Dante Roumega
Published © GPL3+

Arduino Lie Detector

Someone has been eating my cookies! Thankfully Arduino is here to help find out who it is.

EasyFull instructions provided3 hours41,089
Arduino Lie Detector

Things used in this project

Hardware components

Arduino Nano R3
Arduino Nano R3
×1
5 mm LED: Red
5 mm LED: Red
×1
5 mm LED: Green
5 mm LED: Green
×1
LED (generic)
LED (generic)
×1
Resistor 2K
×1
Cables
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)
Hot glue gun (generic)
Hot glue gun (generic)
Soldering Wire

Story

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Schematics

Wiring diagram

Flb6ayeirsb5unr.large

Code

PolyGraph.ino

Arduino
Paste the code into the arduino ide
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);
}

Credits

Dante Roumega

Dante Roumega

11 projects • 82 followers
Im 19 and I love electrical engineering

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