الكود البرمجي لبرمجة جهاز التحكم الدقيق

// C++ code

//

#include <Adafruit_LiquidCrystal.h>

#include <Keypad.h>

#include <Servo.h>

Adafruit_LiquidCrystal lcd(0);

Servo servo;

const byte numRow = 4 ;

const byte numCols = 4 ;

char keymap [numRow][numCols] =

{

  {'1','2','3','A'},

  {'4','5','6','B'},

  {'7','8','9','C'},

  {'*','0','#','D'},

 

};

byte rowPins[numRow] = {9,8,7,6}; 

byte colPins[numCols] = {5,4,3,2};

 

Keypad keypad =  Keypad (makeKeymap(keymap),rowPins , colPins ,numRow ,numCols);

char password[4];

void setup()

{

 

  servo.attach(11);

  servo.write(0);

  lcd.begin(16,2);

  lcd.setCursor(0,0);

  lcd.print("set 4 character ");

  lcd.setCursor(0,1);

  lcd.print("password: ");

  for (int i = 0 ; i<4 ; i++){

    password[i]= keypad.waitForKey();

  }

}

 

void loop ()

{

  lcd.clear ();

  lcd.setCursor (0,0);

  lcd.print("Enter password: ");

  bool correctpass = true ; 

  char buttonPressed ;

  for (int i = 0 ; i<4 ; i++){

    buttonPressed = keypad.waitForKey();

    if (password[i] != buttonPressed)

              {

                             correctpass = false ;

   

              }

     lcd.setCursor (i,1);

    lcd.print(buttonPressed);

 

  }

  delay (1000);

  if (correctpass){

    lcd.clear();

    lcd.setCursor (0,0);

    lcd.print("Correct password ");

    lcd.setCursor (0,1);

    lcd.print("Unlocking ...  ");

    servo.write(180);

    delay (5000);

    servo.write(0);

  }

  else {

   lcd.clear();

   lcd.setCursor (0,0);

    lcd.print("wrong password  ");

   

  }

   

 

}