// PERTAMINI SEDERHANA CUSTOM BY TAV SMKN 1 WAYTENONG
#include < Keypad.h >
#include < LiquidCrystal_I2C.h >
// Setting Keypad
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] = { 9, 10, 11, 12};
byte colPins[COLS] = { 7, 6, 13, 4};
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);
LiquidCrystal_I2C lcd(0x27, 16, 2);