int potPin = A0;      // Analog pin for potentiometer
int ledPin = 9;       // PWM pin connected to the LED
int potValue = 0;     // Variable to store the potentiometer value
int ledBrightness = 0; // Variable to store LED brightness

void setup() {
  pinMode(ledPin, OUTPUT); // Set the LED pin as output
  Serial.begin(9600);      // Initialize serial communication for debugging
}

void loop() {
  potValue = analogRead(potPin);            // Read the potentiometer value (0-1023)
  ledBrightness = map(potValue, 0, 1023, 0, 255); // Map potentiometer value to PWM range (0-255)
  
  analogWrite(ledPin, ledBrightness);       // Set LED brightness using PWM
  
  delay(10);  // Small delay to avoid overwhelming the serial output
}