Rfid Lock System

In This project we gonna make an RFID Lock Easy & Simple !

Apr 25, 2021

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home automation

smart appliances

security

Devices & Components

16x2 LCD display with I²C interface

Arduino Uno Rev3

Breadboard (generic)

5 mm LED: Red

Relay (generic)

RFID reader (generic)

Jumper wires (generic)

Hardware & Tools

Soldering iron (generic)

Hot glue gun (generic)

Software & Tools

Arduino IDE

Project description

Code

Arduino Code

c_cpp

RFID Lock system Arduino Code

1//feel free to contact
2//sreeramaj53@gmail.com
3//www.youtube.com/ZenoModiff
4
5#include   <SPI.h>
6#include <Wire.h> 
7#include <MFRC522.h>
8#include <LiquidCrystal_I2C.h>
9
10LiquidCrystal_I2C   lcd(0x27, 16, 2);
11 
12#define SS_PIN 10
13#define RST_PIN 9
14#define LED_G   5 
15#define LED_R 4
16#define RELAY1 6
17
18MFRC522 mfrc522(SS_PIN, RST_PIN);   
19
20 
21void setup() 
22
23{
24  lcd.begin();
25  lcd.backlight();
26
27   lcd.print("ZENO MODIFF"); 
28  lcd.setCursor(0, 1);
29  lcd.print("RFID LOCK");
30   delay(1000);
31  lcd.clear();
32  
33  SPI.begin();   
34  mfrc522.PCD_Init();   
35  pinMode(LED_G, OUTPUT);
36  pinMode(LED_R, OUTPUT);
37  pinMode(RELAY1,   OUTPUT);
38 
39
40}
41void loop() 
42{
43lcd.clear();
44lcd.print("PLACE   YOUR");
45lcd.setCursor(0, 1);
46lcd.print("RFID TAG");
47delay(1000);
48lcd.clear();
49
50
51
52
53   // Look for new cards
54  if ( ! mfrc522.PICC_IsNewCardPresent()) 
55  {
56     return;
57  }
58  // Select one of the cards
59  if ( ! mfrc522.PICC_ReadCardSerial())   
60  {
61    return;
62  }
63  String content= "";
64  byte letter;
65  for   (byte i = 0; i < mfrc522.uid.size; i++) 
66  {
67    
68     content.concat(String(mfrc522.uid.uidByte[i]   < 0x10 ? " 0" : " "));
69     content.concat(String(mfrc522.uid.uidByte[i],   HEX));
70  }
71  content.toUpperCase();
72  if (content.substring(1) == "2A   17 6E 3C") 
73  {
74    
75   lcd.clear();
76   lcd.print("AUTHORIZED ACCESS");   
77   lcd.setCursor(0, 0);
78   delay(2000);
79   lcd.clear();
80   
81    digitalWrite(RELAY1,   HIGH);
82    digitalWrite(LED_G, HIGH);
83    delay(6000);
84    digitalWrite(RELAY1,   LOW);
85    digitalWrite(LED_G, LOW);
86    delay(1000);
87  }
88 
89 else    {
90
91   lcd.print("UN AUTHORISED"); 
92   lcd.setCursor(0, 0);
93       digitalWrite(LED_R,   HIGH);
94    delay(2000);
95           digitalWrite(LED_R, LOW);
96              lcd.clear();
97     delay(2000);
98
99  }
100}

//feel free to contact
//sreeramaj53@gmail.com
//www.youtube.com/ZenoModiff

#include   <SPI.h>
#include <Wire.h> 
#include <MFRC522.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C   lcd(0x27, 16, 2);
 
#define SS_PIN 10
#define RST_PIN 9
#define LED_G   5 
#define LED_R 4
#define RELAY1 6

MFRC522 mfrc522(SS_PIN, RST_PIN);   

 
void setup() 

{
  lcd.begin();
  lcd.backlight();

   lcd.print("ZENO MODIFF"); 
  lcd.setCursor(0, 1);
  lcd.print("RFID LOCK");
   delay(1000);
  lcd.clear();
  
  SPI.begin();   
  mfrc522.PCD_Init();   
  pinMode(LED_G, OUTPUT);
  pinMode(LED_R, OUTPUT);
  pinMode(RELAY1,   OUTPUT);
 

}
void loop() 
{
lcd.clear();
lcd.print("PLACE   YOUR");
lcd.setCursor(0, 1);
lcd.print("RFID TAG");
delay(1000);
lcd.clear();




   // Look for new cards
  if ( ! mfrc522.PICC_IsNewCardPresent()) 
  {
     return;
  }
  // Select one of the cards
  if ( ! mfrc522.PICC_ReadCardSerial())   
  {
    return;
  }
  String content= "";
  byte letter;
  for   (byte i = 0; i < mfrc522.uid.size; i++) 
  {
    
     content.concat(String(mfrc522.uid.uidByte[i]   < 0x10 ? " 0" : " "));
     content.concat(String(mfrc522.uid.uidByte[i],   HEX));
  }
  content.toUpperCase();
  if (content.substring(1) == "2A   17 6E 3C") 
  {
    
   lcd.clear();
   lcd.print("AUTHORIZED ACCESS");   
   lcd.setCursor(0, 0);
   delay(2000);
   lcd.clear();
   
    digitalWrite(RELAY1,   HIGH);
    digitalWrite(LED_G, HIGH);
    delay(6000);
    digitalWrite(RELAY1,   LOW);
    digitalWrite(LED_G, LOW);
    delay(1000);
  }
 
 else    {

   lcd.print("UN AUTHORISED"); 
   lcd.setCursor(0, 0);
       digitalWrite(LED_R,   HIGH);
    delay(2000);
           digitalWrite(LED_R, LOW);
              lcd.clear();
     delay(2000);

