//______________________________________________________
//==========TUGAS 2_PROGRAM KEYPAD DAN LCD I2C==========
//______________________________________________________
//NAMA      : NABILA HASNA RIZQI NURFADHILLAH
//NIM       : 2103411036
//NO.ABSEN  : 19
//KELAS     : TOLI 3B
//______________________________________________________

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

LiquidCrystal_I2C lcd(0x27, 16, 4); 

const uint8_t ROWS = 4;
const uint8_t COLS = 4;
char keys[ROWS][COLS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};

uint8_t colPins[COLS] = { 12, 5, 4, 2 }; // Pins connected to C1, C2, C3, C4
uint8_t rowPins[ROWS] = { 18, 15, 14, 13 }; // Pins connected to R1, R2, R3, R4

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  lcd.init();
  lcd.backlight();
  lcd.setCursor(6,0);
  lcd.print("TUGAS 2");
  

}

void loop() {
  char key = keypad.getKey();

  if (key != NO_KEY) {
    lcd.setCursor(0,2);
    lcd.print(key);
  }
}