#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'}, //array 2 dimensi
                   {'4','5','6','B'},
                   {'7','8','9','C'},
                   {'*','0','#','D'}};

Keypad k = Keypad(makeKeymap(keys),pinBaris,pinKolom,x,y);

int DHTPin = A0;
int DHTType = DHT22;
DHT dht(DHTPin, DHTType);

bool PINSesuai = false;
String PINTersimpan = "1207";
String PINTerinput = "";

void welcomeScreen(){
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("WELCOME TO EBT");
  lcd.setCursor(0,1);
  lcd.print("PIN:");

}

void setup() {
  dht.begin();
  Serial.begin(115200);
  lcd.init();
  lcd.backlight();
  welcomeScreen(); 
 
  while (!PINSesuai) {
    char bacaKey = k.getKey();
    if (bacaKey != NO_KEY) {
      Serial.print(bacaKey);  
        if(bacaKey == 'D'){
          if(PINTersimpan == PINTerinput){
            PINSesuai = true;
          }
          PINTerinput = "";
          welcomeScreen();
        } else{

    PINTerinput = PINTerinput + bacaKey;
    lcd.setCursor(0,1);
    lcd.print("PIN:" + PINTerinput);
    }
    }
  }
}
void loop() {
    
  float t = dht.readTemperature();
  float h = dht.readHumidity();

  lcd.print("LOGIN SUKSES");
  delay(1000);

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print(" Suhu " + String (t) + "'C");
  lcd.setCursor(0,1);
  lcd.print(" Humid " + String (h) + " %");
  delay(300);
  

}