Makeshift face touch warner

by rmoehn1 min read18th Mar 20204 comments



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>