Automated Password Typer

Now you don't have to remember any of your passwords, and they are still safe and ready to use!

Sep 8, 2018

•

35271 views

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22 respects

Components and supplies

Standard LCD - 16x2 White on Blue

Arduino Micro

Rotary Encoder with Push-Button

Tools and machines

3D Printer (generic)

Apps and platforms

Arduino IDE

Project description

Code

The code

c_cpp

1#include <Keyboard.h>                                 // 
2#include   <LiquidCrystal_I2C.h>                        // 
3#include <EEPROM.h>
4#define   pinA 5                                        //  
5#define pinB 6                                        //   
6#define btnPin 4                                      // 
7
8byte aState;                                           //   
9byte bState;                                          //    
10byte aLastState;                                      //    
11int dir;                                               //-1 -  . ., 1 -  . .
12byte attempt   = 0;                                     //-   
13int pos = 0;                                          //    
14byte typed = 0;                                       //  
15bool accepted   = false;                                //   
16
17String code = "101";                                  //   : 101 -- 110011
18int codeLen = 0;                                      // 
19String   enter = "";                                    //  
20
21int a = 0;                                                //    
22int len = 0;                                              // 
23int counter;
24
25byte   address = 0;
26long currentTime;
27
28String passwords[][2] {
29  {"Admin",   "eyamplepassword"},
30  {"EPN", ""},
31  {"Mail", ""},
32  {"YouTube",   ""},
33  {"Asus", ";"},
34  {"GMX", ""}
35};
36
37LiquidCrystal_I2C   lcd(0x3B, 16, 2);                   // 
38
39int lcdClear(byte x) {                                //    
40  if (x == 2) {                                       //2 clear all, 0 clear   first line, 1 clear second line
41    for (int i = 0; i < 2; ++i) {
42      lcd.setCursor(0,   i);
43      lcd.print("                ");
44    }
45  }
46  else {
47    lcd.setCursor(0,   x);
48    lcd.print("                ");
49  }
50}
51
52void setup() {
53   pinMode(pinA, INPUT);                               //  - 
54  pinMode(pinB,   INPUT);                               //  - 
55  pinMode(btnPin, INPUT);                             //   - 
56  Serial.begin(9600);                                 // 
57  Keyboard.begin();                                    // 
58  aLastState = digitalRead(pinA);                     //   .   
59  lcd.init();                                         // 
60  lcd.backlight();                                     // 
61  lcd.setCursor(0, 0);
62  lcd.print("<Password   Typer>");
63  lcd.setCursor(1, 1);
64  lcd.print("Version 1.6 PM");
65  delay(3000);
66   lcdClear(2);
67  while (passwords[a][0] != NULL) {
68    a++;
69    len++;
70   }
71  //Serial.println(len);
72}
73
74void getDirection() {
75  aState =   digitalRead(pinA);                         //   
76  if (aState != aLastState)   {                         // ...
77    if (aState == digitalRead(pinB)) {                           //   ...
78      //Serial.println("CCW 0");                        //   
79      dir   = -1;                                       //  . .
80    }
81    else {
82      //Serial.println("CW   1");                         //   
83      dir = 1;                                        //   . .
84    }
85  }
86  aLastState = aState;                                //   . 
87}
88
89void convert() {                                      //   ,   
90   for (int k = 0; k < codeLen; k++) {
91    enter.remove(k, 1);
92  }
93}
94
95void   check() {
96  if (enter == code) {
97    accepted = true;                                //    
98    lcdClear(2);
99    lcd.setCursor(4, 0);
100    lcd.print("Welcome!");
101     delay(2000);
102    lcdClear(2);
103    enter = "";
104    typed = 0;
105     lcd.setCursor(0, 0);
106    lcd.print(">");
107    lcd.print(passwords[pos][0]);
108     if (len > 1) {
109      lcd.setCursor(1, 1);
110      lcd.print(passwords[pos   + 1][0]);
111    }
112  }
113  else {
