How to troubleshoot WTV020SD-16P music module

We test all the WTV020SD-16P modules before we ship to our customers. We check all the modules using WTV020SD-16 Evaluation kit. Please check the video below:

If your WTV020SD-16P music module is not working properly, please check these:

• Download AD4 format sample files from here.

Download more AD4 format files. (RECOMMENDED)

• Use a SANDISK 2GB MicroSD card. The modules does not work with 1GB or any other memory cards.

You can purchase a 2GB SANDISK microSD card at buildcircuit.net. You don’t need to format the MicroSD card.

A recent experiment done on 15.6.2014 from our customer has shown that a Kingston 512MB microSD card also worked with the module. So, we also recommend you to test with that.

1. Start with this basic experiment: http://www.buildcircuit.com/mp3-mode-circuit-wtv020sd-16p-tutorial/
2. DO NOT use 5V power supply for the project. 5V will burn both your MicroSD card and the music module.
   Use 3.3V power supply only. You may use a 3.3V regulator chip or get power from Arduino.

Problem: MicroSD card does not fit on to the module:
If your MicroSD card does not fit on the module card case, simply push the card bit harder. It goes inside the case with a ‘tick’ sound.

Other important points:

a. Micro SD card: Use a 2GB SANDISK MicroSD card. I have tested with 1GB card, but it didn’t work.  Some customers have said that the module also worked with Kingston 512MB MicroSD card. You can buy a SANDISK 2GB micro SD card from our store.

b. Music file format: *.AD4.

c. File names: 0000.ad4, 0001.ad4, 0002.ad4 and so on. Download Sample Files

d. After youmake the first circuit on a breadboard, press the NEXT or PREV switches for at least 5 seconds. If all the connections are correct, your music will play.

e. Try this experiment first: http://www.buildcircuit.com/mp3-mode-circuit-wtv020sd-16p-tutorial/

f. Read this article carefully: http://www.buildcircuit.com/how-to-use-wtv020sd-music-module-with-arduino/

DO NOT use 5V power supply for the project. 5V will burn both your MicroSD card and the music module. Use 3.3V power supply only. You may use a 3.3V regulator chip or get power from Arduino.