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DY-SV17F MP3 Voice Playback Module — 4MB Flash, 5W Amplifier, IO Trigger, UART, Arduino
DY-SV17F MP3 Voice Playback Module 4MB Flash, 5W Amplifier, IO Trigger, UART, Arduino
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DY-SV17F MP3 Voice Playback Module — 4MB Flash, 5W Amplifier, IO Trigger, UART, Arduino
The DY-SV17F is a standalone MP3 audio playback module with 4MB onboard SPI flash storage, a built-in 5W Class D mono amplifier, and dual control interfaces: IO trigger (up to 5 GPIO-triggered audio files) and UART serial control (up to 255 audio files). Audio files are uploaded via USB from a PC using the provided software. With 3.3V–5V supply compatibility and direct speaker output (no external amplifier needed), it is the most capable ready-to-use voice prompt and sound effect module for Arduino, ESP32, and embedded product applications.
Key Specifications
| Parameter | Value |
|---|---|
| Audio Format | MP3 (8kHz–48kHz sample rate) |
| Onboard Flash | 4MB SPI flash (stores ~60–120 minutes of voice prompts) |
| Amplifier | 5W Class D mono (direct speaker output) |
| Speaker Impedance | 4Ω or 8Ω |
| Control Interfaces | IO trigger (5 pins) + UART serial (9600 baud) |
| Max Audio Files (UART) | 255 files |
| Max Audio Files (IO) | 5 files (one per IO pin) |
| Audio Upload | USB (PC software, drag-and-drop) |
| Supply Voltage | 3.3V – 5V |
| Operating Temperature | -20°C to +70°C |
DY-SV17F vs DFPlayer Mini vs JQ8400
| Feature | DY-SV17F | DFPlayer Mini | JQ8400 |
|---|---|---|---|
| Storage | 4MB onboard flash | MicroSD card (up to 32GB) | 8MB onboard flash |
| Amplifier | 5W built-in | 3W built-in | 1W built-in |
| IO trigger | Yes (5 pins) | No | Yes |
| UART control | Yes (255 files) | Yes (unlimited) | Yes |
| Audio upload | USB (PC software) | MicroSD card swap | USB (PC software) |
| Best for | Fixed voice prompts, product integration | Large audio library, music player | Compact voice prompt |
Why Choose DY-SV17F?
- 5W built-in amplifier — drives a speaker directly, no external amplifier IC needed
- 4MB onboard flash — no SD card to lose or corrupt, reliable for product deployment
- Dual control modes — IO trigger for simple 5-file applications, UART for 255-file complex systems
- USB audio upload — update audio files via USB without disassembling the product
- 3.3V–5V supply — compatible with Arduino (5V) and ESP32/STM32 (3.3V)
Compatible With
- Arduino UNO/Nano: SoftwareSerial UART at 9600 baud for UART control mode
- ESP32 / ESP8266: Hardware UART at 3.3V
- STM32: USART peripheral
- IO trigger mode: Connect GPIO pin to IO1–IO5 — pull LOW to trigger corresponding audio file
- Speaker: 4Ω or 8Ω speaker, 1–5W rated
Frequently Asked Questions
Q: How do I upload audio files to DY-SV17F?
A: Connect the module to a PC via USB. Use the DY-SV17F PC software (provided by manufacturer) to format the flash and upload MP3 files. Files are numbered sequentially (001.mp3, 002.mp3, etc.) and assigned to IO pins or UART commands. The software handles file conversion and flash programming automatically.
Q: How do I trigger audio playback from Arduino via UART?
A: Connect DY-SV17F TX to Arduino RX, RX to Arduino TX (via SoftwareSerial). Send the play command: SoftwareSerial mySerial(10, 11); mySerial.begin(9600); byte cmd[] = {0xAA, 0x07, 0x02, 0x00, 0x01, 0xB4}; mySerial.write(cmd, 6); This plays file 001.mp3. Refer to the DY-SV17F UART protocol documentation for the full command set.
Q: How many minutes of audio can 4MB flash store?
A: At 8kHz mono MP3 (typical voice prompt quality, ~8kbps): approximately 60–80 minutes. At 16kHz mono MP3 (~16kbps): approximately 30–40 minutes. At 44.1kHz stereo MP3 (~128kbps): approximately 4–5 minutes. For voice prompts and announcements, 8–16kHz mono provides excellent intelligibility with maximum storage capacity.
Package Contents
- 1× DY-SV17F MP3 Voice Playback Module
