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Notes from Knut

This is my notebook for everything (Almost)
also: www.bareknut.no

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Spectacular clouds over Oslo today

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august 03, 2013

Panorama of ominous rain clouds over Oslo, Norway 3. August 2013 (Photo by Knut Karlsen) A few minutes later and we are expecting the alien mother ship to break through. (Photo by Knut Karlsen)

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Location: Oslo, Norway

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Connection Proxy on Windows 7 x64

februar 18, 2010

This is how I got the Connection Proxy from the Sony Ericsson Java ME SDK to work on Windows 7 64-bit version: Install your phones PC Suite to get all phone networking drivers Get & Install 32-bit JDK Get & Install semc_java_me_cldc_sdk.2-5-0-5.exe (Place it in default location C:\) Get the eclipse SDK for win 64 as we need one file from this zip. Get RXTX library as we need additional files from this zip. Find "org.eclipse.swt.win32.win32.x86_64_3.5.1.v3555a.jar" in eclipse SDK & place it in the folder "C:\SonyEricsson\JavaME_SDK_CLDC\OnDeviceDebug\lib\devexp\plugins" Edit "connectionproxy.cmd" so that "org.eclipse.swt.win32.win32.x86_3.4.0.v3448f.jar" becomes "org.eclipse.swt.win32.win32.x86_64_3.5.1.v3555a.jar". Find "RXTXcomm.jar" in the rxtx package & place it in the "C:\SonyEricsson\JavaME_SDK_CLDC\OnDeviceDebug\bin" folder Place "rxtxSerial.dll" in the "C:\SonyEricsson\Java

My familiar strangers this morning

februar 25, 2010

I have been experimenting with data logging on Pachube and the concept of the "familiar stranger" (people you coincidentally create social networks with due to same habits or routines). I believe there is a big potential for interesting analytical use of the data. This morning I logged my surroundings going from home to work. The thumbnails show two graphs, one for new strangers (top) and one for familiar strangers (bottom). In this case "familiar" is concidered to be people that have been around for more than one minute. Overlaying the two graphs I'll try to explain what caused the fluctuations in the data. Vertical lines are five minutes apart, blue is for strangers and red is for familiar strangers. Leaving kindergarden and walking towards subway stop. I was alone. Approaching the station, buying a coffee at the subway station and a seven minute wait at station. People come and go and on the platform, but there are a few people waiting with me. En

The SunCat Batteries - DIY prototypes

februar 16, 2009

Rechargeable Batteries with Solar Cells Project by Knut Karlsen At home i always have some batteries lying around, either rechargeable or normal ones. Usually they are empty, but i'd like them to be always fully charged. I could use a normal charger and there is a lot of solar devices that charge rechargeable batteries. I wanted it simpler; why hasn't anyone made a battery with integrated solar cells? The idea of the "SunCat" batteries where born. The batteries should just bask in the sun like a cat and left for a while, in a sunny window, they would slowly recharge. Prototypes During my research for my diploma i was in touch with scientists at IFE that experimented with the production of flexible solar cells. They where kind enough to send me some samples in the right dimensions that i could use for the prototypes (full set at flickr ): I had some older NiMH rechargeable batteries that i glued the flexible Photo Voltaic (PV) cells onto. The PV cells are rated at

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