#include <Adafruit_Sensor.h>
#include <DHT.h>

#define DHT_PIN 3     // Pin connected to DHT22 data pin
#define PIR_PIN 2     // Pin connected to PIR sensor output
#define LED_PIN 4     // Pin connected to the LED
#define TEMPERATURE_THRESHOLD 25.0  // Set the temperature threshold in Celsius
#define HUMIDITY_THRESHOLD 50.0     // Set the humidity threshold as a percentage

DHT dht(DHT_PIN, DHT22);

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

void loop() {
  int pirState = digitalRead(PIR_PIN);
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  if (temperature >= TEMPERATURE_THRESHOLD || humidity >= HUMIDITY_THRESHOLD || pirState == HIGH) {
    Serial.println("Motion detected, temperature and humidity above thresholds!");
    digitalWrite(LED_PIN, HIGH); // Turn on the LED
  } 
  delay(1000);
}