Data Sheet

Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip

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“54, 30, 30, 32” are ASCII codes of T002. Only file names are in the from of ASCII code while other data

is Hexadecimal; above commands mean T002XXX.mp3 audio file playing in the specified root directory;

only corresponding to the first 4 bits is OK. If there are 2 audios and the front 4 audio are the same, it will

not play to send this command.

2.3.4.4. Play/Pause command(AA)

Start code

Length

Command

Check code

End code

Under playing state, sending this command will pause, while under pause state, it will play music from

the pause.

2.3.4.5. Stop command (AB)

Start code

Length

Command

Check code

End code

Sending this command will stop playing the current music.

2.3.4.6. Next command (AC)

Start code

Length

Command

Check code

End code

This command can trigger to play the next music. When playing the last music, sending this command

will trigger to play the first music.

2.3.4.7. Previous command(AD)

Start code

Length

Command

Check code

End code

This command can trigger to play the previous music. When playing the first music, sending this

command will trigger to play the last music.

2.3.4.8. Volume control command(AE)

There are 32 volume levels in total, from 00 to 31. 00 is mute; 31 is full volume.

Start code

Length

Command

Volume level

Check code

End code