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


#define DHT_PIN 21
#define DHT_TYPE DHT22


DHT dht(DHT_PIN, DHT_TYPE);


LiquidCrystal_I2C lcd(0x27, 20, 4); 

void setup() {

  Wire.begin(15, 16); 
 
  lcd.init();
  lcd.backlight();
  
  dht.begin();
  
  lcd.setCursor(2, 0);
  lcd.print("Termo Higrometro");
}

void loop() {
  
  float hum = dht.readHumidity();
  float tempC = dht.readTemperature();


  if (isnan(hum) || isnan(tempC)) {
    lcd.clear();
    lcd.setCursor(0, 1);
    lcd.print("Erro ao ler sensor!");
  } else {
   
    lcd.setCursor(0, 1);
    lcd.print("Umidade: ");
    lcd.print(hum, 2);
    lcd.print("%");

   
    lcd.setCursor(0, 2);
    lcd.print("Temperatura: ");
    lcd.print(tempC, 2);
    lcd.print("C");

   
    lcd.setCursor(2, 3);
    lcd.print("Beatriz Batel");
  }

  delay(2000);
}