Seeed Grove 101020058 User manual

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Grove - EMG Detector
Version：1.0
Release date：9/20/2015
Wiki: http://www.seeedstudio.com/depot/Grove-EMG-Detector-p-1737.html
Bazaar: http://www.seeedstudio.com/wiki/Grove_-_EMG_Detector

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Document Revision History
Revision
Date
Author
Description
1.0
Sep 21, 2015
Victor.He
Create file

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Contents
Document Revision History··································································································· 2
1. Introduction ···················································································································2
2. Features··························································································································3
3. Interface function···········································································································4
4. Demonstration ···············································································································5
4.1 Hardware Installation········································································································ 5
4.2 Download Code and Upload ····························································································· 5
4.3 Move ·································································································································6
5. Resource·························································································································7

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Disclaimer
For physical injuries and possessions loss caused by those reasons which are not related to product quality,
such as operating without following manual guide, natural disasters or force majeure, we take no
responsibility for that.
Under the supervision of Seeed Technology Inc., this manual has been compiled and published which
covered the latest product description and specification. The content of this manual is subject to change
without notice.
Copyright
The design of this product (including software) and its accessories is under tutelage of laws. Any action to
violate relevant right of our product will be penalized through law. Please consciously observe relevant local
laws in the use of this product.

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1. Introduction
EMG detector is a bridge connects human body and electrical, the sensor gathers small muscle signal then
process with 2th amplify and filter, the output signal can be recognized by Arduino. You can add this signal
into your control system. Note: The sensor cannot be used for medical purposes.
In standby mode, the output voltage is 1.5V. When detect muscle active, the output signal rise up, the
maximum voltage is 3.3V. You can use this sensor in 3.3V or 5V system.

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2. Features
Grove Compatible
3.5mm Connector
6 Disposable Surface Electrodes
Power supply voltage: 3.3V-5V
1000mm Cable Leads
No additional power supply

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3. Interface function
J2: grove interface, connect to analog I/O;
J1: EMG Disposable Surface Electrodes connector.
U1: INA331IDGKT, difference amplifier.
U2, U3: OPA333, Zero drift amplifier.

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4. Demonstration
This demonstration will show you how to use Grove - LCD RGB Backlight, we need a Seeeduino V3.0,
a Grove - LED Bar and Grove - Base Shield.
4.1 Hardware Installation
Plug Grove - Base Shield to Seeeduino, then connect Grove - LED Bar to D8, connect Grove - EMG Sensor to
A0.
Finally, tack the three electrodes to your muscle, and keep a distance between each electrodes.
4.2 Download Code and Upload
You can download the demo code in github, click here, then extract it to anywhere.
Then upload the code to Seeeduino, if you have any problem about code uploading, please refer
to Getting Start Wiht Seeeduino.

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4.3 Move
When finish downloading demo code, it'll take about 5s to initialize, you should keep static when initializing.
You can see that when initializing, the Led Bar will go form level 10 to level 0. When Led Bar All off, you can
move now.
When you are moving, you can find that the level of Led Bar will change.

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5. Resource
Grove-EMG Sensor v1.0 Eagle File
Grove-EMG Sensor v1.1 Eagle File
Demo Code