#include <DHT.h>

#define DHTPIN 2     // Pin which is connected to the DHT sensor
#define DHTTYPE DHT22   // DHT 11
int motion=4;
int motionstate = LOW;
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  // Start serial communication
  Serial.begin(9600);
 // Initialize the DHT sensor
  dht.begin();
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(motion, INPUT);
}

void loop() {
  // Wait a few seconds between measurements
  delay(2000);

  // Read humidity and temperature
  float hum = dht.readHumidity();
  float temp = dht.readTemperature();

  // Check if any reads failed and exit early (to try again)
  if (isnan(hum) || isnan(temp)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Print the results to the Serial Monitor
  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(temp);
  Serial.println(" *C");
  //turns on the AC when temp is gretaer than 25
  if(temp>25){
    Serial.print("Temperature: ");
    Serial.print(temp);
    Serial.println("AC is turned ON");
    digitalWrite(11,1);}
  if(temp<15){
    Serial.print("Temperature: ");
    Serial.print(temp);
    Serial.println("AC is turned OFF");
    digitalWrite(11,0);
  }
  //turns on the heater when temp is lesser than 5
  if(temp<5){
    Serial.print("Temperature: ");
    Serial.print(temp);
    Serial.println("heater is turned ON");
    digitalWrite(10,1);
  }
  if(temp>8){
    Serial.print("Temperature: ");
    Serial.print(temp);
    Serial.println("heater is turned OFF");
    digitalWrite(10,0);
    
  }
  if(digitalRead(motion)== HIGH){
    Serial.println("Motion detected");
    Serial.println("Lights ON ");
    digitalWrite(6,1);
    }
  else{
    Serial.print("Lights OFF ");
    digitalWrite(6,0);
  }
}