Grove - GSR sensor

SKU 101020052
9.90
50+ Available
$9.90/ 1pcs+
$8.91/ 10pcs+
$8.41/ 20pcs+
$7.92/ 50pcs+

Description

GSR stands for galvanic skin response and it is a method of measuring the electrical conductance of the skin. Strong emotions can cause stimulus to your sympathetic nervous system, resulting more sweat being secreted by the sweat glands.


Grove - GSR allows you to spot such strong emotions by simply attaching two electrodes to two fingers on one hand. It is an interesting gear to create emotion related projects like sleep quality monitor.


Note: This device is not a medical device.


Features

  • Detects conductance of skin

  • Finger Straps for electrodes


For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.


Technical Details

Dimensions24mm x 20mm x 9.80mm
WeightG.W 29g    
BatteryExclude
Input Voltage 5V/3.3V
Sensitivity adjustable via a potentiometer

Part List

Grove - GSR Sensor1

ECCN/HTS

ECCNEAR99
HSCODE9031900090

Certification

RoHSCompliant

Reviews

Questions and Answers

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0
What is the actual output of the GSR sensor (in numerical terms) given that I wish to obtain the Skin Conductivity Level. Kindly I would appreciate some guidance. Thanks
on Feb 18,2018
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Hi there~ The output voltage is an analog singnal which reflects the resistance of hunman skin.Which follows the equation : Human Resistance = ((1024+2Serial_Port_Reading)10000)/(512-Serial_Port_Reading).If you want to know how this formula is derived,please check here ### https://www.seeed.cc/topic_detail.html?id=13059 ###Regards
on Feb 19,2018 10:43 AM
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Is there an equation to convert from Human resistance to Skin Conductivity Level. Can you please guide me? Thanks.
on Feb 19,2018 19:29 PM
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Hello~ OK,let me help you, please check the link below ### https://github.com/SeeedDocument/USB-CAN_Analyzer/raw/master/res/1122.png ###.Actually,you can google conductivity and resistance.So,if you want to use this sensor to measure the conductivity,you need to know the lenth and area of your skin.Regards
on Feb 20,2018 20:28 PM
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I am getting a page not found error. Can you please post the link again?
on Apr 05,2018 06:26 AM
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I am trying to understand how the formula for resistance was derived. The link provided shows page not found error.
on Apr 05,2018 06:28 AM
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Hi,this page is not found https://www.seeed.cc/topic_detail.html?id=13059 I want to know how this formula is derived, but this web page is not found
on Apr 09,2018 20:50 PM
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0
I want the output to be captured at regular intervals and logged in a file (such as CSV). Is it possible to do this? Thanks. - Kanad
on Nov 27,2016
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you can add an SD card component to arduino and write to there, then move the file anywhere.
on Jun 05,2017 19:56 PM
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0
Hello techsupport The Link is not working: https://www.seeed.cc/topic_detail.html?id=13059 Can you please correct it?
on May 16,2018
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Hi Nicholas~ We've got your message. We will fix it soon.
on May 16,2018 08:52 AM
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HI there~ We have fixed the link,please check.
on May 17,2018 08:21 AM
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1
Is threshold 600 normal? I'm afraid it's bad.
on Nov 06,2017
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Hi there~ Could you please tell us more detail, such as the hardware connection and the code you use. You can contact our email # techsupport@seeed.cc # regards
on Nov 14,2017 13:37 PM
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0
Is it compatible to PIC microcontroller?
on Sep 14,2017
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Hi~We have not tested it with PIC,but theoretically it is compatible.It's a digital sensor,you can read the data via any digital pins.But you need to code by youself.
on Sep 14,2017 15:49 PM
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0
So, what is the normal GSR value of the skin for a healthy person?
on May 04,2017
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Hi there~ the value is affected by many factors,so the normal value is hard to say.In fact, what matters is the trend of data changes.Regards
on Nov 14,2017 16:38 PM
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0
Some time sensor start giving very low value close to zero as output in some subject, though the connections are okie and sensor is calibrated. what can be the reason?
on Apr 01,2018
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Hi there~ Could you please tell us more detail, such as when you start , the sensor on your hands or out of hand , and could you please attach the hardware connection pic. and the code you use. you can email to us. ====================================================================== techsupport@seeed.cc
on May 09,2018 11:50 AM
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0
What is the Voltage Input Low and Voltage Input High Thresholds?
on Feb 18,2018
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Hi there~ You can refer to the data sheet of the LM324 ### https://raw.githubusercontent.com/SeeedDocument/Grove-GSR_Sensor/master/res/Lm324.pdf ###.Besides,for this sensor we use 5V vcc,the output is an analog signal.Regards
on Feb 18,2018 20:18 PM
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0
Hi, does this sensor use an exosomatic or an endosomatic smethod? That is: are you 1) passing an external current across the skin and measuring the resistance or are you 2) recording the skin potential without any external current? If the response is "1", what is the voltage applied between the two electrodes?
on Feb 16,2018
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Hi there~ Actually, it is "1",and the voltage is no more than 2.5V, you can refer to the .sch file here ### https://github.com/SeeedDocument/Grove-GSR_Sensor/raw/master/res/Grove%20-%20GSR_v1.2_SCH.pdf ###.Regards
on Feb 18,2018 20:36 PM
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0
To possibly use this for scientific reasons I would need to have the output in Microsiemens (µS). Do you know how can I get it starting from your output? Thanks, Gianluca
on Feb 14,2018
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Hi there~First of all,we do not recommend using this sensor for scientific research.Second , the output of this sensor is human skin resistance.And follows the equation: follows the equation : Human Resistance = ((1024+2Serial_Port_Reading)10000)/(512-Serial_Port_Reading). Best regards
on Feb 19,2018 10:52 AM
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    Grove - GSR sensor

    SKU 101020052
    $9.90
    50+ Available
    $9.90/ 1pcs+
    $8.91/ 10pcs+
    $8.41/ 20pcs+
    $7.92/ 50pcs+
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