Posts from 2014

The #pragma once directive offers some advantages over the traditional header guard idiom, but as it is not part of the C/C++ standard we have to rely on the – not too verbose – compiler documentations. In this post, I examine what happens if you mix this directive with other preprocessor directives and conditional compilation.

In this article I continue explaining the design of my LED cube. This time I’m going to discuss the driver circuit, explaining the design decisions and calculations behind it.

I have promised LEDs, and lots of interesting topic, but all you got is just some physics stuff, you could say. And you were right, so this time I introduce the design of my LED cube, explaining the decisions that lead to this specific design, which may help others if they are doing a similar project.

Before dealing with complex electronic circuits, we need to get familiar with some basic concepts like voltage, current, resistance and their relation. In this article I provide a realy quick summary of these terms.

It all started a few weeks ago when I decided to build my own LED cube. The decision was easy, but the realization won’t be that trivial. After some research I had to find out that there is more that I must learn than that I already know.