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The Mini MP3 Sound Module is a reusable mass storage voice module, can plug a maximum capacity of 1GB SD card memory and can load the WAV and AD4 audio. The voice module uses WTV020SD-20SS as the core chip, with MP3 control mode, one to one key control mode, power on loop control mode and the two-line serial control mode.
If you want to control the mp3 player with serial port commands with arduino, first you must put the cof.mp3 file with number 1 inside the advert1 folder. The busy pin does not tell you when the player stop, is for connecting a blinking led.This is sample code for playing folder advert01, song 002.mp3 in Arduino.
mySerial.print(0x7E,BYTE); mySerial.print(0x07,BYTE); mySerial.print(0xB0,BYTE); mySerial.print(0x30,BYTE); mySerial.print(0x31,BYTE); mySerial.print(0x30,BYTE); mySerial.print(0x30,BYTE); mySerial.print(0x32,BYTE); mySerial.print(0x7E,BYTE);
Perhaps there is another mode of sending it, with an array... but it works
Last, if you don't know if the module is working, look to the leds.The module has 3 Greed Leds
Audio content updates directly to SD card on the PC. The module supports FAT file system. Support AD4 of 6KHz ~ 32KHz, 36KHz sampling rate and WAV audio of 6KHz ~ 16KHz sampling rate.
Notice : Please choose the mode you want to order and we will ship for you as you require and modules of Mp3 mode will be delivered by default if there is no special requirement.