Week 4: Meeting with Supervisor/Test Simulation

On 5 March 2018, I have meet my Supervisor to talk about the first attempt for my working project. The coding burn inside the arduino consists the keypad interact with the arduino and I2C when a correct password entered the system.

Here's a few line coding on my first attempt

#include <LiquidCrystal_I2C.h>
#include <Keypad.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

constexpr uint8_t greenLed = 7;
constexpr uint8_t redLed = 6;

char initial_password[4] = {'1', '2', '3', '4'};

char key_pressed = 0; 

const byte rows = 4;
const byte columns = 4;

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

// Initializing pins for keypad
byte row_pins[rows] = {A0, A1, A2, A3};
byte column_pins[columns] = {2, 1, 0};

// Create instance for keypad
Keypad keypad_key = Keypad( makeKeymap(hexaKeys), row_pins, column_pins, rows, columns);

void setup() {
  // Arduino Pin configuration
  pinMode(buzzerPin, OUTPUT);
  pinMode(redLed, OUTPUT);
  pinMode(greenLed, OUTPUT);

lcd.begin();   // LCD screen

lcd.backlight();
SPI.begin(); 

Next, I need to do research about the MFRC522 and GSM900 module to complete my project.