// Define the pins for the potentiometer and speaker
int potPin = A0;
int speakerPin = 9;

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

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

  // Map the potentiometer value (0-1023) to a range of speaker volumes (0-255)
  int volume = map(potValue, 0, 1023, 0, 255);

  // Set the speaker volume to the mapped value
  analogWrite(speakerPin, volume);

  // Add a delay to prevent rapid volume changes
  delay(10);
}