Bluetooth File Transfer Web App

This is a modern Web Bluetooth application that allows you to:

• Connect two Bluetooth-enabled devices using custom Bluetooth Low Energy (BLE) services
• Transfer files (split into 512-byte chunks) between devices
• View a Transfer History (history is temporary and will be deleted after 20 days)
• See a Device History with all previously connected devices
• Play a sound when devices pair or disconnect
• Use the app offline (PWA support)
• Play music directly in the browser (for headphones)
• Monitor health data (for smartwatches)
• Play minigames (for controllers)
• Enjoy a mobile-friendly and desktop-compatible interface

⚠️ This project uses the experimental Web Bluetooth API, which only works on supported browsers like Chrome and only under HTTPS or localhost.

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🔧 Features

• 📂 Select and send files over Bluetooth (split into 512-byte chunks)
• 🕒 Transfer History tab (history auto-deletes after 20 days)
• 📋 Device History tab (see all previously connected devices)
• 🔊 Play a sound when devices connect or disconnect
• 🎵 Music player for headphones
• 🩺 Health monitoring for smartwatches
• 🎮 Minigames for controllers
• 📥 Receive data via BLE characteristic notifications
• 📱 Mobile-friendly and works on desktop
• ⚡ Works offline (PWA)

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📦 UUIDs Used

👀 View UUIDs

Main Service and Characteristics

// File Transfer Service
const SERVICE_UUID     = '8e7c12e0-5f9b-4b57-b6e0-07c58b4fd328';
const WRITE_CHAR_UUID  = '77f57404-5e34-42e7-9502-3f6a3a0e091b';
const NOTIFY_CHAR_UUID = '4dd9a968-c64b-41cd-822c-b9e723582c4e';

Audio Devices (Fones/Caixas de Som)

// Audio Sink (A2DP)
const AUDIO_SINK_UUID = '0000110b-0000-1000-8000-00805f9b34fb';

// Audio Source (A2DP Source)
const AUDIO_SOURCE_UUID = '0000110a-0000-1000-8000-00805f9b34fb';

// Headset Profile (HSP)
const HEADSET_HS_UUID = '00001108-0000-1000-8000-00805f9b34fb'; // Headset
const HEADSET_AG_UUID = '00001112-0000-1000-8000-00805f9b34fb'; // Audio Gateway

// Hands-Free Profile (HFP)
const HANDSFREE_HS_UUID = '0000111e-0000-1000-8000-00805f9b34fb'; // Handsfree
const HANDSFREE_AG_UUID = '0000111f-0000-1000-8000-00805f9b34fb'; // Audio Gateway

// AVRCP (Audio/Video Remote Control)
const AVRCP_UUID = '0000110e-0000-1000-8000-00805f9b34fb';

Game Controllers (Controles de Jogo)

// Human Interface Device (HID)
const HID_SERVICE_UUID = '00001812-0000-1000-8000-00805f9b34fb';

// HID Information
const HID_INFO_UUID = '00002a4a-0000-1000-8000-00805f9b34fb';

// HID Control Point
const HID_CONTROL_POINT_UUID = '00002a4c-0000-1000-8000-00805f9b34fb';

// HID Report Map
const HID_REPORT_MAP_UUID = '00002a4b-0000-1000-8000-00805f9b34fb';

// HID Report
const HID_REPORT_UUID = '00002a4d-0000-1000-8000-00805f9b34fb';

// HID Protocol Mode
const HID_PROTOCOL_MODE_UUID = '00002a4e-0000-1000-8000-00805f9b34fb';

Standard BLE Services

// Audio
const AUDIO_SINK_UUID = '0000110b-0000-1000-8000-00805f9b34fb';

// Battery Service
const BATTERY_SERVICE_UUID = '0000180f-0000-1000-8000-00805f9b34fb';

// Device Information
const DEVICE_INFO_SERVICE_UUID = '0000180a-0000-1000-8000-00805f9b34fb';

// Heart Rate
const HEART_RATE_SERVICE_UUID = '0000180d-0000-1000-8000-00805f9b34fb';
const HEART_RATE_MEASUREMENT_UUID = '00002a37-0000-1000-8000-00805f9b34fb';

// Human Interface Device
const HID_SERVICE_UUID = '00001812-0000-1000-8000-00805f9b34fb';

// Fitness Machine
const FITNESS_MACHINE_SERVICE_UUID = '00001816-0000-1000-8000-00805f9b34fb';
const STEP_COUNT_UUID = '00002a5b-0000-1000-8000-00805f9b34fb';

Smart Device Services (Xiaomi, Huawei, etc.)

// Xiaomi/Realme/Oppo
const XIAOMI_SERVICE_UUID_1 = '0000fee0-0000-1000-8000-00805f9b34fb';
const XIAOMI_SERVICE_UUID_2 = '0000fee1-0000-1000-8000-00805f9b34fb';

// Huawei
const HUAWEI_SERVICE_UUID = '0000fee9-0000-1000-8000-00805f9b34fb';

// Common Characteristics
const COMMON_CHAR_1 = '0000ff07-0000-1000-8000-00805f9b34fb';
const COMMON_CHAR_2 = '0000ff06-0000-1000-8000-00805f9b34fb';
const COMMON_CHAR_3 = '0000ff04-0000-1000-8000-00805f9b34fb';

// Mi Band Specific
const MI_BAND_ACTIVITY_DATA_UUID = '00000007-0000-3512-2118-0009af100700';
const MI_BAND_BATTERY_UUID = '00000006-0000-3512-2118-0009af100700';

🙏 Thank you for everyone's support

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💰 Support

Bluetooth Center is libre, and always will be.
If you find it useful and want to support free and open-source software, please consider donating using the button above.
I footed the bill for the domain and the server, and you can help create and maintain great software by supporting me.
Thank you very much for your contribution!

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🌐 Available Languages

🇧🇷 Português (PT-BR) | 🇺🇸 English (EN) | 🇪🇸 Español (ES) | 🇨🇳 中文 (ZH) | 🇫🇷 Français (FR)

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