ozon

"Hurr durr have you seen the recent news, #signal has been hacked"

Me: No, some politician was careless and fell victim to a simple phishing attempt and shared the login credentials. Signal is still safe.

"No that can't be true, they are politicians!"

This literally happened, twice.

1000€ worth of magic smoke.
Poor LEM Ultrastab :(
18V Zener on the -15V rail went up in flames, my guess someone swapped GND and -15V.

Fun with #Linux part 0xEF:
If you forget your emtpy µSD to SD card adapter in the SD card reader, sh!t will hit the fan.

=> BIOS will take forever to timeout to check for boot media
=> lvm2-monitor.service will take 13 minutes to time out
=> if you think it's a broken update because you are impatient and try to chroot from bootable usb: lvm2-monitor.service will wait forever

Just because two 0B disks are reported to your system.

(╯°□°)╯︵ ┻━┻

@PatrickHerd @gigabecquerel As far as I understand, it's "just" a matter of spraying on charge on the cold end, and then collecting the charge on the hot end? Thereby more charge per same belt speed equals more current? What are the design constraints for the top roller? Metal/plastic, floating or connected to the HV terminal? Just found out that my local home improvement store sells pvc tablecloth, it's literally screaming "turn me into a VDG belt"

@gigabecquerel https://www.youtube.com/watch?v=qPVoJijzhVY Here is a video of (the same?) VDG accelerator starting up, the sound of the motor/belt and the glow of the RF ion source is mesmerizing

did you know that the #DWD has public access to all the #Wetter data?
https://opendata.dwd.de/climate_environment/CDC/observations_germany/

I was able to pull a dataset from my local weather station and generate a simple 3d plot wit #pandas #numpy and #matplotlib to show the number of days in a year for a given temperature bin.
This is really helpful to find the sweet spot for a new #warmepumpe installation

Currently working on a #canbus to #HomeAssistant gateway with #esphome that supports DBC files.
Problem: ESP32 needs a physical connection to said CAN bus.

Sane solution: physically move ESP32 contraption to the CAN bus.

ADHD brainfart:
Set up Raspberry Pi with MCP2515 and immutable Alpine Linux that runs off RAMFS. Cross-compile Cannelloni for aarch64. Tunnel CAN bus to local machine's USB-CAN adapter. While we are at it, include serial2net.

Yes, it works. Yes, I drank too much Club Mate.

Fun with #Linux
Chasing a weird socketcand problem with savvycan for an entire afternoon just to find out it's a missing firewall entry and a savvycan quirk. You can't connect manually via TCP, it *requires* the UDP broadcast to get the connection string.

That's the nice thing about being distracted by a side-project: building your own tools.
In this case a RFC2217 compliant wifi to uart bridge including DTR/RTS for ESP programming, with galvanic isolation.
You can pass the "--port rfc2217://IP:PORT" argument to esptool and it simply works
Now I can flash and monitor from my android phones linux VM.

Playing around with a simple avalanche based pulse generator. Now thats what I call fast rise time. 500MHz TDS744A scope, 1.8A peak current

Always remember to print a date code on your PCBs so that you are always reminded that your personal project time management sucks :)

Just finished some USB-C powered #darkroom far-red led lights

@OH3CUF@mastodon.radio So far I was not able to find the meshcore android app sources? And open source project + selling software license in the "official meshcore store" ?!

@phil_stevens@mastodon.nz @OH3CUF@mastodon.radio Imho meshtastic is a really polished "apple" like user experience. There is a lot of hardware support and it just works. Also really polished UI. I've been looking into reticulum, and from a technical perspective it's vastly superior to MT. But the lack of support, hardware and software wise, is pretty much a dealbreaker for joe average. Is there another alternative you can recommend?