#include <LiquidCrystal.h>
LiquidCrystal lcd(18, 5, 17, 16, 4, 0);
#include <DHT.h>
const int dhtPin = 33;
byte sensorPin = 2;
DHT dht(dhtPin, DHT22);
const int triggerPin = 12;
const int echoPin = 14;
byte buzzerPin = 13;
void setup() {
  Serial.begin(115200);
  pinMode(triggerPin, OUTPUT);
  pinMode(sensorPin, INPUT);
  pinMode(echoPin, INPUT_PULLUP);
  pinMode(buzzerPin, OUTPUT);
  lcd.begin(20, 4);
  dht.begin();
  delay(1000);
}
void loop() {

  
  // Trigger the ultrasonic sensor
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(2);
  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(triggerPin, LOW);
  float duration=pulseIn(echoPin,HIGH);
  float distance=duration*0.034/2;
  float temperature = dht.readTemperature();
  Serial.println(temperature);
  int sensorValue = digitalRead(sensorPin);
  Serial.println(sensorValue);
  if (sensorValue == HIGH)
  {
    digitalWrite(buzzerPin, HIGH);
    Serial.println("motion detected...");
    lcd.setCursor(0, 2);
    lcd.println("motion detected");
  }
  else {
    digitalWrite(buzzerPin, LOW);
    lcd.setCursor(0, 2);
    lcd.println("motion false");
    // Measure the echo time
    float duration = pulseIn(echoPin, HIGH);

    float distance = duration * 0.034 / 2;
    


    lcd.setCursor(0, 0);
    lcd.print("temperature: " + String(temperature) + char(223) + "C");
    lcd.setCursor(0, 1);
    lcd.print("Distance: " + String(distance, 0) + " cm");


    delay(2000); // Delay for readability
  }
}