Data Sheet
Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
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3.4.5.Attention
The interval time of sending command should not be less than 300ms.
After sending control command, ensure the command execution by checking the return code to
make sure whether it is executed correctly.
3.5. Audio file sorting
WT2003S audio file index sort is according to the audio file sort order stored to micro SD card
instead of the file name order. So when WT20003S is playing file in index, the sort sequence is not
related to the file name.
We can build a folder on the computer and copy all the files to the folder, and then sort the files in
this folder according to what you want or like. Next, according to the following two methods copy the files
to micro SD card or U disk. (If you want to download to SPI, you can first copy to micro SD card or U disk,
and then send commands or copy to SPI by pressing copying keys.)
Two common copying methods:
First is to use shortcut key”Ctrl+C” and “Ctrl+V”. But note that the mouse can not click on any of the
files selected to be sent, otherwise it will start sending the file that mouse click on. This would upset file
order.
Second is sorting file orderly. Select the files to be sent and right click on the first file (for example,
0001 Ode to the motherland. MP3).In the right-click menu, select to send to the root directory of SD Card.
(Note that the right click is the first file to send; the system will begin with this file to send.)