First steps with my Nucleo-F401RE

Hi folks,

today I wanna share my first experiences with my new gadget, a STM32 Nucleo-F401RE ( I got mine when I visited Embedded World exhibition in Nürnberg this year, but you can order one online for about 10€, e.g. from

In this post I share how I got started and how to get a first “Hello World” program running.

Nucleo-F401RE with mbed online IDE

Nucleo-F401RE with mbed online IDE

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SWT fix for Java Protocol Analyzer

Hello Folks,

I am currently working on some reverse engineering of wireless protocols of home automation systems, and sooner or later you encounter the point where you need some kind of protocol analyzer to understand what the devices are exchanging in their communication. More infos on that will follow some time later, but now I would like to share a short advice/fix for a tool I found. It is called “Protocol Analyzer” and right, it can be used to understand the signals the devices are exchanging.

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Download Android install files *.apk from

Hello fellows of my blog,

this time I wanna give you a brief description how you can download (free) Android programs (*.apk) files directly to your PC. From there you can install them on your device. You would need that in case your Android device has no internet connection, by what reason ever.

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Teaser: Saving Audio/(Video) from Youtube with Linux

Hello folks,

yesterday evening I felt exhausted from learning for my exam on Monday.  To relax a little I did some investigation on how to download video/audio from youtube and here is a first survey:


For some time I have bing using the tool “free youtube to mp3 converter” to download some audio tracks. This tool is really awesome BUT its major drawback: It is a Windows tool 😦 . Though I have dual boot on my notebook it is a solution but not a good one, cause most of the time I am running Linux Ubuntu.


To save videos from youtube (and similar platforms) I can recommend the Firefox AddOn Downloadhelper. Since it runs very reliable in Linux Firefox too, that is the best way for me here 🙂

So yesterday evening I was looking for a way to save audio only from youtube videos. I am close to a really cool solution which I will probably post here if it is working as smooth as I assume it should 😉

But for now I have to continue my studies for my exam. So stay tuned and come back to learn more about saving audio from youtube using Linux (and its commandline 😉 )


Fachzeitschriften und Prüfungsfragen

Hallo liebe Leser meines Blogs,

dieses mal hat sich die Hausaufgabe in zwei Teile gegliedert:

  • Konzeptionierung einer Prüfungsaufgabe zum Themengebiet 3 – Literaturrecherche
  • Blogeintrag zum Thema Fachzeitschriften

Aus diesem Grund (und wegen den Pfingstfeiertagen 😉 ) war die Bearbeitungszeit auch auf 2 Wochen angesetzt. Heute möchte ich meinen Blogeintrag verfassen und mich mit meinem Umgang von Fachzeitschriften auseinandersetzen. Continue reading

Ein ShellScript um Ordner anzulegen

Ich habe des öfteren die Situtation, das ich in einer Datei zeilenweise Ordnernamen stehen habe welche ich anlegen möchte. Da ein manuelles Anlegen sehr zeitaufwendig und unwirtschaftlich ist, habe ich mir für diesen Zweck ein kleines ShellScript, bzw. BashScript geschrieben.

while read line
	mkdir -p $line;

und für alle die wissen wollen, wie man fancy source code snippets in wordpress einfügen kann, ist hier der Link zur Beschreibung:

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