K'NEK-TEK

A webpage to document and share my open-source software/hardware projects.

Clever spammers

I was looking through the spam folder in my inbox (it’s always good for a laugh) and noticed that some clever spammer had figured out how to break the tables inside of Gmail’s sender information card:     Normally the sender’s information card that pops up if you hover over it looks like this: The Continue Reading

Benchmarking the Beaglebone Black

Two years ago I took a great seminar (graduate class) by Prof. Ayse Coskun (her last name is pronounced “Josh-Kun”) that covered heterogeneous computer architectures, including things like server design incorporating different types of processors and single-die CPUs with multiple architectures on one chip. The Beaglebone Black is a much more exotic CPU than most Continue Reading

Transfer function analysis with Octave/Matlab

I’ve made a short Octave script (Octave is the open source version of Matlab) which helps a person analyze transfer equations, of the form

The control toolbox in Octave is great and offers lots of nice ways to plot a transfer function, including highlighting the poles and zeros in an x-y plane to help Continue Reading