تم نشر هذا المشروع لجميع الأشخاص المهتمين في مجال تصنيع وابتكار المشاريع الإلكترونية والبرمجية، و نود التنويه أن موقع انا الكتروني يخلي مسؤوليته التامة في حال لم يعمل المشروع لدى العميل أو في حال الاستخدام الخاطئ للمكونات الإلكترونية والكهربائية التي قد تؤدي لحدوث أي مشكلة لا سمح الله.

تنويه: استخدم لوحة Bread board لتوصيل الوحدات بمنفذ 5V و GND

• للتعرف على تجهيز لوحة أردوينو للبرمجة قم بزيارة الرابط التالي.
• للإطلاع على كيفية تحميل وتنصيب المكتبات قم بزيارة الرابط التالي.
• قبل تحميل الكود البرمجي، عليك تحميل المكتبات التالية:
• Wire.h
• LiquidCrystal_I2C.h
• Servo.h
• في حال لم يعمل هذا الكود البرمجي، قم بتحميل ملف الكود بالضغط على زر التحميل الموجود في الأسفل.

//The following code should work out the box. If the joystick doesn’t register,
//try tuning the sensitivity settings below

//Included libraries
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

#define VRX_PIN A0 // Arduino pin connected to Joystick VRX pin
#define VRY_PIN A1 // Arduino pin connected to Joystick VRY pin

//Sensitivity for the Joystick
#define LEFT_THRESHOLD 400
#define RIGHT_THRESHOLD 800
#define UP_THRESHOLD 400
#define DOWN_THRESHOLD 800

//Joystick command setup
#define COMMAND_NO 0x00
#define COMMAND_LEFT 0x01
#define COMMAND_RIGHT 0x02
#define COMMAND_UP 0x04
#define COMMAND_DOWN 0x08

int xValue = 0; // To store value of the X axis
int yValue = 0; // To store value of the Y axis
int command = COMMAND_NO;

//LCD setup
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int LCD_COLS = 16;
const int LCD_ROWS = 2;
int currentRow = 1;
int currentCollumn = 0;

//booleans that are true when text is being printed on the LCD
bool upperTextIsPrinting = true;
bool lowerTextIsPrinting = false;

//Servo setup
Servo servo;
int servoPos = 0; //servo position in degrees

//Variables that store the password and user input
String currentPassword = “1234”;
String currentInput = “”;
int inputCount = 0;

//Enumerators for the 3 different states
enum state{
CLOSED,
OPEN,
SETNEWPASSWORD
};

int currentState = CLOSED;//Always starts closed

void setup()
{
int status;

Serial.begin(9600) ;

servo.attach(9);

servo.write(0);//0 degrees is closed

// Initialize the LCD display
lcd.init();
// Turn on the backlight
lcd.backlight();

}

void loop() {
xValue = analogRead(VRX_PIN);
yValue = analogRead(VRY_PIN);

command = COMMAND_NO;

//Reads the input from the joystick
if (xValue < LEFT_THRESHOLD)
command = command | COMMAND_LEFT;
else if (xValue > RIGHT_THRESHOLD)
command = command | COMMAND_RIGHT;

if (yValue < UP_THRESHOLD)
command = command | COMMAND_UP;
else if (yValue > DOWN_THRESHOLD)
command = command | COMMAND_DOWN;

if(currentState != OPEN) { //OPEN is the only state in which input isn’t read this way

//The following few if statements process the user input to the LCD screen.
//Every time an input is detected, it checks the direction of
//the joystick, adds the corresponding number on the bottom screen, and
//moves the cursor to the left. Then there is a short delay until the
//next input is read, because otherwise the input would be read incredibly
//fast, which is not what you want. They also add 1 to the integer ‘inputCount’,
//which gets used later when checking for the correct password.

if (command & COMMAND_LEFT) {
Serial.println(“COMMAND LEFT”);

ProcessInput(4);

delay(400);
}

if (command & COMMAND_RIGHT) {
Serial.println(“COMMAND RIGHT”);

ProcessInput(2);

delay(400);
}

if (command & COMMAND_UP) {
Serial.println(“COMMAND UP”);

ProcessInput(1);

delay(400);
}

if (command & COMMAND_DOWN) {
Serial.println(“COMMAND DOWN”);

ProcessInput(3);

delay(400);
}
}

//The switch case that handles the three different states. Case 0 is CLOSED,
//case 1 is OPEN and case 2 is SETNEWPASSWORD
switch(currentState) {
case 0:
if(servoPos =! 0) {
servoPos = 0;
}

if (upperTextIsPrinting) {
UpperText(“Input Password”);
currentCollumn = 0;
currentRow = 1;
ClearInput();
}

if (currentInput == currentPassword && inputCount == 4) {
upperTextIsPrinting = true;
lowerTextIsPrinting = true;

UpperText(“Correct!”);
ClearInput();

servo.write(180);
servoPos = 180;

currentState = OPEN;
}

if (inputCount == 4 && currentInput != currentPassword) {
ClearInput();
UpperText(“Incorrect!”);
LowerText(” “);

currentCollumn = 0;
currentRow = 1;
}
break;
case 1:
if(servoPos =! 180) {
servoPos = 180;
}//180 degrees opens the safe by moving the servo away from the lock

if(lowerTextIsPrinting && lowerTextIsPrinting) {
UpperText(“Correct!”);
LowerText(“Welcome”);
}

if (currentInput == “1”) {
upperTextIsPrinting = true;

servo.write(0);
servoPos = 0;

currentState = CLOSED;
}

if (currentInput == “2”) {
upperTextIsPrinting = true;
ClearInput();
lcd.clear();

currentState = SETNEWPASSWORD;
}
break;
case 2:
if (upperTextIsPrinting) {
UpperText(“New password?”);
currentCollumn = 0;
currentRow = 1;
ClearInput();
}

if (inputCount == 4) {
currentPassword = currentInput;
ClearInput();
upperTextIsPrinting = true;
lowerTextIsPrinting = true;

currentState = OPEN;
}
break;
}

lcd.setCursor(currentCollumn, currentRow);
}

//Function that processes the user input, as described on lines 97-103
void ProcessInput(int inputNumber) {
lcd.print(inputNumber);
currentInput += inputNumber;
currentCollumn += 1;
inputCount += 1;
}

//Function that prints text on the upper row of the LCD
void UpperText(String text) {
lcd.setCursor(0, 0);
lcd.clear();
lcd.print(text);

upperTextIsPrinting = false;
}

//Function that prints text on the lower row of the LCD
void LowerText(String text) {
lcd.setCursor(0, 1);
lcd.print(text);

lowerTextIsPrinting = false;
}

//Function that clears the password that the user put in
void ClearInput() {
currentInput = “”;
inputCount = 0;
}