#include <LiquidCrystal.h>
LiquidCrystal lcd(18, 5, 17, 16, 4, 0);
const int triggerPin = 12;
const int echoPin = 14;
#include "DHT.h"
#define DHTPIN 21
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
void setup() {
  Serial.begin(115200);
  pinMode(triggerPin, OUTPUT);
  pinMode(echoPin, INPUT_PULLUP);
  lcd.begin(20, 4);
  delay(1000);
  dht.begin();
}

void loop() {
  // Trigger the ultrasonic sensor
  digitalWrite(triggerPin, LOW);
  delayMicroseconds(2);
  digitalWrite(triggerPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(triggerPin, LOW);

  // Measure the echo time
  float duration = pulseIn(echoPin, HIGH);
   float distance = duration * 0.034 / 2;
   
  float humidity = dht.readHumidity();
  Serial.println(humidity);

  float temperature = dht.readTemperature();
  Serial.println(temperature);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(humidity);
  lcd.setCursor(0, 1);
  lcd.print(temperature);
  lcd.setCursor(0, 2);
  lcd.print("Distance: " + String(distance, 0) + " cm");
  lcd.setCursor(0, 3);
  lcd.print("Distance: " + String(distance / 30.48) + " feet");
  delay(1000); // Delay for readability
}