//libraries 
#include <DHT.h> //importing library for sensor 
#include <LiquidCrystal_I2C.h> 

//Constants
#define DHTPIN 7 // using number 7
#define DHTTYPE DHT22 // DHT 22
DHT dht(DHTPIN, DHTTYPE); // Initialize DHT sensor 
LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

//Variables
float hum; //Stores the humidity value 
float temp; //Stores the temp value 

int sensorPin = A0; // select input pin for the potentiomemter
int sensorValue = 0; // variable to store the value coming from the sensor

void setup() {
  // Initialize the LCD
  lcd.init();
  lcd.backlight();
  Serial.begin(9600); // start communication between serial and sensor
  dht.begin();
}

void loop() {
  // Delay before reading sensor data
  delay(2000);

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

  // Print temperature and humidity values to serial monitor
  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print(" %, Temp: ");
  Serial.print(temp);
  Serial.println(" C");

  // Display temperature and humidity on the LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temp);
  lcd.print(" C");
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(hum);
  lcd.print(" %");

  // Delay after displaying temperature and humidity
  delay(2000);
}