/* BLINKING LEDs */

#define RED_LED_PIN 2
#define GRN_LED_PIN 8
#define BLU_LED_PIN 13
#define DELAY 250

int i=0;    //Variabile contatore

void setup() {
	pinMode(RED_LED_PIN, OUTPUT);
	pinMode(GRN_LED_PIN, OUTPUT);
	pinMode(BLU_LED_PIN, OUTPUT);
}

void loop() {
	if (i<5) {
		digitalWrite(RED_LED_PIN, HIGH);
		delay(DELAY);
		digitalWrite(RED_LED_PIN, LOW);
		delay(DELAY);
		i++;
	}
	
	else if (i>=5 && i<15) {
		digitalWrite(GRN_LED_PIN, HIGH);
		delay(DELAY);
		digitalWrite(GRN_LED_PIN, LOW);
		delay(DELAY);
		i++;
	}
	
	else if (i>=15 && i<30) {
		digitalWrite(BLU_LED_PIN, HIGH);
		delay(DELAY);
		digitalWrite(BLU_LED_PIN, LOW);
		delay(DELAY);
		i++;
	}
	
	else
		i=0;
}