Arduino MP3 Shield User Guide
Contents
1. SPI FLASH iSound mp3 Example We need configure our Arduino MP3 Shield to let it Play automatically when powered on and Repeat all music and save our user defined 0x12 0x34 0x56 0x78 We need edit isound mp3 like this sp01 cloo cf12 34 56 78 Note for MAC or Linux users there will be a problem EOL End of line symbol on Windows OS is Wn But on MAC or Linux it is in The following is an example showing the difference We make the newline EOL visible in Notepad On Windows OS 1 sp021 w2i3 2 c103 wu3 3 cf12 34 56 78 On MAC Linux 1 sp01 WMl3 2 cloO3 WMN3 3 cf12 34 56 78 The iSound mp3 should end with a Windows EOL symbol That is r n We recommend Notepad You could change the EOL symbol f CAUsers wilson Desktopisound mp3 Notepad gt NN RES File Search View Encoding Language Settings Macro Run TextFX indow g Undo Ctrl Z ia g 5 C3 E3 BL Redo Cubs bank bt H index 2 php H new 2 E PtoP initiator ino Cut Ctrl X Copy Ctrl C Paste Ctrl V Delete DEL Select All Ctrl A Copy to Clipboard L Indent d Convert Case to Line Operations Comment Uncomment Auto Completion EOL Conversion gt Windows Format Blank Operations gt UNIX Format Mac Format Column Editor Alt C Set Read Only Clear Read Only Flag www elechouse com COPY MUSIC FROM SD CARD U DISK TO SPI FLASH The Arduino MP3 Shield support 3 kinds o2. two pads and bridge the two below Then on this module D7 becomes TX D8 becomes RX While programming with SoftSerial library on Arduino Arduino D7 should serve as RX and Arduino D8 as TX Amplifier Control Amplifier Control pin is used to enable or disable the on board amplifier By default the amplifier is enabled and the control pin is disconnected To control the amplifier bridge the two pads of the Amplifier Control Jumper in the picture above Then the control pin is connected to Arduino D9 Set D9 high to enable the on board amplifier low to shutdown the amplifier Command Description Through UART interface user can send command to select music select storage set play mode inter cut music music combination play and so on UART Configuration UART setting e Baud Rate 9600bps e Parity bit None e Start bit 1 e Data bit 8 e Stop bit 1 ij Command Format START LENGTH COMMAND PARAMETER END Ox7E Ox7E NOTE LENGTH value is the total count of areas including LENGTH COMMAND and PARAMETER Writing Command Writing command means commands which tell Arduino MP3 Shield to do something After each command executed correctly the command code will be returned Play SD Card File Run this command to play selected SD card file START LENGTH COMMAND TRACKS HIGH TRACKS LOW END BYTE BYTE Ox7E 0x04 0xAO XX XX Ox7E TRACKS HIGH BYTE and TRACKS LOW BYTE are HEX numbers They r
3. OTE Return value is always 5 bytes one byte COMMAND and 4 bytes data If the isound mp3 cf string don t specify 4 bytes data then the return value will be OxFF Reference CONFIGURATION DESCRIPTION Physical Dimension E eo O o O N 1850 0Omil Code Download the library MP3 shield library zip Disclaimer and Revisions The information in this document may change without notice Please visit www elechouse com for new information Revision History Rev Date Author Description A July 3 2012 Lich Initial version B August 23 2012 Wilson Add the mapping pin C Oct 28 2012 Wilson Add note for the iSound file
4. V files SPI FLASH only supports MP3 format Parameter Power Supply 4 5V 5 5V typically 5V Interface UART 5V TTL and 7 buttons Size 47mm x 53mm www elechouse com LED There are 2 LEDs on the board e Power indicating the LED is always on when power is supplied e State indicating LED is on when playing music blinking when copying files to onboard SPI FLASH Function Description On board Audio Amplifier could drive up to 3W 4Q external loudspeaker Infact we test it with 5W 8Q loudspeker and it works well i npn OL mu Tuc wom EREEEE eu ov ov eT om mme E E Stereo Audio Amplifier Interface U Disk interface Ie e i