Priya Kuber —

The next time you want to find out which of your little cousins ate the cookie from your jar, you can use your Arduino and everyday electronics items to make your own lie detector!

Materials needed: Arduino, aluminum foil, velcro, wire, a 10 K resistor, breadboard

A detailed step-by-step approach is taught here.

So snap on and find the cookie monster! >:)

Via:[mad-science, Dangerousprototypes]