school react time measuring system, quite fun

[oz2cpu]

really cood unit, ended playing a bit who is fast game with my kids

https://youtu.be/08CPbp-rFe4

maybe an idea for a little arduino project for the holidays ?
program it together with your kids, and then play who is fast ?

[bidrohini]

I especially like the casing. Very compact and easy to use.

[Faranight]

Reminds me of those arm speed tests that teachers sometimes had us do back in elementary where you had a board on the desk that had three large metallic contacts. You would sit down in a chair and place your right hand on the middle contact. Then with your left hand you were supposed to hit the left and right contact in an alternating way as fast as possible and the machine would count the number of hits. You only had a limited time to do it, so the faster you swung your arm the higher you would score.