Wie DKIM und SPF funktioniert (und weshalb Mail-Forwarding eine schlechte Idee ist)
7 mins
This is an article (in German because of it's specific audience) about SPF and DKIM features that prevent mail spoofing and it's effects on mail forwarding
Building a simple 3D printer (and what turned out to be not so simple)
20 mins
This article describes some of the ideas and thoughts during building my first FDM printer and which lessions have been learned from that project.
How to handle LoRA messages from thethingsnetwork from JavaEE with TTNClientJ2
4 mins
This article is a (really) short tutorial on how one can handle messages from LoRA nodes that are routed via thethingsnetwork inside an self-contained JavaEE application.
Adding tags for indexing webpages with Jekyll
2 mins
An easy method to add tags to your static Jekyll generated pages and blogs
Linear stepper motor control - A summary
5 mins
A short summary of the algorithms required for linear accelerated and decelerated stepper motor control on microcontrolers.
How to setup an TOR hidden service
7 mins
A short description how to setup a TOR hidden service or an stealth hidden service and why one would want to do that even if one doesn't offer illegal content
Getting started with STM32F401RE Nucleo starter board on FreeBSD
4 mins
How to get started with the STM32F401RE nucelo development board on FreeBSD with gcc and openocd
Using Sonoff basic switches with own firmware
10 mins
Example how to flash Sonoff basic switches with custom firmware (using cli tools or the Arduino IDE)
Building a LoRA WAN gateway (and supplying data for the things network)
18 mins
The following article leads the reader through building an LoRA-WAN gateway from an iMST ic880a concentrator board and an RaspberryPi. Optionally is shows the reader how to add GPS, enable remote configuration via the tinc VPN daemon and via a TOR stealth hidden service.
Android development on FreeBSD
2 mins
How to get started with Android development on FreeBSD (using Android Studio)
