The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Interesting; Meshtastic

Posted by jpluimers on 2025/11/27

ImageOn my list of hardware/software to experiment with is [Wayback/Archive] Meshtastic:

An open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices

Via [Wayback/Archive] @jilles_com@infosec.exchange on Twitter: “Will be taking to meshtastic.org Lora 433MHz modules to @hotelhacker. Might be cool if more people could bring some to setup a larger mesh and play with them. amzn.eu/d/aCgULy4“

Products:

For both boards, this holds:

1. The Meshtastic program is not pre-installed on this product. If you need to install, please check the steps:

github.com/geeksville/Meshtastic-Android/blob/master/README.md

github.com/meshtastic/meshtastic-device/releases

2. If GPS does not work, the following situations may occur:

Install the Meshtastic firmware before and now reset the GPS when you switch to another firmware.

Reset steps: github.com/Xinyuan-LilyGO/LilyGo-LoRa-Series/tree/master/firmware/GPS_%20reset_test

3. If GPS is weak indoors, it can be used outdoors

4. The GPS antenna is not installed stably, you can check if the interface is attached to the GPS antenna

Related:

–jeroen

Posted in Development, Hardware, Hardware Development, Hardware Interfacing, IoT Internet of Things, LoRa - Long Range wireless communications network, Network-and-equipment, Power User | Leave a Comment »

EU Code Week on X: “🎨 Creative Corner: ASCII Art Challenge! 🎨 Let’s explore ASCII art! Use your coding skills to create a fun image using text characters. Share your masterpiece in the comments! Check out this guide to get started: Ready, set, create! #CreativeCoding”

Posted by jpluimers on 2025/11/26

This was a nice idea, but apparently not reaching the target audience:

[Wayback/Archive] EU Code Week on X: “🎨 Creative Corner: ASCII Art Challenge! 🎨 Let’s explore ASCII art! Use your coding skills to create a fun image using text characters. Share your masterpiece in the comments! Check out this guide to get started: … Ready, set, create! #CreativeCoding”

It pointed to step 4 in this Raspberry Pi project challenge: [Wayback/Archive] About me: ASCII art – Python challenge

Image via [WaybackSave/Archive] Tweet JSON / [Wayback/Archive] GVfE-_EXAAAv4R6.jpg:orig (1080×1080)

--jeroen

Posted in ASCII art / AsciiArt, Development, Fun, Python, Scripting, Software Development | Tagged: | Leave a Comment »

danmcquillan (@danmcquillan@kolektiva.social) on Twitter: “new blog post: ‘We come to bury ChatGPT, not to praise it'”

Posted by jpluimers on 2025/11/26

Some 3 years after ChatGPT was introduced, I wonder if this still holds for current language and knowledge models:

[Wayback/Archive] We come to bury ChatGPT, not to praise it.

Read the rest of this entry »

Posted in AI and ML; Artificial Intelligence & Machine Learning, ChatGPT, Development, GPT-3, Software Development | Tagged: | Leave a Comment »

When compiler optimisations cause memcpy undefined behaviour: Fix a crash trying to save an empty AudioStream by hpvb · Pull Request #100422 · godotengine/godot · GitHub

Posted by jpluimers on 2025/11/25

The libc C standard library memcpy function is very fast, but because of that also very dumb and with a list of circumstances where its behaviour is undefined (a great opportunity to introduce vulnerabilities in your code). The specs of those are in [Wayback/Archive] memcpy, memcpy_s – cppreference.com, including:

The behavior is undefined if either dest or src is an invalid or null pointer.

With C compilers becoming smarter and smarter, their optimisations can hide the fact that you call memcpy with parameters causing undefined behaviour.

This is a nice example of that: [Wayback/Archive] Fix a crash trying to save an empty AudioStream by hpvb · Pull Request #100422 · godotengine/godot · GitHub

The change is relatively simple, but hardly shows why the change is there. Only one line got changed in [Wayback/Archive] Fix a crash trying to save an empty AudioStream by hpvb · Pull Request #100422 · godotengine/godot · GitHub

Read the rest of this entry »

Posted in C, Development, Software Development | Tagged: , , | Leave a Comment »

Online x86 and x64 Intel Instruction Assembler

Posted by jpluimers on 2025/11/25

[Wayback/Archive] Online x86 and x64 Intel Instruction Assembler

The source starts in these two files:

Read the rest of this entry »

Posted in Assembly Language, Conference Topics, Conferences, Development, Event, Software Development, x64, x86 | Leave a Comment »

What is the best free PDF Editor for Mac?… – Apple Community

Posted by jpluimers on 2025/11/24

Need to check this out:

Query: [Wayback/Archive] pdf editor macos – Google Search

--jeroen

Posted in Apple, Apple Silicon, M1 Mac, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook-Pro, Power User | Leave a Comment »

MacOS: open file in other monitor

Posted by jpluimers on 2025/11/24

When I have an external monitor connected to my 2015 era Retina MacBook Pro machines, I wanted some apps to appear on the laptop screen and others on the external one.

That was harder than I hoped for as no single solution works in all cases.

What I do now is to make sure the icon bar is on the monitor where I want applications to open. Not perfect, but works for most cases.

Here are some links that helped me:

Read the rest of this entry »

Posted in Apple, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Pro, Power User | Leave a Comment »

Strooikaart | Rijkswaterstaat

Posted by jpluimers on 2025/11/22

Voor wanneer de R van Rijkswaterstaat in de maand zit: [Wayback/Archive] Strooikaart | Rijkswaterstaat

Augustus 2025 had de eerste nachtvorst: een maand dan september wat een normale maand is voor die gebeurtenis

Inzoomen op de kaart laat zien:

  • Waar de strooiwagens nu actief zijn
  • Wat de temperaturen van het wegdek zijn

Voorbeeld:

Read the rest of this entry »

Posted in cars, LifeHacker, Power User | Leave a Comment »

Inschrijving tot 1 december: Trilveen Festival 2026 | Muzikaal feest voor de blaasmuziek

Posted by jpluimers on 2025/11/22

Trilveen 2026 is op 9 mei. De inschrijving is bijna gesloten: Trilveen Festival 2026 | Muzikaal feest voor de blaasmuziek

Avondprogramma staat al vast – twee gerenommeerde orkesten die hun complete WMC-programma laten horen:

  • Gelders Fanfare Orkest
  • Fanfare De Eendracht Den Ilp.

In 2025 deden overdag volgens [Archive] Trilveen Festival | KunstGreep Oostzaan | deze orkesten mee:

Read the rest of this entry »

Posted in LifeHacker, Music, Power User | Leave a Comment »

All of Bluesky’s Features and How to Use Them

Posted by jpluimers on 2025/11/21

I wonder what has changed since this November 2024 article: [Wayback/Archive] All of Bluesky’s Features and How to Use Them

Via a response on me asking about moderation lists: [Wayback/Archive] John Kraal: “Deze pagina had wat basic info. Het is wel gewoon vertrouwen delegeren aan een willekeurige ander dus ga er niet blind op :-) …” — Bluesky

--jeroen

Posted in BlueSky, Power User, SocialMedia | Leave a Comment »

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