Crowtail- MP3

Description¶

Crowtail- MP3 is a tiny-size and compact audio module. It supports operations including shuffle and play in an order of various audio files such as WAV and WMV ones. With serial communication, you can use all predefined commands or even the combinations of them to play the music. This module also supports general file systems like FAT16 and FAT32. It gets a Crowtail UART interface, a 3.5mm audio jack and a micro-SD slot. With this module, you can get some “voices” for silent applications.

Features¶

• General operations on audio files
• On-board micro-SD slot and 3.5 mm audio jack
• Support sample rate of 8/11.025/12/16/22.05/24/32/44.1/48(KHz)
• 24-bit DAC output, 90 dB (at Max.) dynamic output range, signal-noise ratio at 85 dB
• MP3, WMV and WAV audio format and FAT16, FAT32 files system supported
• Embed 10 levels of equalization in total

Specification¶

Interface function¶

Usage¶

Material required¶

• Crowduino × 1
• Grove CrowtailGrove - MP3 v2.0 × 1
• SD card with music inside × 1
• USB cable (type A to micro type-B) × 1
• Headset, earphone or stereo with 3.5 mm audio jack × 1

Hardware connections¶

1. Connect the MP3 Player from U port, SD card slot card entities. insert a Card with MP3 songs into the SD card slot, the indicator lamp lights on the MP3 Player will be observed at this time (unplug the SD card, lights off).

2.Download the MP3_test demo code,unzip it ,copy it to libraries folder of Arduino.

3.Open Arduino IDE, File -> examples -> MP3Player_KT403A ->MP3_Play_Test, you can open the demo code,and upload to the main controller board.

4.Open Serial Monitor,you can send different command (1~8) to control the MP3 Player.

5.Now enjoy the music.

Resource¶

• MP3_test demo code
• KT403A(datasheet)
• Crowtail- MP3 eagle files