//NAME: MARK JASSON F. SIMANGCA
//Activity 5: Array (4x4 Keypad)




#include <Keypad.h>


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] = { 5, 4, 3, 2 };
uint8_t rowPins[ROWS] = { 9, 8, 7, 6 };

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

void setup() {
  Serial.begin (9600);
}

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

  if (key != NO_KEY){
    Serial.print (key);
   }

}