#include <Arduino.h>  // Explicitly include the standard Arduino library

// Define pins
static const int POT_PIN = A0;   // Analog pin A0 for the potentiometer
static const int LED_PIN = 13;   // Digital pin 13 (supports PWM) for LED control

void setup(void) 
{
    pinMode(LED_PIN, OUTPUT);    // Set LED pin as an output
    Serial.begin(9600);          // Initialize serial communication at 9600 baud
}

void loop(void) 
{
    int potValue = analogRead(POT_PIN);  // Read the potentiometer value (0-1023)
    int ledBrightness = map(potValue, 0, 1023, 0, 255);  // Scale value to 0-255 (PWM range)
    
    analogWrite(LED_PIN, ledBrightness);  // Set LED brightness using PWM
    
    Serial.print("Potentiometer Value: "); // Print label to Serial Monitor
    Serial.print(potValue);                // Print raw potentiometer value
    Serial.print(" | LED Brightness: ");   // Print separator
    Serial.println(ledBrightness);         // Print mapped LED brightness value
    
    delay(100);  // Short delay (100ms) to stabilize readings
}