/* LED Binary Counter - 4-bit*/



/*============================== CONFIGURAZIONI ==============================*/
// PINs
#define BIT_0_PIN 2
#define BIT_1_PIN 4
#define BIT_2_PIN 6
#define BIT_3_PIN 8

// DELAY
#define DELAY 1500
/*============================================================================*/



/*============================ VARIABILI GLOBALI =============================*/
int nibble[4] = {BIT_0_PIN, BIT_1_PIN, BIT_2_PIN, BIT_3_PIN};

// Counter
int i;
/*============================================================================*/



/*=========================== FUNZIONI PRINCIPALI ============================*/
void setup() {
	for(i=0; i<4; i++) {
	pinMode(nibble[i], OUTPUT);
	}
}


void loop() {
	binary0();
	binary1();
	binary2();
	binary3();
	binary4();
	binary5();
	binary6();
	binary7();
	binary8();
	binary9();
	binaryA();
	binaryB();
	binaryC();
	binaryD();
	binaryE();
	binaryF();
}
/*============================================================================*/



/*============================== ALTRE FUNZIONI ==============================*/
void binary0() {
	// 0000 (0x0)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary1() {
	// 0001 (0x1)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary2() {
	// 0010 (0x2)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary3() {
	// 0011 (0x3)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary4() {
	// 0100 (0x4)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary5() {
	// 0101 (0x5)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary6() {
	// 0110 (0x6)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary7() {
	// 0111 (0x7)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, LOW);
	delay(DELAY);
}

void binary8() {
	// 1000 (0x8)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}

void binary9() {
	// 1001 (0x9)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}

void binaryA() {
	// 1010 (0xA)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}

void binaryB() {
	// 1011 (0xB)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, LOW);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}

void binaryC() {
	// 1100 (0xC)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}

void binaryD() {
	// 1101 (0xD)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, LOW);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}

void binaryE() {
	// 1110 (0xE)
	digitalWrite(BIT_0_PIN, LOW);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}

void binaryF() {
	// 1111 (0xF)
	digitalWrite(BIT_0_PIN, HIGH);
	digitalWrite(BIT_1_PIN, HIGH);
	digitalWrite(BIT_2_PIN, HIGH);
	digitalWrite(BIT_3_PIN, HIGH);
	delay(DELAY);
}
/*============================================================================*/