Description
DFPlayer Mini is a compact and low-cost MP3 module that can be directly connected to the speaker. 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 Arduino UNO or any single-chip microcomputer with a serial port. The module integrates MP3, WAV, WMA hard decoding. At the same time, the software supports TF card driver and FAT16 and FAT32 file systems. The functions of playing specified music and how to play music can be completed through simple serial port commands, without the need for cumbersome low-level operations, easy to use, stable and reliable.
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, maximum support 32G TF card, support 32G U disk, 64M bytes NORFLASH
4. a variety of control modes are optional. IO control mode, serial port mode, AD button control mode
5. broadcast language insertion function, you can pause the background music being played. After the advertisement is played, return to the background sound and continue to play.
6. The audio data is sorted by folder. Up to 100 folders are supported. Each folder can be assigned 255 tracks. The volume of 7 and 30 levels can be adjusted, and the EQ of 6 levels can be adjusted.
application
1. Car navigation voice announcement
2. Road transport inspection, toll booth voice prompt
3. Railway station, bus station security check voice prompt
4. Electricity, communication, financial business hall voice prompt
5. Vehicle entrance and exit channel verification voice prompt
6. Voice prompts for border inspection channels
7. multi-channel voice alarms or device operation guidance voices
8. voice announcements for safe driving of electric sightseeing cars
9. automatic alarms for mechanical and electrical equipment failures
10. fire alarms for voice alarms
11. automatic broadcast equipment, regular broadcast
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