M5Stack AudioPlayer Unit is a compact MP3 player module featuring integrated decoding, powered by the N9301 audio decoder chip and a built-in microSD card slot. It supports UART communication via Grove interface, allowing easy control of MP3 playback through serial commands. Audio is delivered through a standard 3.5mm headphone jack, ensuring clean, high-quality output.
Ideal for applications such as smart home assistants, voice tour guides, industrial alarms, medical voice prompts, and STEAM educational projects, this unit offers a streamlined solution for embedding audio into various systems. Its small form factor and serial-triggered playback make it especially suitable for space-constrained or embedded environments requiring flexible, high-fidelity audio functionality.
Features
🎵 N9301 audio decoding chip
🔌 UART communication interface
🎧 3.5mm stereo audio jack
🎶 Supports MP3 & WAV formats
💾 Compatible with FAT16/FAT32 file systems
📀 Supports microSD cards up to 32GB
💻 Development platforms: - ⚙️ UiFlow1 - ⚙️ UiFlow2 - 💡 Arduino IDE
Includes
- 1 x Unit AudioPlayer
- 1 x HY2.0-4P Grove connection cable (20cm)
Application
- Intelligent voice interaction devices (such as smart home control centers, voice guides)
- Industrial automation alarm systems
- Medical device voice prompt terminals
- STEAM education
Specifications
| Specification | Parameter |
|---|---|
| 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 5.01V@25.17mA; Standby: DC5.01V@7.33mA; Sleep: DC 5.02V@871.24uA |
| 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 |
Schematic Diagram
Unit AudioPlayer Schematics PDF
PinMap
HY2.0-4P
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.C | GND | 5V | UART_TX | UART_RX |
Schematics
Unit AudioPlayer Schematics PDF