#include < Keypad.h >
#include < LiquidCrystal.h >
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= { 2, 3, 4, 5}; // Adjust these pins as needed
byte colPins[COLS] = { 6, 7, 8, 9}; // Adjust these pins as needed
// Define the LCD display
LiquidCrystal lcd(10, 11, 12, 13, A0, A1); // Adjust these pins as needed
// Define LEDs
const int ledRed = A2; // Adjust pin as needed
const int ledGreen = A3; // Adjust pin as needed