The Spectrum Shield enables your Arduino with the capability of
splitting a stereo audio input into 7-bands per channel.
You can then read the amplitude of each channel using the ADC on your
Arduino allowing you to control everything from LEDs to motors, pumps
to relays, or even fire, all with sound. With this shield you will be
able to have almost any project be able to react to music or sound!
The Spectrum Shield features the MSGEQ7 graphic equalizer display
filter. Two of these ICs allow you to split a stereo audio input into
7-bands (per channel) and read the amplitude of each using the ADC on
your Arduino. The shield is populated with two 1/8" stereo jacks (like
you would find on a pair of headphones). One serves as a stereo input
and the other is a pass-through output which allows you to connect the
Spectrum Shield in-line between your audio source and your stereo
system without interruption. This revision of the Spectrum Shield has
been updated to the Arduino R3 layout but still requires you to solder
on your own headers. As always at Play-Zone, we give the required
stackable headers for free with this shield.
This shield can be used to create sound visualizers, detect patterns
in music or add sound activation to your microcontroller projects.
* Design and example files as Github 
 https://github.com/sparkfun/Spectrum_Shield/tree/HW_1.5_FW_1.0 … more
If you wish to learn more about this product, please visit the manufacturer's website or contact us: firstname.lastname@example.org
Warranty 24 month Bring-in
Limited right of return
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Information subject to change.
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