Evaluation Board for Audio & BLE/SPP Pass-through Module (Bluetooth 5.0)

The Evaluation Board for Audio & BLE/SPP Pass-through Module is a versatile development platform designed for prototyping wireless audio and serial communication projects. It allows makers, educators, and engineers to evaluate Bluetooth 5.0 capabilities with ease. The board is ideal for testing wireless data pass-through alongside local media playback in embedded designs.

Bluetooth 5.0 wireless connectivity

The board operates on the Bluetooth 5.0 standard to provide stable wireless performance. It supports both wireless audio streaming and dual-mode data transfer for embedded prototyping.

BLE and SPP pass-through modes

Integrated support for BLE and SPP pass-through enables transparent serial data communication with host devices and mobile applications. This dual-mode capability allows for broad compatibility across modern and legacy Bluetooth hardware.

UART interface for control

The board features a UART interface for sending commands and configuring module behaviour via serial communication. This simplifies connection to microcontrollers such as Arduino, ESP32, or STM32 platforms.

Multi-format audio decoding

Onboard decoding supports MP3, WAV, and FLAC audio formats for flexible playback options. This makes the board suitable for projects requiring voice prompts, sound effects, or music playback.

TF card and U-disk support

Audio files can be loaded directly from a TF card or standard U-disk storage device. The board supports storage capacities of up to 128GB for large media libraries.

Downloads & documentation

• Product wiki (DFRobot)