Author Archives: admin

Dexter, the TableBot

By | November 14, 2014

I’m trying to attend the monthly meetings of the HomeBrew Robotics Club since around this summer. They are quite fun when you’re interested in hobby robotics and can make it to the San Francisco Bay Area 😉 During one of my first meetings I learned about the tablebot challenge. That sounded like an interesting task… Read More »

Some Halloween Impressions

By | October 31, 2014

Halloween is always a time for me to try different things. So I tried to take some photos and videos of this years displays. Unfortunately, it rained pretty much the whole time, so I had to water-proof the things and did not want to go back in there to fix things:-( But it looked that… Read More »

Yubikey and Linux Auto-ScreenLock

By | October 28, 2014

OK, I got a set of YubiKey‘s some time ago and I use one to supplement my Linux desktop login. But I wanted to lock my screen automatically when I remove my YubiKey-Nano. So I wrote a little Python daemon which is auto-started on login and watches for USB remove events. Once the USB-subsystem reports… Read More »

MaKey MaKey & a DIY Version

By | June 18, 2014

OK, so we saw and played a bit with the MaKey MaKey at the Bay Area Maker Faire and it’s a fun little piece to play with. I have a fifth-grade teacher in the family, so the plan is to enrich the class room a bit;-)   I always want to look a bit behind… Read More »

OpenSprinker Pi – Hardware Complete

By | April 30, 2014

I was thinking about a more flexible sprinkler controller for a very long time. We have circuits which would benefit from different patterns, from the normal lawn watering to drip circuits for some flower/veggie beds to some pots and even some soaker-hoses for trees. When I saw Daniel’s setup @ Garden Automation, I knew that… Read More »