HW-247 DF MP3 Player Audio Voice Module

HW-247 DF MP3 Player Audio Voice Module

The HW-247 DF MP3 Player Audio Voice Module is a compact and versatile audio playback solution designed for embedded applications. Based on the DFPlayer Mini, this module supports MP3 and WAV formats and can be controlled either standalone or via UART serial communication with microcontrollers such as Arduino, ESP32, or STM32.

It features a built-in 3W mono amplifier for direct speaker connection, as well as DAC output for external audio amplification. The module reads audio files from a microSD card (up to 32GB, FAT16/FAT32 format) and plays them using simple command sequences or onboard buttons.

Ideal for DIY projects, talking gadgets, audio feedback systems, and interactive applications, the HW-247 delivers reliable and clear audio output in a small form factor.

Features

• Support mp3, WAV and wma decoding
• Support FAT16 and FAT32 file systems
• Support maximum 32g microSD card, 32g U disk and 64M byte nor flash
• Support sampling rate (kHz): 8/11.025/12/16/22.05/24/32/4 4.1/48
• 24 bit DAC output, dynamic range support: 90dB, SNR support: 85dB
• Various control modes are available: IO control mode, serial port mode and ad key control mode
• It can be used with power supply battery and loudspeaker.
• Up to 100 folders are supported, and 255 tracks can be
• allocated to each folder.
• 30 level volume adjustable, 6 level EQ adjustable

Specifications

• Working voltage: 3.3v-5v, 5V recommended, 5.2v maximum
• Interface: needle arrangement interface
• Dimension: 20.65mm x 20.45mm x 1.6mm

Applications

• car navigation voice broadcast
• road transport inspectors, toll voice prompts
• train station, bus station voice prompts security check
• electric power, telecommunications, financial operating room voice prompts
• the vehicle into or out of the channel to verify the voice prompts
• border control channel voice prompts 
• multi-channel voice alarm or voice guidance equipment operation
• electric sightseeing bus safety with voice notices
• electrical and mechanical equipment failure alarm
• fire alarm voice prompts
• automatic broadcasting equipment, regular broadcast

Package Includes

• 1x HW-247 DF MP3 Player Audio Voice Module