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

Components and supplies

Breadboard (generic)

5 mm LED: Red

Relay (generic)

RFID reader (generic)

I2C 16x2 Arduino LCD Display Module

Arduino UNO

Jumper wires (generic)

Tools and machines

Soldering iron (generic)

Hot glue gun (generic)

Apps and platforms

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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