// ////////////
// Commento iniziale
/*
  Blink v1

  Accensione e spegnimanto di un LED utilizzando variabili
  per impostare la velocita' del lampeggio.
  
  Turns on an LED on for one second, then off for one second, repeatedly.
 
  This example code is in the public domain.
 */
 
// //////////////
// Dichiarazione variabili

// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 12;
int breve = 200;  // Variabile richiambile nel corso dell'esecuzione
int lunga = 1000;

// /////////////////
// Setup: eseguita una volta sola
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);     
}

// ///////////////
// loop
// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(breve);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(breve);               // wait for a second

  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(lunga);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(lunga); 
}