int ldr_sensor = 35;
int led = 2;

void setup() {
  Serial.begin(9600);
  analogSetAttenuation(ADC_11db);
  pinMode(led, OUTPUT);
}

void loop() {
int ldrvalue analogRead(ldr_sensor);

  Serial.print ("Ldr Value");
  Serial.print (ldrvalue);

 if (ldrvalue < 40) (
 Serial.println("=> Very Bright");
 digitalWrite(led, LOW);
} else if (ldrvalue < 800) (
Serial.println(" => Bright");
digitalWrite(led, LOW);
 } else if (Idrvalue < 2000) {

Serial.println(" => Light");
digitalWrite(led, LOW);
 } else if (ldrvalue < 3200) [
Serial.println(" => Dim");
digitalWrite(led, HIGH);
} else {
 Serial.println(" => Dark");
digitalWrite(led, HIGH);
}
  delay (1000);
  }