Mini MP3 Player Module For Arduino

Mini MP3 Player Module For Arduino is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. A module that allows you to play music files directly from micro SD card via the built-in slot. It communicates through the UART interface – pins RX and TX, with a microcontroller. DFPlayer works with Mp3, WAV, WMA, supports file systems FAT16 and FAT32.

The product is compatible with Arduino

The manufacturer provides a library along with a connection instruction for Arduino users.

Technical Specifications:

Supports MP3 and WAV file decoding
Supports FAT16 and FAT32 file system
Supports sampling rates (kHz): 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48
24-bit DAC output supports 90dB and SNR 85dB
Supports stand-alone pushbutton (AD Key) control mode
Supports serial control by microcontroller
Supports USB connection for direct file upload/download to SD card
Supports up to 32GB micro-SD card
Supports thousands of files for playback
supports random playback
Built-in 3-watt amplifier can directly drive a small speaker
30 levels adjustable volume and 6 levels adjustable EQ
Busy output available for monitoring play state
3.3V logic compatible
5V module operation
Leads: soldered goldpin connectors 2.54 mm pitch

TECHNICAL SPECIFICATIONS

Operating Voltage
4.5 – 5VDC (recommended)

MP3 Audio Formats
8/11.025/12/16/22.05/24/32/44.1/48 (kHz)

MP3 Audio Decoding
11172-3 and ISO13813-3 Layer3 audio decoding

USB Port
USB 2.0

UART Port
3.3V TTL Level Serial Port

Module Dimensions
20.5 x 20.5mm

Insights

PIN
DESCRIPTION

VCC
Voltage in the range from 3.2 to 5.0 V.

RX
Serial interface UART – receiver.

TX
Serial interface UART – transmitter.

DAC_R
Audio output for headphones or amplifier – right.

DAC_L
Audio output for headphones or amplifier – left.

SPK2
Output for speaker with power up to 3 W.

GND
Mass.

SPK1
Output for speaker with power up to 3 W.

IO1
Liberating input, short hold, switches track, long silences.

GND
Mass.

IO2
Liberating input, short hold, switches track, long increases the volume.

ADKEY1
Liberating input,

ADKEY2
Liberating input

USB+
Data line of interface USB D+.

USB
Data line of interface USB D-.

BUSY
The status output. Low state means that the currently playing track, high on the contrary.

Applications

Car navigation voice broadcast;
Road transport inspectors, toll stations voice prompts;
Railway station, bus safety inspection voice prompts;
Electricity, communications, financial business hall voice prompts;
Vehicle into and out of the channel verify that the voice prompts;
The public security border control channel voice prompts;
Multi-channel voice alarm or equipment operating guide voice;
The electric tourist car safe driving voice notices;
Electromechanical equipment failure alarm;
Fire alarm voice prompts;
The automatic broadcast equipment, regular broadcast

It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.