A physical, open source time puncher for freelancers (nycresistor.com)
Raphael Abrams shows us his Freelance “Puncher” time tracking device. After trying many different methods for keeping track of his hours, Raph created this little puncher to easily clock in and out of his freelance work.
Check out the code and schematics here: https://github.com/raphaelabrams/freelance-puncher
20 comments
[ 7.4 ms ] story [ 106 ms ] threadExcellent job.
See section "5.7.1.3 Durability or Insertion/Extraction Cycles (EIA 364-09)" of the USB 3.0 standard. I'm sure it's in 2.0, too, but the section number may be different.
http://www.usb.org/developers/docs/
This gave me convenient time tracking and reminded me to get up and take breaks.