#include <LiquidCrystal_I2C.h>
#include <Keypad.h>
#include <Dht.h>



LiquidCrystal_I2C lcd (0x27, 16, 2);

const uint8_t x= 4;
const uint8_t y= 4;

uint8_t pinBaris [x] ={9,8,7,6};
uint8_t pinKolom[y] ={5,4,3,2};

char keys [x][y] = {{'1','2','3','A'},
                    {'4','5','6','B'},
                    {'7','8','9','C'},
                    {'*','0','#','D'}};

Keypad K = Keypad(makeKeymap(keys),pinBaris,pinKolom,x,y);
String PINTersimpan = "1589";
String PINTerinput = "";
bool kesesuaianPIN = false;
void selamatDatang () {
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("welcome");
  lcd.setCursor(0,1);;
  lcd.print("PIN:");
}
void setup() {
  Serial.begin(115200);
  dht.begin();
  lcd.init();
  lcd.backlight();
  selamatDatang();

  while  (!kesesuaianPIN) {
    char bacaKey = K.getKey();
    if (bacaKey != NO_KEY) {
      if (bacaKey =='D'){
        if  (PINTersimpan == PINTerinput) {
          'kesesuainPIN'= true;
        }
      }else {
        PINTerinput =  PINTerinput + bacaKey;
        Serial.println(bacaKey);
      lcd.print(bacaKey);
      }
    }
}
}

void loop() {
  float t = dht.readTemperatur();
  float h = dht.reeadHumidity();
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("temp :" + string(t) + "'c")
  lcd.setCursor(0,1);
  lcd.print("temp :" + string(h) + "%")
  lcd.print("berhasil login");
  delay(200);
  
}