Resources:
SparkFun Audio Player Breakout – MY1690X-16S: Compact Serial-Controlled MP3/WAV Player
The SparkFun Audio Player Breakout – MY1690X-16S is a versatile, compact, and easy-to-use serial-controlled audio playback module designed around the MY1690X-16S decoder. Supporting both .WAV and .MP3 file formats from a microSD card (FAT16/FAT32, up to 32GB), this board is perfect for embedded projects requiring reliable audio playback. Equipped with a USB-C connector, it mounts as a removable USB drive for easy file transfer, though larger audio files are best loaded via a dedicated microSD reader for faster performance. The built-in 3.5mm TRRS headphone jack delivers clear output for headphones, while an external amplifier can be added for larger speaker projects.
The MY1690X-16S communicates via a 3.3V TTL serial UART interface, offering a full command set to control playback (Play, Pause, Next, etc.), adjust volume/equalizer settings, and query track details such as name, length, and SD card contents. SparkFun provides an Arduino library that makes integration easy, turning complex commands into a simple interactive menu for seamless development. Ideal for hobbyists, makers, and embedded audio system designers, this breakout board ensures flexibility and reliability in audio-driven projects.
Key Features
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MY1690X Serial MP3 Decoder: Supports both .MP3 and .WAV audio file playback.
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Flexible Audio Playback: Audio sampling rate 8–48K, bit rate 8–320Kbps.
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microSD Card Support: FAT16/FAT32 formatted cards up to 32GB.
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Serial UART Command Set: Control playback, volume, EQ, and query statuses over 3.3V TTL UART.
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Arduino Library Support: Pre-written SparkFun Arduino library for simplified control.
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Connectivity Options:
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Board I/O Pins: Includes TX/RX UART, Busy Signal, Card Detect, VIN, and Ground pins with 0.1" spacing.
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Power Supply:
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VIN: 3.4–5V
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VUSB: 5V input via USB-C
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Compact and Easy to Integrate: Perfect for DIY audio projects, embedded systems, and interactive installations.
