Project Hub /Automotive EV & Transportation/Anti-Theft Tracking/Raspberry Pi based Automatic Library Book Management System using Python Flask

Intermediate

RASPBERRY PI

₹5,000 – ₹15,000

6 – 12 Hours

Partial Kit

Raspberry Pi based Automatic Library Book Management System using Python Flask

An automated library management system built with Raspberry Pi, OpenCV, and Python Flask that allows contactless book issuing and returning via IR sensors and barcode scanning.

Originally published on CircuitDigest

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

Raspberry Pi 3 - Model B+ 1.4Ghz 64-bit quad-core Processor with 1 GB Ram (Original) Rs. 5,400.00
IR Proximity Sensor Module With Pot Rs. 55.00
ESP32 CAM WiFi Module Bluetooth with OV2640 Camera Rs. 810.00
10pcs - 220 ohm 1/4 W Resistor Set Rs. 39.00
10pcs 5mm RED Diffused Light Emitting Diodes - LEDs Set Rs. 39.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

This list includes a generic resistor set as a placeholder — it is not matched to the exact value or part number this circuit needs. The correct one is specified on the original source page linked above; check it before buying.

We don't carry yet: Transformer
Capacitors
Diodes (1N4007 / 1N4148 / Schottky / Zener)
Voltage Regulator IC (7805 / LM317 / 1117)
Custom PCB / PCB Fab
Enclosure / Box / Case
Speaker / Audio Amplifier
USB sound card

Browse all components

How It Works

The Raspberry Pi based Automatic Library Book Management System operates as an integrated hardware and software platform designed to streamline book issuing and returning processes. At the heart of the hardware setup is a custom-built power supply unit, utilizing a transformer, diodes, a capacitor, a 7805 voltage rectifier, and resistors to step down and regulate AC mains voltage into a stable DC supply for the circuitry. IR sensors detect the physical presence or movement of books, signaling the system when an item is placed in the designated slot. Once triggered, the USB webcam captures an image of the book's barcode. The Raspberry Pi processes this visual feed using OpenCV and the Pyzbar library to decode the barcode information, cross-referencing it with a backend MySQL database managed via Python Flask and PHP scripts. For user feedback, the system incorporates a 3.5-inch Raspberry Pi TFT Display for visual prompts, while a USB sound card and USB speaker drive text-to-speech outputs generated via the gtts library to provide audible confirmations of transaction statuses. LEDs indicate system power and operational states. Furthermore, remote interaction is supported through a mobile interface designed with MIT App Inventor, and a PySimpleGUI setup allows local desktop control, all interconnected securely via jumper wires on custom PCBs housed within a protective enclosure.

Why Build This

Develop practical undergraduate-level engineering experience by integrating computer vision, database management, and custom power electronics into a cohesive IoT system.

Implement contactless inventory tracking solutions that minimize physical contact, reduce germ transfer, and optimize workflow efficiency in modern institutional libraries.

Gain hands-on proficiency in connecting diverse peripherals—such as USB webcams, TFT displays, and IR sensors—to a single-board computer running Python and Flask.

Real-World Application

Libraries in schools, colleges, and universities seeking contactless, automated operations to minimize germ transfer, enforce social distancing, and track inventory efficiently.

Skills You'll Learn

Computer vision barcode decoding

Python Flask web framework development

MySQL database integration

custom AC-to-DC power supply design

text-to-speech audio synthesis

mobile app development with MIT App Inventor

Safety Precautions

Exercise standard caution when assembling custom AC-to-DC full bridge rectifier power supplies and handling mains voltage connections.

Technology Tags

PYTHON

FLASK

OPENCV

MYSQL

PYZBAR

GTTS

PYSIMPLEGUI

BARCODE SCANNING

IR SENSORS

WEB DEVELOPMENT

MOBILE APP

Frequently Asked Questions

Why is a custom transformer and 7805 voltage rectifier needed if the Raspberry Pi uses a standard USB power adaptor?

The custom power supply circuit is typically used to power auxiliary peripheral hardware components like the IR sensors, LEDs, and relay modules that require specific DC voltage levels separate from the main board.

Can I use a different model of single-board computer instead of the Raspberry Pi 3 B+ or Raspberry Pi 5?

The software stack depends heavily on Raspberry Pi OS compatibility, Python libraries like OpenCV and Pyzbar, and the specific 3.5-inch TFT display header pins, so substituting boards may require significant pinout and driver adjustments.

How does the MIT App Inventor interface communicate with the Raspberry Pi system?

The mobile app interacts with the system remotely via network requests routed through the Python Flask web application backend hosted on the Raspberry Pi.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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