Description
Reviews
| Brand | - |
| Category | Electronic Components Market / Audio & Amplifier Modules |
| Origin | - |
| Interface | UART / TTL Serial |
| Supported Format | MP3, WAV |
| Storage Medium | Micro SD Card (up to 32GB) |
| Control Method | Button Trigger or Serial Command |
| Playback Mode | Trigger Once Play Once |
| Output Power | 3W Mono Amplifier |
| Operating Voltage | 3.3V - 5V DC |
| Compatibility | Arduino, STM32, ESP8266, Raspberry Pi |
| Audio Output | 3.5mm Jack and Speaker Terminals |
| Dimensions | 45mm x 30mm x 15mm |
Anonymous
Mar 31, 2026
Rating: 5/5
Reliable voice prompter
I used this for a robot that speaks when it detects an obstacle. The latency is very low, and the 'play once' feature ensures it doesn't loop annoyingly. Highly recommended.
Anonymous
Mar 26, 2026
Rating: 3/5
Works but needs careful wiring
The module functions well once set up, but the pin headers were a bit loose on my unit. I had to solder them securely. Audio quality is acceptable for voice prompts.
Anonymous
Mar 17, 2026
Rating: 5/5
Compact and powerful
Surprised by how loud the 3W output is for such a small board. The button control works instantly without needing complex code. Excellent product for the price.
Anonymous
Mar 11, 2026
Rating: 4/5
Good value, clear instructions
Sound quality is decent for a small module. The documentation could be slightly more detailed regarding the wiring diagram, but I figured it out. Works well with 5V logic.
Anonymous
Mar 10, 2026
Rating: 4/5
Great for learning embedded audio
Bought this for a university project. It handles MP3 files smoothly. Just make sure your SD card is formatted correctly (FAT32), or it won't read the files.
Anonymous
Mar 01, 2026
Rating: 5/5
Perfect for my Arduino project
This module worked exactly as described. I connected it to my Arduino Uno and was able to play sound files from the SD card within minutes. The trigger-once mode is great for interactive displays.
Q: Does this module support playing multiple tracks sequentially?
A: Yes, you can command it via serial to play specific track numbers in sequence, though the default button mode is set to trigger one file at a time.
Q: Can I power this directly from a 9V battery?
A: No, the operating voltage is 3.3V to 5V. Connecting a 9V battery directly will damage the module. Please use a voltage regulator if using a higher voltage source.
Q: Does it have a volume control feature?
A: Yes, volume can be adjusted via serial commands sent from your microcontroller, allowing you to set levels from 0 to 30 dynamically.
Q: What is the maximum size of the Micro SD card supported?
A: The module supports Micro SD cards up to 32GB formatted in FAT32. Larger capacities may not be recognized reliably.
Q: Is there a library available for Arduino?
A: Yes, several open-source libraries are available on GitHub that simplify serial communication with this module. We recommend checking the DFPlayer Mini compatible libraries.
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