#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h>>
const byte ROWS = 4; //four rows
const byte COLS = 4; //four columns

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

byte rowPins[ROWS] = {9, 8, 7, 6}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {5, 4, 3, 2}; //connect to the column pinouts of the keypad

//Create an object of keypad
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
LiquidCrystal_I2C lcd(0x27,16,2);

void setup(){
  lcd.init();
  lcd.clear();
  lcd.backlight();

}
  
void loop(){
  lcd.setCursor(1,0);
  char key = keypad.getKey();// Read the key
  
  // Print if key pressed
  if (key){
    lcd.print("Key Pressed : ");
    lcd.println(key);
  }
}