#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define DHTPIN 2  // Digital pin where the DHT22 is connected
#define DHTTYPE DHT22  // Type of DHT sensor

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 20, 4); // I2C address 0x27, 20 columns, 4 rows

void setup() {
  Serial.begin(9600);
  lcd.begin(20, 4);
  dht.begin();
}

void loop() {
  // Read humidity and temperature from DHT22 sensor
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // Display on LCD 20x4
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temperature);
  lcd.print("C");
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print("%");

  // Print to Serial Monitor for verification
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print("°C, Humidity: ");
  Serial.print(humidity);
  Serial.println("%");

  delay(2000);  // Wait for 2 seconds before the next reading
}