114    attempt += 1;                                    //-   
115    if (attempt == 3) {
116      lcdClear(2);
117      lcd.setCursor(0, 0);
118       lcd.print("Wrong password!");
119      lcd.setCursor(0, 1);
120      lcd.print("Wait   1 minute!");
121      currentTime = millis();
122      while (millis() - currentTime   < 1000 * 60) {
123        currentTime = millis();
124        EEPROM.update(address,   1);
125      }
126      EEPROM.update(address, 0);
127      attempt = 0;
128      lcdClear(2);
129       typed = 0;
130    }
131    else {
132      lcd.setCursor(7, 0);
133      lcd.print("          ");
134      lcd.setCursor(15, 1);
135      lcd.print(3 - attempt);
136       lcd.setCursor(7, 0);
137    }
138    accepted = false;                                //   
139    enter = "";
140  }
141}
142
143void loop() {
144  if (accepted == false)   {
145    if (EEPROM.read(address) == 1) { 
146        lcdClear(2);
147        lcd.setCursor(0,0);
148         lcd.print("      WAIT      ");
149        delay(1000 * 30);
150        lcdClear(2);
151         EEPROM.update(address, 0); 
152        delay(1000);
153    }
154    getDirection();                                  //  
155    if (typed == 0) {
156      lcd.setCursor(0,   0);
157      lcd.print("Unlock:");
158      lcd.setCursor(0, 1);
159      lcd.print("Attempts   left: 3");
160      typed = 1;
161      lcd.setCursor(7, 0);
162    }
163    if   (dir != 0) {
164      if (dir == -1) {
165        enter = enter + "0";
166      }
167       else {
168        enter = enter + "1";
169      }
170      codeLen = enter.length();                          //   
171      if (codeLen % 2 == 0) {
172        lcd.print("*");
173       }
174      dir = 0;
175    }
176    if (digitalRead(btnPin) == 0) {                       //   ...
177      delay(300);
178      convert();
179      check();
180    }
181  }
182
183   else {
184    getDirection();
185    if (dir == 1 || dir == -1) {
186      counter++;
187       if (counter % 2 == 0) {
188        counter = 0;
189        if (dir == 1) {
190           if (pos + 1 < len) {
191            if (pos % 2 == 0) {
192              pos++;
193               lcd.setCursor(0, 0);
194              lcd.print(" ");
195              lcd.setCursor(0,   1);
196              lcd.print(">");
197            }
198            else {
199               pos++;
200              lcdClear(2);
201              lcd.setCursor(0,   0);
202              lcd.print(">");
203              lcd.print(passwords[pos][0]);
204               if (pos + 1 <= len) {
205                lcd.setCursor(1, 1);
206                 lcd.print(passwords[pos + 1][0]);
207              }
208            }
209           }
210        }
211        else {
212          if (pos - 1 >= 0) {
213             if (pos % 2 == 0) {
214              pos--;
215              lcdClear(2);
216               lcd.setCursor(0, 1);
217              lcd.print(">");
218              lcd.print(passwords[pos][0]);
219               lcd.setCursor(1, 0);
220              lcd.print(passwords[pos - 1][0]);
221             }
222            else {
223              pos--;
224              lcd.setCursor(0,   1);
225              lcd.print(" ");
226              lcd.setCursor(0, 0);
227               lcd.print(">");
228            }
229          }
230        }
231       }
232      dir = 0;
233    }
234    if (digitalRead(btnPin) == 0) {
235      delay(300);
236       Keyboard.print(passwords[pos][1]);
237    }
238  }
239}
240

#include <Keyboard.h>                                 // 
#include   <LiquidCrystal_I2C.h>                        // 
#include <EEPROM.h>
#define   pinA 5                                        //  
#define pinB 6                                        //   
#define btnPin 4                                      // 

byte aState;                                           //   
byte bState;                                          //    
byte aLastState;                                      //    
int dir;                                               //-1 -  . ., 1 -  . .
byte attempt   = 0;                                     //-   
int pos = 0;                                          //    
byte typed = 0;                                       //  
bool accepted   = false;                                //   

