Andy

@G33KatWork@infosec.exchange
860 Followers
528 Following
3.2K Posts

I like computering. Doing security research at @rapid7 labs.

This is a professional account. Used to play a lot of CTF with @EatSleepPwnRpt and @StratumAuhuur

LocationGermany
Bloghttps://www.geekatwork.de
Oh yeah! That environment is so fucking protected... #gpn

"Das Trump Mobile T1 SM soll nicht nur mit einem 120 Hz AMOLED-Display und einer 50 MP Kamera aufwarten, ..."

FÜNFZIG MEGAPIXELS? Böööö!

I've been vibe-coding my staircase illumination protocol code, bootloader on the AVRs and a service client to talk to it. At some point Claude started adding a shitton of emojis and I just stuck with it.

I now have a fully working loader, I can tell the application to reset into loader mode, I can address individual lamps, it took me a while and I needed to fix a bunch of bugs, but everything works now.

I'd estimate this was 2-3 times faster than doing it without any help from AI.

Next I need to implement an animation player that can load LED animations from flash and cycle through them with interpolation between "key frames" using a central clock packet that the master will send out. Then I can preload animations and play them back later.

Then more work on my KNX device stack to fully integrate them into the house and make the motion sensors on the walls control them depending on the time of day and current brightness in the staircase.

How I debug things...
Two pictures from the soldering process. I used a stencil and one of these blue Chinese hot plates for the first time. Worked first try - except for the debug LED and the SK6812 LEDs all initially placed with the wrong polarity. Oops.

Built the first of my staircase illumination boards. It's not super bright, but good enough for ambient lighting especially as I am going to have eight of them per story.
Today I vibe-coded a bit of Rust to make the blue board on the side control the color on the white lamp board. Things are working!

Yellow scope trace shows AC coupled VCC with the ASK/OOK modulated serial port data on top. The blue trace is the recovered serial port data using two peak detectors and a comparator.

Now this stuff just needs to work with longer cables in between and more lamps. And I need a proper protocol for bootloaders, animation storage and playback etc.

The memes are on point again
Einfach ne C-130J Hercules in 2000ft und vier F35 (glaub ich) über Aachen. Ballert.

Fuck nano! I am now enjoying software from the market leader.

https://github.com/microsoft/edit

> Today is a holiday
> Labor day
> Nobody works today