n id e I 9 j Iliad E Ee i i www elechouse com TX Jumper Amplifier Control SD Card Interface By default the RX Jumper and TX Jumper are connected to hardware UART pins on Arduino You could change it with soldering tool If you bridge the lower two pads Arduino D7 and D8 need to serve as RX and TX You could find more information in latter description The amplifier could be controlled by Arduino By default it is enabled and not controlled by Arduino If you need please bright the Amplifier Control pads More information will be explained later E CONFIGURATION DESCRIPTION Arduino MP3 Shield configuration is stored in a fi
5. com 0x01 Repeat single music 0x02 Repeat all 0x03 Play random Parameter e 0x00 Play one music and stop e 0x01 Repeat playing one music e 0x02 Repeat playing all music e 0x03 Play music randomly We have introduced the iSound mp3 file to configure the module What is the difference Well configuration in isound mp3 file will be loaded each time while this module is powered on It means that configuration in isound mp3 will be saved after powered off But the setting by OxA9 command will not be kept while powered off Copy File from SD card to SPI FLASH Run this command to copy file from SD card to SPI Flash START LENGTH COMMAND PARAMETER END Ox7E 0x03 OxAA 0x00 Ox7E This command will try to copy all the files in SD card to SPI FLASH The Arduino MP3 Shield will return OxAA immediately after receiving this command correctly At the same time the BUSY LED blinks If copy successfully it returns OxAA 0x00 If failed then return OxAA 0x01 After copy finished BUSY LED turn off That isto say ina successful copy operation you should receive OxAA OxAA 0x00 Copy File from U Disk to SPI FLASH Run this command to copy file from SD card to SPI Flash START LENGTH COMMAND PARAMETER END Ox7E 0x03 OxAB 0x00 Ox7E This command will try to copy all the files in U disk to SPI FLASH The Arduino MP3 Shield will return OxAB immediately after receiving this command correctly At the same time the BUSY LED blinks If copy successf
6. efer to the music file which you want to reply This is not the file name but the file s order number We have explained the file order above For example if you want to play the second music TRACKS HIGH BYTE is 00 and TRACKS LOW BYTE is 02 ll Play SPI FLASH File Run this command to play selected SPI FLASH file START LENGTH COMMAND TRACKS HIGH TRACKS LOW END BYTE BYTE Ox7E 0x04 OxA1 XX XX Ox7E www elechouse com TRACKS HIGH BYTE and TRACKS LOW BYTE are the same with OxXA0 command Play U Disk File Run this command to play selected U Disk file START LENGTH COMMAND TRACKS HIGH TRACKS LOW END BYTE BYTE Ox7E 0x04 OxA2 XX XX XE TRACKS HIGH BYTE and TRACKS LOW BYTE are the same with OxAO command i Pause OR Play Run this command to switch between pause and play START LENGTH COMMAND END Ox7E 0x02 OxA3 Ox7E Stop Playing Run this command to stop playing START LENGTH COMMAND END Ox7E 0x02 OxA4 Ox7E i Next Music Run this command to play next music START LENGTH COMMAND END 0x7E 0x02 OxA5 Ox7E Previous Music Run this command to play previous music START LENGTH COMMAND END Ox7E 0x02 OxA6 Ox7E i Set Volume Run this command to set volume START LENGTH COMMAND VOLUME LEVEL END Ox7E 0x02 OxA7 Ox00 0x1F Ox7E The volume value is between 0x00 0x1f Set Play Mode Run this command to set play mode START LENGTH COMMAND PARAMETER END Ox7E 0x02 0xA9 0x00 Single Play Ox7E www elechouse
