Hi all I bought WTV020-SD-16P U-Disk Audio Player SD Card MP3 Voice Modulefrom one china web i have kingstone 2GB Micro sd card and its not working the module is WTV020M01 V1.00 2012.01.12i was trying 5V and 3.3V same result i conected the module to arduino mega like i connected earphones to it and i can hear some noise by pushing the next / previous button and some noise like is searching on the card I think the problem is the sd card but maybe i am wrong i dont have another sd card to compare i just want to know if other people which have problem with the card have same experience the SD card is formated to FAT(FAT16) and also tried to change the size to 1GB sorry for my English
Hi kiwisincebirth, Sorry for the late reply. I did indeed find the missing ground as you suggested. I soldered the wire and at least I can hear music this time but not the complete song. It stops after approx. 20 seconds of starting playing the song. It partially works this way for the following memory cards: one 2G Sandisk and one 2G Kingston cards. It does not work for another 2G sandisk card. They are all being formatted the same way and they all also use the same files. I have no idea what the problem is. I guess I would have to look for a similar module that plays some audio for Arduino.thank you.Try reducing the level of your music before converting it to .ad4. I had the same problem, and believe I was overloading the very small amp in the wtv - I noticed the volume was higher in my music, compared to the example songs. I reduced the level in Audacity, and reconverted and it played fine.
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