4 Accensione e spegnimanto di 2 LED.
5 Nel circuito oltre al LED montato direttamente sul pin 13
6 viene aggiunto un altro LED pilotato dal PIN 12.
8 Ricordarsi di usare una resistenza da ~320ohms per il secondo LED.
9 Resistenza = (Voltaggio_Arduino - Forward_voltage_LED) / (ampere utilizzati)
10 R = (5v-1.8v) / 0.010a
13 This example code is in the public domain.
16 // Pin 13 has an LED connected on most Arduino boards.
19 int red = 12; // Definiamo un altro led
21 // the setup routine runs once when you press reset:
23 // initialize the digital pin as an output.
24 pinMode(led, OUTPUT); // Abilitaiamo entrambi i LED
28 // the loop routine runs over and over again forever:
30 digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
31 delay(breve); // wait for a second
32 digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
33 delay(breve); // wait for a second
35 digitalWrite(red, HIGH); // turn the LED on (HIGH is the voltage level)
36 delay(lunga); // wait for a second
37 digitalWrite(red, LOW); // turn the LED off by making the voltage LOW