Makeshift face touch warner

by rmoehn1 min read18th Mar 20204 comments


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montage of face touch warners

If you strap this device to your forearm, it vibrates when you raise your arm to touch your face. Useful? Not sure, because one gets many false positives. Cheap? Yes. Applicable everywhere? Yes.

Update 2020-03-19: I've been using it all day while working at my desk and it has warned me of touching my face several times. I got rid of false alarms while typing, mousing or handwriting by pointing the tilt switch slightly towards the outside (ulnar side) of my arm.

It consists of three main components (available from Amazon and other online retailers):

  • tilt switch
  • vibration motor
  • 3 V battery

Plus some cardboard and tape. No soldering required. For holding this to your arm, you can use a sweat wristband or the elastic part of an old sock. Or rubber bands if you're hard up.

If you want to know details of how to build it, let me know and I will improve the design and post instructions here. (People coming from the outside can email me: <given name of President Nixon>


4 comments, sorted by Highlighting new comments since Today at 12:55 AM
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As one of the Immutouch founders, I think this is really cool[1]! What is the Japanese in the background?

  1. Even though ours is more accurate. ↩︎

Thanks! Yeah, yours must be more accurate and also cost-competitive, if you factor in the manual labor for building my device. The only advantage of mine is that people can make it at home, which means there are no supply problems.

The Japanese in the background is Asahi Shinbun (a newspaper). I live in Japan, so this is my go-to desk protector when working with a knife. 🔪📰 :-) How come you know how to distinguish Japanese from Chinese characters?

I can read Chinese.