Win10 login via MFRC522, HC06, OLED, HCSR04 (+Android security)

1#include <AnalogPin.h>
2#include <Keyboard.h>
3#include <SPI.h>
4#include
5  <Wire.h>
6#include <MFRC522.h>
7#include <SoftwareSerial.h>
8#include <Ultrasonic.h>
9#include
10  <Adafruit_SSD1306.h>
11#include <U8g2_for_Adafruit_GFX.h>
12
13#define LED 13
14
15AnalogPin
16  Apin(A0);
17U8G2_FOR_ADAFRUIT_GFX u8g2_for_adafruit_gfx;
18MFRC522 mfrc522(SS,
19  5);
20MFRC522::MIFARE_Key key;
21SoftwareSerial EEBlue(11, 10);
22Ultrasonic
23  ultrasonic(8, 7, 68000UL);
24Adafruit_SSD1306 display = Adafruit_SSD1306(128, 32,
25  &Wire, 13, 400000UL, 100000UL);
26
27const char card1[32] = "EB1CEFFC";
28const
29  long passwordExpireInterval = 3600000;
30char str[32] = "";
31String readid,
32  password = "";
33byte readCard[4];
34byte distance, i, lastx, x = 0;
35byte
36  isLogged = 0;
37unsigned long lastPasswordCheck, lastPotChange, start = 0;
38
39void
40  setup() {
41   display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
42   u8g2_for_adafruit_gfx.begin(display);
43
44   display.clearDisplay();
45   display.display();
46   pinMode(LED, OUTPUT);
47
48   pinMode(11, INPUT);
49   pinMode(10, OUTPUT);
50   digitalWrite(LED, HIGH);
51
52   Serial.begin(57600);
53   SPI.begin();
54   Keyboard.begin();
55   EEBlue.begin(9600);
56
57   mfrc522.PCD_Init();
58}
59void setPassword() {
60   if (EEBlue.available()
61  > 0) {
62      password = EEBlue.readStringUntil('\
63');
64   }
65}
66void resetPassword()
67  {
68   if ((millis() - lastPasswordCheck) >= passwordExpireInterval) {
69      password
70  = "";
71      lastPasswordCheck = millis();
72   }
73}
74void loginCommand()
75  {
76   delay(400);
77   Keyboard.press(KEY_LEFT_CTRL);
78   Keyboard.press('a');
79
80   Keyboard.releaseAll();
81   delay(400);
82   Keyboard.print(password);
83
84   Keyboard.releaseAll();
85   delay(100);
86   Keyboard.press(KEY_RETURN);
87
88   Keyboard.release(KEY_RETURN);
89   isLogged = 1;
90   digitalWrite(LED, HIGH);
91
92   message();
93}
94void winLock() {
95   Keyboard.press(KEY_LEFT_GUI);
96   Keyboard.press('l');
97
98   Keyboard.releaseAll();
99   isLogged = 0;
100   digitalWrite(LED, LOW);
101
102   message();
103}
104void message() {
105   display.clearDisplay();
106   u8g2_for_adafruit_gfx.setFont(u8g2_font_doomalpha04_tr);
107
108   if (isLogged == 0) {
109      u8g2_for_adafruit_gfx.drawStr(0, 32, "LOCKED");
110
111   } else {
112      u8g2_for_adafruit_gfx.drawStr(0, 32, "UNLOCKED");
113   }
114
115   display.display();
116   delay(1000);
117}
118String arrayToString(byte array[],
119  unsigned int len, char buffer[]) {
120   for (unsigned int i = 0; i < len; i++)
121  {
122      byte nib1 = (array[i] >> 4) & 0x0F;
123      byte nib2 = (array[i] >>
124  0) & 0x0F;
125      buffer[i * 2 + 0] = nib1 < 0xA ? '0' + nib1 : 'A' + nib1 - 0xA;
126
127      buffer[i * 2 + 1] = nib2 < 0xA ? '0' + nib2 : 'A' + nib2 - 0xA;
128   }
129
130   buffer[len * 2] = '\\0';
131   return buffer;
132}
133void getID() {
134   if
135  (!mfrc522.PICC_IsNewCardPresent()) {
136      return;
