Description

TThe 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 (check the Recommended Products section below). This shield can be used to create sound visualizers, detect patterns in music or add sound activation to your microcontroller projects.

Note: This product is a collaboration with Ben Moyes of Bliptronics. A portion of each sales goes back to them for product support and continued development.

Sparkfun Spectrum Shield

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$29.95

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$38.71

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$27.85

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Description

Note: This product is a collaboration with Ben Moyes of Bliptronics. A portion of each sales goes back to them for product support and continued development.

According to the data, price will be lower in next two weeks, so not waste your money and track better price!

Product review & video

everyone welcome back to another episode of engineering roundtable this week we're going to be talking about audio spectrum analysis and how to analyze the audio spectrum using a microcontroller the methods of spectrum analysis and what to do once you have analyzed an audio spectrum we're going to talk about the methods of filtering what a spectrum analyzer is and then we're going to analyze an audio signal pull some data from it and then do something pretty cool I was looking back at recent videos and they have seemed a bit academic thus far so this time I decided to do something a little more dangerous and fun so stick around so when we take a look at an audio signal on an oscilloscope it looks like this it's this big nasty noisy looking signal and that's because all the frequencies of the music or whatever sound you're trying to play are included in this signal now that's not very go