Posts

Mechanical Keyboard: derb-planck

derb-planck is a custom mechanical keyboard based on a planck keyboard whit an USB multiplexer. It can connect up to three host devices. In this post I will go over the idea and motivation, design/build phase and all the mistakes I did. Idea The work of an software developer can be differentiated in organisational work and development work. Since I’m an 100% Linux developer and never got accustomed to using virtual machines, I use two laptops: One with the default corporate software stack (MS Office, …) and one for software development.

Building a XSPICE codemodel outside of the Ngspice source code

The Ngspice manual (PDF) describes how to build a XSPICE Codemodel within the source code of Ngspice. In this article I describe how to compile a codemodel only using the installed Ngspice version of your favorite Linux distribution. TL;DR Have a look in the compile script of my XSPICE test setting. In this article I describe what my test setting is doing. Prerequisites To compile a XSPICE codemodel you need a C compiler and Ngspice.

DIY PCB: Vom Design zum fertig bestückten STM32F07-Breakout-Board.

Ich habe meine erste Platine entworfen, produzieren lassen, bestückt und programmiert. Dieser Artikel fasst meine Erfahrungen zusammen. Motivation und Mikrocontroller Ich sitzt viel vor dem Rechner. Um davon etwas weg zu kommen, habe ich gedacht ich beschäftige mich mit der Herstellung von Platinen mit dem Ziel Löten zu lernen. Leider habe ich kein vorgefertigtes Board/Set zum Löten gefunden, welches mir gefällt. Also muss ein eigenes Board entworfen werden. Da es mir um den Herstellungsprozess geht, habe ich keine besonderen Anforderungen an einen Mikrocontroller.

Website with Jekyll

This website is genereted using Jekyll. The Step-By-Step-How-Two is great but I missed some information which I documented here. Preperation Ruby At first install Ruby. On Arch-Linux: sudo pacman -S ruby Jekyll The following command will install Jekyll in your user directory (~/.gem/ruby/). gem install --user-install jekyll bundler You probably want to add the ruby bin folder to your search path by adding following line to your “run commands” file of choice.