const int potPin = A0; 
const int ledPin = 9;  

int potValue = 0;      
int ledValue = 0;      

void setup() {
  Serial.begin(9600);
  
  pinMode(ledPin, OUTPUT);
}

void loop() {
  potValue = analogRead(potPin);

  ledValue = map(potValue, 0, 1023, 0, 255);

  analogWrite(ledPin, ledValue);

  Serial.print("Potentiometer Value: ");
  Serial.print(potValue);
  Serial.print(" | LED Brightness: ");
  Serial.println(ledValue);

  delay(100);
}