Picture of Personal Space Defender
A simple and elegant way to help keep your personal space bubble from being invaded by close talkers and overly huggie people.   This is a stolen or borrowed idea from Phillip Torrone of Adafruit, who mused about something like this on an episode of Adafruit's "Ask an Engineer."  I decided to incorporate this idea into a bow-tie for all those black tie events that I'm forced to attend(no not really, it just seemed the easiest and most discrete way to incorporate the sensor).  The jist of  how it worked is as follows;  If someone gets within 19" of me, red lights flash for a few seconds.  If they stay there, the lights keep flashing.  The distance and flashing rates can easily be changed to suite your needs if your personal bubble is larger or smaller than mine.  

DSCN1778 from Aleksei Sebastiani on Vimeo.

Step 1: Parts

Picture of Parts
Adafruit Flora  http://www.adafruit.com/products/659 
Maxbotix distance sensor  http://www.adafruit.com/products/172 
Adafruit Neo Pixel   http://www.adafruit.com/products/1260
3D printed Bow-tie  https://tinkercad.com/things/lMtQ1vbMAHI-space-invader/ 
Bow-tie loops   https://tinkercad.com/things/77nV1o6NTgt-bowtieholder 
Velco  or fabric collar  
Wire & heat shrink
5mm snaps  http://www.adafruit.com/products/1126
Magnetic backing  http://www.adafruit.com/products/1170

Grissini (author)  Carlos Marmo2 years ago
Danke, denkt meine Frau auch.
: )
wiredcav2 years ago
Grissini (author)  wiredcav2 years ago
Bowties are cool.
Grissini (author)  legodude20202 years ago
Yeah they are!
You should get it to say “Intruder Alert !! Intruder Alert!!”
Grissini (author)  Josehf Murchison2 years ago
I thought about making is sound reactive as well. The little speakers I would use just don't cut it. Thanks for the comment though.
dfranciscus2 years ago
Also known as the Virginity Defender :D

I kid, I kid!

Great instructable, interesting concept. Love the Video and the 3D Editor.
Grissini (author)  dfranciscus2 years ago
Ha! My wife loves that name. Thanks for checking it out.
bekathwia2 years ago
This is fab! Thanks for sharing your process.
Grissini (author)  bekathwia2 years ago
Thanks Becky! I appreciate it. Give my thanks to PT for the idea. And I hope he liked it too. Great Show today! Phillip doesn't need a pin cushion jacket. Just a few blindingly bright LED's will ward people off. This same concept could easily be incorporated into a broach or necklace for ladies.
Nice job! And great video, too. Clean and quick demo, I love it.
Grissini (author)  fungus amungus2 years ago
Thanks Mr. Amungus. I tried to keep it tight. I lose interest in myself after about 30 seconds, I figure most other people would too.