Raspberry pi – more fun

In my last blog entry, I described how I mounted and changed files in a raspberry pi image and saved it again – all on my laptop. The real problems arose, when I wanted to actually run binaries and install programs. I have solved that now, and in this blog post I will describe how.

Raspberry pi – image fun

It is pi day 3/14, so I have been looking more at raspberry pis. This blog post is about working with images and gitlab.

Python and ods files

Using python to extract stuff from Libreoffice calc (.ods files) is something  that has been on my todo list for a long time. And today I found the time to do it. As expected, it turned out to be very simple

Lasercutting – part 2

I am continuing working with the laser cutter at school. It is part 2, since part 1 was a video on youtube. Currently I am doing boxes for $KID1.

UEFI, grub and failed updates

I did an apt-get dist-upgrade on my Debian box, and grub failed. It took the better part of an afternoon to get the machine booting from the hard disk. This post is about how I made it work again.

Nagios and debugging notifications

I have been working on my nagios ansible role for some time now, and notifications have been an issue all along, so I decided to put some notes here.

Hackathon October

We had a weekend-long hackathon, and, as always, it was very nice to set off some time doing technical things.

Sound and volume

Having been to a festival recently and using my ear plugs, I started thinking about volume and how it affect the ears.

Gamejam scratch!

We had a gamejam session this weekend. I decided to make a game using scratch.

Compressing time series

The other day it struck me as odd that I didn’t know of a data format for time series. We collect a lot of time stamped data and most of the time it just get dumped in a .csv file, whenever we want to share it. What do the pros do?