The Wiert Corner – irregular stream of stuff

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

  • My badges

    Mastodon

  • Twitter Updates

  • My Flickr Stream

    20140508-Delphi-2007--Project-Options--Cannot-Edit-Application-Title-HelpFile-Icon-Theming20140430-Fiddler-Filter-Actions-Button-Run-Filterset-now20140424-VMware-Fusion-6.0.3.-no-reclaimable
    More Photos

  • Pages

  • All categories

  • Email Subscription

    Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 717 other subscribers

Archive for the ‘Electronics Development’ Category

« Previous Entries

Low Power current measuring with Nordic Power Profiler Kit 2 – YouTube

Posted by jpluimers on 2026/09/30

PPK2 Top ViewInteresting: [Wayback/Archive] Low Power current measuring with Nordic Power Profiler Kit 2 – YouTube

It’s a review of [Wayback/Archive] Power Profiler Kit II – Get started – nordicsemi.com.

The Power Profiler Kit II (PPK2) is a standalone unit, which can measure and optionally supply currents all the way from sub-uA and as high as 1A on all Nordic DKs, in addition to external hardware.

Via:

–jeroen

Read the rest of this entry »

Posted in Development, Electronics Development, Hardware, Hardware Development, Power User | Leave a Comment »

Great implicit breadboard tip by PH1X on Twitter

Posted by jpluimers on 2026/08/11

There was a great embedded breadboard tip in this tweet:

[Wayback/Archive] PH1X on Twitter: “Working on a Quad 43 pre-amp that has problems with the source selection. Don’t have al logic IC’s in stock to replace them so instead I made a little test circuit. This CD4001 works as it’s supposed to do so I have to dig a little further.”

Do you see it in the picture he posted?

Read the rest of this entry »

Posted in Development, Electronics Development, Hardware Development | Leave a Comment »

Bowden’s Hobby Circuits has disappeared from the web in 2023

Posted by jpluimers on 2026/03/12

There used to be this great site, but it disappeared in 2023: [Wayback/Archive] Bowden’s Hobby Circuits

To ensure the table of contents stays somewhat indexed, I quote it below in full (all links are to the Wayback Machine; I have not checked them yet).

Found back via:

Read the rest of this entry »

Posted in Development, Electronics Development, Hardware Development | Leave a Comment »

Bundling DuPont connectors: 3D Printing Everyday for 365 Days 282/365 #stem #3dprinting #3dprint #ideas – YouTube

Posted by jpluimers on 2026/01/15

Nice idea: [Wayback/Archive] 3D Printing Everyday for 365 Days 282/365 #stem #3dprinting #3dprint #ideas – YouTube

It mentions DuPont wire connectors which is colloquial for a common form of jump wires: the ones that can connect to breadboards, or male or female pin headers. Basically a so called “DuPont wire” is an electric wire with a pin header (either male or female) on each end leading to 3 kinds (not counting ones having multiple connectors on each wire) as male – female is the same as male – female:

  • female – female
  • female – male
  • male – male

Being able to group the connector end of multiple jump wires in one enclosing connector for quick opening and closing is a great idea.

Hopefully the 3D printing files will be released somewhere.

One of the comments is also inspiration for a future 3D printing project:

Read the rest of this entry »

Posted in Development, Electronics Development, Hardware Development | Tagged: , , , | Leave a Comment »

Triink – low power BLE E-Paper Clock | Hackaday.io

Posted by jpluimers on 2026/01/08

Cool: [Wayback/Archive] Triink – low power BLE E-Paper Clock | Hackaday.io

Video: [Wayback/Archive] Triink Assembly – Hackaday.io Project – YouTube

Via: [Wayback/Archive] atc1441 on Twitter: “Released my project for the @hackaday 2023 Low Power Challenge 2023 to @hackadayio The Triink BLE E-Paper Clock”

–jeroen

Read the rest of this entry »

Posted in Arduino, Development, Electronics Development, Hardware Development | Leave a Comment »

Weerstand van koperdraad – Koperdraad: Gegevens – Wikipedia

Posted by jpluimers on 2025/12/02

Voor warmteontwikkeling in koperkabel was ik benieuwd wat de weerstand voor diverse diameters was.

Gelukkig heeft de Nederlandse pagina Koperdraad: Gegevens – Wikipedia deze tabel (let op weerstand is per 100m!)¹

Read the rest of this entry »

Posted in Development, DIY, ElectricPower, Electronics Development, Hardware Development, LifeHacker, Power User | Leave a Comment »

Conductor, Semiconductor and Superconductor with a twist

Posted by jpluimers on 2025/08/11

I tried finding older versions of [Wayback/Archive] 160767437_1614740178716498_1088211482313253900_n.jpg (667×960) from Facebook: Crappy Electrical jokes and Puns. 1,666 likes · 9 talking about this. Just for fun (20210315), especially as the web-site of the ultimate source seems to have died: [Wayback/Archive] Kill The Neighbours, the game that doesn’t hurt – free online puzzle game

Read the rest of this entry »

Posted in Development, Electronics Development, Fun, Power User | Tagged: , , | Leave a Comment »

Dennard scaling – Wikipedia: finally learned why since 20 years, maximum CPU frequency stagnated at about 4 Ghz

Posted by jpluimers on 2025/07/29

Dennard scaling – Wikipedia

Since around 2005–2007 Dennard scaling appears to have broken down. As of 2016, transistor counts in integrated circuits are still growing, but the resulting improvements in performance are more gradual than the speed-ups resulting from significant frequency increases.[1][10] The primary reason cited for the breakdown is that at small sizes, current leakage poses greater challenges and also causes the chip to heat up, which creates a threat of thermal runaway and therefore further increases energy costs.[1][10] Since 2005, the clock frequency has stagnated at 4 GHz, and the power consumption per CPU at 100 W TDP.

Via [Wayback/Archive] What Happened to the Capacitors in 2002? – YouTube

--jeroen

Posted in Development, Electronics Development, Hardware, Hardware Development, Power User | Leave a Comment »

NEN 5152 – Wikipedia: “Technische tekeningen – Elektrotechnische symbolen”

Posted by jpluimers on 2025/06/24

Apart from the 1973 and 1977 editions mentioned in NEN 5152 – Wikipedia it also links to a 2016 edition. After a little digging, it has at least had new editions in these  years:

Read the rest of this entry »

Posted in Development, Electronics Development | Leave a Comment »

Electronic Basics by GreatScott! – YouTube

Posted by jpluimers on 2025/05/22

[Wayback/Archive] Electronic Basics by GreatScott! – YouTube

At the time of writing these were some 60 videos each 5-15 minutes long in reversed order (#1 at the bottom, #61 at the top).

This means it is about 10 hours of watching time well worth it.

--jeroen

Posted in Development, Electronics Development, Hardware Development | Tagged: | Leave a Comment »

« Previous Entries