The Louie

The Louie

The Louie

The Louie

"I create stuff."

During this latest DreamHack event here in Jönköping (DHW23) I did some small updates to the Alertsquarer previously featured here. SG had bought some new hardware so instead of three 32x32 panels there was now two 64x32 panels. So while fixing support for this, and doing some minor adjustments I also added support for loading and displaying PNG-images. Like the DreamHack logo in this image. New Alertsquarer with PNG support You can find the code here: https://github.com/dhtech/alertsquarer [...]

A friend at En Produktions Byrå was assigned to design a section of a Fagerhult exhibit for their permanent showroom located at the headquarters. The display consists of several clusters of buttons, resembling vintage radio buttons where only one can be active at a time in each group. A sophisticated display mounted on an adjacent wall is controlled by the buttons. Modern radio buttons After doing some research, we purchased a number of Adafruit buttons with integrated Neopixel (WS281X) lights, [...]

Quite a while ago I bought an IKEA Vindriktning air quality thingie on sale with the intention to connect it to my Home Assistant setup. It’s a quite simple affair, there is a RS232 TX pin on the Vindriktning board that spews out values, so just connect a ESP32 to that and push the values to MQTT. There's quite a lot of guides online that are easy to find, Fabisoft, Oversubstance, Instructables, Turanis, if you want some inspiration. Instead of writing my own software there are plenty open-source [...]

After my second Ursa inspired keyboard was finished and I wasn't completely satisfied with the bulky look I decided to leave fabric and go back to a material I've worked with a bit more, wood. Also my newest PCBs had arrived a while back and I was eager to use them. I've also gotten some LOTR themed keycaps, more specifically the dwarvish set from Drop. So I started on the third iteration of the original design idea form Andreas Chlupka. Main body So I started with getting some oak planks and [...]

A friend who works at Dreamhack asked me if I had any 24 led Neopixel-rings in my large store of good-to-have stuff. Unfortunately I didn't, I could only find 12 led ones. In the crew area for the tech/network crew at Dreamhack in Jönköping they have had a display that show the number of active alerts per team. So anyone easily could see if any area had problems, or if everything was green. The display consisted of four 24-led Neopixel rings that either was green for no active alerts, or show [...]

After the immeasurable success with the first case and the fact that I have computers both at home and work, and can't be bothered to transport a keyboard back and forth I decided to create one more. Since I had more Lou1:e PCBs and just got a new keycap set it was a natural choice to just continue working on modifying Andreas Chlupkas original design. The final result I did like the look and feel of fabric on the keyboard but wanted it a bit more fluffy, and I wanted to colour match the the case [...]

I have a Raspberry PI in the boot of my car, and it can get quite warm during the summer months, so it needed some cooling. The problem is that it features a PiJuice, to be able to handle the power being cut as soon as the car is turned off. But I couldn't find any cases that had place for both a fan and pijuice, even if i Googled for at least 30s. So I designed and printed a simple case for it with a 5V 4010 fan. The fan is connected to PiJuice and a small python script that uses the temperature [...]

I have a handful servers where I login regularly and started to created separate ssh-keys for each client-server pair instead of the standard practice of just one ssh-key per client. The basic idea If you only have one ssh-key and it get accidentally (or intentionally by your nemesis) it's quite a chore to hunt down all the places where you used that key to change it and check for unauthorized access. Instead we create one ssh-key for each client-server pair. In theory Say you have a client and [...]

How I built a self-organizing distributed network of IRC-bots for a good cause. The bot called Landlady is just the last one in a long line of bots written in Perl, Python and Javascript. Why did you create this IRC-bot? For a couple of years I was given the task to handle the #dreamhack IRC-channel on quakenet. Between events it was quite a quiet place but during the early 2000s it became the largest channel on Quakenet for the days during the event. The number of users in the channel naturally [...]

I've been looking for a CMS to create my new website in. I would like something that i could run locally and just "compile" to static html that could be rsynced to a remote server. My main reasoning behind this is that I can't be bothered to have a Wordpress site that needs attention, constant upgrading and poses a security threat in any way. For the last couple of years I've looked at Jekyll and Hyde and all reasonable alternatives available but non of them was to my liking. It they was all full [...]