String code = "101";                                  //   : 101 -- 110011
int codeLen = 0;                                      // 
String   enter = "";                                    //  

int a = 0;                                                //    
int len = 0;                                              // 
int counter;

byte   address = 0;
long currentTime;

String passwords[][2] {
  {"Admin",   "eyamplepassword"},
  {"EPN", ""},
  {"Mail", ""},
  {"YouTube",   ""},
  {"Asus", ";"},
  {"GMX", ""}
};

LiquidCrystal_I2C   lcd(0x3B, 16, 2);                   // 

int lcdClear(byte x) {                                //    
  if (x == 2) {                                       //2 clear all, 0 clear   first line, 1 clear second line
    for (int i = 0; i < 2; ++i) {
      lcd.setCursor(0,   i);
      lcd.print("                ");
    }
  }
  else {
    lcd.setCursor(0,   x);
    lcd.print("                ");
  }
}

void setup() {
   pinMode(pinA, INPUT);                               //  - 
  pinMode(pinB,   INPUT);                               //  - 
  pinMode(btnPin, INPUT);                             //   - 
  Serial.begin(9600);                                 // 
  Keyboard.begin();                                    // 
  aLastState = digitalRead(pinA);                     //   .   
  lcd.init();                                         // 
  lcd.backlight();                                     // 
  lcd.setCursor(0, 0);
  lcd.print("<Password   Typer>");
  lcd.setCursor(1, 1);
  lcd.print("Version 1.6 PM");
  delay(3000);
   lcdClear(2);
  while (passwords[a][0] != NULL) {
    a++;
    len++;
   }
  //Serial.println(len);
}

void getDirection() {
  aState =   digitalRead(pinA);                         //   
  if (aState != aLastState)   {                         // ...
    if (aState == digitalRead(pinB)) {                           //   ...
      //Serial.println("CCW 0");                        //   
      dir   = -1;                                       //  . .
    }
    else {
      //Serial.println("CW   1");                         //   
      dir = 1;                                        //   . .
    }
  }
  aLastState = aState;                                //   . 
}

void convert() {                                      //   ,   
   for (int k = 0; k < codeLen; k++) {
    enter.remove(k, 1);
  }
}

void   check() {
  if (enter == code) {
    accepted = true;                                //    
    lcdClear(2);
    lcd.setCursor(4, 0);
    lcd.print("Welcome!");
     delay(2000);
    lcdClear(2);
    enter = "";
    typed = 0;
     lcd.setCursor(0, 0);
    lcd.print(">");
    lcd.print(passwords[pos][0]);
     if (len > 1) {
      lcd.setCursor(1, 1);
      lcd.print(passwords[pos   + 1][0]);
    }
  }
  else {
    attempt += 1;                                    //-   
    if (attempt == 3) {
      lcdClear(2);
      lcd.setCursor(0, 0);
       lcd.print("Wrong password!");
      lcd.setCursor(0, 1);
      lcd.print("Wait   1 minute!");
      currentTime = millis();
      while (millis() - currentTime   < 1000 * 60) {
        currentTime = millis();
        EEPROM.update(address,   1);
      }
      EEPROM.update(address, 0);
      attempt = 0;
      lcdClear(2);
       typed = 0;
    }
    else {
      lcd.setCursor(7, 0);
      lcd.print("          ");
      lcd.setCursor(15, 1);
      lcd.print(3 - attempt);
       lcd.setCursor(7, 0);
    }
    accepted = false;                                //   
    enter = "";
  }
}

