#include <DHT.h>

#define PIR_PIN 2
#define LDR_PIN A0
#define RELAY_PIN 8
#define DHT_PIN 4
#define DHT_TYPE DHT11


DHT dht(DHT_PIN, DHT_TYPE);

void setup() {
  Serial.begin(9600);
  pinMode(PIR_PIN, INPUT);
  pinMode(RELAY_PIN, OUTPUT);
  dht.begin();
}

void loop() {
  int ldrValue = analogRead(LDR_PIN);
  bool motionDetected = digitalRead(PIR_PIN);

  if (motionDetected && ldrValue < 500) {
    digitalWrite(RELAY_PIN, HIGH); // Turn on the light
  } else {
    digitalWrite(RELAY_PIN, LOW);  // Turn off the light
  }

  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" °C, Humidity: ");
  Serial.print(humidity);
  Serial.print(" %, LDR: ");
  Serial.println(ldrValue);

  delay(1000);
}