STM32 ODE function pack for half-duplex voice streaming over Bluetooth low energy

FP-AUD-BVLINK1 is an STM32 ODE function pack that performs voice streaming over Bluetooth low energy in a half-duplex configuration. The application runs on the STM32 Nucleo and includes drivers and middleware for Bluetooth low energy (BlueNRG-MS) and MP34DT01-M or MP34DT04-C1 digital MEMS microphones.

The expansion is built on STM32Cube software technology to ease portability across different STM32 microcontrollers. The software comes with sample implementations of the drivers for X-NUCLEO-IDB05A1 plus X-NUCLEO-CCA02M1, when connected to a NUCLEO-F401RE, NUCLEO-L476RG or NUCLEO-L053R8 board.

FP-AUD-BVLINK1 is also compatible with SensorTile (STEVAL-STLKT01V1) and BlueCoin (STEVAL-BCNKT01V1).

Key Features

  • BlueVoiceADPCM, half-duplex voice-over-Bluetooth low energy communication profile
  • Very low power Bluetooth low energy single-mode network processor, compliant with Bluetooth specification 4.1
  • Complete middleware to build applications using digital MEMS microphones (MP34DT01-M or MP34DT04-C1)
  • Digital audio signal acquisition and processing
  • Audio input class USB driver to allow a device to be recognized as a standard USB microphone
  • Easy portability across different MCU families thanks to STM32Cube
  • Free, user-friendly license terms
  • Sample implementation available for board X-NUCLEO-IDB05A1 plus X-NUCLEO-CCA02M1 connected to a NUCLEO-F401RE, NUCLEO-L476RG or NUCLEO-L053R8 board
  • Sample implementation available for SensorTile (STEVAL-STLKT01V1) and BlueCoin (STEVAL-BCNKT01V1)
  • Compatibility with ST BlueMS app (v3.0.0 or higher), available for Android™ and iOS™




Technical Documentation

Product Specifications
Description Version Size
DB3255 DB3255: STM32 ODE function pack for half-duplex voice streaming over Bluetooth low energy 1.0 241 KB
User Manuals
Description Version Size
UM2196 UM2196: Getting started with the FP-AUD-BVLINK1 STM32 ODE function pack based on half-duplex voice streaming over BLE 1.0 4 MB

Presentations & Training Material

Description Version Size
FP-AUD-BVLINK1_Quick_start_guide 1.0 3 MB
STM32 and STM8 embedded software solutions 6.0 2 MB


License Agreement
Description Version Size
SLA0077 SLA0077: SOFTWARE LICENSE AGREEMENT ("Agreement") 2.7 126 KB

Tools and Software

STM32 Open Development Environment
Evaluation Tools
Product Evaluation Tools
Solution Evaluation Tools

Get Software

Part Number Software Version Marketing Status Supplier Download
FP-AUD-BVLINK1 1.0.0 Active ST