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


// LCD: adres 0x27, 16 karakters, 2 regels
LiquidCrystal_I2C lcd(0x27, 16, 2);

/* Keypad setup */
const byte KEYPAD_ROWS = 4;
const byte KEYPAD_COLS = 3;
byte rowPins[KEYPAD_ROWS] = {5, 4, 3, 2};
byte colPins[KEYPAD_COLS] = {A3, A2, A1};
char keys[KEYPAD_ROWS][KEYPAD_COLS] = {
  {'1', '2', '3'},
  {'4', '5', '6'},
  {'7', '8', '9'},
  {'*', '0', '#'}
};

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, KEYPAD_ROWS, KEYPAD_COLS);

//Functies
void toonStatus();

void setup() {
  // lcd initialisatie
  lcd.init();           // LCD initialiseren
  lcd.backlight();      // Backlight aan
  toonStatus();         // Eerste status tonen

}

void loop() {
  auto key = keypad.getKey();
  while (key != 'A' && key != '#') {
    key = keypad.getKey();

  }
}


  void toonStatus() {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(" Geef Code....");
  }