int brightnessA;
int potLedA = A5;
int potLedR = A4;
int ledA = 6;
int ledR = 5;
int valA;
int valR;
int brightnessR;
int prevBrightnessA = -1;
int prevBrightnessR = -1;

void setup() {
  Serial.begin(115200);

  pinMode(ledA, OUTPUT);
  pinMode(ledR, OUTPUT);
}

void loop() {
  valA = analogRead(potLedA);
  brightnessA = map(valA, 0, 1023, 0, 255);
  valR = analogRead(potLedR);
  brightnessR = map(valR, 0, 1023, 0, 255);

  if (brightnessA != prevBrightnessA) {
    analogWrite(ledA, brightnessA);
    Serial.println("Brightness of Blue LED changed to: ");
    Serial.println(brightnessA);
    Serial.println("\n");
    prevBrightnessA = brightnessA;
  }

  if (brightnessR != prevBrightnessR) {
    analogWrite(ledR, brightnessR);
    Serial.println("Brightness of Red LED changed to: ");
    Serial.println(brightnessR);
    Serial.println("\n");
    prevBrightnessR = brightnessR;
  }

  delay(500);
}