Surely many of you have ever wondered if the things they tell you are true or not or if your friend is deceiving you. For this exists a gadget that solves it called a polygraph or lie detector.
A gadget that so far costs a lot of money and has a high level of knowledge to determine if the user is lying or not. But a 17-year-old boy named Dante Roumega, has achieved a cheaper, faster and easier method with a homemade lie detector which also uses an Arduino board for its operation.
This lie detector has three LED lights for those who do not have a computer with graphics at hand
The operation of this lie detector is simple because measures the galvanic response of our skin. Thus, before a false answer, our skin will emit a greater response and the Arduino board registers it, indicating whether the user is really lying or not. In addition, this lie detector has built-in three LED lights that will tell us instantly if the user is lying or not, without having to go to the graphs.
Thus, on the one hand the user of this lie detector has to connect the Arduino board to a computer and on the other hand you have to connect the sensors to the user, sensors that are fastened with velcro, aluminum foil and a tape.
Many of you will say that you have an Arduino board and sensors that can even be exchanged for aluminum foil, but How do i get the software? Fortunately the software is also available in the project websiteIt is free and we can download it to create our own lie detector, a lie detector that does not need even great knowledge of polygraphy nor large amounts of money to buy this gadget. And all thanks to Free Hardware, although we still cannot use it to know if our partner is cheating on us. Or maybe yes?