RFID Door Lock Using Arduino

Introduction: RFID Door Lock Using Arduino

Hi guys in this instructables we will learn how to create a door lock with arduino using RFID card & RFID reader.

Since RFID card is used in most of the offices and other secure buildings for door access so i thought we should also build our secure door lock using RFID reader & RFID Card to access the door lock.

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Things You Need

For this instructables we will need following things :

Arduino UNO


EM-18 Reader Module with Tags

Relay 5v

LED

Buzzer

Connecting wire

Resistors

Breadboard

Step 2: Connections

Please follow the shown schmatics and connect everything together.

Step 3: Code

Please copy the following code & upload the code to your arduino Board :

char tag[] ="180088F889E1";


char input[12];

int count = 0;

boolean flag = 0;

void setup()

{

pinMode(2,OUTPUT);

pinMode(3, OUTPUT);

pinMode(4, OUTPUT);

Serial.begin(9600);

}

void loop()

{

digitalWrite(3,1);

if(Serial.available())

{

count = 0;

while(Serial.available() && count < 12)

{

input[count] = Serial.read();

count++;

delay(5);

}

if(count == 12)

{

count =0;

flag = 1;

while(count<12 && flag !=0)

{

if(tag[count]==input[count])

flag = 1;

else

flag= 0;

}

if(flag == 1)

{

digitalWrite(2,HIGH);

digitalWrite(3,LOW);

delay(5000);

digitalWrite(2,LOW);

}

if(flag == 0)

{

for(int k =0; k<= 10; k++)

{

digitalWrite(4,HIGH);

}

}

}

}

}

Step 4: Project in Action

So after connecting everything together and uploading the code to your arduino. Its finally ready for action so connect the power and when you put your RFID card to your card reader it will give access to the door and if it is another card it will not give access. So have fun making your own door lock with Arduino.

Be the First to Share

    Recommendations

    • Magnets Challenge

      Magnets Challenge
    • Raspberry Pi Contest 2020

      Raspberry Pi Contest 2020
    • Wearables Contest

      Wearables Contest

    Discussions