Advance Night Light

int prPin = 2;
int relayPin = 1;
int lightLevel;

void setup() {
  // put your setup code here, to run once:
pinMode(relayPin, OUTPUT);
Serial.begin(9600);

}

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

lightLevel = analogRead(prPin);
Serial.println(lightLevel);

if (lightLevel > 900)
{
  digitalWrite(relayPin, HIGH);
}

else
{
  digitalWrite(relayPin, LOW);
}
delay(2000);

}