I smell like bananas.

I have a water radiator on my top floor mounted in a small niche, so small that there is only about 1cm of space between the air-valve and the wall. The problem has been that I since I moved here 10 years ago have been looking for something that would fit so I could air out the radiator. But it seems like the closest I found was some image of one. [...]

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. [...]

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 [...]

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 [...]

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 [...]

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 [...]

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. [...]

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. [...]

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 [...]

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 [...]

Elementnyckel

Alertsquarer v1.1

Buttons and LEDs

Vindriktning online

Ursa inspired keyboard Mk III

AlertSquarer for DH

Ursa inspired keyboard mk II

Raspberry PI case with a fan

Per client/host ssh-keys

An IRC-bot called Landlady