-int led = 9;
-int brightness = 0; // this two could be bytes as well
-int fadeAmount = 5;
-// the pin that the LED is attached to
-// how bright the LED is
-// how many points to fade the LED by
-// the setup routine runs once when you press reset:
+const int led = 9; // LED con PWM
+byte brightness = 0; // Luminosita'
+int fadeAmount = 5; // Step di modifica luminosita'
+const int pause = 30; // Pausa tra incrementi
+