#include <LiquidCrystal.h>
#include <Keypad.h>

LiquidCrystal lcd(5,4,3,2,1,0);

const uint8_t ROWS = 4;
const uint8_t COLS = 3;
char KEYS[ROWS][COLS]={
  {'1','2','3'},
  {'4','5','6'},
  {'7','8','9'},
  {'*','0','#'}
};

int COLPINS[COLS] = {9,8,7};
int ROWPINS[ROWS] = {13,12,11,10};

Keypad keypad = Keypad(makeKeymap(KEYS), ROWPINS, COLPINS, ROWS, COLS);

void setup() {
  // put your setup code here, to run once:
  lcd.begin(16,2);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  char key = keypad.getKey();

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

}