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20W voice playback module is an intelligent voice module, integrated IO segmentation trigger, UART serial control, ONE_line single bus serial control, standard MP3 and other 7 working modes, simple dip switch settings; onboard 20W Class D amplifier; support MP3, WAV decoding format, up to 32G TF card, can be connected to a computer via USB data cable to update TF storage audio files.
FEATURES:
1. Support MP3, WAV decoding format.
2. Support sample rate(KHz):8/11.025/12/16/22.05/24/32/44.1/48.3. 24-bit DAC output, dynamic range support 90dB, signal-to-noise ratio support 85dB.
4. DC 6~35V ultra-wide working voltage.
5. Maximum support for 32G memory card, can be connected to a computer via USB data cable to update the stored audio files.
6. Integrated high-power amplifier output, driving 4Ω speakers up to 20W, driving 8Ω speakers up to 10W.
7. UART serial port control voice broadcast function, can control play, pause, select songs, volume up or down and other functions, the maximum selection of 65535 tracks, baud rate 9600 bit / s.
8. Support IO one-to-one trigger play function, 8 IO ports alone trigger 8 tracks or 8 IO ports combined trigger 255 tracks.
9. Support One_line single bus serial port control, can control play, pause, song selection, volume up and down and other functions.
10. Support 3 configuration IO for up to 7 working modes selection, dip switch settings, easy to operate.
11. 8-way IO design ESD protection
David
Reviewed in the United States on February 2, 2025
Worked great right out of the box. Converted Itunes files to .wav format. Insert an SD card and plug the board into my computer via USB. The board shows up like a USB drive. Moved the .wav files to the onboard SD card and renamed each file 00001, 00002, 00003 etc. There are IO pins and a ground pin on the side of the board, just solder a momentary button switch between the IO pin and the ground. Press the button corresponding to the IO pin and the .wav file will play. Great deal for what it does.
P. Meyer
Reviewed in the United States on August 1, 2024
The speaker output doesn’t work at all if you’re powering it with the USB-micro connection but the headphone jack does. Otherwise the device works correctly on USB power. When you apply a 12v supply the speaker works fine.The file names have to be 4 zeros and a digit. If you use 5 like I did then the only mode that will work is mp3 play all because that mode doesn’t care what the file names are, it just loops through whatever is there.The volume up/down control is awkward and the default is full volume which is pretty annoying. I get that it’s hard to choose what level to use but going all the way to the highest setting seems a poor choice.I used a 32G (BYTE) card having not read the fine print where it says 32G BIT (4Gbyte). I formatted it on an iPad using the Files app which resulted in a clean 32Gbyte card. I used a 3rd party cheap usb adapter with an sdcard reader. I copied some files out to it and renamed them in place and this worked fine, probably because it was a fresh card so all the files went into blocks at the start of the device and none extended beyond the 4Gbyte limit. That says if you format it first and don’t get carried away a 32G card will work. I have tons of them and exactly zero 4Gb ones.Other than the super annoying full volume default I like them.
keith southworth
Reviewed in the United States on June 27, 2024
I dont have an electronics background, so getting it to do what I want is challenging and time consuming. I want a separate button to play each pre recorded message. Ive searched you tube videos but they dont explain how to do this. Plus I want to be able to change the recordings easily at any time. Does not come with instructions, you're on your own.
Don
Reviewed in the United States on October 23, 2024
Only thing I would of liked is maybe a screw terminal instead on soldering
Justin
Reviewed in the United States on August 29, 2023
Although the board looked a little different than the photos provided ( no components soldered onto the board, near the I/O ) everything works and functions great. I run this board in USART mode, controlled by Arduino. I loaded up the "SnijderC DYPlayer" Library, opened the example code provided, and was able to play audio first-try.As others mentioned, the MP3 files need to be named 0001.MP3 so when you address song 1, it'll play that song. I used a 3.3V arduino, I don't know if the pins accept 5V. But, I can vouche they accept 3.3V no problem.I used this board to play little sound clips to add sound effects to a project. I found it very user-friendly the board doesnt have power/speaker connectors. This allows more customization to the user's use case., I was able to fit JST-XH connectors on, as well as adding generic pins for the I/O. Simply gave it power and ran only 2 wires to the arduino and I got full control. The potentiometer on the board sets the "max volume" and the arduino can digitally control 0-100% of the volume, set by the potentiometer. Very happy with the end results!
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