Category Archives: Software

Raspberry Pi tricks for exhibitions – glitches

So, there are some glitches to make omxplayer loop with a script on a Raspberry Pi. When the script loops a very short file, it starts to crash quite quickly. I want to reproduce these errors and look for a solution later. One potential solution was to make the files being played bigger. So I […]

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Raspberry Pi tricks for exhibitions

I wanted to use Raspberry Pi’s to show a few .mp4 films, especially on old televisions & analog screens Here’s a list of tips and tricks: – Default (a reminder): login = pi, password = raspberry – sudo just works – no password –> you need it to halt & to reboot (and lots more, […]

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DD killed my partition table – Raspberry Pi woe’s

This post is a small mental note – a solution for a problem. For the third time I have killed an sd card by using the command dd. (they say something about donkeys – ezels in Dutch) You use dd to copy – but it can destroy without mercy. I followed the instructions on how […]

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Software & Open Hardware – reprogramming MakeyMakey on Linux

Often in Open Hardware projects you have a direct link with software. Depending on the project, the connected software is more or less multiplatform. The more “public friendly’ your open hardware project, apparently the harder it becomes to get support for Linux. Or your project is so specific, it runs only on particular systems, under […]

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RGB Colour LCD Screen

How to make a narrative on an LCD screen: -> the colours have to change -> you have two times 16 characters -> every time you print a text on the screen, it has to be reset to it’s initial position Here’s a video of the first narrative I made for the “Big Fat Failed […]

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A paper, vinyl and fabric cutter

A new machine has arrived in Variable: a paper, vinyl and fabric cutter. The budget was limited, so we had to look in depth for machines that were not too expensive and that worked with Linux. The ideal scenario was to find a second hand (semi-)professional machine. Alas, none were available for our budget. A […]

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On Multiplexers – or input hunger

For a project in December, where if all goes well I will have 45 hand-made sewn buttons to trigger 45 sounds. As I want to trigger real buttons from the physical realm, it is clearly microcontroller time. I will use an Arduino on the physical computing side of the set-up. An Arduino has a limited […]

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Ebooks with Open Source Licenses

I got an e-mail today from my favourite graphic artist on eBooks with free licenses about programming. Here goes: Best and Free Programming Ebooks with Open Source Licenses

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On how to work on someone else’s file

For the CanvasCollectie exhibition I asked Ludivine Loiseau from OSP to design the adjoining texts. I also asked her to try and capture the way your code looks in a simple code editor (it colour codes certain commands). I sent her this screenshot (click to enlarge): To get the code in these colours she had […]

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Nice little tutorial on how to work with analog sensors in arduino

I was preparing for Dorkbot@iMal and one of the possible topics was going to be how to visualize some home made analog sensors, made with textile. This is a clear roundup on the topic: http://protolab.pbworks.com/TutorialSensors#Workingwithanaloginput

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