#include <LiquidCrystal.h>   //library LCD
LiquidCrystal lcd(13,14,16,17,18,19); //pin(RS, E, D4, D5, D6, D7)
#include <DHT.h> //library DHT22
#define DHTPIN 15 //pin data DHT22 konek ke pin 15 Arduino
#define DHTTYPE DHT22 //jenis sensor DHT22
DHT dht(DHTPIN, DHTTYPE); //setup pin dan jenis DHTT ke library
//deklarasi variabel untuk menampung pembacaan suhu & kelembaban
float humi, temp; 

void setup()
{
  lcd.begin(16, 2);  //type LCD 16x2
  lcd.print("Monitoring DHT22"); //tampilan pertama  
  delay(2000); //tunda 2 detik 
  lcd.clear(); //hapus tampilan
  lcd.print("Suhu   = ");//tampilkan di baris 1
  lcd.setCursor(0,1);//pindah ke baris 2
  lcd.print("Lembab = ");//tampilkan di baris 2
}
//============================
void loop()
{
  humi = dht.readHumidity(); //baca kelembaban
  temp = dht.readTemperature();//baca suhu
  if (isnan(humi) || isnan(temp)) {  //jika tidak berhasil  
    return;//kembali
  }
  else{ //jika berhasil membaca sensor
    lcd.setCursor(9,0); //set kursor di baris 1, kolom 6
    lcd.print(temp);//tampilkan nilai suhu
    lcd.print(" C ");//Celcius
    lcd.setCursor(9,1);//set kursor di baris 2, kolom 6
    lcd.print(humi);//tampilkan nilai kelembaban
    lcd.print(" % "); //% RH  
  }
  delay(1000); //tunda 1 detik
}