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Warning message from my UPS: replace the batteries...
Webmin and apcupsd
As I have reported earlier, I decided to run webmin on my new server. I have also reported about my UPS which keeps my server running whenever Vattenf*ll fails to…
Knight Rider is back
Now I am completely sold to AVR microcontrollers. ATMEL's free software seamlessly interfaces to the also free AVR-GCC C compiler and it is really easy to get started with the…
A rose chafer or cetonia aurata
Bugs with six and more legs
Today was the first really sunny day this spring in Uppsala. Reaching 25°C I spent a large part of the day on my balcony where I was visited by a…
New batteries
Today I finally managed to get the four new batteries for my UPS unit. Now everything is green again:
My server – no end yet
I thought this was it - well it wasn't... This weekend I put everything together again: the server and all four harddisks (one system hdd and three data hdds in…
A Tesla Roadster in Uppsala
A visit at the Ångström laboratory?
Yesterday I just wanted to fetch a manual at my office, when I saw a rare visitor at the Ångström laboratory in Uppsala. At first it looked like a normal…
A new server
My old server Last weekend my personal server at home broke down after more than four years of continuous operation. This server used to occupy the big tower case in…
Lights for Energihuset
Today I designed a solar-cell powered LED lighting for a model of the planned energy education centre Energihuset in Uppsala. The model was built by Nyréns Arkitektkontor and equipped with…