// Pin assignments
const int ledPin = 9;    // PWM pin connected to LED
const int potPin = A0;   // Analog pin connected to potentiometer

void setup() {
  // Set the LED pin as an output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Read the value from the potentiometer (0 to 1023)
  int potValue = analogRead(potPin);
  
  // Map the potentiometer value to a PWM range (0 to 255)
  int ledBrightness = map(potValue, 0, 1023, 0, 255);

  // Set the brightness of the LED
  analogWrite(ledPin, ledBrightness);
  
  // Small delay for stability
  delay(10);
}