1000);              // wait for a second
  digitalWrite(13, LOW);    // set the LED at pin 13 off
  digitalWrite(12, HIGH);   // set the LED at pin 13 on
  delay(1000);              // wait for a second
}