  }
}

Arduino Code

c_cpp

RFID Lock system Arduino Code

1//feel free to contact
2//sreeramaj53@gmail.com
3//www.youtube.com/ZenoModiff
4
5#include  <SPI.h>
6#include <Wire.h> 
7#include <MFRC522.h>
8#include <LiquidCrystal_I2C.h>
9
10LiquidCrystal_I2C  lcd(0x27, 16, 2);
11 
12#define SS_PIN 10
13#define RST_PIN 9
14#define LED_G  5 
15#define LED_R 4
16#define RELAY1 6
17
18MFRC522 mfrc522(SS_PIN, RST_PIN);  
19
20 
21void setup() 
22
23{
24  lcd.begin();
25  lcd.backlight();
26
27  lcd.print("ZENO MODIFF"); 
28  lcd.setCursor(0, 1);
29  lcd.print("RFID LOCK");
30  delay(1000);
31  lcd.clear();
32  
33  SPI.begin();   
34  mfrc522.PCD_Init();  
35  pinMode(LED_G, OUTPUT);
36  pinMode(LED_R, OUTPUT);
37  pinMode(RELAY1,  OUTPUT);
38 
39
40}
41void loop() 
42{
43lcd.clear();
44lcd.print("PLACE  YOUR");
45lcd.setCursor(0, 1);
46lcd.print("RFID TAG");
47delay(1000);
48lcd.clear();
49
50
51
52
53  // Look for new cards
54  if ( ! mfrc522.PICC_IsNewCardPresent()) 
55  {
56    return;
57  }
58  // Select one of the cards
59  if ( ! mfrc522.PICC_ReadCardSerial())  
60  {
61    return;
62  }
63  String content= "";
64  byte letter;
65  for  (byte i = 0; i < mfrc522.uid.size; i++) 
66  {
67    
68     content.concat(String(mfrc522.uid.uidByte[i]  < 0x10 ? " 0" : " "));
69     content.concat(String(mfrc522.uid.uidByte[i],  HEX));
70  }
71  content.toUpperCase();
72  if (content.substring(1) == "2A  17 6E 3C") 
73  {
74    
75   lcd.clear();
76   lcd.print("AUTHORIZED ACCESS");  
77   lcd.setCursor(0, 0);
78   delay(2000);
79   lcd.clear();
80   
81    digitalWrite(RELAY1,  HIGH);
82    digitalWrite(LED_G, HIGH);
83    delay(6000);
84    digitalWrite(RELAY1,  LOW);
85    digitalWrite(LED_G, LOW);
86    delay(1000);
87  }
88 
89 else   {
90
91   lcd.print("UN AUTHORISED"); 
92   lcd.setCursor(0, 0);
93       digitalWrite(LED_R,  HIGH);
94    delay(2000);
95           digitalWrite(LED_R, LOW);
96              lcd.clear();
97    delay(2000);
98
99  }
100}

//feel free to contact
//sreeramaj53@gmail.com
//www.youtube.com/ZenoModiff

#include  <SPI.h>
#include <Wire.h> 
#include <MFRC522.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C  lcd(0x27, 16, 2);
 
#define SS_PIN 10
#define RST_PIN 9
#define LED_G  5 
#define LED_R 4
#define RELAY1 6

MFRC522 mfrc522(SS_PIN, RST_PIN);  

 
void setup() 

{
  lcd.begin();
  lcd.backlight();

  lcd.print("ZENO MODIFF"); 
  lcd.setCursor(0, 1);
  lcd.print("RFID LOCK");
  delay(1000);
  lcd.clear();
  
  SPI.begin();   
  mfrc522.PCD_Init();  
  pinMode(LED_G, OUTPUT);
  pinMode(LED_R, OUTPUT);
  pinMode(RELAY1,  OUTPUT);
 

}
void loop() 
{
lcd.clear();
lcd.print("PLACE  YOUR");
lcd.setCursor(0, 1);
lcd.print("RFID TAG");
delay(1000);
lcd.clear();




  // Look for new cards
  if ( ! mfrc522.PICC_IsNewCardPresent()) 
  {
    return;
  }
  // Select one of the cards
  if ( ! mfrc522.PICC_ReadCardSerial())  
  {
    return;
  }
  String content= "";
  byte letter;
  for  (byte i = 0; i < mfrc522.uid.size; i++) 
  {
    
     content.concat(String(mfrc522.uid.uidByte[i]  < 0x10 ? " 0" : " "));
     content.concat(String(mfrc522.uid.uidByte[i],  HEX));
  }
  content.toUpperCase();
  if (content.substring(1) == "2A  17 6E 3C") 
  {
    
   lcd.clear();
   lcd.print("AUTHORIZED ACCESS");  
   lcd.setCursor(0, 0);
   delay(2000);
   lcd.clear();
   
    digitalWrite(RELAY1,  HIGH);
    digitalWrite(LED_G, HIGH);
    delay(6000);
    digitalWrite(RELAY1,  LOW);
    digitalWrite(LED_G, LOW);
    delay(1000);
  }
 
 else   {

   lcd.print("UN AUTHORISED"); 
   lcd.setCursor(0, 0);
       digitalWrite(LED_R,  HIGH);
    delay(2000);
           digitalWrite(LED_R, LOW);
              lcd.clear();
    delay(2000);

  }
}

Downloadable files

Schematics

RFID Lock System Schematics

Schematics

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