int vol0, vol1, vol2, vol3, vol4;

int changeRange = 20;

int red = 9;
int green = 10;
int blue = 11;


// The setup() function runs once each time the micro-controller starts
void setup()
{

	pinMode(A0, INPUT);
	pinMode(A1, INPUT);
	pinMode(A2, INPUT);
	pinMode(A3, INPUT);
	pinMode(A4, INPUT);


	pinMode(9, OUTPUT);
	pinMode(10, OUTPUT);
	pinMode(11, OUTPUT);


	Serial.begin(4800);

	while (!Serial);
	Serial.println();
	Serial.println("OK");
	Serial.flush();


	vol0 = analogRead(A0);
	vol1 = analogRead(A1);
	vol2 = analogRead(A2);
	vol3 = analogRead(A3);
	vol4 = analogRead(A4);

	analogWrite(red, 180);
	analogWrite(green, 0);
	analogWrite(blue, 200);

}

// Add the main program code into the continuous loop() function
void loop()
{
	delay(400);

	int pot0 = analogRead(A0);
	int pot1 = analogRead(A1);
	int pot2 = analogRead(A2);
	int pot3 = analogRead(A3);
	int pot4 = analogRead(A4);

	if (shouldChangeVolume(vol0, pot0))
	{
		Serial.print("NUOVO VALORE 0: ");
		Serial.println(pot0);
		vol0 = pot0;
	}

	if (shouldChangeVolume(vol1, pot1))
	{
		Serial.print("NUOVO VALORE 1: ");
		Serial.println(pot1);
		vol1 = pot1;
	}
	if (shouldChangeVolume(vol2, pot2))
	{
		Serial.print("NUOVO VALORE 2: ");
		Serial.println(pot2);
		vol2 = pot2;
	}
	if (shouldChangeVolume(vol3, pot3))
	{
		Serial.print("NUOVO VALORE 3: ");
		Serial.println(pot3);
		vol3 = pot3;
	}
	if (shouldChangeVolume(vol4, pot4))
	{
		Serial.print("NUOVO VALORE 4: ");
		Serial.println(pot4);
		vol4 = pot4;
	}

}

boolean shouldChangeVolume(int oldValue, int newValue)
{

	int diff = oldValue - newValue;

	if (diff < -changeRange || diff > changeRange) return true;
	return false;
}