kafaya abdirahman physical computing · input 1: subject touching fingers on probes. input 2:...
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![Page 1: KAFAYA ABDIRAHMAN PHYSICAL COMPUTING · INPUT 1: Subject touching fingers on probes. INPUT 2: Examiner adjusts potentiometer to set normal conductivity level. OUTPUT 1: RGB LED (like](https://reader034.vdocuments.mx/reader034/viewer/2022043008/5f961cf926ab2d4c46114e15/html5/thumbnails/1.jpg)
KAFAYA ABDIRAHMANPHYSICAL COMPUTING
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� A lie detector is a machine which monitors changes in the human body and estimates if a someone is telling a lie.
� We set the machine to a normal, where someone is telling truth, from that it can read change.
� Lie detectors consider many factors about the human body.
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� My lie detector works because of something called Galvanic Skin response.
� This is how moist the skin is.
� When people lie they sweat a tiny little bit and we can make a machine to read this change in moisture
� As we become more moist we are more conductive
� We can read change of electricity with Arduino board
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� INPUT 1: Subject touching fingers on probes.
� INPUT 2: Examiner adjusts potentiometer to set normal conductivity level.
� OUTPUT 1: RGB LED (like book example) RED = LIE, BLUE = ADJUST, GREEN = AVERAGE
� OUTPUT 2: Sound, Buzzer or speaker on when subject tells a LIE
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� I used www.makercase.com
� From this I created a laser cutter plan
� First I had to add my design
� I used Text in Adobe Illustrator to add my name and design to makercase plan
� I created a SVG file laying out the whole case
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� My final Illustrator design 11/12/2017, 21(30
Page 1 of 2file:///Users/pete/Downloads/KafayaBigBox.svg
!! LIE DETECTOR !!FINE TUNE!
!! LIE DETECTOR !!PLACE FINGERS!
LIE’o’Meter
LIE’o’Meter
LIE DETECTORKAFAYA ABDIRAHMAN
BY
physical COmputing
!!
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� I had to solder on wire for potentiometer, LED and speaker to connect to breadboard.
� I opened box and attach wires, then use small bolts to keep shut. I can open and close my box to fix mistakes.
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FINAL ASSEMBLY
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Final Assembly.� Final Video of the project
https://youtu.be/OmyEYrA__7Y