Ist Dein Windows-Computer langsamer geworden?
My laptop very recently got much slower than usual. The harddisk LED was permanently on and it too ages for it to hibernate. I cleaned some garbage from the harddisk…
Beinahe unentschieden, dann aber doch noch gerade gewonnen - aber was will mein Gegner im Chat?
Gestern beim Quizduell
Timing of the internal analog-to-digital converter of an ATmega328P with a 5 V supply voltage.
ATmega328P - mißt seine eigene Versorgungsspannung III
[latexpage] After the first two parts of this series ATmega328P – measuring its own supply voltage ATmega328P – measuring its own supply voltage II where I investigated the possibility of…
A simple yet versatile testcircuit for the analod-to-digital converter.
ATmega328P - mißt seine eigene Versorgungsspannung II
[latexpage] Here is a brief follow up from yesterday's post on the internal reference voltage VBG of the ATmega328P. I wrote a small test program where I wait for a…
A sketch of the test circuit on a breadboard.
ATmega328P - mißt seine eigene Versorgungsspannung
[latexpage] The trick is not new, it is utilized in the AVR transistor tester which you can buy for quite cheap money from China, and it has been discussed in…
Bitmapped math in XeLaTeX output.
XeTeX und Deine Formeln sind pixelig?
I have now been using XeLaTex exclusively for quite a while for all my LaTeX work, which essentially means for everything: lecture notes, lecture slides, lab instructions, letters, reports,... For…
MS Outlook Web App - a survival mechanism for Outlook/Exchange refuseniks.
Schöne Neue Welt
Today my employer, Uppsala University, will migrate our email system from an open-source and Unix based one to Exchange Server. At the same time we are all encouraged to migrate…
My very own AVR ISP adapter on a breadboard.
AVR ISP-Adapter für Steckplatinen
Breadboards are great! I mean the solderless breadboard type which you can get everywhere now for almost no money. I use them all the time to prototype electronics circuits and…
Einen RAID-1 Ubuntu-Server aufrüsten
It's almost 4 years now since I installed my server and I decided it was time for some new (bigger) harddisks. I wrote about my server earlier in my blog,…