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

#define DHTPIN 5     // Digital pin connected to the DHT sensor
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321

// Set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  Serial.println(F("DHT22 test!"));
  dht.begin();
  lcd.init();

  //intro gak penting
  lcd.setCursor(0,0);
  lcd.print(F("  monitor suhu"));
  lcd.setCursor(0,1);
  lcd.print(F("   & kelembapan"));
  delay(2000);
  lcd.clear();
  delay(1000);
  lcd.backlight();
  delay(1000);
  lcd.setCursor(0,0); lcd.print(F("dicoba"));
  lcd.setCursor(0,1); lcd.print(F("saja"));
  delay(1000);
  lcd.noBacklight();
  delay(1000);
  lcd.clear();
  delay(1000);
}

void loop() {
  // delay antar perhitungan
  delay(1000);
  // Pengambilan nilai suhu dan kelembapan
  float suhu = dht.readTemperature();
  float lembap = dht.readHumidity(); 

  // Check if any reads failed and exit early (to try again).
  if (isnan(suhu) || isnan(lembap)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    lcd.setCursor(0,0);  lcd.print(F(" Tidak terbaca"));
    return;
  }

  Serial.print(F("Suhu: "));
  Serial.println(suhu);
  Serial.print(F("Kelembapan: "));
  Serial.println(lembap);

  //Display data ke LCD =>tampung di data string
  String print_suhu = "suhu: " + String(suhu) + " C";
  String print_humd = "lembap: " + String(lembap) + " %";
  lcd.setCursor(0,0);  lcd.print(print_suhu);
  lcd.setCursor(0,1);  lcd.print(print_humd);
  
}