RFID Card Door Lock

This can be used to enhance safety and security.

Oct 18, 2021

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2197 views

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2 respects

security

Components and supplies

SG90 Micro-servo motor

RFID Module (Generic)

Jumper wires (generic)

RFID reader (generic)

Arduino UNO

Tools and machines

Soldering iron (generic)

PCB Holder, Soldering Iron

Apps and platforms

Arduino IDE

Project description

Code

Arduino Code

arduino

This is the code

1#include <SPI.h>
2#include <MFRC522.h>
3#include <Servo.h>
4
5#define   SS_PIN 10
6#define RST_PIN 9
7#define SERVO_PIN 3
8Servo myservo;
9#define   ACCESS_DELAY 2000
10#define DENIED_DELAY 1000
11MFRC522 mfrc522(SS_PIN, RST_PIN);   
12void setup()
13{
14Serial.begin(9600); 
15SPI.begin(); 
16mfrc522.PCD_Init();   
17myservo.attach(SERVO_PIN);
18myservo.write( 70 );
19delay(7500);
20myservo.write(   0 );
21Serial.println("Put your card to the reader...");
22Serial.println();
23}
24void   loop()
25{
26
27if ( ! mfrc522.PICC_IsNewCardPresent())
28{
29return;
30}
31
32if   ( ! mfrc522.PICC_ReadCardSerial())
33{
34return;
35}
36
37Serial.print("UID   tag :");
38
39String content= "";
40byte letter;
41for (byte i = 0; i < mfrc522.uid.size;   i++)
42{
43Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
44Serial.print(mfrc522.uid.uidByte[i],   HEX);
45content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
46content.concat(String(mfrc522.uid.uidByte[i],   HEX));
47}
48Serial.println();
49Serial.print("Message : ");
50content.toUpperCase();
51if   (content.substring(1) == "E3 3F 87 34") 
52{
53Serial.println("Authorized access");
54Serial.println();
55myservo.write(   70 );
56delay(5500);
57myservo.write( 0 );
58}
59else {
60Serial.println("   Access denied");
61
62delay(DENIED_DELAY);
63
64}
65}

#include <SPI.h>
#include <MFRC522.h>
#include <Servo.h>

#define   SS_PIN 10
#define RST_PIN 9
#define SERVO_PIN 3
Servo myservo;
#define   ACCESS_DELAY 2000
#define DENIED_DELAY 1000
MFRC522 mfrc522(SS_PIN, RST_PIN);   
void setup()
{
Serial.begin(9600); 
SPI.begin(); 
mfrc522.PCD_Init();   
myservo.attach(SERVO_PIN);
myservo.write( 70 );
delay(7500);
myservo.write(   0 );
Serial.println("Put your card to the reader...");
Serial.println();
}
void   loop()
{

if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}

if   ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}

Serial.print("UID   tag :");

String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size;   i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i],   HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i],   HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
if   (content.substring(1) == "E3 3F 87 34") 
{
Serial.println("Authorized access");
Serial.println();
myservo.write(   70 );
delay(5500);
myservo.write( 0 );
}
else {
Serial.println("   Access denied");

delay(DENIED_DELAY);

}
}

Arduino Code

arduino

This is the code

1#include <SPI.h>
2#include <MFRC522.h>
3#include <Servo.h>
4
5#define  SS_PIN 10
6#define RST_PIN 9
7#define SERVO_PIN 3
8Servo myservo;
9#define  ACCESS_DELAY 2000
10#define DENIED_DELAY 1000
11MFRC522 mfrc522(SS_PIN, RST_PIN);  
12void setup()
13{
14Serial.begin(9600); 
15SPI.begin(); 
16mfrc522.PCD_Init();  
17myservo.attach(SERVO_PIN);
18myservo.write( 70 );
19delay(7500);
20myservo.write(  0 );
21Serial.println("Put your card to the reader...");
22Serial.println();
23}
24void  loop()
25{
26
27if ( ! mfrc522.PICC_IsNewCardPresent())
28{
29return;
30}
31
32if  ( ! mfrc522.PICC_ReadCardSerial())
33{
34return;
35}
36
37Serial.print("UID  tag :");
38
39String content= "";
40byte letter;
41for (byte i = 0; i < mfrc522.uid.size;  i++)
42{
43Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
44Serial.print(mfrc522.uid.uidByte[i],  HEX);
45content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
46content.concat(String(mfrc522.uid.uidByte[i],  HEX));
47}
48Serial.println();
49Serial.print("Message : ");
50content.toUpperCase();
51if  (content.substring(1) == "E3 3F 87 34") 
52{
53Serial.println("Authorized access");
54Serial.println();
55myservo.write(  70 );
56delay(5500);
57myservo.write( 0 );
58}
59else {
60Serial.println("  Access denied");
61
62delay(DENIED_DELAY);
63
64}
65}

#include <SPI.h>
#include <MFRC522.h>
#include <Servo.h>

#define  SS_PIN 10
#define RST_PIN 9
#define SERVO_PIN 3
Servo myservo;
#define  ACCESS_DELAY 2000
#define DENIED_DELAY 1000
MFRC522 mfrc522(SS_PIN, RST_PIN);  
void setup()
{
Serial.begin(9600); 
SPI.begin(); 
mfrc522.PCD_Init();  
myservo.attach(SERVO_PIN);
myservo.write( 70 );
delay(7500);
myservo.write(  0 );
Serial.println("Put your card to the reader...");
Serial.println();
}
void  loop()
{

if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}

if  ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}

Serial.print("UID  tag :");

String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size;  i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i],  HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i],  HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
if  (content.substring(1) == "E3 3F 87 34") 
{
Serial.println("Authorized access");
Serial.println();
myservo.write(  70 );
delay(5500);
myservo.write( 0 );
}
else {
Serial.println("  Access denied");

delay(DENIED_DELAY);

}
}

Downloadable files

Diagram

The diagram of it

Diagram

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