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

const int dhtPin = 2;             // Digital pin for the DHT22 sensor
const int lcdColumns = 20;        // Number of columns in your LCD
const int lcdRows = 4;            // Number of rows in your LCD

DHT dht(dhtPin, DHT22);           // Create a DHT object for the DHT22 sensor
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);  // Change the address if needed

const int temperatureThreshold = 30;  // Adjust the temperature threshold based on your needs

void setup() {
    Serial.begin(9600);
    dht.begin();  // Initialize the DHT22 sensor
    lcd.begin(lcdColumns, lcdRows);  // Initialize the LCD screen
    lcd.print("Room Temperature Sensing");
    delay(2000);
    lcd.clear();
}

void loop() {
       
    float humidity = dht.readHumidity();
    float temperatureC = dht.readTemperature();

    lcd.setCursor(0, 0);
    lcd.setCursor(0, 1);
    lcd.print("Temp:");
    lcd.print(temperatureC);
    lcd.print(" C");
    
    String msg = temperatureC > 35 ? "HOT" : temperatureC < 15 ? "COLD" : "OK";

    Serial.print("Temperature: ");
    Serial.print(temperatureC);
    Serial.println("°C");
    delay(500);
    Serial.print("The climate is ");
    Serial.println(msg);
   delay(500);
    Serial.print("Humidity: ");
    Serial.print(humidity);
  Serial.println("%");
  delay(1000);
}