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

int DHTPin = A0;
int DHTType = DHT22;

DHT dht(DHTPin, DHTType);

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 TO EBT");
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'){ //D tidak bisa diketik
  if (PINTersimpan == PINTerinput) {
  kesesuaianPIN = true;
}
PINTerinput = "";
selamatDatang();

}else {
  PINTerinput = PINTerinput + bacaKey;
  Serial.print(bacaKey);
  lcd.print(bacaKey);
}
  }
}
}

void loop() {
  // put your main code here, to run repeatedly:
float t = dht.readTemperature();
float h = dht.readHumidity();

  lcd.clear();
  delay(400);
  lcd.setCursor(0,0);
  lcd.print("Temp ;"+ String(t) + "'C");
  lcd.setCursor (0,1);
  lcd.print("Humid :"+ String(h) + "%");
delay(400);
}