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Lie Detector using Arduino

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Lie Detector using Arduino

Lie Detector using Arduino
Lie Detector using Arduino


Our skin is amazing! It provides a medium for us to experience the sense of touch. It keeps infections out and keeps innards in but I bet you didn’t know that our skin changes conductivity depending on many different things one being our mood! It is called Electrodermal activity (EDA) and there’s a really interesting Wikipedia page you can read here. The basics are that our skin changes its conductivity depending on how we feel. So tody we are going to make a Lie Detector using Arduino. This lie Detector will detect if the person on whom we are testing this is telling a lie or not.

We start by connect our Arduino to the subject. Then connect the Arduino to a computer with the graphing software (I’ll go over this in detail later).

Lets start by asking the subject some easy questions. We know they will answer truthfully like “What is your name?” and “Where do you live?” to get a baseline and from there we can start asking questions that they may lie about. If they do they would probably feel nervous and then we can read the change in the base line that be established earlier if they lie :D.

YouTube Video for Lie Detector
Normal Response

To know how to make this thing. Watch our YOUTUBE Video.

Best Buy



Arduino UNO – https://www.gearbest.com/arduino-uno-_gear/?lkid=15018409

Arduino Full Kit – https://www.gearbest.com/development-boards/pp_211518.html?wid=1433363&lkid=14127055

Treansmitter Fi-a6 – https://www.gearbest.com/rc-car-parts/pp_210798.html?wid=21&lkid=13702638

Quadcopter Kit – https://www.gearbest.com/multi-rotor-parts/pp_294317.html?wid=21&lkid=13702609

Amazon India

Arduino UNO R3 – https://amzn.to/2n8NbWi

Ultrasonic Sensor hc-sr04 – https://amzn.to/2ACHEkl

Arduino Beginners kit – https://amzn.to/2n6LUPj

Wi-Fi Wireless Transceiver Module for IOT ESP8266 – https://amzn.to/2M0ttd8

NodeMcu WiFi Development Board – ESP8266 – https://amzn.to/2LOQgtd

Bluetooth Transceiver Module – https://amzn.to/2M077sj

37 in 1 Sensor Modules Kit for Arduino – https://amzn.to/2vysGpA

Servo Motors 2 – https://amzn.to/2AEeJMO

Arduino Nano V3 with USB Cable – https://amzn.to/2vxcxRo

Quadcopter Kit Quad Copter – https://amzn.to/2ADuzqS

Social Links

Facebook – https://fb.com/robocircuits

Instagram – https://instagram.com/robocircuits

Twitter – https://twitter.com/robocircuits

Instructables – https://www.instructables.com/member/PrashantS161/

Arduino – https://create.arduino.cc/projecthub/robocircuits


Schematics for Lie Detector

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Schematics for Lie Detector


Code for Lie Detector




8 projects • 59 followersYouTuber, Explorer, Creator, Programmer, Arduino Lover and Engineer


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