Geeky Advent

It’s Advent season. And what do you do to let your geek shine? An LED Advent wreath of course.

A retro twitter wall (twypper)

A couple of weeks ago Jan came to me and asked me if I could build a special kind of … More

Niklas did an amazing job, letting fireflies play some tunes. It’s almost as if they are alive. Niklas, I owe … More

For my latest projects I used a lot of single cell lipo batteries. They are really nice. High power density, … More

Again a Braitenberg vehicle. This one is even smaller, than the previous one and comes on a custom PCB. It … More

Here is my very first article. It is published in c’t, one of the best known computer magazines in Germany. … More