Photoresistors for Beginners

//---------------------------------------------
//       Photoresistors for beginners
//              learnelectronics
//               17 Feb 2019
//      www.youtube.com/c/learnelectronics
//            [email protected]
//---------------------------------------------


// Average light = 390
//dark = 905
//light = 90

void setup() {
  // put your setup code here, to run once:

  Serial.begin(9600);
  pinMode(3,OUTPUT);
  pinMode(A0,INPUT);

}

void loop() {
  // put your main code here, to run repeatedly:

  int lightRead = (analogRead(A0));
  int ledOutput = map(lightRead, 1, 1023, 0, 254);
  if (ledOutput < 95)
{
  ledOutput = 0;
}
  Serial.println(ledOutput);
  analogWrite(3,ledOutput);
  delay(50);

}