I like the old fashioned twist-to-set kitchen timers. It's so user friendly, but are not very helpful when it calls to time like 30 seconds for brewing some tea or coffer. On the other hand, I really don't feel like to press some buttons a number of times to set a digital kitchen timer. As a result, I often end up not using my digital timer and get very over brewed coffee and tea.
Anyway, I didn't find product of this kind in stores in Taiwan, so I started to design one my own. (Although I later found some twist-to-set kitchen timers on ebay.)
More detailed instructions here:
https://www.instructables.com/id/an-Attiny85-Twist-to-Set-Kitchen-Timer/
BattChamberCover.stl | 60.9KB | |
Bottom.stl | 1.8MB | |
Encoding_Disk.stl | 757.0KB | |
Original_CAD_files_[Inventor_9.zip | 4.6MB | |
OuterRim.stl | 444.0KB | |
PushButton.stl | 1.1MB | |
Top-m.stl | 1.0MB | |
Top.stl | 880.6KB | |
Twist2SetTimer.ino | 6.7KB |