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

Evaluation Board for Audio & BLE/SPP Pass-through Module – Bluetooth 5.0 integrates wireless audio playback, storage media decoding, and bidirectional data communication within a compact embedded development platform. This dual‑mode Bluetooth audio and data module supports playback from Bluetooth streaming, U‑disk, and TF card while simultaneously enabling serial communication control. Built for embedded integration, the multimedia communication board combines audio codec capability with BLE and SPP pass‑through data channels, simplifying wireless connectivity in smart electronics, IoT hardware, and custom audio systems where both media playback and wireless data exchange must coexist.

Note: The AUX interface has been discontinued for this product.

Dual‑Mode Bluetooth Audio and Data Operation

Integrated Bluetooth 5.0 technology enables simultaneous wireless audio playback and bidirectional data transmission. This embedded Bluetooth communication board combines BLE and SPP pass‑through channels with standard Bluetooth audio streaming, allowing microcontrollers to exchange data while maintaining continuous media playback. Such architecture significantly reduces firmware complexity in projects requiring both control communication and audio output, including smart speakers, voice‑enabled devices, and wireless control terminals.

Comprehensive Audio Playback Support

The multimedia decoding module supports multiple popular audio formats including MP3, WAV, WMA, FLAC, AAC, and APE. Local storage playback from U‑disk or TF card up to 128GB allows standalone audio systems without additional decoding hardware. Combined with Bluetooth streaming capability, this wireless audio interface board functions as a versatile audio source solution for embedded sound playback systems, interactive installations, and compact multimedia devices.

UART Serial Control for Embedded Integration

A straightforward UART communication interface provides simple serial command control for playback management, Bluetooth functions, and data pass‑through operation. This serial‑controlled Bluetooth audio module integrates easily with common microcontroller platforms and embedded processors. Clear command structure and pass‑through capability make the board suitable for rapid prototyping and production designs requiring wireless communication alongside audio functionality.

Suitable applications include smart audio terminals, wireless control panels, embedded multimedia equipment, IoT voice systems, and interactive electronic installations. Combining Bluetooth audio streaming, local storage playback, and BLE/SPP data transmission within a single compact board enables efficient development of connected audio devices and multifunction wireless electronics.