The DF Player Mini MP3 Player Module is a standalone serial MP3 player that reads audio files from a TF card and outputs decoded audio through an onboard 24-bit DAC. It communicates over UART serial at 9600 baud, accepting commands from Arduino, ESP32, or any microcontroller with a serial port. The df mini player supports FAT16 and FAT32 file systems on TF cards up to 32GB. Sampling rates span 8kHz to 48kHz, covering voice-grade to CD-quality audio in one compact board.
The module requires a 1K resistor on the TX line when connecting to Arduino to avoid communication errors. Without it, commands occasionally fail silently. The non-obvious detail here is the 24-bit DAC resolution, which is higher than most budget MP3 modules. At 48kHz sampling, audio quality is noticeably cleaner than 8-bit PWM audio output found on basic Arduino sound shields.
The df player mini mp3 player is used by engineering students across India for smart projects, museum exhibit audio guides, and voice-alert security systems. The mini df player module measures and fits inside enclosures where larger audio boards cannot. Available from StemVolt, it’s trusted by students and professionals for consistent results in electronics.
Related Product:
- Checkout Mini Micro SD Card Reader Module
Features:
- 24-bit DAC delivers 48kHz sampling rate for clean audio output
- UART serial interface works at 9600 baud with Arduino directly
- Sampling range of 8kHz to 48kHz covers voice and music playback
Technical specifications:
| Specification | Details |
|---|---|
| Module Type | MP3 Mini Player |
| Supported File System | FAT16, FAT32 |
| Audio Output | 24-bit DAC |
| Storage Support | TF card up to 32GB |
| Sampling Rates | 8 kHz to 48 kHz |
| Dimensions | 20 x 20 x 11 mm |
Applications:
- Arduino doorbell plays MP3 chime using DF Player Mini MP3 Player Module
- Smart security system announces voice alerts through df player mini module output
- RFID attendance system speaks student name using df mini player serial command
Package Includes:
- 1 x DF Player Mini MP3 Player Module














Sanjay Singh –
Quality exceeded expectations, secure packaging and fast delivery made it ideal for robotics projects.
Amit Singhal –
Impressed with the quality
Pradeep Choudhary –
DF player mini worked perfectly with Arduino, providing reliable MP3 playback and simple serial communication.
Devraj Shekhawat –
Smooth delivery process
Rahul Kulkarni –
No disappointment with the performance
Mitesh Nambiar –
After-sale support was helpful
Anmol Chatterjee –
Documentation could be more detailed for beginners
Karthik Srinivasan –
Tamper-proof packaging was excellent