This breakout board is the ultimate companion for the VLSI VS1053B DSP
codec chip. The VS1053 can decode a wide variety of audio formats such
as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM
and ADPCM). It can
also be used to record audio in both PCM (WAV) and compressed Ogg
Vorbis. You can do all sorts of stuff with the audio as well such as
adjusting bass, treble, and volume digitally. There is also 8 GPIO
pins that can be used for stuff like lighting up small LEDs or reading
All this functionality is implemented in a light-weight SPI interface
so nearly any microcontroller can play audio from an SD card. There's
also a special MIDI mode that you can boot the chip into that will
read 'classic' 31250Kbaud MIDI data on a UART pin and act like a
synth/drum machine - there are dozens of built-in drum and sample
effects! But the chip is a pain to solder, and needs a lot of extras.
That's why we spun up the best breakout, perfect for use with an
Arduino but also good for other microcontrollers that just don't have
the computational power to decode MP3s.
The breakout is slim enough to fit on a breadboard with 1 row of
holes left over for wiring. There's 3.3v and 1.8v regulators onboard
with ferrite beads and analog filtering for quality analog output.
There's a microphone input port that you can wire up a line-in or mic
to and record compressed audio. All 8 GPIO are broken out and they all
have built in 100K pulldowns, simply connect your button from the GPIO
pin to 3.3V for an active-high connection. You'll likely want to play
music from a microSD card so we added a holder on-board. And since we
know so many of our customers use 5V microcontrollers like the
Arduino, we made the interface pins all 5V compliant with level
shifters so you can use the chip at 3V or 5V power/logic!
Each order comes with a fully assembled and tested breakout board,
some 0.1" male header you can solder to the breakout so it plugs into
a breadboard and a bonus stereo headphone jack that will be handy when
you want to plug headphones in!
New! As of Sept 24 2013, all orders will come with v2 which is nearly
identical but now has 220uF stereo blocking capacitors on the output.
This means you can plug the output into headphones or a stereo without
risk of damage. Essentially we integrated the extra capacitors onto
the PCB itself, saving you wiring and effort! If you have an older
v1.0 which does not have the two big round silver capacitors on board,
you can drive a pair of 30ohm headphones directly from the LOUT/ROUT
pins if the 'ground' connection is tied to GBUF however this is not a
line-out connection. If you want to connect to a stereo system or
powered speakers with a v1.0 board, fit the two included 100uF
electrolytic caps in series on the LOUT/ROUT pins between the breakout
and the input of the stereo, then connect the common ground to AGND
Check out our detailed tutorial & excellent Arduino library that
demonstrates everything cool about this library: playing music off an
SD card, using the GPIO pins as input/outputs, playing music using an
interrupt (so it\'s in the background), using the VS1053 as a MIDI
synthesizer (no SD required), and recording Ogg vorbis audio from a
microphone/line-in to SD.