liedetector1Screen shot 2012-02-12 at 1.07.31 AMliedetector3liedetector4

LIE DETECTOR

Physical computation project using a pulse sensor, LEDs, and the arduino microcontroller.

Users strap themselves into the device by wrapping the velcro around their index finger. Once asked a question, the button on top of the device is pressed and the user’s heart rate is calculated. If the heart rate exceeds the normal range, the red light illuminates. If it falls within normal ranges, the green light illuminates.