Key Features
- Built‑in MP3 and WAV format decoder for digital audio playback.
- Supports playback from SD card or USB flash drive.
- Multiple control modes: UART serial, parallel port, and key control.
- 24‑bit DAC output with high dynamic range and SNR.
- Onboard dual 3 W amplifier to directly drive speakers (in many variants).
- Adjustable volume levels (e.g., 30 levels typical).
- Compact PCB module suitable for embedded integration.
Technical Specifications
- Supported Formats: MP3, WAV.
- Sampling Rates: 8/11.025/12/16/22.05/24/32/44.1/48 kHz.
- Audio Output: 24‑bit DAC; onboard speaker drivers (varies by version).
- Control Interfaces: UART (TTL), parallel port, push buttons.
- Storage Interfaces: SD card slot, USB interface.
- Operating Voltage: Typical 5 V DC (range ~3.3 V–5 V).
- Module Size: ~40 × 40 mm (varies).
- Working Temperature: Standard industrial range (e.g., –40 °C to +80 °C).
Applications
- Audio announcements in automation systems
- Alert tone generation and alarms
- Interactive voice prompts for kiosks and appliances
- Robotics and embedded sound effects
- Microcontroller‑based audio projects (Arduino, ESP32, Raspberry Pi)
Package Includes
- 1 × FN‑M22P MP3 Sound Playback Module (without USB/SD media or speakers)
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