int led_pin = 5;
int pir_pin = 3;
int pir_value;
int ldr_pinA = A0;
int ldr_valueA;
int ldr_pinD = 4;
int ldr_valueD;



void setup() {
  pinMode(pir_pin, INPUT);
  pinMode(ldr_pinA, INPUT);
  pinMode(led_pin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  pir_value = digitalRead(pir_pin);
  Serial.println(pir_value);
  ldr_valueA = analogRead(ldr_pinA);
  Serial.println(ldr_valueA);


  int   ldrStatus = analogRead(led_pin);
  Serial.println(ldrStatus);
  if (ldrStatus <=500) {
  digitalWrite(led_pin, HIGH);               
  }else {
  digitalWrite(led_pin, LOW);          
  }
}