int ldr =A5;
int led =9;

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

serial.begein(900);
pinMode(led, OUTPUT);
void loop() {
  // put your main code here, to run repeatedly:
nilai =analogRead(ldr);
Serial.print("NIlai LDR : ");
serial.print(nilai);

if(nilai > 800)}
digitalWrite(led);