QR RFID Attendance

Smart attendance system using QR check-ins, RFID cards, web dashboards, and Arduino.

Internet of Things (IoT)TypeScriptMIT

Abstract

QR RFID Attendance is an open-source Internet of Things (IoT) project. Smart attendance system using QR check-ins, RFID cards, web dashboards, and Arduino. It is built using TypeScript, Arduino, Express, React. The complete source code is publicly available on GitHub under the MIT License, making it a useful reference for students building an Internet of Things (IoT) mini project or final-year project.

1. Introduction

Smart attendance system using QR check-ins, RFID cards, web dashboards, and Arduino.

2. Objective

Smart attendance system using QR check-ins, RFID cards, web dashboards, and Arduino.

This project demonstrates how TypeScript, Arduino, Express can be applied to a real-world Internet of Things (IoT) problem.

4. Technology Stack

TypeScriptArduinoExpressReact
  • Microcontroller: Arduino Uno
  • RFID Module: RC522
  • Components: RGB LEDs, Buzzer
  • Libraries: MFRC522, ArduinoJson

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

  • Node.js (LTS) and npm / yarn / pnpm
  • VS Code or any code editor
  • Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/Sungblab/QR-RFID-Attendance.git
cd QR-RFID-Attendance

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

  • Add a mobile dashboard using Blynk or Firebase
  • Store readings in a cloud database for history charts
  • Add alerts via SMS / Telegram when thresholds are crossed

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

  1. Which microcontroller / board and sensors are used and why?
  2. How does the device send data (Wi-Fi, MQTT, HTTP, Bluetooth)?
  3. Where is the sensor data stored and visualised?
  4. How is power consumption managed?
  5. How would you secure the device and its communication?

9. Source Code & License

This project is developed by Sungblab and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.

View Source on GitHubDownload ZIP

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