Silent Coffee Grinder 

A coffee grinder controlled by a small micro controller like Raspberry Pi Link https://www.theverge.com/circuitbreaker/2017/12/20/16798042/diy-silent-programmable-coffee-grinder Source: This silent coffee grinder will save your ears and break your caffeine habit... Read more

Raspberry Pi Zero Travel Companion

If you enjoy drone photography, travel, and not tugging a laptop just to backup SD cards in case the drone falls off a cliff, this project is for you. It can be powered with a backup battery pack and solar energy.  ... Read more