Get Even More Visitors To Your Blog, Upgrade To A Business Listing >>

Arduino lie detector - How to make a simple and easy lie detector with Arduino

Yesterday we studied how to detect Galvanic Skin Response GSR with Arduino.

Today we are going to see how we can use this knowledge to build a simple Arduino based Lie detector.

I found two projects that made sense about the subject.

Actually I have a certain criteria for choosing what projects to post.

First:

There must be scientific and practical credibility for the project.

I mean that it must be real, well written and well researched.

Second:

It must be easy to build and to realize.

Easy doesn't mean with no effort. But easy means that it can be built by following the steps as stated in the project.

That's what I found in those two projects here.


First Project

This project makes the GSR analysis with Arduino and then gives the result on one of two LEDs. Green or RED.

Circuit




Code

void setup()
{
Serial.begin(9600);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
digitalWrite(2, HIGH);
delay(500);
digitalWrite(3, HIGH);
delay(500);
digitalWrite(4, HIGH);
delay(500);
}

void loop()
{
if (analogRead(A0) > 60)
{
digitalWrite(4, HIGH);
}
else
{
digitalWrite(4, LOW);
}
if (analogRead(A0) > 20)
{
digitalWrite(2, HIGH);
}
else
{
digitalWrite(2, LOW);
}
if (analogRead(A0) > 45)
{
digitalWrite(3, HIGH);
}
else
{
digitalWrite(3, LOW);
}

Serial.println(analogRead(A0));
delay(20);
}










Second Project

This project uses temperature sensor to measure skin temperature as one of important parameters of biofeedback.

The project displays the result on an LCD and can also display results of GSR analysis on Processing code just as in yesterday project.

Circuit

Picture of Mount the LCD Screen

Picture of List of Materials


Code

You can find all software for Arduino and Processing here.



Sources: Arduino Website , instructables

















Paid Online Surveys

Check our books on Amazon we created on our way to find happiness.


A Trip To Siwa Oasis: Tourist guide to an Egyptian Oasis by [ElSakhawy, Sara M.]


A Trip To Siwa Oasis




The Ultimate travel bag list by [ Elskhawy, Sara M.]


The Ultimate travel bag list



Why to Travel?: Travel Like an Insider by [M., Sara]


Why to Travel?





3 Easy steps to plan your trip: Travel Like an Insider by [Elskhawy, Sara M.]


3 Easy steps to plan your trip




Solar Artwork: How to Make Your Own Solar Masterpiece by [Ebeed, Ahmed]


Solar Artwork




Backyard Wind Turbines: Harness wind power with simple and fun projects by [Ebeed, Ahmed]


Backyard Wind Turbines























This post first appeared on Embedded Systems In Egypt, please read the originial post: here

Share the post

Arduino lie detector - How to make a simple and easy lie detector with Arduino

×

Subscribe to Embedded Systems In Egypt

Get updates delivered right to your inbox!

Thank you for your subscription

×