The FN-M10P is a simplified, micro-embedded serial MP3 module that features a perfectly integrated MP3 and WMV hardware decoder chip. It is designed for stability and reliability, providing a simple way to play back specified sound files through serial commands or AD key control.

Specifications

• Supported Formats: MP3 and WAV hardware decoding.
• Storage: Supports micro SD cards and USB flash drives up to 32GB (FAT16/FAT32).
• Audio Output: 24-bit DAC output with 90dB dynamic range and 85dB SNR.
• Operating Voltage: DC 3.3V to 5.0V (Typical: DC 4.2V).
• Rated Current: < 15mA>.
• Communication Interface: UART RS232 serial control (3.3V TTL) and AD key control.
• Baud Rate: 9600 bps.
• Operating Temperature: -40C to +80C.

Operating Modes

• UART Mode: Supports standard asynchronous serial communication for full control over playback, volume, and EQ.
• AD-Key Mode: Facilitates control via a simple resistor ladder and push buttons.
• USB Mode: Can be connected directly to a PC via USB for content management.

Features

• Extensive File Support: Can manage up to 3000 audio files in the root directory or up to 99 folders with 255 tracks each.
• Inter-cut Advertisements: Supports pausing music to play an advertisement and then automatically resuming the original track.
• Customizable Playback: Includes random, repeat/loop, and single-repeat playback options.
• Adjustable Audio: Features 30 levels of volume and 6 EQ modes (Normal, Pop, Rock, Jazz, Classic, Bass).
• Busy Signal: Pin 4 provides a low-level signal during playback and high-level during standby.

Pin Configuration

1. VDD: Power input (DC 3.3V-5V, Max 5.2V).
2. DAC_L: Audio output left channel (for earphones or external amplifiers).
3. DAC_R: Audio output right channel.
4. Busy: Status indicator (Low = Working, High = Standby).
5. RX: UART serial input (3.3V TTL).
6. TX: UART serial output (3.3V TTL).
7. GND: Ground (Power/audio).
8. ADKEY: Triggering output port for AD key control.
9. USB+: USB data positive (DP).
10. USB-: USB data negative (DM).

Usage Tips

• File Naming: Directly in the root, rename files from 0001.mp3 to 3000.mp3. In folders (01-99), rename tracks from 001.mp3 to 255.mp3.
• Copying Sequence: Files in the root are read in the physical sequence they were copied.
• Logic Level: The module uses 3.3V TTL. If using a 5V MCU, a 1K resistor is recommended on the RX line.
• Speaker Output: While the module provides DAC outputs, an external amplifier is typically needed to drive a speaker (see reference circuits for 8002B amplifier).
• UART Feedback: Users can choose to receive an ACK (0x41) from the module to confirm successful command reception