ElectroLund

Function pointers

Here’s a great quote by John Bass on an EDN article about function pointers as an implementation of state machine design: Failure complexity is a metric of a design. http://www.edn.com/electronics-blogs/embedded-basics/4406821/Function-pointers—Part-3–State-machines

AC multi-way light switch

switching circuit

My garage has a single light switch in it for its overhead fluorescent lights. This light switch is not conveniently located; it is situated beyond our freezer, such that one has to walk into the darkened garage in order to turn the switch on. So I made an electronic 3-way switch. “Why?”, you ask. Indeed.…

The Cabin In The Woods

Major Spoilers Before I begin, note that every word following this is considered a major spoiler for the film. So, what would happen if you threw Men In Black, Cube, Hellraiser, and most every scary-secluded-cabin-for-teenagers movie in a blender?  The Cabin In The Woods would happen. This is the film from 2012 from Avengers wonder-boy…

Surround Sound Debug

Test LED circuit.

For some reason, this keeps happening to me. I must be doing it wrong. But I’ve either been too stubborn or too distracted to find the better way to do it. I’ve installed surround sound wiring into my abodes at least five times (twice in my bachelor days at two different apartments, and thrice in…

Typeface

I caught this nice little Kickstarter video today while reviewing the top 2012 funded projects.  It’s a typeface commissioned by the city of Chattanooga.  Their pitch video is really well done, in that Helvetica, designer-friendly way.  It reminds me of the really excellent podcast “99% Invisible” by Roman Mars, which explores the hidden world of…

Career hop

There are hunters and there are gatherers.  I’m more the latter, my wife the former.  I like to settle down and dig my roots in.  What can I say, I don’t like change. The same goes with my job choices.  My first job post-college lasted 10+ years.  It basically fell into my lap — a…

Prometheus vs. Avatar

Prometheus Infographics

The planet Pandora has nothing — and I mean nothing — on the little moon SC-223. This place scared the (R-rated expletives) out of me; it was unnerving, frightening, dreadful, in all the ways that Pandora was not. I’m referring to the hostile alien environments from the movies Avatar and Prometheus.  Both have certain distinct…