DollaTek Voice Sound Playback Module Arduino MP3 Player Module UART I/O Trigger Class D Amplifier Board 5W 8M Storage SD/TF Card

Recognised by Win 10 PC as a USB drive by simply plugging into the Micro USB port. Comes pre-configured with 9 small MP3 files each one contains the voice of someone speaking the file number in Mandarin, simply replace these files with your own renamed ones and you are in business. The most important information relates to the 3 mode switches which change the way the playback mode is triggered, I have attached this missing information here for you. I could not find their own web site for help. It is possible to interface to Arduino as well, simple coding, again you need to search for that information. A very good value device for adding sounds, voice or alerts to your home projects. Does not come with data sheet, header pins or a USB cable, or a speaker but that keeps the cost down. UPDATE: Couple of extra points: These boards are very dependent on a good supply voltage - lower supply to 4.2V it will still function but only at lower volumes, so you will need a buck converter supply to run from a 3.7V LiPo cell. Another issue is that in stand-alone mode, triggering inputs with a solid ground (which remains grounded) produces constant repeat playback of the relevant sound file over and over. Only by removing the ground (or power) will stop the playback, these boards are not single-shot playback so it may be necessary to employ schmitt trigger circuits if you need to prevent this or use the Arduino UART mode. None of the three program switch positions have any affect on constant repeat playback, which is a shame for my application.

I needed an mp3 player for a project of mine and came across this. It has 4MB of flash memory, which is plenty if you use mp3 format files. The real bonus is the 3-5 watt class D amplifier. The sound from this on board unit is very good. Now, depending on how you use it, you will need to follow the details in the pdf user manual which is downloadable. You can address the board using UART serial connection, or just wire the 8 inputs to buttons. The board can be powered via USB but only if there is no connection to the RX TX connections. That is, not a PC connection, but a plug-in USB charger should be ok. A good item and good price.

Bought this for a plasma gun prop from the Fallout series I'm making. It took me a while to figure out that you need to power it from the header pins and not USB as it wont do anything if the USB data pins are connected. It will kind of work powering it from USB but you need to pull the cable out slightly so the data pins disconnect. Overall a good little board and perfect for adding sound effects to my prop.

I was quite dismayed to see no data supplied with something quite complicated. I was able to find the information I needed by typing the make and model number into the internet. After setting it all up there was no sound coming from the speaker when operated. I was able to transfer an audio file into it and could play it back into the computer, but that's all that worked. I'm sending it back to Amazon.

Davvero semplice da usare, si caricano i wav o mp3 numerati, come fosse una chiavetta (per quanto lentissima) e poi, nella modalità base, basta portare i pin a ground e parte il suono. Credo abbiano delle resistenze di pullup integrate. Con arduino si puo' attivare il suono passando dal pin in modalità INPUT (ad alta impedenza) a OUTPUT LOW per qualche millisecondo e poi tornare INPUT. Unica "pecca" è che i suoni non partono proprio istantaneamente, c'e' un leggero delay (una frazione di secondo) da quando il pin va a ground a quando parte effettivamente il suono. Almeno, io osservo questo, non so se possa dipendere dal mio setup ma non credo. Anche il wav che ho testato e' corretto senza silenzio iniziale. Ho provato solo la modalità "semplice" quella di default (un pin, un suono), non quelle piu' avanzate, non ne avevo bisogno per il mio progetto. Segnalo anche la board SV5W che e' simile ma sfrutta una scheda SD invece di una memoria interna (se gli 8 mega non vi bastano) In ogni caso, davvero un modo indolore per integrare dei suoni preconfezionati nei nostri progetti

Funciona perfectamente y tienes muchas opciones de configuración.

Correspond parfaitement à la description

Durch einen bekannten bin ich auf die Suche nach ein Gerät gegangen, welches auf Knopfdruck spricht oder Geräusche von sich gibt. Bedingung war natürlich, wenn die Spannung weg ist müssen die Daten erhalten bleiben. Das Audioformat sollte mp3 oder wav sein. Alle diese Forderungen erfüllt das DY-SV8F. Auch wenn der Speicher auf den ersten Blick nicht groß ist, reicht er für meinen Zweck und auch für viele andere Anwendungen vollständig aus. Der integrierte Verstärker ist ausreichend laut. Abgesehen davon könnte das Audiosignal ja auch über einen Lineout Ausgang (3,5mm Klinke) an exteren Geräte angeschlossen werden. Es werden relativ wenig zusätzliche Bauelemente benötigt. Ein Header für die 14 Anschlüsse, 8 Microtaster (meine Empfehlung, sie geben sicheren Kontakt) und eine Spannungsquelle 5V. Wer nicht eine größere Spannung aufbereiten möchte, z.B. mit einem Spannungssabilisator, verwendet einfach eine Batteriehalterung für 3xAA Batterien. Ich spreche selbst Texte ein und rufe diese dann auf Knopfdruck ab. Der Preis ist unschlagbar und so kann ich auch unkonvetionelle Dinge damit realisieren. Mein Test verlief erfolgreich und nun bekommen meine Enkeltöchter eine Beschallungsanlage mit Ansagetexte für ihren Kaufmannsladen. Wie im Supermarkt.

Gutes Produkt Funktioniert alles bestens Habe mehrere gekauft, alles funktionieren 1A