// Include necessary libraries
#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <DHT.h>


// Define the pin for the DHT22 sensor
const int dhtpin = 4;

// Create an object for the LCD display and DHT sensor
LiquidCrystal_I2C lcd(0x27,20,4);

// Create an object for the DHT sensor
DHT Sensor(dhtpin,DHT22);


// Variables to store temperature and humidity values
float temp = 0;
float Humidity = 0;
float c = 0;
float f = 0;


void setup() {
   // Initialize the LCD display
  lcd.begin(20,4);
  lcd.backlight();

  // Display a welcome message on the LCD
  lcd.setCursor(4,1);
  lcd.print("Weather Station");
  delay(3000);

  // Clear the LCD and initialize the DHT sensor
  lcd.clear();
  Sensor.begin();

  // Set the DHT22 pin as INPUT
  pinMode(dhtpin,INPUT);
    
}

void loop() {
  // Read humidity and temperature values from the DHT22 sensor
  Humidity = Sensor.readHumidity();
  temp = Sensor.readTemperature();
  delay(500);

  // Convert temperature to Fahrenheit
  f= temp * 1.8 + 32;

  // Display temperature and humidity on the LCD
  lcd.setCursor(0,0);
  lcd.print("Temp (F): ");
  lcd.print(f,1);
  lcd.setCursor(0,1);
  lcd.print("Temp(C): ");
  lcd.print(temp,1);
  lcd.print(" C ");
  lcd.setCursor(0,2);
  lcd.print("Humidity: ");
  lcd.print(Humidity,1);
  lcd.print(" % ");
   
  delay(200);
  }