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

LiquidCrystal lcd (12, 11, 10, 9, 8, 7);


const byte r = 4;
const byte c = 4;
char keys[r][c]={
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

byte cp[c] = {A3, A2, A1, A0}; // Pins connected to C1, C2, C3, C4
byte rp[r] = {5, 4, 3, 2}; // Pins connected to R1, R2, R3, R4


Keypad keypad = Keypad(makeKeymap(keys), rp, cp, r, c);

void setup() {


}

void loop() {


  char key = keypad.getKey();
  
  if(key !=NO_KEY) {
    lcd.print (key);
    
  }

}