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Geocaching

Profile for uwezi

(Deutsch) Ach Ihr schon wieder

Sorry, this entry is only available in German.

Hacking an AVR programmer II

This is a follow-up of my most popular post, Hacking an AVR programmer.

MX USBasp v3.02

Recently there have been quite a few comments about a new version 3.02 layout of the USBasp programmer available from many Chinese ebay sellers, which appears to be incompatible with my previous hack. The problem is still that […]

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Assembling an USBasp

…at eight times timelapse it only takes 4 ½ minutes…

http://www.sciencetronics.com/greenphotons/wp-content/uploads/2016/11/20161102_usbasp_480.webm

LaTeX: x11names resorted

I like the color palette which the xcolor package offers under the option x11names, but I find the list of colors in the xcolor manual a bit confusing. The colors are sorted by names and not shades – so today I made my own little table.

[…]

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(Deutsch) …und die Deutsche Domain – schon wieder…

Sorry, this entry is only available in German.

An USBasp in a new design II

Most of the time I design and debug my AVR projects on solderless breadboards nowadays. And for that I have been using some different types of programmers by now: starting with the good old STK500, to different versions of USBasp clones from Chinese sellers on eBay.

In order to connect the programmers to the […]

Continue reading An USBasp in a new design II

An USBasp in a new design

Just a small teaser: today I received my circuit boards from PCBgogo – a layout which I just had sent to the Chinese manufacturer last Sunday.

The finished circuit board from China.

It is a USBasp, which can be placed on a breadboard and at the same time supplies the power rails […]

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Nerd or not?

Today there was a geocaching event celebrating Nerd Day. I must admit that I wasn’t aware of the significance of today’s date, but I also knew that I can probably be considered being a nerd.

In the early days of the internet, while still writing my master’s thesis in Kiel, I already scored high […]

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(Deutsch) …nicht schon wieder!

Sorry, this entry is only available in German.

Setting up webcam exposure under linux

I had some problems with fswebcam to set the automatic exposure. The exact way how to enter certain parameters is not clear from the lacking documentation, but it works fine if you set parameters through another command line tool.

This is the script behind BirdCam:

#!/bin/bash DATE=$(date +"%Y-%m-%d_%H%M") v4l2-ctl -c exposure_auto=1 v4l2-ctl -c gamma=5 […]

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