Geekcreit DFPlayer Mini MP3 Player Module MP3 Voice Audio Decoder Board For Supporting TF Card U Disk IO/Serial Port/AD for Sale with BTC on


Price: 0.0002244 BTC

Decoder Board

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Product Specification


DC: 3.3-5v
2 colors, Red and black, we will shipped randomly.
DFPlayer Mini is a compact and inexpensive MP3 module can be directly connected to the speaker. Module with battery power, speaker, the keypad can be used alone, or through the serial port control, as the microcontroller with a serial port module. The module itself perfectly integrated hardware decode MP3, WAV, WMA. While the software supports TF card driver to support FAT16, FAT32 file system. Can be done through simple serial commands specified music player, as well as how to play music and other functions, without the cumbersome underlying operating, easy to use, stable and reliable.

Technical Specifications:

1. Supports sampling rates (KHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48 
2. 24-bit DAC output, support range: 90dB, SNR support: 85dB
3. Fully supports FAT16, FAT32 file system, maximum support 32G TF card, support U disk to 32G, 64M bytes NOR FLASH
4. A variety of control modes are available. IO control, serial port, AD button control mode
5. Radio spots language function, you can stop the background music being played. Advertising finished playing background sound continues to play back
6. The audio data is sorted by folder, supports up to 100 folders, folders can be assigned to every 255 Tracks
7. 30 level adjustable volume, six adjustable EQ

1. Car navigation voice broadcast
2. Road transport inspectors, toll stations voice prompts
3. Train, bus safety inspection voice prompts
4. Electricity, communications, financial operating room voice prompts
5. Vehicles into and out of the channel to verify the voice prompts
6. Frontier channel voice prompts
7. Multi-channel voice alarm or voice guidance equipment operation
8. Electric sightseeing bus safety with voice announcement
9. Electrical and mechanical equipment failure alarm
10. Fire alarm voice prompts
11. Automatic broadcast equipment, regular broadcast


Pin number Pin name Function Remark
1 VCC Module power input 3. 3V—5V, 5V is recommended, do not exceed 5. 2V
2 RX UART serial data input  
3 TX UART serial data output  
4 DAC_R Audio output right channel Drive headphones, amplifier
5 DAC_L Audio output left channel Drive headphones, amplifier
6 SPK2 Connect small speaker Drive less than 3W speakers
7 GND Ground Power ground
8 SPK1 Connect small speaker Drive less than 3W speakers
9 IO1 Trigger port Default previous song (long press volume down)
10 GND Ground Power ground
11 IO2 Trigger port Default next song (long press volume plus)
12 ADKEY1 AD port 1 The first song when triggered (long press cycle first song)
13 ADKEY2 AD port 2 Fifth track when triggered (long press cycle fifth track)
14 USB+ USB+ DP Connect U disk or USB port of computer
15 USB- USB- DM Connect U disk or USB port of computer
16 Busy Playback status With audio, output low. No audio, output high
Package included:

1 x DFPlayer Mini MP3 Player Module