Tag: linux

MEMEX @ Das Netz

Interactive exhibit at “Das Netz” in the “Deutsches Technikmuseum Berlin” – cooperation with Felix Scharstein The MEMEX is a historical vision of an american scientist, published in 1945, but never realized. It is a „device for individual use, which is a sort of mechanized private file and library“ based on microfilm technology. The most important idea is the creation of…


Reading Arexx TL-500 with Python on Linux – Part II

My first script was changed a little bit to get nicer output. It can now log the raw data received from the Arexx unit (in hexadecimal form) and uses separate log files for the sensors. Sensor numbers can be mapped to other names using a dictionary. I use two TL-3TSN, one TSN-50E (long range) and…


Using KDE’s kwallet with Firefox/Iceweasel

Konqueror is a good browser, but sometimes you need to use Firefox (called Iceweasel on Debian). I discovered a plugin to let FF store its passwords in kwallet, but after installation of the plugin all passwords were gone. Fortunately you can disable the plugin and the old passwords are still there. So if you want…


Reading data from the Arexx TL-500 on Linux

Some days ago I was looking for a temperature monitoring solution for some rooms and 19″-racks at the university. The Arexx TL-500 looked promising and I bought it. Unfortunately there are only Windows drivers available. But some people already analyzed the communication protocol and hacked a simple version of a linux driver: http://www.algorithm-forge.com/techblog/2010/01/linux-usb-driver-for-the-arexx-tl-500-part-ii/ There’s even…