Sunday, October 4, 2009

GSR Lie Detector

This is a lie detector project that I designed, built and coded myself. It uses an Arduino to measure the user's galvanic skin response, and then lights up the LED meter to indicate the likelihood that the user is lying. When you first turn it on, it will take a baseline test. Then it will read out to the LEDs. The sensitivity can also be easily changed. Although even the most sophisticated lie-detecting technology is not always accurate, this is a simple demonstration of the idea that one's hands sweat more when they lie/are nervous. I plan to add comments to the code and make a nice enclosure for the circuit, and submit this as a Make Magazine project.

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