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

#define pinDHT 32
#define tipeDHT DHT22
#define pinTombol 33

float suhu;
float kelembapan;
int counterTombol;
bool lastButtonState = HIGH;

LiquidCrystal_I2C lcd (0x27, 16, 2);
DHT dht (pinDHT, tipeDHT);

void setup()
{
  lcd.init();
  lcd.backlight();
  pinMode(pinTombol, INPUT_PULLUP);
}

void loop()
{
  suhu = dht.readTemperature();
  kelembapan = dht.readHumidity();

  bool statusTombol = digitalRead (pinTombol);

  if (statusTombol == 0 && lastButtonState == HIGH)
  {
    counterTombol++;
    delay (200);
  }
  lastButtonState = statusTombol;

  //jika counter nya 0
  if (counterTombol == 0)
  {
    lcd.setCursor(0,0);
    lcd.print("Sensor Suhu dan");
    lcd.setCursor(0,1);
    lcd.print("Kelembapan DHT22");
  }

  //jika counter nya 1
  else if (counterTombol == 1)
  {
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Temp: ");
    lcd.print(suhu);
    lcd.print(" C");
    delay(500);
  }

  //jika counter nya 2
  else if (counterTombol == 2)
  {
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Hum: ");
    lcd.print(kelembapan);
    lcd.print(" %");
    delay(500);
  }

  //jika counter nya 3
  else if (counterTombol == 3)
  {
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Temp: ");
    lcd.print(suhu);
    lcd.print(" C");

    lcd.setCursor(0,1);
    lcd.print("Hum: ");
    lcd.print(kelembapan);
    lcd.print(" %");
    delay(500);
  }

  //jika counter sudah lebih dari 3:
  if (counterTombol > 3)
  {
    counterTombol = 0;
  }

}