Line: The Best-Dressed Nerds Are Wearing These Open-Source iCufflinks

The nerds at Adafruit, our favorite open source hardware makers, have just released the iCufflinks, handsome, battery powered glowing cufflinks that pulse at the same speed as the Macbook’s “sleep” light. The circuitry inside is entirely open source (you can grab the source here) and the $128 links are made in North America and Canada.

They used an oscilloscope to actually reverse engineer Apple’s pulse pattern, a calming fade that is actually timed to the respiration of the human body at rest.