The YS-M3 Voice Playback MP3 Module is a reliable and easy-to-use audio playback module designed for embedded systems, DIY projects, and smart automation. Capable of storing and playing up to 31 MP3 or WAV files, it supports both low-level triggers and microcontroller (MCU) commands for flexible control. The module features nine direct trigger ports (A1–A9) that allow instant playback by simply grounding the corresponding pin, making it perfect for standalone audio alerts or MCU-based automation systems. With support for 0–3W speakers (4–8Ω), up to 32GB memory cards, and stable operation via the LM393 comparator, the YS-M3 provides dependable performance for applications such as alarms, educational devices, and interactive systems. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
Multiple Playback Options: Supports up to 31 songs through MCU encoding or 9 songs via direct port triggering.
Low-Level Triggering: Simplifies playback activation by grounding the trigger port to GND.
High Compatibility: Works with both MP3 and WAV audio formats stored on TF cards (up to 32GB).
Clear Audio Output: Drives 0–3W speakers (4–8Ω) with adjustable sound output.
Compact & Durable Design: Measures only 4 × 4.1 × 0.9 cm, suitable for embedded use.
Visual Feedback: Includes power and playback LEDs for easy status indication.
Stable Operation: Features built-in LM393 comparator for noise-free performance.
Low Power Usage: Efficient design operating at 3.5V–5.3V with minimal standby current.
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Applications:
DIY Electronics: Integrate audio responses or sound effects in robotics and custom gadgets.
Home Automation: Add voice prompts or alerts to smart systems.
Alarm Systems: Play custom warning messages or notifications.
Educational Projects: Teach sound-triggering principles using microcontrollers.
Advertising Displays: Play promotional or announcement audio in kiosks.
Interactive Systems: Enable responsive sound in art installations or public systems.
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| General Specifications |
| Model | YS-M3 |
| Power Supply | DC 5V (3.5V–5.3V range) |
| Standby Current | 28 mA |
| Working Current | ≥80 mA (depends on speaker/volume) |
| Trigger Ports | 9 trigger ports (A1–A9) |
| Trigger Level | Low level (< 0.8 V) |
| Speaker Compatibility | 0–3 W, 4–8 Ω |
| Supported File Formats | MP3, WAV |
| Maximum Storage Capacity | 32 GB (TF Card) |
| Indicators | Power LED (red), Output LED (green) |
| Chipset | LM393 comparator |
| Module Dimensions | 4 cm × 4.1 cm × 0.9 cm |
| Shipment Weight | 0.0107 kg |
| Shipment Dimensions | 4 × 4 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
How to Use:
Prepare Files:
- Save MP3 or WAV files on a memory card following the naming convention (e.g., 001.MP3 for the first song). Insert the memory card into the module.
Wiring:
- Connect VCC to a 5V power source.
- Connect GND to the ground.
- Attach the speaker to the Speaker output port.
Trigger Playback:
- Use a wire to connect the trigger port (e.g., A1) to GND.
- The corresponding song (e.g., 001.MP3 for A1) will play.
Microcontroller Integration:
- Use the MCU encoding feature to trigger up to 31 songs by sending specific commands via the microcontroller.
Power-On Playback:
- To play a specific song on power-up, ground the corresponding trigger port (e.g., A1) before powering on.
Package Includes:
1 x YS-M3 Voice Playback MP3 Module with Low Level Trigger Once and Broadcast Once
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