Natanel Eizenberg decided to build a sensor module that would
detect and measure carbon monoxide and methane to help ensure safe environments
for his co-workers and family. But in addition to creating an alarm circuit, Eizenberg
added a wireless link that communicates with a nearby PC. Adding a wireless
gateway could extend monitoring and control operations to the Internet.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.