Product description: Audio Player Breakout - MP3 and WAV player - MY1690X-16S - SparkFun BOB-28038
Audio Player Breakout is a small board based on the MY1690X decoder, designed to quickly and easily add audio playback functions to electronic projects. The device supports MP3 and WAV files placed on a microSD card (up to 32 GB), formatted in FAT16 or FAT32. When connected via USB Type-C , the module is mounted as a removable drive, which allows easy file management directly from the computer. The UART 3.3 V TTL interface is used for communication, which allows full control of playback, volume and EQ modes from the microcontroller , e.g. Arduino . The sound is output via a 3.5 mm TRRS connector - sufficient for headphones, while for speakers it is recommended to use an external amplifier.
Audio Player Breakout - MP3 and WAV player - MY1690X-16S - SparkFun BOB-28038. 
The Audio Player Breakout is a small board based on the MY1690X decoder, designed to quickly and easily add audio playback functionality.Special Features
- Support for MP3 and WAV files from microSD cards up to 32 GB
- Supports sample rates from 8 kHz to 48 kHz and bitrates from 8 kbps to 320 kbps
- Mounting as mass storage via USB Type-C
- 3.5mm TRRS audio output compatible with headphones
- Control via UART 3.3V TTL (Play, Pause, Next, EQ, volume, track info commands)
- Compatibility with Arduino - a library that facilitates control from the terminal
Practical applications
The module will work well in educational projects, voice notification systems, interactive installations, IoT devices, toys and wherever simple and reliable sound playback is needed. Thanks to support via UART and a ready Arduino library, integration with microcontroller systems is fast and intuitive.
Technical specification of the module
- System: MY1690X-16S
- Supported formats: MP3, WAV
- Sampling Rate: 8 kHz to 48 kHz
- Bitrate: from 8 kbps to 320 kbps
- Supported cards: microSD up to 32 GB, FAT16 / FAT32
- Communication interface: UART 3.3V TTL (TX, RX, Card Detect, Busy)
- Power supply: VIN 3.4 V from 5 V or VUSB 5 V
- Audio output: 3.5mm TRRS connector
- Connectors: USB Type-C, pass-through holes, 2.54 mm pitch
When connected via USB Type-C, the module mounts as a removable drive, allowing you to easily manage files directly from your computer. 
