As a way to set the mood in his family room, when he
remodeled Joe Peck put multi-color LEDs behind the crown molding. The major
circuit uses a microcontroller and LED drivers located in a closet, and a small
circuit board at each room corner to connect to red-green-blue LEDs. Perhaps
Joe's lights will get you in the mood for something "interesting,"
like submitting your own Gadget Freak circuit!
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.