#include <Keypad.h>

#include <LiquidCrystal.h> 
int d4 = 11 ; 
int d5 = 10 ; 
int d6 = 9 ; 
int d7 = 8 ;
int rs = 13 ; 
int e = 12  ; 


LiquidCrystal lcd(rs,e,d4,d5,d6,d7) ; 

const byte ROWS = 4;
const byte COLS = 4;

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

byte rowPins[ROWS] = { 5, 4, 3, 2}; 
byte colPins[COLS] = {A1, A2, A3, A4}; 
Keypad keypad = Keypad(makeKeymap(keys), rowPins,colPins, ROWS, COLS);


void setup() {
  Serial.begin(9600);
}
void loop() {
    char key = keypad.getKey();
     if (key != NO_KEY) {
    lcd.setCursor(0, 0);
    lcd.setCursor(0, 1);
    lcd.print(key);
    delay(400); 
  }
else{
  lcd.clear();
}
}