/* Blink
Turns on an LED on for one second,
then off for one second, repeatedly.
This example code is in the public domain.
*/
#include "Arduino.h"
void setup();
void loop();
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
unsigned char led = 13;
// the setup routine runs once when you press reset:
void setup()
{
// initialize the digital pin as an output.
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop()
{
delayMicroseconds(10);
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(led, LOW);
// turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}