Pocket biometric reader for games of exclusion!
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Uploaded by aromaoftacoma253 on Jul 21, 2011
Kids love games of exclusion. "You're a zombie!", "You've got cooties!", "You can't come in my room because....". I must hear this 500 times a week around the house. Well, after some exhaustig research we have discovered that zombification and cooties have a similar galvanometric effect on the victim's skin. Sooo....
This device will provide the following feedback depending on your skin's resistance:
"CLEAR" = Green light after test sequence.
"INFECTED" = Red flashing light and then solid red after test sequence.
"DEVICE TAMPERED" = Alternating red and green lights (as seen when I shorted it with the screwdriver).
Code:
From the Arduino IDE use the "BLINK", "FADING" and "ANALOG INPUT" examples.
Mix them together to your liking.
Parts:
This could easily be an Arduino project but I put the final version on an ttiny45 to keep it pocket sized. This device was made for field verification.
(1) attiny45
(1) coin cell holder
(1) 100ohm resistor
(2) 1Mohm resistors
(1) small perf board from Radio Shack
(1) Piranha RGB LED
(1) Paperclip for sensing element
The smaller loop of paperclip is tied directly to GND. The large paper clip is right in the middle of a simple voltage divider between the two megohm resistors. An analog reading in thte middle of the range just fades the green LED. Anythin lower starts the test sequence. Lower analog readings = higher infestation level. Short = tamper.
ENJOY!
- 8 likes, 0 dislikes
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Really nice... useful in case of zombie apocalypse.
Mrkirill578 7 months ago