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Conductive thread and sewing supplies

, or 

hook-up wire

 and 

soldering tools

. (

TIP:

 

alligator

cables

 are a great way to quickly test out circuits and programming before committing to

needle and thread!)

A 

micro-SD card

.

Some audio files you'd like to play. The LilyPad MP3 Player can play many audio formats, you
can see the whole list 

here

.

Instructions

1.  Put up to five audio files onto the micro-SD card. Usually this is done by putting the card into a

reader attached to your computer and copying audio files to it. The LilyPad MP3 Player will
play a number of audio formats including MP3, WAV, WMA, AAC, MID, etc.

2.  Rename the audio files on the micro-SD card so that the first character of each filename is the

number "1" to "5", corresponding to the trigger that you want to play that file. You don't need
to change anything else about the filename.

3.  Turn off the LilyPad MP3 Player and plug your micro-SD card into the socket. Push it in until it

clicks; if you release it, it will stay seated. To remove it, push again until it clicks, and it will pop
out when you release it.

4.  Connect a headphone to the headphone jack, 

or

 connect speakers to the left and right

speaker terminals. 

(Note that when anything is plugged into the headphone jack, the speakers

are disabled. 

This behavior can be changed if desired

).

Page 10 of 28

Summary of Contents for LilyPad MP3

Page 1: ...ing the Board into Your Project Getting Started with the Player Sketch Hardware Details and Hacking Tips Troubleshooting Supported Audio Formats Writing Your Own Code Resources and Going Further Intro...

Page 2: ...LilyPad MP3 DEV 11013 49 95 4 Favorited Favorite 19 Wish List You can use the LilyPad MP3 Player to create all kinds of noisy projects your imagination is the only limit Page 2 of 28...

Page 3: ...of the following topics that will be covered in this tutorial if you are not comfortable with them already How to install an Arduino Library Battery Technologies Sewing with Conductive Thread Using G...

Page 4: ...pecific files when the input pins are grounded You can also add an optional rotary encoder and load the Player software to turn the board into a real audio player or evenwrite your own software using...

Page 5: ...6 pin 5V FTDI header to both recharge an attached Lipo battery and to reprogram the board if desired see this note about powering the board from USB And finally there is amicro SD card socket into wh...

Page 6: ...nctions such as serial ports that you can use to communicate with other devices in more complex projects The alternate functions are listed in the table below You ll also use the pins to connect to ex...

Page 7: ...erial monitoring will be disabled T5 Trigger 5 RX General purpose I O pin Arduino pin D0 You ll usually connect this through a switch to ground Can also be used as RX receive in a serial connection Do...

Page 8: ...akers will sound better than small ones so use the largest ones that your project will accommodate Don t worry that the speaker is marked 20 watts or higher that is just the maximum power that the spe...

Page 9: ...blem by translating the file into a different format using the audio software of your choice The LilyPad MP3 Player is washable but because conductive thread connections can be fragile we recommend wa...

Page 10: ...of audio formats including MP3 WAV WMA AAC MID etc 2 Rename the audio files on the micro SD card so that the first character of each filename is the number 1 to 5 corresponding to the trigger that you...

Page 11: ...wer to run the board so a battery or other external power source is required 6 Move the power switch to ON The red LED should light up 7 Wait a few seconds for the software to start up Now momentarily...

Page 12: ...t that control whether triggers can restart an already playing clip send debugging information to the serial monitor window etc You can easily change these settings if desired or make any other change...

Page 13: ...maging yourself or the board Switches You can certainly use hardware switches if you wish If you re doing a fabric project you may want to use a soft switch A soft switch acts just like its hardware c...

Page 14: ...ich is close to the 5V FTDI header Battery To keep the battery from flopping around and possibly breaking its wires we recommend sewing a little pocket to hold it snugly Don t sew it in permanently yo...

Page 15: ...k of the board to install the encoder Required Materials RGB Rotary Encoder Clear Plastic Knob Optional Soldering tools soldering tools i e soldering iron solder safety glasses etc A single cell 3 7V...

Page 16: ...ncoder s pins into the holes in the center of the LilyPad MP3 Player Note that it goes into the top side of the board the side with the silkscreen that indicates where the encoder goes Flip the board...

Page 17: ...That s it 2 Install the Arduino software If you haven t download and install the free Arduino IDE Integrated Deveopment Environment available from www arduino cc Follow the instructions there for you...

Page 18: ...Pad MP3 Player s power switch The red LED should light up Start the Arduino IDE and load the Player sketch from the LilyPad MP3 Player folder From the IDE s Tools Board menu select Arduino Pro or Pro...

Page 19: ...test out circuits and programming before committing to needle and thread 8 Plug a 3 7V single cell Lipo battery into the JST connector Note that a FTDI USB connection will not provide enough power to...

Page 20: ...Polymer battery SparkFun carries these inseveral sizes which translates into different run times It is recommended that you use a Lipo battery of at least 500mAh to match the default 500mA rate of the...

Page 21: ...andard 9090 ohm resistor so use the next larger standard size which would be 10k Before soldering on the new resistor remove the existing surface mount resistor within the white box You can remove it...

Page 22: ...trace running between the pads If you want to sever the I2C connection to the amplifier carefully cut the traces between the pads using a hobby knife If you d like to restore the connection later use...

Page 23: ...the SPI port in time for the next data transfer to take place If you don t the VS1053B will run out of buffered data and starve causing a gap or glitch in the playback See Bill s documentation for in...

Page 24: ...etch ensure that your filenames have one of the following extensions MP3 WAV MID MP4 WMA FLA OGG AAC Note that the VS1053 itself does not care what the filename is you can use any of those on any file...

Page 25: ...es we realized that the files contained an image of the album cover as part of the metadata Since this data is at the beginning of the file the VS1053 chip had to read through and ignore all the image...

Page 26: ...ndow size 64 4096 samples Sample rate 48 kHz max Bitrate 500 kbit s max AAC AAC MP4 M4A language bash Two channels max Sample rates from 8 kHz to 96 kHz rates 48 kHz are downsampled to 48 kHz Bitrates...

Page 27: ...e We ve included this code is in the examples directory You can download the LilyPad MP3 Player code from thegithub repository Clicking the ZIP button on that page will download the latest version You...

Page 28: ...torials Dungeons and Dragons Dice Gauntlet Using the LilyPad TinyTwinkle board For more MP3 related tutorials visit these links MP3 Player Shield Quickstart Guide Elevator TARDIS Office Door Castle Kn...

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