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Home / Development Boards & Control Boards / Open Source Mini MP3 Player Module with SD Card Support for Music, Arduino DFPlayer
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Interface Type UART TTL Serial
Supported Formats MP3, WAV
Storage Media Micro SD / TF Card
Max Storage Capacity 32GB
Operating Voltage 3.2V to 5V DC
Peak Current < 15mA
Speaker Output 3W (8 Ohm)
Control Method Serial Commands or IO Buttons
Module Dimensions 20mm x 20mm x 2mm
Compatible Platform Arduino, STM32, ESP8266

5 reviews

A

Anonymous

Apr 02, 2026

Rating: 5/5

Compact and powerful

Fits easily in small enclosures. I used it for a custom doorbell project and it has been reliable for months.

A

Anonymous

Apr 01, 2026

Rating: 5/5

Great for DIY projects

Works perfectly with my Arduino Uno. The library is easy to use and sound quality is surprisingly good for the size.

A

Anonymous

Mar 20, 2026

Rating: 3/5

Decent module

Documentation could be clearer regarding pinout. Had to search online forums to confirm TX/RX connections.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Excellent sound quality

Volume control is very smooth across the 30 levels. Highly recommend for any audio-based automation project.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Good value

Wiring was a bit tricky initially but once connected it works well. Make sure to format the SD card correctly.

5 FAQ

Q: Does it work with 3.3V logic levels?

A: Yes, the module supports operating voltages from 3.2V to 5V, making it compatible with 3.3V microcontrollers.

Q: What file system is required for the SD card?

A: Please format your Micro SD card using FAT16 or FAT32 file system for the module to read files correctly.

Q: Is a speaker included in the package?

A: No, this is a module only. You need to connect an external 8 Ohm 3W speaker separately to the output pins.

Q: Is there an Arduino library available?

A: Yes, search for DFPlayer Mini in the Arduino Library Manager to find compatible open-source libraries for easy integration.

Q: Can it play files from specific folders?

A: Yes, you can organize audio files into folders and control playback via serial commands specifying the folder number.

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