#define redPin 2
#define greenPin 3
#define bluePin 4

#define potPin A0 

void setup() {
  // put your setup code here, to run once:
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);

  pinMode(potPin, INPUT);

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  int redValue = map(analogRead(potPin), 0, 341, 0, 255);
  int greenValue = map(analogRead(potPin), 342, 683, 0, 255);
  int blueValue = map(analogRead(potPin), 684, 1023, 0, 255);

  int potValue = analogRead(potPin);

  if (potValue >= 0 && potValue <= 341) {
    analogWrite(redPin, redValue);
    analogWrite(greenPin, 255);
    analogWrite(bluePin, 255);
}
  else if (potValue >= 342 && potValue <= 683) {
    analogWrite(redPin, 255);
    analogWrite(greenPin, greenValue);
    analogWrite(bluePin, 255);
  }
  else if (potValue >= 684 && potValue <= 1023) {
    analogWrite(redPin, 255);
    analogWrite(greenPin, 255);
    analogWrite(bluePin, blueValue);
  }
  else {
    analogWrite(redPin, 255);
    analogWrite(greenPin, 255);
    analogWrite(bluePin, 255);
  }

  Serial.println(potValue);
}