7. en copy CTRL C may help and paste these file to the SD card U disk In this way the music files will be stored in the desired order www elechouse com KEY l Standard Key Play Pause music LONG Stop playing SHORT Previous music LONG Fast forward when playing music SHORT Next music LONG Fast backward when plying music SHORT Volume LONG Volume fast SHORT Volume Volume fast COPY and SLEEP The two bronze head button on the upper left corner are COPY and SLEEP button ll copy Button The basis function of COPY button is copy music files to SPI FLASH For more information please refer to Copy Music through COPY button Another function of this COPY button is to play next It functions while this module is the stage of playing music ll SLEEP Arduino MP3 Shield can sleep or wake up by SLEEP button SLEEP Press SLEEP button and hold 2 more seconds WAKE UP Press SLEEP button to generate a high level pulse to wakeup Arduino MP3 Shield Jumpers On the bottom of the Arduino MP3 Shield there are three jumpers TX Jumper RX Jumper and Amplifier Control Jumper They are used to select alternate function of Arduino MP3 Shield TX Jumper Amplifier Control TX and RX Jumper www elechouse com By default the Arduino MP3 Shield connects Arduino board with hardware UART through the jumper To change the connection dis bridge upper
8. even it is larger than 8MB of course resulting in bad file in the SPI FLASH However if there is not enough space for the second file it will not be copied into SPI FLASH For example we have many music files in the SD card more than 8MB the first file size is 3MB and the second is 4MB and the third one is 2MB When we do copy operation only the first two file can be copied to the flash You can send command to check the file numbers in the SPI Flash See Check Total Number of SPI FLASH Files li Music Order All the music files must be stored in the root directory of SD or U disk Any file name is not restricted as long as it obeys FAT file system FAT32 file system has a rule File order is decided by the file address File which is created or copied into file system earlier has a higher priority The Arduino MP3 Shield plays music in that order To control the music order in which Arduino MP3 Shield plays we need to control the order in which the music files are saved in SD or U disk For example you could save music one by one to SD card You save B mp3 first and then save A mp3 By default it will play B mp3 fore A mp3 file There is a simple way to save music as desired in bulk Create a folder on PC and copy all music files to the folder Add prefix 000079999 to the file names like 0000 God is a girl mp3 0001 Baby mp3 0002 Set Fire To the Rain mp3 and so on Then reorder the music by name Select all files CTRL A may help th
9. f storage media SD card U Disk and SPI FLASH The three kinds of memory have the following priority High first SPI FLASH SD card and U Disk There are two methods to copy music from SD CARD U DISK through COPY button or UART interface Copy Music through COPY button Follow the following 5 steps 1 Create the iSound mp3 configuration file copy music files to SD card U DISK then copy isound mp3 to SD card U DISK this can make sure the iSound mp3 is the last file in SD card U DISK Power off Arduino MP3 Shield Press COPY button and hold Power on Arduino MP3 Shield and hold COPY button for about five seconds until the state indicating LED starts blinking Release the Copy key and wait state indicating LED turns off MH BR WN In fact the configuration file could be stored in SPI FLASH until you download another iSound mp3 file to it That means you only have to download the configuration file once However each time you download music files to SPI FLASH old music files in the SPI will be erased Copy Music through UART command You could also copy files to SPI FLASH by sending command via UART Interface See Copy File from SD card to SPI FLASH and Copy File from U Disk to SPI FLASH NOTE 1 Themusic files copied to the SPI FLASH has the same order with those in the SD card U Disk 2 TheSPI FLASH only has 8MB space Each time you copy files to SPI FLASH the first file will be copied anyway
