// Define pins for potentiometer and LED bar
const int potPin = A0; // Potentiometer connected to analog pin A0
const int ledBarPin = 13; // LED bar connected to digital pin 13

// Define variables
int potValue = 0; // variable to store potentiometer value
int brightness = 0; // variable to store LED bar brightness

void setup() {
  // Set LED bar pin as output
  pinMode(ledBarPin, OUTPUT);

  // Begin serial communication for debugging
  Serial.begin(9600);
}

void loop() {
  // Read potentiometer value
  potValue = analogRead(potPin);

 

  // Map potentiometer value to LED bar brightness (0-255)
  brightness = map(potValue, 0, 1023, 0, 255);

  // Set LED bar brightness
  analogWrite(ledBarPin, brightness);

  // Debugging: print LED bar brightness
  Serial.print("LED Bar Brightness: ");
  Serial.println(brightness);

  // Delay for stability
  delay(100);
}