HW-247A Mini MP3 Player Module MP3 Audio Voice Decode Board Supporting Serial Port UNO DF Player TF Card U Disk
Feature:
DF Player Mini is a compact and inexpensive MP3 module that can be directly connected to speakers.
The module can be used alone with the power supply battery, speaker, and buttons, or can be controlled through the serial port, as a module of UNO or any single-chip microcomputer with serial port.
The module itself perfectly integrates the hard decoding of MP3, WAV, and WMA. At the same time, the software supports TF card drive and supports FAT16 and FAT32 file systems.
Through simple serial port commands, you can complete the functions of playing the specified music and how to play the music. There is no need for tedious low-level operations, easy to use, stable and reliable.

Specification:
Product size: 21*21*5mm
Product weight: 5g
Packing size: 50*50*5mm
Package weight: 5g

Technical specifications:
1. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48
2. 24-bit DAC output, dynamic range support: 90dB, signal-to-noise ratio support: 85dB
3. Fully support FAT16, FAT32 file system, support 32G TF card, support 32G U disk, 64M byte NORFLASH
4. Multiple control modes are available. IO control mode, serial port mode, AD button control mode
5. Broadcast voice insertion function, you can pause the background music being played. After the ad is played, return to the background sound to continue playing
6. The audio data is sorted by folder, supporting 100 folders, and 255 tracks can be assigned to every folder
7. 30 levels of volume adjustable, 6 levels of EQ adjustable

Application
1. Car navigation voice broadcast
2. Highway transportation inspection, toll station voice prompt
3. Voice prompts for safety inspections at railway stations and bus stations
4. Voice prompts for power, communications, and financial business halls
5. Voice prompts for vehicle entry and exit verification
6. Voice prompts for border inspection channels
7. Multi-channel voice alarm or equipment operation guidance voice
8. Voice notice for safe driving of electric sightseeing vehicles
9. Automatic alarm for mechanical and electrical equipment failure
10. Fire voice alarm prompt
11. Automatic broadcast equipment, regular broadcast

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2mm measuring deviation due to manual measurement.