Categories
linux

A few Raspberry Pi tricks when using it in a digital signage or exhibition installation

Having worked with and used Raspberry Pi for a few different use cases, I have learned a few smart configurations to make them extra useful as digital signage installations or backstage computers in professional exhibitions at work. Here are three such use cases. Make the Pi automatically open a webpage in kiosk mode after booting […]

Categories
linux

Make a backup of a raspberry pi installation remotely using ssh and dd

At work we have a learning and experience centre that have a few exhibitions on display. Some of these are set up using raspberry pi microcomputers. They are actuelly very handy for that purpose, exspecially if you use the two-cell micro sd cards instead of the regular ones. The advantage is that they can run […]

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linux

Move a raspberry pi installation to a bigger micro sd card

Have you ended up with a too small sd card on your raspberry pi? I did. I wish I had used a 32GB instead of a 8GB card. I’ve only got 500MB left, which reminds me that this was the total har drive capacity I had on my 80386 computer when I was 14 years […]

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matematikk

Visualizing 100k decimals of Pi, Tau and e with Python

Having an interest for numbers, Linux and small scale programming and scripting shortens the route to test out things like this. It generally starts out with: “I wonder what that would look like” and ends in a continuous awe for numbers, programming and Linux. Having seen similar attempts to visualize numbers and an earlier attempt […]

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linux

Type the Vulcan salute anywhere in Linux

Type the Vulcan salute (made famous by Spock) anywhere in Linux like this: ctrl + shift + u followed by 1f596 + spacebar 🖖 (or any unicode symbol) 🚀 1f680 is cool too 😉 For those in Microsoft Windows, there is hope. Only some programs like outlook and word are supported, but not browsers. I […]

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matematikk

Create plasma-fractal wallpapers for your phone with ImageMagick

Do you like fractals? Do you like plasma? Perhaps both? Or do you simply like to fiddle with linux terminal commands? I know what I like, therefore I give you a one liner to create five awesome wallpapers for your phone: Download the samples here, but if you create them yourself, they will be your […]

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talesyntese

How to create those evil hacker virus voices from the 90s

Remember those old hacker films from the 80-90s? I do. There is especially one that comes to mind and that is “Hackers” from 1995. Jonny Lee Miller from the ongoing Netflix hit Elementary is of the two lead characters. The other one is Angelina Jolie. If you haven’t seen it, you can here.  In this […]