void loop() {
  if (accepted == false)   {
    if (EEPROM.read(address) == 1) { 
        lcdClear(2);
        lcd.setCursor(0,0);
         lcd.print("      WAIT      ");
        delay(1000 * 30);
        lcdClear(2);
         EEPROM.update(address, 0); 
        delay(1000);
    }
    getDirection();                                  //  
    if (typed == 0) {
      lcd.setCursor(0,   0);
      lcd.print("Unlock:");
      lcd.setCursor(0, 1);
      lcd.print("Attempts   left: 3");
      typed = 1;
      lcd.setCursor(7, 0);
    }
    if   (dir != 0) {
      if (dir == -1) {
        enter = enter + "0";
      }
       else {
        enter = enter + "1";
      }
      codeLen = enter.length();                          //   
      if (codeLen % 2 == 0) {
        lcd.print("*");
       }
      dir = 0;
    }
    if (digitalRead(btnPin) == 0) {                       //   ...
      delay(300);
      convert();
      check();
    }
  }

   else {
    getDirection();
    if (dir == 1 || dir == -1) {
      counter++;
       if (counter % 2 == 0) {
        counter = 0;
        if (dir == 1) {
           if (pos + 1 < len) {
            if (pos % 2 == 0) {
              pos++;
               lcd.setCursor(0, 0);
              lcd.print(" ");
              lcd.setCursor(0,   1);
              lcd.print(">");
            }
            else {
               pos++;
              lcdClear(2);
              lcd.setCursor(0,   0);
              lcd.print(">");
              lcd.print(passwords[pos][0]);
               if (pos + 1 <= len) {
                lcd.setCursor(1, 1);
                 lcd.print(passwords[pos + 1][0]);
              }
            }
           }
        }
        else {
          if (pos - 1 >= 0) {
             if (pos % 2 == 0) {
              pos--;
              lcdClear(2);
               lcd.setCursor(0, 1);
              lcd.print(">");
              lcd.print(passwords[pos][0]);
               lcd.setCursor(1, 0);
              lcd.print(passwords[pos - 1][0]);
             }
            else {
              pos--;
              lcd.setCursor(0,   1);
              lcd.print(" ");
              lcd.setCursor(0, 0);
               lcd.print(">");
            }
          }
        }
       }
      dir = 0;
    }
    if (digitalRead(btnPin) == 0) {
      delay(300);
       Keyboard.print(passwords[pos][1]);
    }
  }
}

