[arduino] How to make a lie detector

[arduino] How to make a lie detector


















Code :


int redPin = 9;

int greenPin = 10;

int bluePin = 11;

int buzzerPin = 7;



int potPin = 1;

int sensorPin = 0;

long red = 0xFF0000;

long green = 0x00FF00;

long blue = 0x000080;



int band = 10;



void setup()

{

    pinMode(potPin,INPUT);

    pinMode(sensorPin,INPUT);

    pinMode(redPin,OUTPUT);

    pinMode(greenPin,OUTPUT);

    pinMode(bluePin,OUTPUT);

    pinMode(buzzerPin,OUTPUT);



}





void loop()

{

    int gsr = analogRead(sensorPin);

    int pot = analogRead(potPin);

    if(gsr > pot + band)

    {

        setColor(red);

        beep();

    }

    else if(gsr < pot -band)

    {

        setColor(blue);

    }

    else

    {

        setColor(green);

    }

}



void setColor(long rgb)

{

    int red = rgb >>16;

    int green = (rgb >> 8)& 0xFF;

    int blue = rgb & 0xFF;

    analogWrite(redPin, 255 - red);

    analogWrite(greenPin, 255 - green);

    analogWrite(bluePin, 255 - blue);



}



void beep()

{

    for(int i = 0;i< 1000; i++)

    {

        digitalWrite(buzzerPin,HIGH);

        delayMicroseconds(100);

        digitalWrite(buzzerPin,LOW);

        delayMicroseconds(100);

    }

}