IoT-Based First Aid Box Monitoring System

A first aid box monitoring system using a door sensor, ESP32-CAM, and a Laravel application. When the box opens, the device captures images, sends data to the server, and notifies staff through Telegram.

TECHNOLOGIES USED

Laravel 12 / PHP 8.2+ / MySQL / Bootstrap 5 / Tabler / ESP32-CAM / Arduino / C++ / MC38 Magnetic Door Switch / Telegram Bot API / Laravel Queue / FFmpeg / Laravel Excel / DomPDF

My contribution: I connected the sensor and ESP32-CAM to a Laravel API and built the event-review and stock-tracking workflow.
Key decision: The sensor records access, but stock is updated only after staff review the visual evidence.

PROBLEM

Periodic first aid box inspections only show the condition at the time staff arrive. There is no record of when the box was opened, which items were removed, or evidence that can help determine restocking needs.

MAIN FEATURES

01

Door sensor & ESP32-CAM

Opening the box triggers frame capture and event delivery to the API.
02

Device-authenticated API

Each device uses its own credentials when sending data to Laravel.
03

Private visual evidence

Frames remain private, are processed into video when possible, and can still be played back as a fallback.
04

Staff review & stock tracking

Review results record removed items and create stock movement history.
05

Notifications & reports

Telegram directs staff to the event, while reports are available in PDF and Excel.

IMPLEMENTATION

The door sensor and ESP32-CAM connect to a Laravel API with device authentication. The device captures a series of JPEG frames whenever the door opens. The server stores the images privately, processes them into video through a queue when FFmpeg is available, provides frame playback as a fallback, and sends a Telegram notification. Staff then review the recording, record removed items, and update stock.

PROJECT SCREENS

Camera event review page with recording playback, event information, and a form for recording missing first aid items. — Screen 01 Staff review visual evidence from a box-opening event and record missing items before the review is reflected in inventory records.

ESP32-CAM device management page showing device codes, assigned first aid boxes, status, and last activity. — Screen 02 ESP32-CAM devices are managed and assigned to first aid boxes so their operational status can be monitored from the application.

First aid stock movement history showing incoming and outgoing transactions and their relationship to reviewed events. — Screen 03 The stock ledger records item changes from manual adjustments and event reviews, including references to events that triggered stock deductions.

First aid monitoring report page with period filters, item usage statistics, event history, stock conditions, and PDF and Excel exports. — Screen 04 Reports combine event statistics, frequently missing items, review history, and stock snapshots with PDF and Excel export support.

Exported PDF report for first aid box monitoring containing event statistics, missing-item data, and review history. — Screen 05 Monitoring reports can be exported to PDF, providing event and item usage summaries in a document format.

RESULT

The application records when the box was opened, visual evidence, staff review results, and stock changes. A summary is available on the dashboard, and reports can be exported to PDF or Excel.

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PROBLEM

MAIN FEATURES

Door sensor & ESP32-CAM

Device-authenticated API

Private visual evidence

Staff review & stock tracking

Notifications & reports

IMPLEMENTATION

PROJECT SCREENS

RESULT

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