RFID Based Smart Attendance System

RFID reader (generic)

Soldering iron (generic)

Alphanumeric LCD, 20 x 4

Servo Module (Generic)

Jumper wires (generic)

Solder Wire, Lead Free

Arduino IDE

Breadboard (generic)

Arduino UNO

<h3 >Why did we decide to make it?</h3>Attendance in University is generally paper based which may sometimes cause errors. Taking attendance manually consumes more time. So, In this project we have designed RFID Based Attendance System using Arduino and RFID MFRC522 Module. In this system, each student is issued an RFID card as their id card and their attendance is marked when they touch their card to RFID reader.<figure><img src=https://projects.arduinocontent.cc/952872cb-4ec1-4928-befc-f22a6e2c02e8.png /><figcaption>Device prototype</figcaption></figure><h3 >What is RFID?</h3>RFID stands for Radio Frequency Identification.Here digital data stored in RFID tags are captured by a reader via radio waves.<h3 >Working principle of RFID</h3><figure><img src=https://projects.arduinocontent.cc/270d5cda-f49b-4e03-a723-32deaa07b7e6.png /><figcaption> </figcaption></figure><h3 >Components used in the project</h3>1. Arduino Uno Board <figure><img src=https://projects.arduinocontent.cc/66b5db38-6ddd-4694-b53d-3990cfc4b519.png /><figcaption> </figcaption></figure>This is a microcontroller board based on the Microchip ATmega328P. This was used as the brain of the circuit.2. RFID MFRC522 Module<figure><img src=https://projects.arduinocontent.cc/f4becb9a-6a72-4820-af45-3e85a8a24faf.png /><figcaption> </figcaption></figure>This was the transmission module used for RFID communication. This RFID reader communicates at 13.56 MHz. Uses SPI communication.3. SD card module<figure><img src=https://projects.arduinocontent.cc/6620d9a1-7d77-4e12-a807-950d2609bfbd.png /><figcaption> </figcaption></figure>Used to transfer data to and from SD card. Used to fulfil the data logging part. Uses SPI communication to transfer data between the microcontroller and sd card.4. RTC module<figure><img src=https://projects.arduinocontent.cc/59782bb3-9e2f-4e98-b65b-bff40dd6c26b.png /><figcaption> </figcaption></figure>RTC stands for Real Time Clock. This is power by a battery. Therefore, even when the whole device is switched off we can still get the accurate time from the RTC.5. LCD display (20 x 4) with i2c lcd module<figure><img src=https://projects.arduinocontent.cc/6fd3a1ca-4efe-43a4-a02b-a67b914adc67.png /><figcaption>LCD 20*4</figcaption></figure><figure><img src=https://projects.arduinocontent.cc/e7fed8af-d961-4cae-a7b8-32e8b3c63d9b.png /><figcaption>i2C module</figcaption></figure>Display information based on the RFID tag read. Display the number of students in the library at a given moment.<h3 >Components connection with arduino</h3>1) RFID MFRC522Pin \t Wiring to Arduino UnoSDA \t Digital 10SCK \t Digital 13MOSI \t Digital 11MISO \t Digital 12IRQ \t unconnectedGND \t GNDRST \t Digital 93.3V \t 3.3VCaution: You must power this device to 3.3V!2) Real Time Clock (RTC) Module (DS1307 and DS3231)Pin \t Wiring to Arduino UnoSCL \t A5SDA \t A4VCC \t 5VGND \t GNDIf you’re using other Arduino board rather than the uno, chek out what are their SCL and SDA pins. Nano: SDA (A4); SCL(A5) MEGA: SDA (20); SCL(21) Leonardo: SDA (20); SCL(21)3) SD Card moduleSD card module \tWiring to Arduino Uno\t Wiring to Arduino MegaVCC\t 3.3V or 5V \t 3.3V or 5V CS\t 4\t 53MOSI\t 11\t 51CLK\t 13\t 52MISO\t 12\t 50GND\t GND\t GND4) I2C moduleI2C Character LCD\tArduinoGND\t GNDVCC\t 5 VSDA\t A4SDL\t A5<h3 >CODE</h3>You can get the source code of this project from our GitHub page. Here is the <a href="https://github.com/ravdsn/RFID-Based-Attendance-System-using-Arduino">GitHub link</a> for that.

RFID Based Attendance System

Schematic diagram

circuit_xnsmkov7uh_IhD3g2prQv.jpg

RFID Based Smart Attendance System

In this project we have designed RFID Based Attendance System using Arduino UNO and RFID MFRC522 Module.