1. Introduzione
This manual provides detailed instructions for the Rakstore DY-SV17F Voice Playback Module. The DY-SV17F is a compact MP3/WAV audio decoding module designed for various applications requiring voice prompts, sound effects, or background music. It features onboard flash storage, a Class D amplifier, and multiple control interfaces including UART serial port, IO trigger, and One_line single bus.
2. Prodotto finitoview
The DY-SV17F module integrates essential components for audio playback in a small form factor. It supports common audio formats and offers flexible control options for integration into embedded systems.
Caratteristiche principali:
- Supports MP3 and WAV decoding formats.
- Wide range of sampling rates supported: 8/11.025/12/16/22.05/24/32/44.1/48 KHz.
- 24-bit DAC output with 90dB dynamic range and 85dB signal-to-noise ratio.
- Onboard 32Mbit (4MByte) flash storage for audio files.
- USB data cable connectivity for updating audio files da un computer.
- Integrated 5W Class D amplifier capable of directly driving 4Ω, 3-5W speakers.
- UART serial port control for playback, pause, song selection, and volume adjustment (up to 65535 songs, 9600 bps baud rate).
- IO trigger playback function: 8 IO ports can trigger 8 tracks or up to 255 tracks.
- One_line single bus serial port control for various playback functions.
- 3 configurable IOs for selecting up to 7 operating modes.
Dimensioni del modulo:
The DY-SV17F module is compact, measuring approximately 26mm by 23mm.

Immagine 2.1: In alto view of the DY-SV17F module, illustrating its compact size with dimensions of 26mm by 23mm. The module features a micro USB port and various integrated circuits.

Immagine 2.2: Angolata view of the DY-SV17F module, providing a clearer perspective of the components and the micro USB interface.
3. Specifiche
| Specificazione | Valore |
|---|---|
| Marca | Rakstore |
| Numero di modello | 1854 (DY-SV17F) |
| Tecnologia di connettività | USB, Serial (UART, One_line), IO Trigger |
| Capacità di archiviazione della memoria | 32 Mbit (4 MByte) Flash |
| Dispositivi compatibili | Personal Computer (for file updates), Microcontrollers |
| Standard audio supportati | MP3, WAV |
| SampSupporto del tasso di cambio | 8/11.025/12/16/22.05/24/32/44.1/48 KHz |
| Uscita DAC | 24-bit, 90dB Dynamic Range, 85dB Signal-to-Noise Ratio |
| Amppiù vivace | 5W Class D (drives 4Ω, 3-5W speakers) |
| Velocità di trasmissione UART | 9600 bps |
| Conteggio unità | 1 Conteggio |
4. Impostazione
Proper setup ensures optimal performance of the DY-SV17F module. Follow these steps for initial configuration and connections.
4.1 Diagramma di pinout
Refer to the pinout diagram below for connecting power, speakers, and control signals.

Immagine 4.1: In basso view of the DY-SV17F module, detailing the pin assignments for power, audio output, and control interfaces.
4.2 Alimentazione
- Connect the module to a stable 3.3V to 5V DC power supply.
- Ensure correct polarity when connecting power to the VCC and GND pins.
4.3 Collegamento degli altoparlanti
- Connect a 4Ω, 3-5W speaker directly to the SPK+ and SPK- pins.
- The onboard Class D amplifier provides sufficient power for these speakers.
4.4 Audio File Caricamento
- Connect the module to a computer using a micro USB data cable.
- The module will appear as a removable storage device.
- Drag and drop MP3 or WAV audio files into the module's storage.
- Garantire l'audio files are properly named and formatted according to the control method used (e.g., 0001.mp3, 0002.wav for sequential playback).
5. Istruzioni per l'uso
The DY-SV17F module offers several methods for controlling audio playback.
5.1 UART Serial Port Control
The UART serial port allows for advanced control over playback functions. The default baud rate is 9600 bps.
- Connect the module's RX/IO1 and TX/IO0 pins to your microcontroller's TX and RX pins, respectively.
- Commands can be sent to control playback, pause, select specific songs (up to 65535), and adjust volume. Refer to the detailed communication protocol in the module's technical datasheet for specific command structures.
5.2 IO Trigger Playback
This mode allows for simple, direct playback by triggering specific IO pins.
- The module supports 8 IO ports (IO1-IO8) for triggering.
- In basic mode, each IO port can trigger a specific track (e.g., IO1 triggers track 1, IO2 triggers track 2).
- Advanced configurations allow 8 IO ports to trigger up to 255 tracks using a combination of pin states. Consult the module's datasheet for specific IO triggering logic and file convenzioni di denominazione.
5.3 One_line Single Bus Serial Port Control
The One_line interface provides another serial control option, simplifying wiring for certain applications.
- Connect the ONE_LINE/IO4 pin to your control device.
- This interface supports functions such as playback, pause, song selection, and volume adjustment. Refer to the module's technical documentation for the specific One_line communication protocol.
5.4 Selezione della modalità operativa
The module features 3 configuration IOs that allow selection of up to 7 different operating modes. These modes define how the module interprets input signals and manages playback. Refer to the module's datasheet for details on configuring these IOs to select the desired operating mode.
6. Manutenzione
To ensure the longevity and reliable operation of your DY-SV17F module, follow these maintenance guidelines:
- Gestione: Handle the module with care to avoid physical damage to components or pins. Avoid static discharge.
- Ambiente: Operate the module in a clean, dry environment. Avoid exposure to extreme temperatures, humidity, or corrosive substances.
- Pulizia: If necessary, gently clean the module with a soft, dry brush or a lint-free cloth. Do not use liquid cleaners.
- Firmware/Audio Updates: Controllare regolarmente le istruzioni del produttore website for any firmware updates that may improve performance or add features. Update audio files as needed via the USB interface.
7. Risoluzione Dei Problemi
If you encounter issues with your DY-SV17F module, refer to the following troubleshooting steps:
- Nessun potere:
- Verify that the power supply is connected correctly (VCC and GND).
- Garantire l'alimentazione voltage rientra nell'intervallo specificato (3.3 V-5 V).
- Nessuna uscita audio:
- Check speaker connections to SPK+ and SPK-.
- Ensure the speaker impedance is 4Ω and power rating is 3-5W.
- Verifica che l'audio files are correctly uploaded and in supported formats (MP3, WAV).
- Check if the volume is set to an audible level via serial control.
- Module Not Responding to Control:
- Controllo UART: Verify RX/TX connections, baud rate (9600 bps), and command format.
- IO Trigger: Check IO pin connections and ensure the correct operating mode is selected for IO triggering. Verify file convenzioni di denominazione.
- One_line Control: Check ONE_LINE/IO4 connection and command protocol.
- Ensure the control device (microcontroller) is sending correct signals.
- USB File Problemi di trasferimento:
- Ensure the USB data cable is functional and properly connected.
- Prova una porta USB diversa sul tuo computer.
- Restart your computer and reconnect the module.
8. Garanzia e supporto
For warranty information and technical support regarding the Rakstore DY-SV17F Voice Playback Module, please refer to the retailer where the product was purchased or contact Rakstore directly through their official support channels. Keep your proof of purchase for warranty claims.