int photoresistorPin = A0; 
int ledPin = 11;           
int val = analogRead(photoresistorPin);               
int ledBrightness = 0;     

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

void loop() {
  val = analogRead(photoresistorPin);
  
  ledBrightness = map(val, 710, 950, 0, 255);

   if (ledBrightness < 0) {
    ledBrightness = 0; 
  } else if (ledBrightness > 255) {
    ledBrightness = 255; 
  }
  
  Serial.print("Light Level: ");  
  Serial.print(val);             
  Serial.print(" | LED Brightness: "); 
  Serial.println(ledBrightness);   

  analogWrite(ledPin, ledBrightness);

  delay(100);
}