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Door Lock System using RFID

Published May 14, 2024
 Apache-2.0
 1 hours to build
 Beginner
arduino

The RFID door lock system uses RFID technology to grant access to a door. Users can gain entry by presenting an RFID card or tag to a reader, which then authenticates the ID and unlocks the door if authorized, providing a secure and convenient access control solution.

display image

Components Used
Arduino UNO
Arduino UNO 		X 1
RFID CARD
RFID CARD 		X 1
28BYJ-48 Stepper Motor
Power Management IC Development Tools Gear Stepper Motor Driver Pack 		X 1
LCD 16x2 Display Module
LCD16x2 has two lines with 16 character in each line. LCD16x2 is generally used for printing values and string in embedded application. 		X 1
RFID reader
 X 1
Door lock
 X 1
Description
  1. Gathering Components: First, I gathered the necessary components, including an Arduino Uno, an RFID reader module, an RFID card or tag, a servo motor, and connecting wires.
  2. Connections: I connected the RFID reader module to the Arduino Uno using jumper wires, ensuring proper pin connections according to the module's specifications. Then, I connected the servo motor to the Arduino Uno to control the locking mechanism.
  3. Programming Arduino: Next, I wrote the Arduino code to initialize the RFID reader and servo motor, defining functions to read RFID card IDs and control the servo motor based on authentication.
  4. RFID Authentication: In the code, I programmed the Arduino to compare the RFID card ID scanned by the reader with a predefined list of authorized IDs. If a match is found, the servo motor unlocks the door.
  5. Testing and Debugging: I tested the system thoroughly, scanning different RFID cards to ensure proper authentication and door unlocking. I also debugged any issues encountered during testing, refining the code as needed.
  6. Integration: Finally, I integrated the system, ensuring the servo motor effectively locks and unlocks the door in response to valid RFID card scans, completing the RFID Door Lock system project.
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Institute / Organization

St Josephs institute of technology
   
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