#include <Servo.h>
#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define triggerPin 12
#define echoPin 13
#define ledPin1 2
#define DHTPIN 7
#define DHTTYPE DHT11
Servo myservo;
double duration, distance;
#define ledPin2 6
#define inputPin 4
int pirState = LOW;
int val = 0;
int pos = 0;

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(9600);
  Serial.println("Theft Detection mode turn On");
  pinMode(triggerPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(inputPin, INPUT);
  myservo.attach(9);
  dht.begin();
  lcd.begin(16, 2);
  lcd.print("Temperature");
  lcd.setCursor(0, 1);
  lcd.print("Humidity");
}

void loop() {
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(2);
  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(2);

  duration = pulseIn(echoPin, HIGH);
  distance = (duration / 2) * 0.0343;

  if (distance < 200) {
    digitalWrite(ledPin1, HIGH);
    Serial.println("Open the door");
    delay(10000);
    myservo.write(90);
    delay(1000);
  }
  else {
    digitalWrite(ledPin1, LOW);
    Serial.println("Close the door");
    delay(10000);
    myservo.write(0);
    delay(1000);
  }

  val = digitalRead(inputPin);
  if (val == HIGH) {
    digitalWrite(ledPin2, HIGH);
    if (pirState == LOW) {
      pirState = HIGH;
      Serial.println("Motion detected!. Turn on the light");
    }
  } else {
    digitalWrite(ledPin2, LOW);
    if (pirState == HIGH) {
      pirState = LOW;
      Serial.println("Motion ended!. Turn off the light");
    }
  }

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

  lcd.setCursor(12, 0);
  lcd.print(temperature);
  lcd.write((byte)0xDF);
  lcd.print("C");

  lcd.setCursor(9, 1);
  lcd.print(humidity);
  lcd.print("%");
}