KIT INCLUDES:
HARDWARE REQUIRED
SOFTWARE REQUIRED
Arduino IDE 1.8.5 (programmable platform for Arduino)
Click To Download :https://www.arduino.cc/en/Main/Software
SPECIFICATIONS
Arduino Nano
- Microcontroller:Â Atmel ATmega168 or ATmega328
- Operating Voltage(logic level):Â 5 V
- Input Voltage(recommended):Â 7-12 V
- Input Voltage(limits):Â 6-20 V
- Digital I/O Pins:Â 14 (of which 6 provide PWM output)
- Analog Input Pins:Â 8
- DC Current per I/O Pin:Â 40 mA
- Flash Memory:Â 16 KB (ATmega168) or 32 KB (ATmega328) of which 2 KB used by bootloader
- SRAM:Â 1 KB (ATmega168) or 2 KB (ATmega328)
- EEPROM:Â 512 bytes (ATmega168) or 1 KB (ATmega328)
- Clock Speed:Â 16 MHz
LED
- It is exceptionally bright with a wide beam angle, so they’re suitable for use in illuminations, headlamps, spotlights, car lighting and models.
- The 5mm LED can be used anywhere where you need low power, high-intensity reliable lighting or indication.
- Voltage: 3.2V to 3.4V
- Current: 20 mA
- Typically Recommended Voltage: 3.2V
PIN DESCRIPTION
Arduino nano
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LED
CIRCUIT DESCRIPTION
- Connect a piece of cable to Arduino Nano Analog Pin 0.
- Connect the 2k resistor to GND and the extended analog pin A0 of the Arduino Nano.
- Connect a piece of cable to Arduino 5V Pin.
- Connect the anode (+ve/long leg) of the green led to pin 2 and the cathode (-ve/short leg) to GND of Arduino Nano.
- Connect the anode (+ve/long leg) of the orange led to pin 3 and the cathode (-ve/short leg) to GND of Arduino Nano.
- Connect the anode (+ve/long leg) of the red led to pin 4 and the cathode (-ve/short leg) to GND of Arduino Nano.
CODE
Click to see code here:Â https://drive.google.com/open?id=1JmYqbpbuHj8a2a-JS7hNpp6uMzrQs6To
WORKING AND OUTPUT
Welcome to the Arduino based Lie Detector which consists of Arduino Nano, LED’s and resistor. It must be made sure that connections are made in an appropriate manner as given in circuit connection.
Here’s the basic functionality for Lie Detector. 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.
Our mood! It called Electro dermal activity (EDA). The basics are that our skin changes its conductivity depending on “How we feel”.
We start by connect our Arduino to the subject and then connect the Arduino & we can see the output on serial plotter or monitor. We have to 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 see the visual change.
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