Month: December 2012

December is Glass Month

December is Glass Month

With November behind us, we’re wrapping up our 2012 Year of Materials theme, this month, with a focus on glass. Glass, in the broadest sense of the term, does not imply any particular type of atomic or molecular composition, but rather a particular kind of ordering of atoms or molecules in space. Or rather, a lack thereof. In understanding this it is helpful to contrast glasses with crystals, in which atoms/molecules are arranged in repeating rows, columns, or other identifiable patterns, like cannonballs stacked on a courthouse lawn. Glasses, on the other hand, are more like dice poured haphazardly into a jar.

BLE Shields in the Maker Shed: One-Tap Wireless Between Arduino and Cell Phones

BLE Shields in the Maker Shed: One-Tap Wireless Between Arduino and Cell Phones

Maker Shed is now carrying RedBearLab’s Bluetooth Low Energy (BLE) Shield. It’s an inexpensive, simple, and fun way to get Arduino talking to an iPhone, iPad, or even some Macs… and probably a few Android devices as well. True to its name, BLE is low power, and it’s also easy. Check out the walkthrough in the second half of this post: with a few clicks (or taps) I got my iPad and Arduino talking the universal language of blinkenlights!