kafaya abdirahman physical computing · input 1: subject touching fingers on probes. input 2:...
TRANSCRIPT
KAFAYA ABDIRAHMANPHYSICAL COMPUTING
� 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.
� 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
� 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
� 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
� 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
!!
� 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.
FINAL ASSEMBLY
Final Assembly.� Final Video of the project
https://youtu.be/OmyEYrA__7Y