#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define DHTPIN 2    
#define DHTTYPE DHT22
#define BUZZER 12
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27,16,2);
void setup() 
{
  dht.begin();
  lcd.init();   
  lcd.backlight(); 
  pinMode(BUZZER, OUTPUT);
}
void loop() 
{
  delay(1000); 
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  lcd.setCursor(0,0); 
  lcd.print("TEMP: "); 
  lcd.print(t);
  lcd.setCursor(0,1); 
  lcd.print("HUMID: "); 
  lcd.print(h); 
  if(t > 30)
  {
    digitalWrite(BUZZER, HIGH);
  }
}