Modular alarm system with motion detection!

Build your own alarm system with Arduino board, PIR motion sensor, siren, 4x4 keypad and oled display, with possibility to add more modules.

Sep 17, 2020

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security

Components and supplies

Arduino Mega 2560

PIR Motion Sensor (generic)

Apps and platforms

Arduino IDE

Project description

Code

Arduino_AlarmSystemCODE

arduino

Codo for alarm system with motion detection.

1#include <Keypad.h>
2#include <SoftwareSerial.h>
3#include <U8g2lib.h>
4#include  <SPI.h>
5#include <Wire.h>
6
7#define Password_Length 6
8
9char Data[Password_Length];
10char  Master[Password_Length] = "B1234;
11byte data_count = 0;
12char customKey;
13
14//  *** KEYPAD CONFIGURATION ***
15const byte ROWS = 4;
16const byte COLS = 4;
17
18char  hexaKeys [ROWS][COLS]={
19  {'1', '2', '3', 'A'},
20  {'4', '5', '6', 'B'},
21  {'7', '8', '9', 'C'},
22  {'*', '0', '#', 'D'}
23  }; // Keys on keypad
24
25byte  rowPins[ROWS] = {9,8,7,6};
26byte colPins[COLS] = {5,4,3,2};
27
28Keypad customKeypad  = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
29
30unsigned long  tiempo1, tiempo2;
31
32int siren     = 10;
33int signalPin = 11; // digitalni  pin
34int pirSensor = 12; // digitalni pin
35int led_Alarm = 13; // digitalni  pin
36
37int alarmSystem = 1; //ALARM IS OFF (0) OR ON (1)
38
39int senzorValue  = 0;
40
41int ledHigh = 0;
42
43int counter = 0;
44
45int state = 0;
46
47U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C  u8g2(U8G2_R0); 
48
49
50void setup() {
51
52  Serial.begin(9600);
53  u8g2.begin();
54  delay(5000);
55  Serial.println("Secutiry Alarm System");
56  pinMode(signalPin,  OUTPUT);
57  pinMode(pirSensor, INPUT);
58  pinMode(led_Alarm, OUTPUT);
59  pinMode(siren,  OUTPUT);
60  Serial.print("Alarmsystem has status:");
61  Serial.println(alarmSystem);
62  Serial.println("Program started");
63  delay(1999);  
64}
65
66void loop()  {
67
68  if (alarmSystem == 1){
69
70    if (state == 0){
71      digitalWrite(led_Alarm,  LOW);
72      digitalWrite(siren, LOW);
73      u8g2.clearBuffer(); 
74      u8g2.setFont(u8g2_font_courR10_tf);
75      u8g2.drawStr(8,10, "Alarm is");
76      u8g2.drawStr(8,24, "ON!");
77      u8g2.sendBuffer();
78      tiempo1 = millis(); // read the internal clock
79      tiempo2 = millis(); // read the internal clock
80      Serial.println("WE  ARE IN STATE 0");  
81      Event();
82      senzorValue = digitalRead(pirSensor);  // Sensor returns 1 - HIGH, if detects motion and 0 - LOW if does not detect motion
83                                            // Senzor nam vrne 1 - HIGH e je zaznal  gibanje in 0 - LOW e ni zaznal gibanja
84
85      if (senzorValue == HIGH){
86        state = 1;
87        u8g2.clearBuffer(); 
88        u8g2.setFont(u8g2_font_courR14_tf);
89        u8g2.drawStr(16,12, "MOTION");
90        u8g2.drawStr(16,28, "DETECTED!");
91        u8g2.sendBuffer();
92
93        while (tiempo1 < tiempo2 + 20000){
94          customKey = customKeypad.getKey();
95          if (customKey == '*'){
96            Event2();
97            tiempo1 = tiempo1 + 50000;
98            //Serial.println("SMO  TUKAJ 1");
99            Serial.println(tiempo1);
100            Serial.println(tiempo2);
101            delay(2000);
102          }
103          else{tiempo1 = millis(); 
104		  //Serial.println("SMO TUKAJ 2");
105		  }
106        }
107      }
108    }
109    
110    if (state == 1){  
111
112      // ADD COUNT DOWN FOR TURN ON ALARM  SYSTEM, IF PASSWORD IS   
113      // DODAMO COUNT DOWN ZA PRIIG ALARMA, E V TEM  ASU VNESE GESLO SE ALARM RESETIRA!
114      
115      tiempo2 = millis();
116      unsigned  long i = 5000;
117      tiempo2 = tiempo2 + i;
118      int x = 0;
119      int  y = 0;
120  
121      while (tiempo1 < tiempo2) // loop for counting down 30 seconds  if password is correct
122      {
123        //Serial.println("SMO TUKAJ 3");      
124        tiempo1 = millis();
125        x = (tiempo2 - tiempo1) / 1000;
126  
127        // if is oply for print on the display!
128        if ( y != x){
129          u8g2.clearBuffer();          
130          u8g2.setFont(u8g2_font_courR14_tf);
131          u8g2.drawStr(16,12, "Countdown: ");
132          u8g2.setCursor(40,32);
133          u8g2.print(x);
134          u8g2.sendBuffer();                              
135        }
136        y = x;          
137      }        
138
139      while (state  != 0){
140        //Serial.println("SMO TUKAJ 4");
141        u8g2.clearBuffer();          
142        u8g2.setFont(u8g2_font_courR14_tf);
143        u8g2.drawStr(16,12,  "Siren is");
144        u8g2.drawStr(16,32, "turnedOn");
145        u8g2.sendBuffer();   
146        digitalWrite(led_Alarm, HIGH);
147        digitalWrite(siren, HIGH);        
148        Event();
149      }
150      digitalWrite(led_Alarm, LOW);
151      digitalWrite(siren, LOW);  
152    }    
153  }
154
155  // ALARM SYSTEM IS  OFF (alarmSystem = 0) 
156  else {
157
158    //Serial.print("Counter je: ");
159    //Serial.println(counter);
160    //Serial.println("SMO TUKAJ 0");
161        
162    u8g2.clearBuffer(); 
163    u8g2.setFont(u8g2_font_courR10_tf);
164    u8g2.drawStr(8,10,  "Alarm is");
165    u8g2.drawStr(8,24, "turnedOff");
166    u8g2.setCursor(96,24);
167    u8g2.print(alarmSystem);
168    u8g2.sendBuffer();    
169    Event(); 
170  }
171}
172
173
174//////// ******* Methods ******* ////////  
175
176void PreverjanjeGesla(){
177
178  u8g2.clearBuffer();
179
180  if(!strcmp(Data, Master)){ // if password is correct,  e je geslo pravilno 
181
182    tiempo2 = millis();
183    unsigned long i = 0;
184
185    if (alarmSystem == 0){
186    i = 30000; 	// by default here is 30 seconds  time to move out from PIR sensor, 
187				// po defaultu bo tukaj 30 sekund,  da se lahko v miru umakne, ko bo alarmni sistem vkljuen 
188    }
189    else{
190    i = 5000;
191    }
192    tiempo2 = tiempo2 + i;
193    int x = 0;
194    int  y = 0;
195
196    while (tiempo1 < tiempo2) 	//	loop for countdown of 10 seconds  if password was typed correctly, 
197								// 	zanka za odtevanje 10  sekund e je geslo PRAVILNO
198    {      
199      digitalWrite(signalPin, HIGH);
200
201      tiempo1 = millis();
202      x = (tiempo2 - tiempo1) / 1000;
203
204      //  if is only for output on display
205	  // if je samo za izpis na zaslon!
206      if  ( y != x){
207        u8g2.clearBuffer();          
208        u8g2.setFont(u8g2_font_courR14_tf);
209        u8g2.drawStr(16,12, "Countdown: ");
210        u8g2.setCursor(40,32);
211        u8g2.print(x);
212        u8g2.sendBuffer();                              
213      }
214      y = x;          
215    }
216    
217    digitalWrite(signalPin,  LOW);
218    u8g2.clearBuffer();
219    
220    if (alarmSystem == 1){
221      alarmSystem  = 0; // Alarm turns off
222      state = 0;
223    }
224    else{
225      alarmSystem  = 1; // Alarm turns on
226      state = 0;     
227    }    
228  }
229  
230  else{
231    while ( ledHigh < 5 ){
232      Serial.println("Password is incorect!");
233      u8g2.setFont(u8g2_font_courR10_tf);
234      u8g2.drawStr(24,14, "False");
235      u8g2.drawStr(24,30, "Password!");
236      u8g2.sendBuffer();
237      digitalWrite(signalPin,  HIGH);
238      delay(500);
239      digitalWrite(signalPin, LOW);
240      delay(500);
241      ledHigh++;
242    }
243    counter = 0;
244    ledHigh = 0;
245  }
246  
247  u8g2.clearBuffer();
248  clearData();  
249}
250
251void Event(){
252  customKey  = customKeypad.getKey();
253  if (customKey == '*'){
254    u8g2.clearBuffer();  
255    u8g2.setFont(u8g2_font_courR10_tf);
256    u8g2.drawStr(8,10, "*pressed"  );    
257    u8g2.drawStr(8,22, "Typepassword!");
258    u8g2.sendBuffer(); 
259    counter = 1;
260    tiempo2 = millis();
261
262    unsigned long i = 10000;  
263    tiempo2 = tiempo2 + i; 
264  }
265
266  while (counter == 1){    
267    tiempo1  = millis();
268    customKey = customKeypad.getKey(); 
269    if (customKey){
270      Data[data_count] = customKey; 
271      data_count++; 
272    }
273    if(tiempo1  > tiempo2) {
274    // A sentence where we check whether we have entered the password  within 10 seconds after pressing the * key. 
275	// If the password has not been  entered within 10 seconds, the counter is reset to 0.
276    // This means that  the alarm system is switched off.      
277      counter = 0;
278      Serial.print("Counter:");
279      Serial.println(counter);
280      Serial.println("tiempo1:");
281      Serial.println(tiempo1);
282      Serial.println("tiempo2:");
283      Serial.println(tiempo2);           
284    }
285    if(data_count == Password_Length-1){PreverjanjeGesla();}
286  }
287}
288
289void  Event2(){
290
291  u8g2.clearBuffer(); 
292  u8g2.setFont(u8g2_font_courR10_tf);
293  u8g2.drawStr(8,10, "*pressed");    
294  u8g2.drawStr(8,22, "Typepassword!");
295  u8g2.sendBuffer(); 
296  counter = 1;
297  tiempo2 = millis(); // in the variable  we get the current time tiempo2
298
299  unsigned long i = 10000; 
300  tiempo2  = tiempo2 + i; // we add 10s to the tiempo, this time is later compared to tiempo1,  whose time increases in the if statement (tiempo1> tiempo2)
301
302  while (counter  == 1){    
303    tiempo1 = millis();
304    customKey = customKeypad.getKey();  // When the * key has already been pressed, the following key presses up to length  of six are recorded in Data.
305    if (customKey){
306      Data[data_count] =  customKey; 
307      data_count++; 
308    }
309    if(tiempo1 > tiempo2) {
310    // A sentence where we check whether we have entered the password within 10  seconds after pressing the * key. If the password has not been entered within 10  seconds, the counter is reset to 0.
311    // This means that the alarm system is  switched off.  
312      counter = 0;
313      u8g2.clearBuffer(); 
314      u8g2.setFont(u8g2_font_courR10_tf);
315      u8g2.drawStr(2,10, "Passwordwasnot");    
316      u8g2.drawStr(2,22, "typed  in a timely manner");
317      u8g2.sendBuffer();
318      delay(3000);                      
319    }
320    if(data_count == Password_Length-1){PreverjanjeGesla();}
321  }
322}  
323
324void clearData()
325{
326  while(data_count != 0)
327  {
328    Data[data_count--]  = 0;
329  }
330  return;
331}

#include <Keypad.h>
#include <SoftwareSerial.h>
#include <U8g2lib.h>
#include  <SPI.h>
#include <Wire.h>

#define Password_Length 6

char Data[Password_Length];
char  Master[Password_Length] = "B1234;
byte data_count = 0;
char customKey;

//  *** KEYPAD CONFIGURATION ***
const byte ROWS = 4;
const byte COLS = 4;

char  hexaKeys [ROWS][COLS]={
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
  }; // Keys on keypad

byte  rowPins[ROWS] = {9,8,7,6};
byte colPins[COLS] = {5,4,3,2};

Keypad customKeypad  = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

unsigned long  tiempo1, tiempo2;

int siren     = 10;
int signalPin = 11; // digitalni  pin
int pirSensor = 12; // digitalni pin
int led_Alarm = 13; // digitalni  pin

int alarmSystem = 1; //ALARM IS OFF (0) OR ON (1)

int senzorValue  = 0;

int ledHigh = 0;

int counter = 0;

int state = 0;

U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C  u8g2(U8G2_R0); 


void setup() {

  Serial.begin(9600);
  u8g2.begin();
  delay(5000);
  Serial.println("Secutiry Alarm System");
  pinMode(signalPin,  OUTPUT);
  pinMode(pirSensor, INPUT);
  pinMode(led_Alarm, OUTPUT);
  pinMode(siren,  OUTPUT);
  Serial.print("Alarmsystem has status:");
  Serial.println(alarmSystem);
  Serial.println("Program started");
  delay(1999);  
}

void loop()  {

  if (alarmSystem == 1){

    if (state == 0){
      digitalWrite(led_Alarm,  LOW);
      digitalWrite(siren, LOW);
      u8g2.clearBuffer(); 
      u8g2.setFont(u8g2_font_courR10_tf);
      u8g2.drawStr(8,10, "Alarm is");
      u8g2.drawStr(8,24, "ON!");
      u8g2.sendBuffer();
      tiempo1 = millis(); // read the internal clock
      tiempo2 = millis(); // read the internal clock
      Serial.println("WE  ARE IN STATE 0");  
      Event();
      senzorValue = digitalRead(pirSensor);  // Sensor returns 1 - HIGH, if detects motion and 0 - LOW if does not detect motion
                                            // Senzor nam vrne 1 - HIGH e je zaznal  gibanje in 0 - LOW e ni zaznal gibanja

      if (senzorValue == HIGH){
        state = 1;
        u8g2.clearBuffer(); 
        u8g2.setFont(u8g2_font_courR14_tf);
        u8g2.drawStr(16,12, "MOTION");
        u8g2.drawStr(16,28, "DETECTED!");
        u8g2.sendBuffer();

        while (tiempo1 < tiempo2 + 20000){
          customKey = customKeypad.getKey();
          if (customKey == '*'){
            Event2();
            tiempo1 = tiempo1 + 50000;
            //Serial.println("SMO  TUKAJ 1");
            Serial.println(tiempo1);
            Serial.println(tiempo2);
            delay(2000);
          }
          else{tiempo1 = millis(); 
		  //Serial.println("SMO TUKAJ 2");
		  }
        }
      }
    }
    
    if (state == 1){  

      // ADD COUNT DOWN FOR TURN ON ALARM  SYSTEM, IF PASSWORD IS   
      // DODAMO COUNT DOWN ZA PRIIG ALARMA, E V TEM  ASU VNESE GESLO SE ALARM RESETIRA!
      
      tiempo2 = millis();
      unsigned  long i = 5000;
      tiempo2 = tiempo2 + i;
      int x = 0;
      int  y = 0;
  
      while (tiempo1 < tiempo2) // loop for counting down 30 seconds  if password is correct
      {
        //Serial.println("SMO TUKAJ 3");      
        tiempo1 = millis();
        x = (tiempo2 - tiempo1) / 1000;
  
        // if is oply for print on the display!
        if ( y != x){
          u8g2.clearBuffer();          
          u8g2.setFont(u8g2_font_courR14_tf);
          u8g2.drawStr(16,12, "Countdown: ");
          u8g2.setCursor(40,32);
          u8g2.print(x);
          u8g2.sendBuffer();                              
        }
        y = x;          
      }        

      while (state  != 0){
        //Serial.println("SMO TUKAJ 4");
        u8g2.clearBuffer();          
        u8g2.setFont(u8g2_font_courR14_tf);
        u8g2.drawStr(16,12,  "Siren is");
        u8g2.drawStr(16,32, "turnedOn");
        u8g2.sendBuffer();   
        digitalWrite(led_Alarm, HIGH);
        digitalWrite(siren, HIGH);        
        Event();
      }
      digitalWrite(led_Alarm, LOW);
      digitalWrite(siren, LOW);  
    }    
  }

  // ALARM SYSTEM IS  OFF (alarmSystem = 0) 
  else {

    //Serial.print("Counter je: ");
    //Serial.println(counter);
    //Serial.println("SMO TUKAJ 0");
        
    u8g2.clearBuffer(); 
    u8g2.setFont(u8g2_font_courR10_tf);
    u8g2.drawStr(8,10,  "Alarm is");
    u8g2.drawStr(8,24, "turnedOff");
    u8g2.setCursor(96,24);
    u8g2.print(alarmSystem);
    u8g2.sendBuffer();    
    Event(); 
  }
}


//////// ******* Methods ******* ////////  

void PreverjanjeGesla(){

  u8g2.clearBuffer();

  if(!strcmp(Data, Master)){ // if password is correct,  e je geslo pravilno 

    tiempo2 = millis();
    unsigned long i = 0;

    if (alarmSystem == 0){
    i = 30000; 	// by default here is 30 seconds  time to move out from PIR sensor, 
				// po defaultu bo tukaj 30 sekund,  da se lahko v miru umakne, ko bo alarmni sistem vkljuen 
    }
    else{
    i = 5000;
    }
    tiempo2 = tiempo2 + i;
    int x = 0;
    int  y = 0;

    while (tiempo1 < tiempo2) 	//	loop for countdown of 10 seconds  if password was typed correctly, 
								// 	zanka za odtevanje 10  sekund e je geslo PRAVILNO
    {      
      digitalWrite(signalPin, HIGH);

      tiempo1 = millis();
      x = (tiempo2 - tiempo1) / 1000;

      //  if is only for output on display
	  // if je samo za izpis na zaslon!
      if  ( y != x){
        u8g2.clearBuffer();          
        u8g2.setFont(u8g2_font_courR14_tf);
        u8g2.drawStr(16,12, "Countdown: ");
        u8g2.setCursor(40,32);
        u8g2.print(x);
        u8g2.sendBuffer();                              
      }
      y = x;          
    }
    
    digitalWrite(signalPin,  LOW);
    u8g2.clearBuffer();
    
    if (alarmSystem == 1){
      alarmSystem  = 0; // Alarm turns off
      state = 0;
    }
    else{
      alarmSystem  = 1; // Alarm turns on
      state = 0;     
    }    
  }
  
  else{
    while ( ledHigh < 5 ){
      Serial.println("Password is incorect!");
      u8g2.setFont(u8g2_font_courR10_tf);
      u8g2.drawStr(24,14, "False");
      u8g2.drawStr(24,30, "Password!");
      u8g2.sendBuffer();
      digitalWrite(signalPin,  HIGH);
      delay(500);
      digitalWrite(signalPin, LOW);
      delay(500);
      ledHigh++;
    }
    counter = 0;
    ledHigh = 0;
  }
  
  u8g2.clearBuffer();
  clearData();  
}

void Event(){
  customKey  = customKeypad.getKey();
  if (customKey == '*'){
    u8g2.clearBuffer();  
    u8g2.setFont(u8g2_font_courR10_tf);
    u8g2.drawStr(8,10, "*pressed"  );    
    u8g2.drawStr(8,22, "Typepassword!");
    u8g2.sendBuffer(); 
    counter = 1;
    tiempo2 = millis();

    unsigned long i = 10000;  
    tiempo2 = tiempo2 + i; 
  }

  while (counter == 1){    
    tiempo1  = millis();
    customKey = customKeypad.getKey(); 
    if (customKey){
      Data[data_count] = customKey; 
      data_count++; 
    }
    if(tiempo1  > tiempo2) {
    // A sentence where we check whether we have entered the password  within 10 seconds after pressing the * key. 
	// If the password has not been  entered within 10 seconds, the counter is reset to 0.
    // This means that  the alarm system is switched off.      
      counter = 0;
      Serial.print("Counter:");
      Serial.println(counter);
      Serial.println("tiempo1:");
      Serial.println(tiempo1);
      Serial.println("tiempo2:");
      Serial.println(tiempo2);           
    }
    if(data_count == Password_Length-1){PreverjanjeGesla();}
  }
}

void  Event2(){

  u8g2.clearBuffer(); 
  u8g2.setFont(u8g2_font_courR10_tf);
  u8g2.drawStr(8,10, "*pressed");    
  u8g2.drawStr(8,22, "Typepassword!");
  u8g2.sendBuffer(); 
  counter = 1;
  tiempo2 = millis(); // in the variable  we get the current time tiempo2

  unsigned long i = 10000; 
  tiempo2  = tiempo2 + i; // we add 10s to the tiempo, this time is later compared to tiempo1,  whose time increases in the if statement (tiempo1> tiempo2)

  while (counter  == 1){    
    tiempo1 = millis();
    customKey = customKeypad.getKey();  // When the * key has already been pressed, the following key presses up to length  of six are recorded in Data.
    if (customKey){
      Data[data_count] =  customKey; 
      data_count++; 
    }
    if(tiempo1 > tiempo2) {
    // A sentence where we check whether we have entered the password within 10  seconds after pressing the * key. If the password has not been entered within 10  seconds, the counter is reset to 0.
    // This means that the alarm system is  switched off.  
      counter = 0;
      u8g2.clearBuffer(); 
      u8g2.setFont(u8g2_font_courR10_tf);
      u8g2.drawStr(2,10, "Passwordwasnot");    
      u8g2.drawStr(2,22, "typed  in a timely manner");
      u8g2.sendBuffer();
      delay(3000);                      
    }
    if(data_count == Password_Length-1){PreverjanjeGesla();}
  }
}  

void clearData()
{
  while(data_count != 0)
  {
    Data[data_count--]  = 0;
  }
  return;
}

Arduino_AlarmSystemCODE

arduino

Codo for alarm system with motion detection.

1#include <Keypad.h>
2#include <SoftwareSerial.h>
3#include <U8g2lib.h>
4#include   <SPI.h>
5#include <Wire.h>
6
7#define Password_Length 6
8
9char Data[Password_Length];
10char   Master[Password_Length] = "B1234;
11byte data_count = 0;
12char customKey;
13
14//   *** KEYPAD CONFIGURATION ***
15const byte ROWS = 4;
16const byte COLS = 4;
17
18char   hexaKeys [ROWS][COLS]={
19  {'1', '2', '3', 'A'},
20  {'4', '5', '6', 'B'},
21   {'7', '8', '9', 'C'},
22  {'*', '0', '#', 'D'}
23  }; // Keys on keypad
24
25byte   rowPins[ROWS] = {9,8,7,6};
26byte colPins[COLS] = {5,4,3,2};
27
28Keypad customKeypad   = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
29
30unsigned long   tiempo1, tiempo2;
31
32int siren     = 10;
33int signalPin = 11; // digitalni   pin
34int pirSensor = 12; // digitalni pin
35int led_Alarm = 13; // digitalni   pin
36
37int alarmSystem = 1; //ALARM IS OFF (0) OR ON (1)
38
39int senzorValue   = 0;
40
41int ledHigh = 0;
42
43int counter = 0;
44
45int state = 0;
46
47U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C   u8g2(U8G2_R0); 
48
49
50void setup() {
51
52  Serial.begin(9600);
53  u8g2.begin();
54   delay(5000);
55  Serial.println("Secutiry Alarm System");
56  pinMode(signalPin,   OUTPUT);
57  pinMode(pirSensor, INPUT);
58  pinMode(led_Alarm, OUTPUT);
59  pinMode(siren,   OUTPUT);
60  Serial.print("Alarmsystem has status:");
61  Serial.println(alarmSystem);
62   Serial.println("Program started");
63  delay(1999);  
64}
65
66void loop()   {
67
68  if (alarmSystem == 1){
69
70    if (state == 0){
71      digitalWrite(led_Alarm,   LOW);
72      digitalWrite(siren, LOW);
73      u8g2.clearBuffer(); 
74      u8g2.setFont(u8g2_font_courR10_tf);
75       u8g2.drawStr(8,10, "Alarm is");
76      u8g2.drawStr(8,24, "ON!");
77       u8g2.sendBuffer();
78      tiempo1 = millis(); // read the internal clock
79       tiempo2 = millis(); // read the internal clock
80      Serial.println("WE   ARE IN STATE 0");  
81      Event();
82      senzorValue = digitalRead(pirSensor);   // Sensor returns 1 - HIGH, if detects motion and 0 - LOW if does not detect motion
83                                             // Senzor nam vrne 1 - HIGH e je zaznal   gibanje in 0 - LOW e ni zaznal gibanja
84
85      if (senzorValue == HIGH){
86         state = 1;
87        u8g2.clearBuffer(); 
88        u8g2.setFont(u8g2_font_courR14_tf);
89         u8g2.drawStr(16,12, "MOTION");
90        u8g2.drawStr(16,28, "DETECTED!");
91         u8g2.sendBuffer();
92
93        while (tiempo1 < tiempo2 + 20000){
94           customKey = customKeypad.getKey();
95          if (customKey == '*'){
96             Event2();
97            tiempo1 = tiempo1 + 50000;
98            //Serial.println("SMO   TUKAJ 1");
99            Serial.println(tiempo1);
100            Serial.println(tiempo2);
101             delay(2000);
102          }
103          else{tiempo1 = millis(); 
104		   //Serial.println("SMO TUKAJ 2");
105		  }
106        }
107      }
108    }
109     
110    if (state == 1){  
111
112      // ADD COUNT DOWN FOR TURN ON ALARM   SYSTEM, IF PASSWORD IS   
113      // DODAMO COUNT DOWN ZA PRIIG ALARMA, E V TEM   ASU VNESE GESLO SE ALARM RESETIRA!
114      
115      tiempo2 = millis();
116      unsigned   long i = 5000;
117      tiempo2 = tiempo2 + i;
118      int x = 0;
119      int   y = 0;
120  
121      while (tiempo1 < tiempo2) // loop for counting down 30 seconds   if password is correct
122      {
123        //Serial.println("SMO TUKAJ 3");       
124        tiempo1 = millis();
125        x = (tiempo2 - tiempo1) / 1000;
126   
127        // if is oply for print on the display!
128        if ( y != x){
129           u8g2.clearBuffer();          
130          u8g2.setFont(u8g2_font_courR14_tf);
131           u8g2.drawStr(16,12, "Countdown: ");
132          u8g2.setCursor(40,32);
133           u8g2.print(x);
134          u8g2.sendBuffer();                              
135         }
136        y = x;          
137      }        
138
139      while (state   != 0){
140        //Serial.println("SMO TUKAJ 4");
141        u8g2.clearBuffer();           
142        u8g2.setFont(u8g2_font_courR14_tf);
143        u8g2.drawStr(16,12,   "Siren is");
144        u8g2.drawStr(16,32, "turnedOn");
145        u8g2.sendBuffer();    
146        digitalWrite(led_Alarm, HIGH);
147        digitalWrite(siren, HIGH);         
148        Event();
149      }
150      digitalWrite(led_Alarm, LOW);
151       digitalWrite(siren, LOW);  
152    }    
153  }
154
155  // ALARM SYSTEM IS   OFF (alarmSystem = 0) 
156  else {
157
158    //Serial.print("Counter je: ");
159     //Serial.println(counter);
160    //Serial.println("SMO TUKAJ 0");
161        
162     u8g2.clearBuffer(); 
163    u8g2.setFont(u8g2_font_courR10_tf);
164    u8g2.drawStr(8,10,   "Alarm is");
165    u8g2.drawStr(8,24, "turnedOff");
166    u8g2.setCursor(96,24);
167     u8g2.print(alarmSystem);
168    u8g2.sendBuffer();    
169    Event(); 
170   }
171}
172
173
174//////// ******* Methods ******* ////////  
175
176void PreverjanjeGesla(){
177
178   u8g2.clearBuffer();
179
180  if(!strcmp(Data, Master)){ // if password is correct,   e je geslo pravilno 
181
182    tiempo2 = millis();
183    unsigned long i = 0;
184
185     if (alarmSystem == 0){
186    i = 30000; 	// by default here is 30 seconds   time to move out from PIR sensor, 
187				// po defaultu bo tukaj 30 sekund,   da se lahko v miru umakne, ko bo alarmni sistem vkljuen 
188    }
189    else{
190     i = 5000;
191    }
192    tiempo2 = tiempo2 + i;
193    int x = 0;
194    int   y = 0;
195
196    while (tiempo1 < tiempo2) 	//	loop for countdown of 10 seconds   if password was typed correctly, 
197								// 	zanka za odtevanje 10   sekund e je geslo PRAVILNO
198    {      
199      digitalWrite(signalPin, HIGH);
200
201       tiempo1 = millis();
202      x = (tiempo2 - tiempo1) / 1000;
203
204      //   if is only for output on display
205	  // if je samo za izpis na zaslon!
206      if   ( y != x){
207        u8g2.clearBuffer();          
208        u8g2.setFont(u8g2_font_courR14_tf);
209         u8g2.drawStr(16,12, "Countdown: ");
210        u8g2.setCursor(40,32);
211         u8g2.print(x);
212        u8g2.sendBuffer();                              
213       }
214      y = x;          
215    }
216    
217    digitalWrite(signalPin,   LOW);
218    u8g2.clearBuffer();
219    
220    if (alarmSystem == 1){
221      alarmSystem   = 0; // Alarm turns off
222      state = 0;
223    }
224    else{
225      alarmSystem   = 1; // Alarm turns on
226      state = 0;     
227    }    
228  }
229  
230  else{
231     while ( ledHigh < 5 ){
232      Serial.println("Password is incorect!");
233       u8g2.setFont(u8g2_font_courR10_tf);
234      u8g2.drawStr(24,14, "False");
235       u8g2.drawStr(24,30, "Password!");
236      u8g2.sendBuffer();
237      digitalWrite(signalPin,   HIGH);
238      delay(500);
239      digitalWrite(signalPin, LOW);
240      delay(500);
241       ledHigh++;
242    }
243    counter = 0;
244    ledHigh = 0;
245  }
246  
247   u8g2.clearBuffer();
248  clearData();  
249}
250
251void Event(){
252  customKey   = customKeypad.getKey();
253  if (customKey == '*'){
254    u8g2.clearBuffer();   
255    u8g2.setFont(u8g2_font_courR10_tf);
256    u8g2.drawStr(8,10, "*pressed"   );    
257    u8g2.drawStr(8,22, "Typepassword!");
258    u8g2.sendBuffer(); 
259     counter = 1;
260    tiempo2 = millis();
261
262    unsigned long i = 10000;   
263    tiempo2 = tiempo2 + i; 
264  }
265
266  while (counter == 1){    
267    tiempo1   = millis();
268    customKey = customKeypad.getKey(); 
269    if (customKey){
270       Data[data_count] = customKey; 
271      data_count++; 
272    }
273    if(tiempo1   > tiempo2) {
274    // A sentence where we check whether we have entered the password   within 10 seconds after pressing the * key. 
275	// If the password has not been   entered within 10 seconds, the counter is reset to 0.
276    // This means that   the alarm system is switched off.      
277      counter = 0;
278      Serial.print("Counter:");
279       Serial.println(counter);
280      Serial.println("tiempo1:");
281      Serial.println(tiempo1);
282       Serial.println("tiempo2:");
283      Serial.println(tiempo2);           
284     }
285    if(data_count == Password_Length-1){PreverjanjeGesla();}
286  }
287}
288
289void   Event2(){
290
291  u8g2.clearBuffer(); 
292  u8g2.setFont(u8g2_font_courR10_tf);
293   u8g2.drawStr(8,10, "*pressed");    
294  u8g2.drawStr(8,22, "Typepassword!");
295   u8g2.sendBuffer(); 
296  counter = 1;
297  tiempo2 = millis(); // in the variable   we get the current time tiempo2
298
299  unsigned long i = 10000; 
300  tiempo2   = tiempo2 + i; // we add 10s to the tiempo, this time is later compared to tiempo1,   whose time increases in the if statement (tiempo1> tiempo2)
301
302  while (counter   == 1){    
303    tiempo1 = millis();
304    customKey = customKeypad.getKey();   // When the * key has already been pressed, the following key presses up to length   of six are recorded in Data.
305    if (customKey){
306      Data[data_count] =   customKey; 
307      data_count++; 
308    }
309    if(tiempo1 > tiempo2) {
310     // A sentence where we check whether we have entered the password within 10   seconds after pressing the * key. If the password has not been entered within 10   seconds, the counter is reset to 0.
311    // This means that the alarm system is   switched off.  
312      counter = 0;
313      u8g2.clearBuffer(); 
314      u8g2.setFont(u8g2_font_courR10_tf);
315       u8g2.drawStr(2,10, "Passwordwasnot");    
316      u8g2.drawStr(2,22, "typed   in a timely manner");
317      u8g2.sendBuffer();
318      delay(3000);                      
319     }
320    if(data_count == Password_Length-1){PreverjanjeGesla();}
321  }
322}   
323
324void clearData()
325{
326  while(data_count != 0)
327  {
328    Data[data_count--]   = 0;
329  }
330  return;
331}

#include <Keypad.h>
#include <SoftwareSerial.h>
#include <U8g2lib.h>
#include   <SPI.h>
#include <Wire.h>

#define Password_Length 6

char Data[Password_Length];
char   Master[Password_Length] = "B1234;
byte data_count = 0;
char customKey;

//   *** KEYPAD CONFIGURATION ***
const byte ROWS = 4;
const byte COLS = 4;

char   hexaKeys [ROWS][COLS]={
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
   {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
  }; // Keys on keypad

byte   rowPins[ROWS] = {9,8,7,6};
byte colPins[COLS] = {5,4,3,2};

Keypad customKeypad   = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

unsigned long   tiempo1, tiempo2;

int siren     = 10;
int signalPin = 11; // digitalni   pin
int pirSensor = 12; // digitalni pin
int led_Alarm = 13; // digitalni   pin

int alarmSystem = 1; //ALARM IS OFF (0) OR ON (1)

int senzorValue   = 0;

int ledHigh = 0;

int counter = 0;

int state = 0;

U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C   u8g2(U8G2_R0); 


void setup() {

  Serial.begin(9600);
  u8g2.begin();
   delay(5000);
  Serial.println("Secutiry Alarm System");
  pinMode(signalPin,   OUTPUT);
  pinMode(pirSensor, INPUT);
  pinMode(led_Alarm, OUTPUT);
  pinMode(siren,   OUTPUT);
  Serial.print("Alarmsystem has status:");
  Serial.println(alarmSystem);
   Serial.println("Program started");
  delay(1999);  
}

void loop()   {

  if (alarmSystem == 1){

    if (state == 0){
      digitalWrite(led_Alarm,   LOW);
      digitalWrite(siren, LOW);
      u8g2.clearBuffer(); 
      u8g2.setFont(u8g2_font_courR10_tf);
       u8g2.drawStr(8,10, "Alarm is");
      u8g2.drawStr(8,24, "ON!");
       u8g2.sendBuffer();
      tiempo1 = millis(); // read the internal clock
       tiempo2 = millis(); // read the internal clock
      Serial.println("WE   ARE IN STATE 0");  
      Event();
      senzorValue = digitalRead(pirSensor);   // Sensor returns 1 - HIGH, if detects motion and 0 - LOW if does not detect motion
                                             // Senzor nam vrne 1 - HIGH e je zaznal   gibanje in 0 - LOW e ni zaznal gibanja

      if (senzorValue == HIGH){
         state = 1;
        u8g2.clearBuffer(); 
        u8g2.setFont(u8g2_font_courR14_tf);
         u8g2.drawStr(16,12, "MOTION");
        u8g2.drawStr(16,28, "DETECTED!");
         u8g2.sendBuffer();

        while (tiempo1 < tiempo2 + 20000){
           customKey = customKeypad.getKey();
          if (customKey == '*'){
             Event2();
            tiempo1 = tiempo1 + 50000;
            //Serial.println("SMO   TUKAJ 1");
            Serial.println(tiempo1);
            Serial.println(tiempo2);
             delay(2000);
          }
          else{tiempo1 = millis(); 
		   //Serial.println("SMO TUKAJ 2");
		  }
        }
      }
    }
     
    if (state == 1){  

      // ADD COUNT DOWN FOR TURN ON ALARM   SYSTEM, IF PASSWORD IS   
      // DODAMO COUNT DOWN ZA PRIIG ALARMA, E V TEM   ASU VNESE GESLO SE ALARM RESETIRA!
      
      tiempo2 = millis();
      unsigned   long i = 5000;
      tiempo2 = tiempo2 + i;
      int x = 0;
      int   y = 0;
  
      while (tiempo1 < tiempo2) // loop for counting down 30 seconds   if password is correct
      {
        //Serial.println("SMO TUKAJ 3");       
        tiempo1 = millis();
        x = (tiempo2 - tiempo1) / 1000;
   
        // if is oply for print on the display!
        if ( y != x){
           u8g2.clearBuffer();          
          u8g2.setFont(u8g2_font_courR14_tf);
           u8g2.drawStr(16,12, "Countdown: ");
          u8g2.setCursor(40,32);
           u8g2.print(x);
          u8g2.sendBuffer();                              
         }
        y = x;          
      }        

      while (state   != 0){
        //Serial.println("SMO TUKAJ 4");
        u8g2.clearBuffer();           
        u8g2.setFont(u8g2_font_courR14_tf);
        u8g2.drawStr(16,12,   "Siren is");
        u8g2.drawStr(16,32, "turnedOn");
        u8g2.sendBuffer();    
        digitalWrite(led_Alarm, HIGH);
        digitalWrite(siren, HIGH);         
        Event();
      }
      digitalWrite(led_Alarm, LOW);
       digitalWrite(siren, LOW);  
    }    
  }

  // ALARM SYSTEM IS   OFF (alarmSystem = 0) 
  else {

    //Serial.print("Counter je: ");
     //Serial.println(counter);
    //Serial.println("SMO TUKAJ 0");
        
     u8g2.clearBuffer(); 
    u8g2.setFont(u8g2_font_courR10_tf);
    u8g2.drawStr(8,10,   "Alarm is");
    u8g2.drawStr(8,24, "turnedOff");
    u8g2.setCursor(96,24);
     u8g2.print(alarmSystem);
    u8g2.sendBuffer();    
    Event(); 
   }
}


//////// ******* Methods ******* ////////  

void PreverjanjeGesla(){

   u8g2.clearBuffer();

  if(!strcmp(Data, Master)){ // if password is correct,   e je geslo pravilno 

    tiempo2 = millis();
    unsigned long i = 0;

     if (alarmSystem == 0){
    i = 30000; 	// by default here is 30 seconds   time to move out from PIR sensor, 
				// po defaultu bo tukaj 30 sekund,   da se lahko v miru umakne, ko bo alarmni sistem vkljuen 
    }
    else{
     i = 5000;
    }
    tiempo2 = tiempo2 + i;
    int x = 0;
    int   y = 0;

    while (tiempo1 < tiempo2) 	//	loop for countdown of 10 seconds   if password was typed correctly, 
								// 	zanka za odtevanje 10   sekund e je geslo PRAVILNO
    {      
      digitalWrite(signalPin, HIGH);

       tiempo1 = millis();
      x = (tiempo2 - tiempo1) / 1000;

      //   if is only for output on display
	  // if je samo za izpis na zaslon!
      if   ( y != x){
        u8g2.clearBuffer();          
        u8g2.setFont(u8g2_font_courR14_tf);
         u8g2.drawStr(16,12, "Countdown: ");
        u8g2.setCursor(40,32);
         u8g2.print(x);
        u8g2.sendBuffer();                              
       }
      y = x;          
    }
    
    digitalWrite(signalPin,   LOW);
    u8g2.clearBuffer();
    
    if (alarmSystem == 1){
      alarmSystem   = 0; // Alarm turns off
      state = 0;
    }
    else{
      alarmSystem   = 1; // Alarm turns on
      state = 0;     
    }    
  }
  
  else{
     while ( ledHigh < 5 ){
      Serial.println("Password is incorect!");
       u8g2.setFont(u8g2_font_courR10_tf);
      u8g2.drawStr(24,14, "False");
       u8g2.drawStr(24,30, "Password!");
      u8g2.sendBuffer();
      digitalWrite(signalPin,   HIGH);
      delay(500);
      digitalWrite(signalPin, LOW);
      delay(500);
       ledHigh++;
    }
    counter = 0;
    ledHigh = 0;
  }
  
   u8g2.clearBuffer();
  clearData();  
}

void Event(){
  customKey   = customKeypad.getKey();
  if (customKey == '*'){
    u8g2.clearBuffer();   
    u8g2.setFont(u8g2_font_courR10_tf);
    u8g2.drawStr(8,10, "*pressed"   );    
    u8g2.drawStr(8,22, "Typepassword!");
    u8g2.sendBuffer(); 
     counter = 1;
    tiempo2 = millis();

    unsigned long i = 10000;   
    tiempo2 = tiempo2 + i; 
  }

  while (counter == 1){    
    tiempo1   = millis();
    customKey = customKeypad.getKey(); 
    if (customKey){
       Data[data_count] = customKey; 
      data_count++; 
    }
    if(tiempo1   > tiempo2) {
    // A sentence where we check whether we have entered the password   within 10 seconds after pressing the * key. 
	// If the password has not been   entered within 10 seconds, the counter is reset to 0.
    // This means that   the alarm system is switched off.      
      counter = 0;
      Serial.print("Counter:");
       Serial.println(counter);
      Serial.println("tiempo1:");
      Serial.println(tiempo1);
       Serial.println("tiempo2:");
      Serial.println(tiempo2);           
     }
    if(data_count == Password_Length-1){PreverjanjeGesla();}
  }
}

void   Event2(){

  u8g2.clearBuffer(); 
  u8g2.setFont(u8g2_font_courR10_tf);
   u8g2.drawStr(8,10, "*pressed");    
  u8g2.drawStr(8,22, "Typepassword!");
   u8g2.sendBuffer(); 
  counter = 1;
  tiempo2 = millis(); // in the variable   we get the current time tiempo2

  unsigned long i = 10000; 
  tiempo2   = tiempo2 + i; // we add 10s to the tiempo, this time is later compared to tiempo1,   whose time increases in the if statement (tiempo1> tiempo2)

  while (counter   == 1){    
    tiempo1 = millis();
    customKey = customKeypad.getKey();   // When the * key has already been pressed, the following key presses up to length   of six are recorded in Data.
    if (customKey){
      Data[data_count] =   customKey; 
      data_count++; 
    }
    if(tiempo1 > tiempo2) {
     // A sentence where we check whether we have entered the password within 10   seconds after pressing the * key. If the password has not been entered within 10   seconds, the counter is reset to 0.
    // This means that the alarm system is   switched off.  
      counter = 0;
      u8g2.clearBuffer(); 
      u8g2.setFont(u8g2_font_courR10_tf);
       u8g2.drawStr(2,10, "Passwordwasnot");    
      u8g2.drawStr(2,22, "typed   in a timely manner");
      u8g2.sendBuffer();
      delay(3000);                      
     }
    if(data_count == Password_Length-1){PreverjanjeGesla();}
  }
}   

void clearData()
{
  while(data_count != 0)
  {
    Data[data_count--]   = 0;
  }
  return;
}

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