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SMP37A-Player USB Speaker MP3 Player with Card Insertion and USB Flash Drive

Overview

Solution Overview:
Guangming Valley presents the SMP37A-Player, a low-cost USB speaker solution with card slot and USB flash drive playback, supporting MP3 playback. Users can achieve this without development. We have a mature solution that allows users to quickly create a Bluetooth speaker with card slot and USB flash drive playback without any code. We provide schematics, a PCB demo (open-source from LCSC, zero-development replica, worth having), and PCB layout guidance.

Solution Advantages

: Low cost, IC cost as low as 1.88 RMB .

Includes card slot and

USB flash drive music playback,

built-in sound effects,

infrared remote control support
, USB sound card, USB speaker

demo, board diagram,

solution block diagram, and

physical product images .

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 00:04:54

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