
Overview
DFPlayer mini MP3 player is a small and low cost MP3 module player with a simplified output directly to the speaker.
The module can be used as a standalone module with attached battery, speaker and push buttons or used in combination with an Arduino UNO or any other with RX/TX capabilities.
It perfectly integrates hard decoding module which supports common audio formats such as MP3, WAV and WMA.
Besides, it also supports TF card with FAT16, FAT32 file system. Through a simple serial port, users can play the designated music without any other tedious underlying operations.
Application
- Car navigation voice broadcast
- Road transport inspectors, toll stations voice prompts
- Railway station, bus safety inspection voice prompts
- Electricity, communications, financial business hall voice prompts
- Vehicle into and out of the channel verify that the voice prompts
- The public security border control channel voice prompts
- Multi-channel voice alarm or equipment operating guide voice
- The electric tourist car safe driving voice notices
- Electromechanical equipment failure alarm
- Fire alarm voice prompts
- The automatic broadcast equipment, regular broadcast
Tech specs
Supported sampling rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48 |
24 -bit DAC output, support for dynamic range 90dB , SNR support 85dB |
Fully supports FAT16, FAT32 file system, maximum support 32G of the TF card, support 32G of U disk, 64M bytes NORFLASH |
A variety of control modes, I/O control mode, serial mode, AD button control mode |
Advertising sound waiting function, the music can be suspended. when advertising is over in the music continue to play |
30 level adjustable volume, 6 -level EQ adjustable |
Get Inspired

Despite how powerful and high-performance we make our boards, we know some of you always want more – especially in the fast-evolving Industry 4.0! Enter the Portenta Cat. M1/NB IoT GNSS Shield, a new product we developed in partnership with aerospace, defense, transportation and security multinational Thales. It’s what you need to unleash a world of new opportunities for edge computing. By leveraging a Cinterion TX62 wireless module built for highly efficient, low-power IoT applications, the Portenta Cat. M1/NB IoT GNSS Shield delivers optimized bandwidth and performance, while adding global connectivity and positioning capabilities to Portenta and MKR boards. It is the ideal solution for the development of positioning, tracking and remote monitoring applications in industrial settings, including agriculture, public utilities and smart cities. With the new Portenta Cat. M1/NB IoT GNSS Shield, you can: Easily track assets – across the city or worldwide – from personal valuables to entire fleets of vehicles, thanks to the GNSS feature and a choice between GPS, GLONASS, Galileo or BeiDou positioning.Add cellular capabilities to any Portenta boards connected to local sensors, leveraging the Cat.M1/NB IoT GNSS Shield’s connectivity features.Get real-time insight from sensors located worldwide relaying geotagged data.Much more. We're excited to discover what the Arduino community, clients and partners will be able to do with the extended features and top performance provided by this shield. Key benefits Change connectivity capabilities without changing the boardAdd NB-IoT, CAT.M1 and positioning to any Portenta or MKR boardPossibility to create a small multiprotocol router (WiFi - BT + NB-IoT/CAT.M1)Low-power module What can the Portenta Cat. M1/NB IoT GNSS Shield do for you? Here are just a few examples: If you work in agriculture, you can create your own solution for gas detection, optical sensing, machinery alarm systems