Product description: Serial MP3 Player Shield - MY1690X - Shield for Arduino - SparkFun DEV-28021
The Serial MP3 Player Shield with the MY1690X chip is a practical extension for Arduino boards that allows you to add audio playback from a microSD card without additional components. The player supports MP3 and WAV files from cards up to 32 GB formatted in FAT16 or FAT32 . Control is via the UART interface, and the sound is output to a standard 3.5 mm TRRS connector - just plug in your headphones. The USB Type-C connector allows you to mount the memory as a removable drive on your computer, making it easy to copy files. Additional elements such as the reset button, power and playback LEDs , and the Qwiic connector increase functionality and convenience of use. An amplifier for larger speakers can be connected to the audio output.
Serial MP3 Player Shield - shield for Arduino - SparkFun DEV-28021. 
The Serial MP3 Player Shield with MY1690X is a practical extension for Arduino boards that allows you to add audio playback functionality from a microSD card.Special Features
- Plays MP3 and WAV files from microSD up to 32 GB
- Supports FAT16 and FAT32 and up to 65536 audio files
- USB Type-C port for easy file transfer
- UART 5 V interface - compatible with Arduino
- 3.5mm TRRS audio output for headphones or amplifier
- Qwiic connector for easy connection of I2C devices
- Built-in LEDs - Power and Playback Status
- Reset button - quick access to restart the system
- Standard Arduino Uno R3 Shield Format
Practical applications
The module is perfect for projects such as interactive devices, alarm systems, voice notifications, electronic games and educational installations. Thanks to simple control and ready-made audio functionality, it is possible to quickly implement sound playback without having to write complicated code.
Technical specification of the module
- Chip: MY1690X (MP3 / WAV decoder)
- File format: MP3, WAV
- Sampling Rate: 8 kHz to 48 kHz
- Bitrate: from 8 kbps to 320 kbps
- Card support: microSD up to 32 GB, FAT16 / FAT32
- Communication interface: UART 5V
- USB connector: USB Type-C
- Audio output: 3.5mm TRRS
- Qwiic connector: horizontal, for I2C devices
- Fuse: 6V/1A (resettable)
- ESD protection: protection diodes on USB lines
- Button: Reset
- Board format: Arduino Uno R3 compatible (ICSP 2x3 connector)
- LEDs: Power, "Playing" status
- Dimensions: 53.34 x 59.69 mm
The USB Type-C connector allows you to mount the drive as a removable drive on your computer, making it easier to copy files. 
