#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "DHT.h"
#define DHTPIN A1
#define DHTTYPE DHT22 
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup() {
  Serial.begin(9600);
  dht.begin(); 
  lcd.init();  
  lcd.backlight();  
  lcd.setCursor(0, 0);
  lcd.print("ALIN SENSOR");
  lcd.setCursor(1, 1);
  lcd.print("Temp & Humidity");
  delay(1000);
  lcd.clear();
}
void loop() {
  delay(0); 
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  if (isnan(temperature) || isnan(humidity)) {
    Serial.println("Failed to read from DHT22 sensor!");
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Sensor Error!");
    return;
  }
  Serial.print("Temp: ");
  Serial.print(temperature);
  Serial.print(" °C | Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temperature, 1);
  lcd.print((char)223); 
  lcd.print("C");
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity, 1);
  lcd.print(" %");
}