const int photoResistorPin = A0;
const int ledPin = 9;

void setup() {
  Serial.begin(9600); 
  pinMode(ledPin, OUTPUT); 
}

void loop() {
  int photoResistorValue = analogRead(photoResistorPin); 
  int brightness = map(photoResistorValue, 0, 1023, 255, 0);

  analogWrite(ledPin, brightness); 
  
  Serial.print("Photoresistor Value: ");
  Serial.print(photoResistorValue);
  Serial.print(", Brightness: ");
  Serial.println(brightness);  

  delay(1000); 
}