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

////////////////////////////////KEYPAD_SETUP//////////////////////////////
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] = { 9, 8, 7, 6 }; // Pins connected to C1, C2, C3, C4
uint8_t rowPins[ROWS] = { 13, 12, 11, 10 }; // Pins connected to R1, R2, R3, R4
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);
////////////////////////////////KEYPAD_SETUP_END//////////////////////////////

LiquidCrystal_I2C lcd(0x27, 16, 2);
String select = "";


void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("hi");
}

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

  if (key != NO_KEY && key != 'A') {
    Serial.println(key);
    select = select + key;
  }
  if (key == 'A') {
    Serial.println(select);
  }



  
}