Find My Book – AI & IoT Smart Library Navigation & Inventory

The Find My Book Smart Library system operates through a distributed network of microcontrollers and a central server coordinating inventory and navigation. At the core, a Raspberry Pi running a Flask backend and an SQLite database manages book records, user authentication, and system logic, with data storage handled via a 32GB Micro SD card. The ESP32-S3-BOX-3 serves as the primary user interface, utilizing SquareLine Studio and the LVGL graphics library to render touch-based navigation menus for finding books. When a user queries a book, the Raspberry Pi communicates the location data to subordinate devices. Two MFRC522 RFID Readers connected to secondary microcontrollers handle user and book identification through RFID authentication during check-outs and returns. For physical shelf-level guidance, an Arduino Uno and ESP8266 nodes control WS2812B addressable LED strips, illuminating the exact path or shelf location of the target book. Additionally, a passive buzzer driven through a 330-ohm resistor provides audible feedback for scanning events and system alerts. A dedicated 5V power supply powers the low-voltage logic components, while perf boards, jumper wires, breadboards, and male header pins secure the physical wiring and modular connections across the multiple distributed hardware nodes.