20W Voice Playback Module, PEMENOL DC 6-35V Sound Board USB Downloadable Music Player 24-bit DAC Output MP3 WAV Support TF Card 32GB Max for Broadcast Device Electronics Present Halloween DIY

Works good! The PDF file linked/provided on the Amazon product page is pretty good documentation IMO. I used Win 10, micro-USB cable, cheap earbuds & a cheap 32GByte TF micro-SD flash card (see pic). Win 10 recognized the flash card & I loaded 4 MP3 songs & 2 short wav sounds. Numbered them 00001.mp3 & 00005.wav, etc. When I disconnected the USB from the PC, I plugged it into a power-block to power the board back up. Listening with earbuds, I can hear each file played when requested by shorting the wire from the ground pin to the trigger pin. In the pic you can see I used a handy 10-Ohm resistor, but you could use a simple wire to trigger. In my project I plan to use pushbuttons to trigger the files. I didn't check the speaker-output or the power-input or the volume control.Notes:1) There is PDF file documentation, as of today it is linked on the Amazon page, you may have to scan carefully to see the link.2) You can power the board from USB, but if the USB cable is attached to Windows, the board will be in flash-drive mode, so you must switch to a USB power block, after you have copied your files in place.3) The 3 DIP-switches select 8 different trigger modes. Read the docs carefully to decide which one you need. I tested all the discrete (button) modes, but not serial/UART modes. Lots of fun for Arduino fans.4) I used a cheap 32-GigaByte TF/micro-SD card & I did not format it, so it seems to me the board handles this huge capacity standard format ok, but of course I have only loaded up a few MBs so far, so there may be some limits on capacity. I was able to play both MP3 & WAV files.

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!

Had a little trouble at the start. Could not get mp3 files to play, but that could be my files. Converting the files to wav worked. The headphone jack seems to work with my 12v source and USB power. It wasn't like 100% easy, but it's not the worst time I've ever had in my whole life. 8/10 lol.

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.

Very nice product but couple of things to know. To load the microSD card, place it in the device, connect the device to your computer with a micromUSB cord, and it will show up in your drive list. Don’t try to load the card directly from your PC with an adapter; it won’t be recognized by the sound module. Also, the audio output appears to be a two conductor jack. Using a stereo cable gives distorted sound. Just use the tip and sleeve contacts of a cable and it will sound fine. Really neat product, as long as you know the rules.

The most frustrating aspect is the lack of documentation. I can find nothing on the internet in way of a manual. I've wasted hours trying to get a sound out of the audio or speaker port. I can plug the board into my Mac and it recognizes it, but what format should I use on the SD card? I've tried them all, MSDOS, MACOS, EXFAT, etc. with no success. I've loaded MP3 files with the naming convention with no success. Is it too much to ask PEMENOL to publish a manual? I don't like returning hobby boards, but I've wasted way too much time on it. My next move is to buy a board that has a manual.

Worked for a bit, but unexpectedly died and got really hot after it had stopped working, failure unknown but suspect user error, may have reversed power input polarity, on that note tho, morTy devices than you have should include reverse polarity protection.

This is certainly a powerful and flexible sound module, which works well.Points of clarification:- this board uses a 4 gb TF memory card, not a 32 gb card. Don't buy the wrong one!- the board control inputs are 3.3 volt logic level, not 5 volt TTL (not mentioned anywhere in the docs - reverse engineered it to figure it out). Open collector / drain drive drive works well.- no docs come with the board, but there is a link in the web page to download them