Dummy Load Prototype

Started a new project inspired by here, here (polish) and here. Currently assessing using IRF830 for the N-Channel MOSFET component of the design.


OpAmps for Everyone

A very thorough and useful reference produced by Ron Mancini at Texas Instruments. A must read for anyone takes OpAmps seriously: „OpAmps for Everyone”


Redesigning the blog

I decided a need a new theme for this blog. Rolled my sleeves and started to work.


FTP in Mac OS X Lion

With the release of their latest OS, Lion, Apple dropped support for FTP activation via System Preferences → Sharing. As all my wordpress developments are tested locally on a MacBook Pro, I needed to have a way to use FTP for remote plugin installation or system upgrades. It seems that even if FTP activation is …


A tiny workspace

Haven’t been online and active for some time. I was very busy accommodating a small workspace in the living room. I have some IKEA pieces of furniture that I did not want to modify extensively, but to adapt somehow for my small projects. I built a shelf and a custom drawer, now being almost done …


Finally arrived !

I just got it few days ago, a superb brand new Agilent 2002A Digital Storage Oscilloscope. Needless to say that I am absolutely thrilled by this 2G/s 70Mhz baby. It is a perfect addition for my electronics projects. Now I am playing with it, much to discover in the documentation. It comes with a CD …


Keyboard shortcuts in XCode 4

First things first. Let’s present the navigator shortcuts. The Workspace Window has the following for areas: Opened with all areas active: Pressing cmd + 0 hides Project Navigator (left area): Pressing opt + cmd + 0 hides Utilities Area (right area): Pressing shift + cmd + Y hides Debug Area (bottom area). Always useful to …


How to convert a mutable array to an immutable array

Really, how do you do this quickly ? Find here.


How to convert an immutable array to a mutable array

Part II of the mutable transformation „saga”. Find here how to quickly convert from immutable to mutable arrays.


How to create Arduino brush for Syntax Highlighter

For my Arduino lessons I needed to add WordPress support for Arduino syntax highlighting. A custom brush for SyntaxHighlighter plugin that would format and color my Arduino syntax similar to the application (see here an example). This is what I did.