// constants won't change. Used here to
// set pin numbers:
-const int ledPin = 13; // the number of the LED pin
+const int ledPin = 13;
// Variables will change:
int ledState = LOW; // ledState used to set the LED
// the follow variables is a long because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
-long interval = 1000; // interval at which to blink (milliseconds)
+const long interval = 1000; // interval at which to blink (milliseconds)
void setup() {
// set the digital pin as output:
// blink the LED.
if(millis() - previousMillis > interval) {
- // save the last time you blinked the LED
+ // Aggiorniamo il contatore previousMillis
previousMillis = millis();
// if the LED is off turn it on and vice-versa:
ledState = HIGH;
else
ledState = LOW;
- // e' possibile semplificare queta operazione?
+ // e' possibile semplificare questa operazione?
// Hint: lo stato del LED e' binario: ha solo due stati possibili.
// set the LED with the ledState of the variable: