Password-Protected Door System

This project is safety-related.

Feb 25, 2018

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Components and supplies

Jumper wires (generic)

RobotGeek 180 Degree Robot Servo

Buzzer

Keypad

Arduino UNO

RobotGeek 4 Line I2C LCD Control Panel

Breadboard (generic)

Apps and platforms

Arduino IDE

Project description

Code

Passworder

arduino

1#include <Servo.h>
2Servo sg90;
3#include <Password.h>
4#include   <Keypad.h>
5#include <LiquidCrystal_I2C.h>
6Password password = Password("12AB");   
7int dlugosc = 4;
8LiquidCrystal_I2C lcd(0x27 , 16 , 2);
9
10int buzzer   = 13;
11char tus; // number of clicks
12const byte satir = 4; 
13const byte sutun   = 4;
14char tus_takimi [sutun] [satir] =
15{
16{'1','2','3','A'},
17{'4','5','6','B'},
18{'7','8','9','C'},
19{'*','0','#','D'}
20};
21byte   satir_pinleri[sutun] = {13,12,11,10};
22byte sutun_pinleri[satir] = {9,8,7,6};
23Keypad   keypad = Keypad( makeKeymap(tus_takimi), satir_pinleri, sutun_pinleri, satir, sutun   );
24void setup()
25{
26Serial.begin(9600);
27keypad.addEventListener(keypadEvent);
28sg90.attach(9);
29pinMode(buzzer,   OUTPUT);
30
31
32lcd.begin();
33lcd.setCursor(1,0);
34lcd.print("Please Enter");
35lcd.setCursor(0,1);
36lcd.print("Password   to Open");
37}
38void loop()
39{
40keypad.getKey();
41}
42void keypadEvent(KeypadEvent   eKey)
43{
44switch (keypad.getState())
45{
46case PRESSED:
47int i;
48for(   i = 1; i <= 1; i++ )
49{
50digitalWrite(buzzer, HIGH);
51delay(50);
52digitalWrite(buzzer,   LOW);
53delay(50);
54}
55Serial.print("Pressed: ");
56Serial.println(eKey);
57switch   (eKey)
58{
59/*
60case '#':
61break;
62case '*':
63break;
64*/
65default:
66tus=tus+1;
67password.append(eKey);
68}
69//Serial.println(tus);
70if(tus   == 1)
71{
72lcd.clear();
73lcd.setCursor(1,0);
74lcd.print("Password:");
75lcd.setCursor(0,1);
76lcd.print("*_");
77}
78if(tus   == 2)
79{
80lcd.clear();
81lcd.setCursor(1,0);
82lcd.print("Password:");
83lcd.setCursor(0,1);
84lcd.print("**_");
85}
86if(tus   == 3)
87{
88lcd.clear();
89lcd.setCursor(1,0);
90lcd.print("Password:");
91lcd.setCursor(0,1);
92lcd.print("***_");
93}
94if(tus   == 4)
95{
96lcd.clear();
97lcd.setCursor(1,0);
98lcd.print("Password:");
99lcd.setCursor(0,1);
100lcd.print("****_");
101}
102if(tus   == 5)
103{
104lcd.clear();
105lcd.setCursor(1,0);
106lcd.print("Password:");
107lcd.setCursor(0,1);
108lcd.print("*****_");
109}
110if(tus   == 6)
111{
112lcd.clear();
113lcd.setCursor(1,0);
114lcd.print("Password:");
115lcd.setCursor(0,1);
116lcd.print("******_");
117}
118if(tus   == 7)
119{
120lcd.clear();
121lcd.setCursor(1,0);
122lcd.print("Password:");
123lcd.setCursor(0,1);
124lcd.print("*******_");
125}
126if(tus   == 8)
127{
128lcd.clear();
129lcd.setCursor(1,0);
130lcd.print("Password:");
131lcd.setCursor(0,1);
132lcd.print("********");
133}
134if(tus   == dlugosc)
135{
136delay(250);
137checkPassword();
138tus = 0;
139}
140}
141}
142void   checkPassword()
143{
144if (password.evaluate())
145{
146int i;
147for( i = 1; i   <= 2; i++ )
148{
149digitalWrite(buzzer, HIGH);
150delay(70);
151digitalWrite(buzzer,   LOW);
152delay(70);
153}
154tus = 0;
155Serial.println("Password OK");
156sg90.write(180);
157digitalWrite(buzzer,   HIGH);
158delay(800);
159digitalWrite(buzzer, LOW);
160sg90.write(0);
161lcd.clear();
162lcd.setCursor(0,0);
163lcd.print("Password   OK");
164delay(1000);
165lcd.clear();
166lcd.setCursor(1,0);
167lcd.print("Please   Enter");
168lcd.setCursor(0,1);
169lcd.print("Password to Open");
170}
171else
172{
173int   i;
174for( i = 1; i <= 1; i++ )
175{
176digitalWrite(buzzer, HIGH);
177delay(200);
178digitalWrite(buzzer,   LOW);
179delay(200);
180}
181tus = 0;
182password.reset();
183Serial.println("Error!");
184
185
186digitalWrite(buzzer,   HIGH);
187delay(800);
188
189digitalWrite(buzzer, LOW);
190lcd.clear();
191lcd.setCursor(0,0);
192lcd.print("Error!");
193delay(1000);
194lcd.clear();
195lcd.setCursor(1,0);
196lcd.print("Please   Enter");
197lcd.setCursor(0,1);
198lcd.print("Password to Open");
199}
200}

#include <Servo.h>
Servo sg90;
#include <Password.h>
#include   <Keypad.h>
#include <LiquidCrystal_I2C.h>
Password password = Password("12AB");   
int dlugosc = 4;
LiquidCrystal_I2C lcd(0x27 , 16 , 2);

int buzzer   = 13;
char tus; // number of clicks
const byte satir = 4; 
const byte sutun   = 4;
char tus_takimi [sutun] [satir] =
{
{'1','2','3','A'},
{'4','5','6','B'},
{'7','8','9','C'},
{'*','0','#','D'}
};
byte   satir_pinleri[sutun] = {13,12,11,10};
byte sutun_pinleri[satir] = {9,8,7,6};
Keypad   keypad = Keypad( makeKeymap(tus_takimi), satir_pinleri, sutun_pinleri, satir, sutun   );
void setup()
{
Serial.begin(9600);
keypad.addEventListener(keypadEvent);
sg90.attach(9);
pinMode(buzzer,   OUTPUT);


lcd.begin();
lcd.setCursor(1,0);
lcd.print("Please Enter");
lcd.setCursor(0,1);
lcd.print("Password   to Open");
}
void loop()
{
keypad.getKey();
}
void keypadEvent(KeypadEvent   eKey)
{
switch (keypad.getState())
{
case PRESSED:
int i;
for(   i = 1; i <= 1; i++ )
{
digitalWrite(buzzer, HIGH);
delay(50);
digitalWrite(buzzer,   LOW);
delay(50);
}
Serial.print("Pressed: ");
Serial.println(eKey);
switch   (eKey)
{
/*
case '#':
break;
case '*':
break;
*/
default:
tus=tus+1;
password.append(eKey);
}
//Serial.println(tus);
if(tus   == 1)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("*_");
}
if(tus   == 2)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("**_");
}
if(tus   == 3)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("***_");
}
if(tus   == 4)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("****_");
}
if(tus   == 5)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("*****_");
}
if(tus   == 6)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("******_");
}
if(tus   == 7)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("*******_");
}
if(tus   == 8)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("********");
}
if(tus   == dlugosc)
{
delay(250);
checkPassword();
tus = 0;
}
}
}
void   checkPassword()
{
if (password.evaluate())
{
int i;
for( i = 1; i   <= 2; i++ )
{
digitalWrite(buzzer, HIGH);
delay(70);
digitalWrite(buzzer,   LOW);
delay(70);
}
tus = 0;
Serial.println("Password OK");
sg90.write(180);
digitalWrite(buzzer,   HIGH);
delay(800);
digitalWrite(buzzer, LOW);
sg90.write(0);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Password   OK");
delay(1000);
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Please   Enter");
lcd.setCursor(0,1);
lcd.print("Password to Open");
}
else
{
int   i;
for( i = 1; i <= 1; i++ )
{
digitalWrite(buzzer, HIGH);
delay(200);
digitalWrite(buzzer,   LOW);
delay(200);
}
tus = 0;
password.reset();
Serial.println("Error!");


digitalWrite(buzzer,   HIGH);
delay(800);

digitalWrite(buzzer, LOW);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Error!");
delay(1000);
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Please   Enter");
lcd.setCursor(0,1);
lcd.print("Password to Open");
}
}

Passworder

arduino

1#include <Servo.h>
2Servo sg90;
3#include <Password.h>
4#include  <Keypad.h>
5#include <LiquidCrystal_I2C.h>
6Password password = Password("12AB");  
7int dlugosc = 4;
8LiquidCrystal_I2C lcd(0x27 , 16 , 2);
9
10int buzzer  = 13;
11char tus; // number of clicks
12const byte satir = 4; 
13const byte sutun  = 4;
14char tus_takimi [sutun] [satir] =
15{
16{'1','2','3','A'},
17{'4','5','6','B'},
18{'7','8','9','C'},
19{'*','0','#','D'}
20};
21byte  satir_pinleri[sutun] = {13,12,11,10};
22byte sutun_pinleri[satir] = {9,8,7,6};
23Keypad  keypad = Keypad( makeKeymap(tus_takimi), satir_pinleri, sutun_pinleri, satir, sutun  );
24void setup()
25{
26Serial.begin(9600);
27keypad.addEventListener(keypadEvent);
28sg90.attach(9);
29pinMode(buzzer,  OUTPUT);
30
31
32lcd.begin();
33lcd.setCursor(1,0);
34lcd.print("Please Enter");
35lcd.setCursor(0,1);
36lcd.print("Password  to Open");
37}
38void loop()
39{
40keypad.getKey();
41}
42void keypadEvent(KeypadEvent  eKey)
43{
44switch (keypad.getState())
45{
46case PRESSED:
47int i;
48for(  i = 1; i <= 1; i++ )
49{
50digitalWrite(buzzer, HIGH);
51delay(50);
52digitalWrite(buzzer,  LOW);
53delay(50);
54}
55Serial.print("Pressed: ");
56Serial.println(eKey);
57switch  (eKey)
58{
59/*
60case '#':
61break;
62case '*':
63break;
64*/
65default:
66tus=tus+1;
67password.append(eKey);
68}
69//Serial.println(tus);
70if(tus  == 1)
71{
72lcd.clear();
73lcd.setCursor(1,0);
74lcd.print("Password:");
75lcd.setCursor(0,1);
76lcd.print("*_");
77}
78if(tus  == 2)
79{
80lcd.clear();
81lcd.setCursor(1,0);
82lcd.print("Password:");
83lcd.setCursor(0,1);
84lcd.print("**_");
85}
86if(tus  == 3)
87{
88lcd.clear();
89lcd.setCursor(1,0);
90lcd.print("Password:");
91lcd.setCursor(0,1);
92lcd.print("***_");
93}
94if(tus  == 4)
95{
96lcd.clear();
97lcd.setCursor(1,0);
98lcd.print("Password:");
99lcd.setCursor(0,1);
100lcd.print("****_");
101}
102if(tus  == 5)
103{
104lcd.clear();
105lcd.setCursor(1,0);
106lcd.print("Password:");
107lcd.setCursor(0,1);
108lcd.print("*****_");
109}
110if(tus  == 6)
111{
112lcd.clear();
113lcd.setCursor(1,0);
114lcd.print("Password:");
115lcd.setCursor(0,1);
116lcd.print("******_");
117}
118if(tus  == 7)
119{
120lcd.clear();
121lcd.setCursor(1,0);
122lcd.print("Password:");
123lcd.setCursor(0,1);
124lcd.print("*******_");
125}
126if(tus  == 8)
127{
128lcd.clear();
129lcd.setCursor(1,0);
130lcd.print("Password:");
131lcd.setCursor(0,1);
132lcd.print("********");
133}
134if(tus  == dlugosc)
135{
136delay(250);
137checkPassword();
138tus = 0;
139}
140}
141}
142void  checkPassword()
143{
144if (password.evaluate())
145{
146int i;
147for( i = 1; i  <= 2; i++ )
148{
149digitalWrite(buzzer, HIGH);
150delay(70);
151digitalWrite(buzzer,  LOW);
152delay(70);
153}
154tus = 0;
155Serial.println("Password OK");
156sg90.write(180);
157digitalWrite(buzzer,  HIGH);
158delay(800);
159digitalWrite(buzzer, LOW);
160sg90.write(0);
161lcd.clear();
162lcd.setCursor(0,0);
163lcd.print("Password  OK");
164delay(1000);
165lcd.clear();
166lcd.setCursor(1,0);
167lcd.print("Please  Enter");
168lcd.setCursor(0,1);
169lcd.print("Password to Open");
170}
171else
172{
173int  i;
174for( i = 1; i <= 1; i++ )
175{
176digitalWrite(buzzer, HIGH);
177delay(200);
178digitalWrite(buzzer,  LOW);
179delay(200);
180}
181tus = 0;
182password.reset();
183Serial.println("Error!");
184
185
186digitalWrite(buzzer,  HIGH);
187delay(800);
188
189digitalWrite(buzzer, LOW);
190lcd.clear();
191lcd.setCursor(0,0);
192lcd.print("Error!");
193delay(1000);
194lcd.clear();
195lcd.setCursor(1,0);
196lcd.print("Please  Enter");
197lcd.setCursor(0,1);
198lcd.print("Password to Open");
199}
200}

#include <Servo.h>
Servo sg90;
#include <Password.h>
#include  <Keypad.h>
#include <LiquidCrystal_I2C.h>
Password password = Password("12AB");  
int dlugosc = 4;
LiquidCrystal_I2C lcd(0x27 , 16 , 2);

int buzzer  = 13;
char tus; // number of clicks
const byte satir = 4; 
const byte sutun  = 4;
char tus_takimi [sutun] [satir] =
{
{'1','2','3','A'},
{'4','5','6','B'},
{'7','8','9','C'},
{'*','0','#','D'}
};
byte  satir_pinleri[sutun] = {13,12,11,10};
byte sutun_pinleri[satir] = {9,8,7,6};
Keypad  keypad = Keypad( makeKeymap(tus_takimi), satir_pinleri, sutun_pinleri, satir, sutun  );
void setup()
{
Serial.begin(9600);
keypad.addEventListener(keypadEvent);
sg90.attach(9);
pinMode(buzzer,  OUTPUT);


lcd.begin();
lcd.setCursor(1,0);
lcd.print("Please Enter");
lcd.setCursor(0,1);
lcd.print("Password  to Open");
}
void loop()
{
keypad.getKey();
}
void keypadEvent(KeypadEvent  eKey)
{
switch (keypad.getState())
{
case PRESSED:
int i;
for(  i = 1; i <= 1; i++ )
{
digitalWrite(buzzer, HIGH);
delay(50);
digitalWrite(buzzer,  LOW);
delay(50);
}
Serial.print("Pressed: ");
Serial.println(eKey);
switch  (eKey)
{
/*
case '#':
break;
case '*':
break;
*/
default:
tus=tus+1;
password.append(eKey);
}
//Serial.println(tus);
if(tus  == 1)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("*_");
}
if(tus  == 2)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("**_");
}
if(tus  == 3)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("***_");
}
if(tus  == 4)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("****_");
}
if(tus  == 5)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("*****_");
}
if(tus  == 6)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("******_");
}
if(tus  == 7)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("*******_");
}
if(tus  == 8)
{
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Password:");
lcd.setCursor(0,1);
lcd.print("********");
}
if(tus  == dlugosc)
{
delay(250);
checkPassword();
tus = 0;
}
}
}
void  checkPassword()
{
if (password.evaluate())
{
int i;
for( i = 1; i  <= 2; i++ )
{
digitalWrite(buzzer, HIGH);
delay(70);
digitalWrite(buzzer,  LOW);
delay(70);
}
tus = 0;
Serial.println("Password OK");
sg90.write(180);
digitalWrite(buzzer,  HIGH);
delay(800);
digitalWrite(buzzer, LOW);
sg90.write(0);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Password  OK");
delay(1000);
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Please  Enter");
lcd.setCursor(0,1);
lcd.print("Password to Open");
}
else
{
int  i;
for( i = 1; i <= 1; i++ )
{
digitalWrite(buzzer, HIGH);
delay(200);
digitalWrite(buzzer,  LOW);
delay(200);
}
tus = 0;
password.reset();
Serial.println("Error!");


digitalWrite(buzzer,  HIGH);
delay(800);

digitalWrite(buzzer, LOW);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Error!");
delay(1000);
lcd.clear();
lcd.setCursor(1,0);
lcd.print("Please  Enter");
lcd.setCursor(0,1);
lcd.print("Password to Open");
}
}

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