int LDR=A0;
int LED=2;


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


}

void loop() {
  // put your main code here, to run repeatedly:i
int nilai_LDR=analogRead(LDR);
if(nilai_LDR>200)
digitalWrite(LED,HIGH);
Serial.println(nilai_LDR);
}
else {
digitalWrite(LED,LOW);

Serial.println(nilai_LDR);
}