Grove MP3 v2.0
Last updated
Last updated
Grove - MP3 v2.0 is a tiny-sized and compact audio module. It supports various audio file operations for an audio file of MP3, WAV and WMV format, such as random music playing, play music in specific files, and so on. With serial communication, you can use all predefined command or command combinations to do all operations on music files. This module also supports general file systems such as FAT16 and FAT32. It gets a Grove UART interface, a 3.5 mm audio jack and a micro-SD slot. With this module, you can add some noise to your silent applications.
Product revision
Release date
Support status
Version 1.0
April 28 2013
Supported
Version 2.0
Dec 15 2015
Supported
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
!!!Tip More details about Grove modules please refer to Grove System
Middle-level audio module for any applications.
Parameter
Value
Input
5 V (DC)
Operating current (no signal output state)
less than 15 mA
Operating current
less than 40 mA
Chip
KT403A (datasheet)
Chip LDO output voltage
3.3 V
Chip output current
100mA(at Max.)
File formats supported
MP3, WAV, WMA
Maximum memory supported for SD card
32 GB
Sampling rate
8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48(KHz)
Parts name
Quantity
Grove - MP3 v2.0
1PC
Grove - Universal Cable
1PC
Seeeduino × 1
Grove - Base Shield v2 × 1
Grove - 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
Refer to following guides to building an appropriate IDE:.
Note We have chosen Seeeduino and it is compatible with Arduino in this case. So you can also use Arduino board instead.
1.Github address which also contain sufficient API to download codes.
2.Refer to [here](/Guide_to_use_demos_downloaded_from_Seeed's_Github) to learn how to do some preliminary work before running code.
3.Load file MP3_Play_Test.ino into Arduino and upload to the main controller board.
4.Open Serial Monitor (Ctrl + Shift + M) to send a command to play music.
Note We need to choose No line ending beside baud rate droplist at bottom-right of Serial Monitor window.
5.In this case, we type 1 which is a command to play music. You can find more command comments in demo source code.
6.Now enjoy the music.
For advanced programming, you can download datasheet of chip KT403A.
Hardware Schematic files
Libraries on Github.
KT403A Datasheet (part)