The code

c_cpp

1#include <Keyboard.h>                                 // 
2#include  <LiquidCrystal_I2C.h>                        // 
3#include <EEPROM.h>
4#define  pinA 5                                        //  
5#define pinB 6                                        //  
6#define btnPin 4                                      // 
7
8byte aState;                                          //   
9byte bState;                                          //   
10byte aLastState;                                      //    
11int dir;                                              //-1 -  . ., 1 -  . .
12byte attempt  = 0;                                     //-   
13int pos = 0;                                          //   
14byte typed = 0;                                       //  
15bool accepted  = false;                                //   
16
17String code = "101";                                  //  : 101 -- 110011
18int codeLen = 0;                                      // 
19String  enter = "";                                    //  
20
21int a = 0;                                                //   
22int len = 0;                                              // 
23int counter;
24
25byte  address = 0;
26long currentTime;
27
28String passwords[][2] {
29  {"Admin",  "eyamplepassword"},
30  {"EPN", ""},
31  {"Mail", ""},
32  {"YouTube",  ""},
33  {"Asus", ";"},
34  {"GMX", ""}
35};
36
37LiquidCrystal_I2C  lcd(0x3B, 16, 2);                   // 
38
39int lcdClear(byte x) {                                //   
40  if (x == 2) {                                       //2 clear all, 0 clear  first line, 1 clear second line
41    for (int i = 0; i < 2; ++i) {
42      lcd.setCursor(0,  i);
43      lcd.print("                ");
44    }
45  }
46  else {
47    lcd.setCursor(0,  x);
48    lcd.print("                ");
49  }
50}
51
52void setup() {
53  pinMode(pinA, INPUT);                               //  - 
54  pinMode(pinB,  INPUT);                               //  - 
55  pinMode(btnPin, INPUT);                             //  - 
56  Serial.begin(9600);                                 // 
57  Keyboard.begin();                                   // 
58  aLastState = digitalRead(pinA);                     //  .   
59  lcd.init();                                         // 
60  lcd.backlight();                                    // 
61  lcd.setCursor(0, 0);
62  lcd.print("<Password  Typer>");
63  lcd.setCursor(1, 1);
64  lcd.print("Version 1.6 PM");
65  delay(3000);
66  lcdClear(2);
67  while (passwords[a][0] != NULL) {
68    a++;
69    len++;
70  }
71  //Serial.println(len);
72}
73
74void getDirection() {
75  aState =  digitalRead(pinA);                         //   
76  if (aState != aLastState)  {                         // ...
77    if (aState == digitalRead(pinB)) {                           //  ...
78      //Serial.println("CCW 0");                        //   
79      dir  = -1;                                       //  . .
80    }
81    else {
82      //Serial.println("CW  1");                         //   
83      dir = 1;                                        //  . .
84    }
85  }
86  aLastState = aState;                                //  . 
87}
88
89void convert() {                                      //   ,   
90  for (int k = 0; k < codeLen; k++) {
91    enter.remove(k, 1);
92  }
93}
94
95void  check() {
96  if (enter == code) {
97    accepted = true;                                //   
98    lcdClear(2);
99    lcd.setCursor(4, 0);
100    lcd.print("Welcome!");
101    delay(2000);
102    lcdClear(2);
103    enter = "";
104    typed = 0;
105    lcd.setCursor(0, 0);
106    lcd.print(">");
107    lcd.print(passwords[pos][0]);
108    if (len > 1) {
109      lcd.setCursor(1, 1);
110      lcd.print(passwords[pos  + 1][0]);
111    }
112  }
113  else {
114    attempt += 1;                                    //-  
115    if (attempt == 3) {
116      lcdClear(2);
117      lcd.setCursor(0, 0);
118      lcd.print("Wrong password!");
119      lcd.setCursor(0, 1);
120      lcd.print("Wait  1 minute!");
121      currentTime = millis();
122      while (millis() - currentTime  < 1000 * 60) {
123        currentTime = millis();
124        EEPROM.update(address,  1);
125      }
126      EEPROM.update(address, 0);
127      attempt = 0;
128      lcdClear(2);
129      typed = 0;
130    }
131    else {
132      lcd.setCursor(7, 0);
133      lcd.print("         ");
134      lcd.setCursor(15, 1);
135      lcd.print(3 - attempt);
136      lcd.setCursor(7, 0);
137    }
138    accepted = false;                                //  
139    enter = "";
140  }
141}
142
143void loop() {
144  if (accepted == false)  {
145    if (EEPROM.read(address) == 1) { 
146        lcdClear(2);
147        lcd.setCursor(0,0);
148        lcd.print("      WAIT      ");
149        delay(1000 * 30);
150        lcdClear(2);
151        EEPROM.update(address, 0); 
152        delay(1000);
153    }
154    getDirection();                                 //  
155    if (typed == 0) {
156      lcd.setCursor(0,  0);
157      lcd.print("Unlock:");
158      lcd.setCursor(0, 1);
159      lcd.print("Attempts  left: 3");
160      typed = 1;
161      lcd.setCursor(7, 0);
162    }
163    if  (dir != 0) {
164      if (dir == -1) {
165        enter = enter + "0";
166      }
167      else {
168        enter = enter + "1";
169      }
170      codeLen = enter.length();                         //   
171      if (codeLen % 2 == 0) {
172        lcd.print("*");
173      }
174      dir = 0;
175    }
176    if (digitalRead(btnPin) == 0) {                       //  ...
177      delay(300);
178      convert();
179      check();
180    }
181  }
182
183  else {
184    getDirection();
185    if (dir == 1 || dir == -1) {
186      counter++;
187      if (counter % 2 == 0) {
188        counter = 0;
189        if (dir == 1) {
190          if (pos + 1 < len) {
191            if (pos % 2 == 0) {
192              pos++;
193              lcd.setCursor(0, 0);
194              lcd.print(" ");
195              lcd.setCursor(0,  1);
196              lcd.print(">");
197            }
198            else {
199              pos++;
200              lcdClear(2);
201              lcd.setCursor(0,  0);
202              lcd.print(">");
203              lcd.print(passwords[pos][0]);
204              if (pos + 1 <= len) {
205                lcd.setCursor(1, 1);
206                lcd.print(passwords[pos + 1][0]);
207              }
208            }
209          }
210        }
211        else {
212          if (pos - 1 >= 0) {
213            if (pos % 2 == 0) {
214              pos--;
215              lcdClear(2);
216              lcd.setCursor(0, 1);
217              lcd.print(">");
218              lcd.print(passwords[pos][0]);
219              lcd.setCursor(1, 0);
220              lcd.print(passwords[pos - 1][0]);
221            }
222            else {
223              pos--;
224              lcd.setCursor(0,  1);
225              lcd.print(" ");
226              lcd.setCursor(0, 0);
227              lcd.print(">");
228            }
229          }
230        }
231      }
232      dir = 0;
233    }
234    if (digitalRead(btnPin) == 0) {
235      delay(300);
236      Keyboard.print(passwords[pos][1]);
237    }
238  }
239}
240

