Markus

@fl4re.bsky.social

Yooper | PalmPilot Collector | Hack the planet | Occasional Meme Dealer

No hardhat this year I fear. Running into too many problems with the speaker/mic, and I did not realize a hotspot doesn’t work like wifi. Maybe I’ll have a part of the project to show off but I’m doubtful.

I just found the absolute best phone number for Defcon. Easy to remember and two funny numbers :) While it makes sense for someone who hates vxunderground, I didn’t realize they also hated 666 for being such a scary number as well.

Last shift of working in memory care today. Unfortunately also the same time I’m given a sad reminder why so many rooms keep opening up here.

It’s impressive how much someone can completely ignore what you say under the guise of ”we know 30yr old you better than yourself”. I’m not sure at what point In allowed to make life changing decisions if I’m too idiotic at 20 still.

Behold, I finally found a power supply to steal for my soldering iron. Made the DC33 Mini Badge and soldered the headers onto an amp. For being the first time I’ve soldered headers, I’m impressed only two of then look murdered. #defcon #soldering

BildBild

Looking for some help here. I’m trying to use a Max98357a to power a small 8ohm speaker. I’ve verified it has power, and that the speaker output has a difference of ~1.5v from gnd. I think the issue might be the SD pin but I can’t figure it out. Any tips would be great. #esp32 #hardware #circuits

Photo of the Max98357a. The resistance between the SD pin and gnd pin, and SD pin and VIN, both increase over time when being measured with a multimeter.

After 5 centuries of pain and suffering… I finally got TLS working on my Pi and esp32, and can send very basic messages. Now I have 5 open days left before Defcon to finish everything else…

At this rate I might have more of a walking phone hacking challenge than a working phone system. Asterisk has so many settings… (and I haven’t even read the “read me immediately” security txt yet)

I’m very glad there’s so many resources for Asterisk online. Despite that, this attempt at installing it is still driving me insane.

Finally talked to my mom about my consult in two weeks. I would prefer speaking to a large crowd completely unprepared rather than talking to her about this…

Took me six days whole to figure out two of the four wires on a rotary dial are ground. It wasn‘t that the gpio interrupts were!’t working, I was just stupid. At least I get numbers off a rotary dial now.

On one hand, I‘m getting my phone/dial working. On the other, I’m figuring out the calling/actual phone stuff. The nonexistent middle part is figuring out how to connect the two. (It seems very tricky)

I’m hoping to start designing my stickers soon (and maybe even order them a full month before Defcon). If anyone has fun ideas, I’m open to a few more designs. So far I’ve got a hard hat rubber duck concept, and probably some sort of phone one.

Might’ve bricked a wifi pineapple Tetra. (Didn’t realize the update file was not the recovery file…) The recovery steps aren’t working and the orange light is constantly on with the page showing “update in progress”. If anyone knows how to fix it that’d be great.

If anyone knows someone involved with the #PhreakMe contest at #Defcon this year, I have a few questions for them. While I missed the chance last year, it looked like a fun competition, and it’d be neat if I can make my hard hat compatible with their challenge.

No luck with the microphone yet, but the speaker is working. I was surprised at how decent the sound was. I’m not sure if I need to make a real circuit for the microphone or just play with wires a bit more.