> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Spectrum Shield

**Type:** Product page · **SKU:** DEV-13116 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/spectrum-shield-11897.html ([markdown](https://core-electronics.com.au/spectrum-shield-11897.html.md))

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!

## Pricing

- **Price:** $51.90 (inc GST) — $47.18 AUD, exc GST
- **Quantity discounts:** 5+ $45.76 (exc GST) · 25+ $44.82 (exc GST) · 100+ $42.94 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 17 and Aug 18.

## How to buy

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## Description

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 (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.

## Documents:

- [Schematic](https://core-electronics.com.au/attachments/localcontent/Spectrum_Shield_v15_912639800e7.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/Spectrum_Shield_v15_13873cb2b04.zip)
- [Hookup Guide](https://learn.sparkfun.com/tutorials/spectrum-shield-hookup-guide)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/MSGEQ7_5-11_18586ce2633.pdf) (MSGEQ7)
- [GitHub](https://github.com/sparkfun/Spectrum_Shield/tree/HW_1.5_FW_1.0) (Example Code & Design Files)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/e/dev-13116.jpg)