#include <Keyboard.h>                                 // 
#include  <LiquidCrystal_I2C.h>                        // 
#include <EEPROM.h>
#define  pinA 5                                        //  
#define pinB 6                                        //  
#define btnPin 4                                      // 

byte aState;                                          //   
byte bState;                                          //   
byte aLastState;                                      //    
int dir;                                              //-1 -  . ., 1 -  . .
byte attempt  = 0;                                     //-   
int pos = 0;                                          //   
byte typed = 0;                                       //  
bool accepted  = false;                                //   

String code = "101";                                  //  : 101 -- 110011
int codeLen = 0;                                      // 
String  enter = "";                                    //  

int a = 0;                                                //   
int len = 0;                                              // 
int counter;

byte  address = 0;
long currentTime;

String passwords[][2] {
  {"Admin",  "eyamplepassword"},
  {"EPN", ""},
  {"Mail", ""},
  {"YouTube",  ""},
  {"Asus", ";"},
  {"GMX", ""}
};

LiquidCrystal_I2C  lcd(0x3B, 16, 2);                   // 

int lcdClear(byte x) {                                //   
  if (x == 2) {                                       //2 clear all, 0 clear  first line, 1 clear second line
    for (int i = 0; i < 2; ++i) {
      lcd.setCursor(0,  i);
      lcd.print("                ");
    }
  }
  else {
    lcd.setCursor(0,  x);
    lcd.print("                ");
  }
}

void setup() {
  pinMode(pinA, INPUT);                               //  - 
  pinMode(pinB,  INPUT);                               //  - 
  pinMode(btnPin, INPUT);                             //  - 
  Serial.begin(9600);                                 // 
  Keyboard.begin();                                   // 
  aLastState = digitalRead(pinA);                     //  .   
  lcd.init();                                         // 
  lcd.backlight();                                    // 
  lcd.setCursor(0, 0);
  lcd.print("<Password  Typer>");
  lcd.setCursor(1, 1);
  lcd.print("Version 1.6 PM");
  delay(3000);
  lcdClear(2);
  while (passwords[a][0] != NULL) {
    a++;
    len++;
  }
  //Serial.println(len);
}

void getDirection() {
  aState =  digitalRead(pinA);                         //   
  if (aState != aLastState)  {                         // ...
    if (aState == digitalRead(pinB)) {                           //  ...
      //Serial.println("CCW 0");                        //   
      dir  = -1;                                       //  . .
    }
    else {
      //Serial.println("CW  1");                         //   
      dir = 1;                                        //  . .
    }
  }
  aLastState = aState;                                //  . 
}

