Data Sheet
Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
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3.4.3.6. File name play in the specified U disk (A7)
Start code
Length
Command
File name (from high to low)
Check code
End code
7E
07
A7
54‘T’
30(‘0’)
30(‘0’)
32(‘2’)
XX
EF
“54, 30, 30, 32” are ASCII codes of T002, and only file names are in the form of ASCII code while other
data is hexadecimal; above commands mean T002XXX.mp3 audio play under the specified root
directory; only corresponding to the first 4 bits is OK.
3.4.3.7. File index play in the specified U disk folder (A8)
This command can play by file index under the specified root directory(folder name is fixed 5 characters)
Start
code
Length
Command
Folder name(from high to low)
Folder name(from high to low)
Check
code
End
code
7E
0A
A8
‘M’
‘U’
‘S’
‘I’
‘C’
00
01
XX
EF
Only file names are in the form of ASCII code; above commands mean the first audio play (index number
is 0001) in the MUSIC folder under the specified root directory.
3.4.3.8. Play/Pause command (AA)
Start code
Length
Command
Check code
End code
7E
03
AA
AD
EF
In playing state, sending this command will pause, while under pause state, it will play music from the
pause.
3.4.3.9. Stop command (AB)
Start code
Length
Command
Check code
End code
7E
03
AB
AE
EF
Sending this command will stop playing the current music.
3.4.3.10. Next command (AC)
Start code
Length
Command
Check code
End code
7E
03
AC
AF
EF
This command can trigger to play the next music. When playing the last music, sending this command
will trigger to play the first music.