int led_pin = 6;
int pir_pin = 3;
int ldr_pin = 4;
int rly_pin = 2;

int pir_val, ldr_val;

int photo_pin = A0;


int int_data;
void setup() {
  pinMode(led_pin, OUTPUT);
  pinMode(pir_pin, INPUT);
  pinMode(ldr_pin, INPUT);
  pinMode(rly_pin, OUTPUT);
  
  Serial.begin(9600);

}

void loop() {
  

  ldr_val = analogRead(photo_pin);
  pir_val = digitalRead(pir_pin);
 
 if (Serial.available())
 {
  int_data = Serial.parseInt();
  Serial.parseInt();

 }
  Serial.println(ldr_val);

  if(ldr_val > int_data && pir_val == 1)
  {
    digitalWrite(led_pin, HIGH);
  } 
  else
  {
    digitalWrite(led_pin, LOW);
  }

}