SparkFun Audio Player Breakout – MY1690X-16S

Effortlessly add audio to your projects with the compact SparkFun Audio Player Breakout, a serial-controlled MP3/WAV player with microSD support and easy file management via USB.

The SparkFun M71690X-16S Audio Player Breakout is a compact serial-controlled audio player designed around the MY1690X-16S decoder that supports both .WAV and .MP3 audio files played from a connected microSD card formatted to FAT16 or FAT32. The board includes a USB-C connector to mount it as a removable USB drive on a connected computer, a µSD card slot for connecting a compatible SD card, and a 3.5mm TRRS connector for headphone audio output. Controlling the MY1690X-16S over serial does require a USB-to-UART conversion, so a development board like the RedBoard Plus is required.

The MY1690X-16S operates over a serial-UART interface at 3.3V TTL using a command set to control audio playback (Play, Pause, Next, etc.), volume and equaliser settings, and query statuses (SD card contents, track name/length, etc.). We’ve written an Arduino library that simplifies this to a simple interactive text menu for all available commands to control the Audio Player Breakout with an Arduino development board.

When plugged in over USB, the MY1690X-16S automatically mounts as a removable USB drive to transfer and view audio files to a connected microSD card. However, our testing found the transfer speed to be fairly limited. We recommend loading large audio files directly to the microSD card using a USB reader or plugging the card directly into an SD card port on a computer.

The board’s audio output is powerful enough to work well with headphones but requires an amplifier for output on larger speakers.

Features & Specifications

• MY1690X Serial MP3 Decoder
  • Compatible with .MP3 and .WAV audio files
  • Audio Sampling Rate: 8-48K
  • Bit Rate: 8-320Kbps
  • FAT16 or FAT32 SD formats
  • MicroSD cards up to 32GB
  • Serial UART Command Set
• Supply Voltage:
  • VIN: 3.4-5V
  • VUSB: 5V
• 0.1in.-spaced through-hole headers
  • MY1690X UART (TX/RX)
  • MY1690X Card Detect
  • MY1690X Busy Signa
  • Power (VIN) and Ground
• 1x USB-C Connector
  • Mounts as removable USB drive
• 3.5mm TRRS Audio Jack
• MicroSD Card Slot

Resources

• Schematic
• KiCad Files
• Board Dimensions
• Hookup Guide
• Datasheet – MY1690X
• SparkFun MY1690X MP3 Decoder Arduino Library
• GitHub Hardware Repo

Package Contents

• 1x SparkFun Audio Player Breakout – MY1690X-16S