How to use the Webauthn API on a webpage to implement 2FA using YubiKey or TPM
19 mins
A dive into programming using the WebAuthn API in JavaScript and the requirements on the server side to perform 2FA using HSM's like the YubiKey, platform embedded TPMs or similar solutions supported by webauthn.
3D printing NACA airfoil profiles
4 mins
Mini Blog-Post that describes modeling 4 digit NACA airfoil profiles in OpenJSCAD
Why pure JavaScript web apps are neither the future nor a good idea
27 mins
This is an opinion article on the future of web development. Currently there is a trend about building more and more logic into the client - even for simple tasks. That trend has been there previously and it has been a bad idea back then. This article tried to present a few arguments why I don't think that this is or should be the future of the web.
A method to write object oriented code in ANSI C
11 mins
This blog post summarizes a method that can be used to develop software in the same way one would when using object oriented techniques with C++, Java or similar languages. It's based on the method used by the previously mentioned languages to implemented that stuff on bare metal.
Using an Raspberry-Pi as UMTS/LTE gateway
19 mins
Since a friend required this - a short write up on how to use your Raspberry-Pi (with FreeBSD) with an UMTS/LTE modem to provide internet connectivity to your local network.
Anatomy of a typical Unix-like/Linux daemon
7 mins
A really short introduction of the basic anatomy of a Unix-like or Linux daemon process.
WebRTC Media Streams
8 mins
This blog post is part of a short series about WebRTC. It describes the different media sources available as well as how one can do local loopback of a datastream. Note that data transfer is not described in this blog post, only access to webcam and screen sharing streams and direct pixel manipulation.
Simple JPEG image I/O with libjpeg
11 mins
Short tutorial on how to use libjpeg for simple image I/O (to read and write JPEG files to/from disk or memory and represent them as simple in-memory bitmap for simple CV experiments)
NodeMCU based PIR motion sensor supporting WiFi and MQTT
7 mins
Mini tutorial on how to use the NodeMCU Amica and a cheap PIR sensor module to build a pretty simple motion sensor that supports reporting via MQTT messages.
