1 /* Blink without Delay - only led
3 Turns on and off a light emitting diode(LED) connected to a digital
4 pin, without using the delay() function. This means that other code
5 can run at the same time without being interrupted by the LED code.
7 Schema: https://lab.piffa.net/schemi/circuito_led_bb.png
9 http://www.arduino.cc/en/Tutorial/BlinkWithoutDelay
12 const int led = 13; // Primo LED
14 unsigned long previousMillis = 0; // Ultimo aggiornamento
15 unsigned long interval = 1000; // Pausa tra i lampeggi
23 if (millis() - previousMillis >= interval) {
24 previousMillis += interval ;
26 digitalWrite(led, !digitalRead(led));