/* @file CustomKeypad.pde
|| @version 1.0
|| @author Alexander Brevig
|| @contact [email protected]
||
|| @description
|| | Demonstrates changing the keypad size and key values.
|| #
*/
#include <Keypad.h>

const static int ROWS = 4, COLS = 3;

static char KEYPAD[4][3] = {
    {'1', '2', '3'}, 
    {'4', '5', '6'}, 
    {'7', '8', '9'}, 
    {'*', '0', '#'}
};

// NOTE: Change the pins if physical pins are changed
static byte rowPins[ROWS] = {10,9,8,7};
static byte colPins[COLS] = {6,5,4};

//initialize an instance of class NewKeypad
Keypad customKeypad = Keypad( makeKeymap(KEYPAD), rowPins, colPins, ROWS, COLS); 

void setup(){
  Serial.begin(9600);
}
  
void loop(){
  char customKey = customKeypad.getKey();
  
  if (customKey){
    Serial.println(customKey);
  }
}