✍ DFPlayer or DF player Mini is a compact MP3 module that can be connected directly to the speaker. Module with battery power supply, speaker, keypad can be used alone, or through the serial port control, as the Arduino UNO or any microcontroller with a serial port module.

✍ The module itself perfectly integrated hardware decode MP3, WAV, WMA’s. While the software supports TF card driver to support FAT16, FAT32 file system. Can be done by simple serial command plays the specified music, as well as how to play music and other functions, without tedious low-level, easy to use, stable and reliable.

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▼ Features:
Supported sampling rates (kHz): 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48
24 -bit DAC output, support for dynamic range 90dB, SNR support 85dB
Fully supports FAT16, FAT32 file system, maximum support 32G of the TF card, support 32G of U disk, 64M bytes NOR FLASH
A variety of control modes, I/O control mode, serial mode, AD button control mode
Advertising sound waiting for function, the music can be suspended. when advertising is over in the music continues to play
Audio data sorted by folder and supports up to 100 folders, every folder can hold up to 255 songs
30 level adjustable volume, 6 -level EQ adjustable

▼ Specifications:
Power supply: 3.2 – 5.0 V
Current consumption (standby): ~ 20 mA
Supported file types: MP3 and WAV
Supported SD cards: Micro SD(HC) up to 32 GB
Format: FAT16 / FAT 32
Communication: Seriell RX/TX, baud rate: 9600
USB port: USB 2.0 (Flashdrive / PC)
Audio outputs: Loudspeaker – up to 3W (amplifier on board)
DAC (for headphones or amplifiers)


Tutorial:
https://wiki.dfrobot.com/DFPlayer_Mini_SKU_DFR0299