void convert() {                                      //   ,   
  for (int k = 0; k < codeLen; k++) {
    enter.remove(k, 1);
  }
}

void  check() {
  if (enter == code) {
    accepted = true;                                //   
    lcdClear(2);
    lcd.setCursor(4, 0);
    lcd.print("Welcome!");
    delay(2000);
    lcdClear(2);
    enter = "";
    typed = 0;
    lcd.setCursor(0, 0);
    lcd.print(">");
    lcd.print(passwords[pos][0]);
    if (len > 1) {
      lcd.setCursor(1, 1);
      lcd.print(passwords[pos  + 1][0]);
    }
  }
  else {
    attempt += 1;                                    //-  
    if (attempt == 3) {
      lcdClear(2);
      lcd.setCursor(0, 0);
      lcd.print("Wrong password!");
      lcd.setCursor(0, 1);
      lcd.print("Wait  1 minute!");
      currentTime = millis();
      while (millis() - currentTime  < 1000 * 60) {
        currentTime = millis();
        EEPROM.update(address,  1);
      }
      EEPROM.update(address, 0);
      attempt = 0;
      lcdClear(2);
      typed = 0;
    }
    else {
      lcd.setCursor(7, 0);
      lcd.print("         ");
      lcd.setCursor(15, 1);
      lcd.print(3 - attempt);
      lcd.setCursor(7, 0);
    }
    accepted = false;                                //  
    enter = "";
  }
}

void loop() {
  if (accepted == false)  {
    if (EEPROM.read(address) == 1) { 
        lcdClear(2);
        lcd.setCursor(0,0);
        lcd.print("      WAIT      ");
        delay(1000 * 30);
        lcdClear(2);
        EEPROM.update(address, 0); 
        delay(1000);
    }
    getDirection();                                 //  
    if (typed == 0) {
      lcd.setCursor(0,  0);
      lcd.print("Unlock:");
      lcd.setCursor(0, 1);
      lcd.print("Attempts  left: 3");
      typed = 1;
      lcd.setCursor(7, 0);
    }
    if  (dir != 0) {
      if (dir == -1) {
        enter = enter + "0";
      }
      else {
        enter = enter + "1";
      }
      codeLen = enter.length();                         //   
      if (codeLen % 2 == 0) {
        lcd.print("*");
      }
      dir = 0;
    }
    if (digitalRead(btnPin) == 0) {                       //  ...
      delay(300);
      convert();
      check();
    }
  }

  else {
    getDirection();
    if (dir == 1 || dir == -1) {
      counter++;
      if (counter % 2 == 0) {
        counter = 0;
        if (dir == 1) {
          if (pos + 1 < len) {
            if (pos % 2 == 0) {
              pos++;
              lcd.setCursor(0, 0);
              lcd.print(" ");
              lcd.setCursor(0,  1);
              lcd.print(">");
            }
            else {
              pos++;
              lcdClear(2);
              lcd.setCursor(0,  0);
              lcd.print(">");
              lcd.print(passwords[pos][0]);
              if (pos + 1 <= len) {
                lcd.setCursor(1, 1);
                lcd.print(passwords[pos + 1][0]);
              }
            }
          }
        }
        else {
          if (pos - 1 >= 0) {
            if (pos % 2 == 0) {
              pos--;
              lcdClear(2);
              lcd.setCursor(0, 1);
              lcd.print(">");
              lcd.print(passwords[pos][0]);
              lcd.setCursor(1, 0);
              lcd.print(passwords[pos - 1][0]);
            }
            else {
              pos--;
              lcd.setCursor(0,  1);
              lcd.print(" ");
              lcd.setCursor(0, 0);
              lcd.print(">");
            }
          }
        }
      }
      dir = 0;
    }
    if (digitalRead(btnPin) == 0) {
      delay(300);
      Keyboard.print(passwords[pos][1]);
    }
  }
}

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