HerrRiebmann

#include <Keypad.h>
#include <EEPROM.h>
#include "Arduino.h"
#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"

const byte COLS = 4; //4 Columns
const byte ROWS = 4; //4 Rows
char hexaKeys[ROWS][COLS] = {
  {4,3,2,1},