10. le named isound mp3 Note that in fact it is not an audio file but a txt file You could open it with software such as Notepad The format of the isound mp3 is as bellows spxx clxx Cfxx xx xx xx Details spxx Play settings when powered on sp must be lower case letters xx must be 00 or 01 00 means Do not play automatically when powered on 01 means Play automatically when power on clxx Play Mode Settings cl must be lower case letters xx must be 00 01 02 or 03 00 means Play single music 01 means Repeat track 02 means Repeat all and 03 means Play randomly cfxx xx xx xx User defined data User can read these four bytes data through UART interface Refer to Get user defined data iSound mp3 is a file where you could configure the Arduino MP3 Shield Follow the steps below to configure it Create a text file named iSound mp3 on your PC Usually open the Notepad in Windows on Mac or Linux see the note create a new file enter the data in the rule above and save as mp3 file www elechouse com Copy the iSound mp3 to U Disk or SD card Make sure that isound mp3 is the last file copied to U Disk or SD card This could ensure that at next step isound mp3 file is the last file which is written to the flash Use COPY function to download music files and the isound mp3 configuration file to the flash All configuration information is saved in the SPI FLASH See COPY MUSIC FROM SD CARD U DISK TO
11. ully it returns OxAB 0x00 If failed it returns OxAB 0x01 After copy finished BUSY LED turn off That is to say ina successful copy operation you should receive OxAB OxAB 0x00 Reading Command Reading command means commands which check the state of Arduino MP3 Shield I Check Volume START LENGTH COMMAND END 0x7E 0x02 OXE OX7E Return COMMAND VOLUME 0xC1 0x00 0x1F Check Work State START LENGTH COMMAND END 0x7E 0x02 0xC2 Ox7E Return value www elechouse com COMMAND RETURN VALUE 0xC2 0x01 Playing 0x02 Stop 0x03 Pause Check Total Number of SPI FLASH Files START LENGTH COMMAND END Ox7E 0x02 OxC3 Ox7E Return value COMMAND RETURN VALUE 0xC3 File numbers 2Bytes Check Total Number of SD Card Files START LENGTH COMMAND END Ox7E 0x02 OxC4 Ox7E Return value COMMAND RETURN VALUE 0xC4 File numbers 2Bytes Check Total Number of U Disk Files START LENGTH COMMAND END Ox7E 0x02 0xC5 Ox7E Return value COMMAND RETURN VALUE 0xC5 File numbers 2Bytes i Check Current Playing File START LENGTH COMMAND END Ox7E 0x02 0xC6 Ox7E Return value COMMAND TRACKS HIGH BYTE TRACKS LOW BYTE 0xC3 XX XX TRACKS HIGH BYTE and TRACKS LOW BYTE are the same with OxAO command Please refer to Command 0xAO Get user defined data START LENGTH COMMAND END Ox7E 0x02 OxC7 XE Return value COMMAND RETURN VALUE 0xC7 XX XX XX XX 4 bytes www elechouse com N
12. www elechouse com Arduino MP3 Shield User Guide Instruction SFD200 8GB Arduino MP3 Shield is a high quality MP3 module supporting standard MP3 and WAV format audio files It also supports three kinds of storage devices including an onboard SPI Flash external SD Card and U Disk www elechouse com The Arduino MP3 Shield has an onboard 3W Class D stereo audio amplifier which could drive 4ohm load such as loudspeaker The Arduino MP3 Shield has seven buttons and a UART interface that is to say user has two ways to control the module flexibly The UART interface is connected to the Arduino hardware UART by default Since most Arduino boards have only one UART interface this module s UART interface can be redefined to Arduino D7 TX and D8 RX through the jumpers on board With SoftSerial lib Arduino could also send data to this module We tested with 8G SDHC card and 16G U disk It works in perfect compatibility We haven t tested larger SD and U disk yet Feature Plug in and play for Arduino Control by Serial UART interface or keys onboard Directly drive 32o0hm headset On board Audio Amplifier to drive 3W 4Q external loudspeaker 32 levels adjustable volume Support FAT16 FAT32 file system Support up to SD SDHC card and U Disk On board 64MBit SPI FLASH Support copying audio files from SD card or U Disk to SPI FLASH Supporting Sleep Mode Support 16K 320Kbps MP3 files and 8K 44 1KHz sampling rate WA
Download Pdf Manuals
Related Search