DFPlayer Mini MP3 Player Module with TF Card Slot and UART
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Prices updated: 12 Oct 2026
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About this product
The DFPlayer Mini is a compact MP3 playback module that reads audio files from a microSD (TF) card or USB drive and plays them through a built-in 3 W amplifier. It is controlled over a serial UART link, or through I/O and ADC inputs, and is widely used for voice prompts and sound effects in Arduino projects.
Specifications
- Supported formats
- MP3, WAV, WMA
- Storage
- microSD (TF) card, USB drive
- File system
- FAT16 / FAT32
- Control interface
- UART serial, I/O, ADC
- Serial baud rate
- 9600
- Built-in amplifier
- 3 W
Frequently asked questions
How do I wire the DFPlayer Mini to an Arduino?
Connect VCC and GND, then cross TX and RX between the module and the Arduino. A series resistor (commonly 1 kΩ) on the module's RX line is widely recommended, and the speaker connects to the SPK1 and SPK2 outputs. Check the datasheet for your specific board.
How should I name and organize files on the microSD card?
Format the card as FAT16 or FAT32 and name the files and folders according to the numbering scheme in the module's datasheet. Following the required naming is necessary for the module to play tracks by number.