137   }
138   if (!mfrc522.PICC_ReadCardSerial())
139  {
140      return;
141   }
142   for (int i = 0; i < mfrc522.uid.size; i++) {
143
144      readCard[i] = mfrc522.uid.uidByte[i];
145   }
146   mfrc522.PICC_HaltA();
147}
148void
149  deleteCardInfo() {
150   for (int i = 0; i < mfrc522.uid.size; i++) {
151      readCard[i]
152  = "";
153   }
154   readid = "";
155}
156byte readDistance() {
157   return
158  ultrasonic.read(CM);
159}
160
161void countDown() {
162   if (start == 0 || i ==
163  0) {
164      start = millis();
165      i = 11;
166   }
167   long last;
168   while
169  (i > 0 && distance > x) {
170      last = millis();
171      distance = readDistance();
172
173      Apin.setNoiseThreshold(4);
174      x = map(Apin.read(), 0, 1023, 30, 200);
175
176      if (last - start >= 1500) {
177         display.clearDisplay();
178         u8g2_for_adafruit_gfx.setFont(u8g2_font_doomalpha04_tr);
179
180         u8g2_for_adafruit_gfx.drawStr(0, 32, "LOCKING IN");
181         u8g2_for_adafruit_gfx.setCursor(70,
182  32);
183         u8g2_for_adafruit_gfx.print(i - 1);
184         (i > 10) ? u8g2_for_adafruit_gfx.drawStr(85,
185  32, "sec") : u8g2_for_adafruit_gfx.drawStr(80, 32, "sec");
186         display.display();
187
188         i--;
189         if (i == 0) {
190            delay(1000);
191            winLock();
192
193            distance = 0;
194            start = 0;
195         }
196         start
197  += 1000;
198         last = millis();
199      }
200   }
201   distance = 0;
202
203   start = 0;
204   i = 0;
205}
206void loop() {
207   Apin.setNoiseThreshold(5);
208
209   x = map(Apin.read(), 0, 1023, 30, 200);
210   distance = readDistance();
211
212   if (distance > x && isLogged == 1) {
213      countDown();
214   } else {
215
216      if (lastx == x && millis() - lastPotChange > 2000) {
217         display.clearDisplay();
218
219         u8g2_for_adafruit_gfx.setFont(u8g2_font_doomalpha04_tr);
220         u8g2_for_adafruit_gfx.drawStr(0,
221  32, "STATUS OK");
222      } else if (lastx != x) {
223         display.clearDisplay();
224
225         u8g2_for_adafruit_gfx.setFont(u8g2_font_open_iconic_embedded_2x_t);
226
227         u8g2_for_adafruit_gfx.drawGlyph(0, 32, 0x0050);
228         u8g2_for_adafruit_gfx.setFont(u8g2_font_doomalpha04_tr);
229
230         u8g2_for_adafruit_gfx.setCursor(30, 31);
231         u8g2_for_adafruit_gfx.print(x);
232
233         if (x > 99) {
234            u8g2_for_adafruit_gfx.drawStr(55, 32, "CM");
235
236         } else {
237            u8g2_for_adafruit_gfx.drawStr(50, 32, "CM");
238
239         }
240         lastx = x;
241         lastPotChange = millis();
242      }
243
244      display.display();
245   }
246   getID();
247   readid = arrayToString(readCard,
248  4, str);
249   setPassword();
250   resetPassword();
251   if (password != ""
252  && password.length() > 2 && readid == card1 && isLogged == 0) {
253      loginCommand();
254
255   } else if (readid == card1 && isLogged == 1) {
256      winLock();
257   }
258
259   deleteCardInfo();
260}
261