DFRobot
Evaluation Board for Audio BLE/SPP Pass-through Module - Bluetooth 5.0
An evaluation board for a dual-mode Bluetooth 5.0 module that handles both wireless audio and serial data pass-through simultaneously. It can play audio from...
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An evaluation board for a dual-mode Bluetooth 5.0 module that handles both wireless audio and serial data pass-through simultaneously. It can play audio from U-disk or TF card, stream audio over Bluetooth, handle Bluetooth call control, and run BLE or SPP data pass-through — all at the same time, with simple UART serial control.
The dual-mode design significantly reduces the development complexity of embedding Bluetooth audio and data connectivity into a single product.
Key Features
- Bluetooth 5.0 – Dual mode: audio + BLE/SPP data pass-through simultaneously
- Audio Formats – MP3, WAV, WMA, FLAC, AAC, APE
- Storage Support – U-disk (up to 128GB) and TF (microSD) card
- Bluetooth Call Control – Answer, end, and manage calls wirelessly
- BLE & SPP Pass-through – Transparent serial data bridge over Bluetooth
- UART Control – Simple serial command interface
Specifications
- Power Supply – 3.3V–5V
- Operating Current – 20mA
- Bluetooth Version – 5.0
- Operating Temperature – −40°C to 80°C
- Operating Humidity – 5%RH to 95%RH
- Dimensions – 45 × 42mm
Ideal For
- Developing Bluetooth audio speakers or receivers
- Embedded projects requiring simultaneous audio streaming and BLE data communication
- Prototyping Bluetooth call-handling devices
Package Contents
- 1× Audio BLE/SPP Pass-through Module Bluetooth 5.0 evaluation board
Jargon buster
Plain-language definitions for the technical terms used above.
- BLE
- BLE stands for Bluetooth Low Energy, a Bluetooth mode designed for low power use and broad compatibility with modern phones and computers. It connects well to battery-powered and mobile devices, including Apple hardware, though it behaves differently from Bluetooth Classic and its serial-style profiles.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
Find this product in
Audio & Video
Supplier page — dfrobot.com
Supplier Description · 680.4 KB · Click any page to view full size
DFR0782 audio ble spp pass through module schematics V1.0
Schematic · 64.0 KB · Click any page to view full size
DFR0782 audio ble spp pass through module datasheet V1.0
Datasheet · 1.4 MB · Click any page to view full size
Source Code
Open-source libraries, firmware & example projects for this product
This Bluetooth module features Bluetooth/U-disk/TF-card playback, and Bluetooth call function, supporting simple and clear serial port control function, BLE pass-through, and SPP pass-through functions. The highlight of this product is the dual-mode Bluetooth, which also means that it can run the Bluetooth audio playback and data transmission at the same time, greatly reducing the development difficulty of embedded Bluetooth in other products.
239aca7
over 4 years ago
· 5 commits
- examples 格式再次修改 over 4 years ago
- resources 修改格式 over 4 years ago
- DFRobot_BT401.cpp 修改格式 over 4 years ago
- DFRobot_BT401.h 修改格式 over 4 years ago
- keywords.txt 1.st over 5 years ago
- library.properties 修改格式 over 4 years ago
- LICENSE 1.st over 5 years ago
- README.md Update README.md over 4 years ago
- README_CN.md 格式再次修改 over 4 years ago
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