Audio Player Unit (N9301)

The Audio Player Unit is an MP3 playback module featuring an N9301 decoding chip, a microSD card slot, UART control via the Grove interface, and a 3.5mm audio output, providing a compact solution for embedded projects that require reliable audio playback.

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The M5Stack Audio Player Unit is an MP3 player unit with built-in decoding, equipped with the audio decoding chip N9301 and a microSD card slot. Users can control the playback of MP3 files on the microSD card through Grove's UART interface.

The audio signal is output through a 3.5mm jack, providing clear audio output. This product is suitable for smart voice interaction devices (such as smart home controllers and voice tour guides), industrial automation alarm systems, medical equipment voice prompt terminals, STEAM education, and other scenarios. It can meet the demands of multiple industries for high-quality audio playback and flexible control, especially for embedded projects that require audio triggering through serial port instructions and integrated miniaturized audio solutions.

MicroSD card not included.

Features

• N9301 audio decoding chip
• UART communication interface
• 3.5mm stereo jack
• Supports MP3 and WAV audio formats
• Supports FAT16/FAT32 file systems
• Maximum support for a 32GB microSD card
• Development platforms
  • UiFlow1
  • UiFlow2
  • Arduino IDE

Specifications

Audio decoding chip	N9301
Storage interface	microSD card slot
Communication method	UART serial communication. Default baud rate: 9600bps@8N1
Audio output interface	3.5mm stereo jack
Power consumption	Operating: DC [email protected]; Standby: [email protected]; Sleep: DC [email protected]
Product Size	48.0 x 24.0 x 8.0mm
Product weight	7.3g
Package Size	138.0 x 93.0 x 9.0mm
Gross weight	12.8g

Resources

• Product Documentation

Package Contents

• 1 x Audio Player Unit (N9301)
• 1 x Grove connection cable (20cm)

MicroSD card not included.