The Wiert Corner – irregular stream of stuff

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

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Archive for January, 2023

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OV-chipkaart – OV-reishistorie anonieme kaart

Posted by jpluimers on 2023/01/05

Interesting: this did not work about 5 years ago, but does since at least 2019: [WayBack] OV-chipkaart – OV-reishistorie anonieme kaart.

It allows you to see which trips you made on your anonymous Dutch public-traffic card (OV-chipkaart).

You can also see the stations, but then you need to have an account which makes you give up at least part of anonymity.

Via:

–jeroen

Read the rest of this entry »

Posted in LifeHacker, Power User | Leave a Comment »

2021 Hackaday Remoticon – links to conference, playbacks and some slide decks

Posted by jpluimers on 2023/01/04

Another remote conference I missed while recovering from rectum cancer treatment, but luckily the playbacks are on YouTube and some slide decks are at Google Drive.

Via: [Archive] Uri Shaked on Twitter: “My talk on @hackaday Remoticon starting now Reverse Engineering the ESP32 WiFi Live stream: … “ / [Archive] Jeroen Wiert Pluimers on Twitter: “Dang. I copied that one out of the description. All the timestamps there are corrupted as YouTube measures them in minutes:seconds but @hackaday posted them as hours:minutes (which are off by minutes anyway) starting at 01:56:30. This is the correct one: … “

Links:

  • Web site at [Wayback/Archive] 2021 Hackaday Remoticon
  • Videos at [Wayback/Archive] HACKADAY – YouTube:
    • Day 1: [Wayback/Archive] 2021 Hackaday Remoticon: Friday – YouTube

      Approximate hour:minute time stamps as published for Friday

      They are usually at least minutes off; substract 11:00 to get the rough hour:minute index into the video, then scroll from there.

      • 11:00 Opening Remarks
      • 11:10 Keynote – Elecia White: Map Files and Other Buried Treasures
      • 12:10 Maurits Fennis: Hack for the Planet: Reverse Engineering Embedded Systems to Reduce E-Waste
      • 13:00 Matt Venn: Open Source ASICs – A Year in Perspective
      • 13:35 Hal Rodriguez and Sahrye Cohen: Conductive Melody: a Tech Couture Instrument
      • 14:10 Jay Bowles: A Dip Into The Plasmaverse
      • 15:00 Voja Antonic: Become a Hardware Expert in 40 Minutes
      • 15:50 Sergiy Nesterenko: Don’t Flip My Bits: Electronics in Spaaaace
      • 16:25 Jeroen Domburg: Rickrolling Buddha: A Deep Dive in Reverse Engineering and Thoroughly Pwning an Unknown Chip
      • 17:15 Lewin Day: Hacker Trivia (Stream will automatically redirect to this one: [Wayback/Archive] youtu.be/uRpUdQi31tg )
      • 18:00 Bring-a-Hack on Gather Town platform (details on joining sent to ticket holders and on the Discord server)
    • Day 2: [Wayback/Archive] 2021 Hackaday Remoticon: Saturday – YouTube

      Approximate hour:minute time stamps as published for Saturday

      They are usually at least minutes off; substract 10:00 to get the rough hour:minute index into the video, then scroll from there.

      • 10:00 Opening Remarks
      • 10:10 Keynote – Keith Thorne: LIGO: The Most Sensitive Instrument Humans Ever Created Will Unfold the Mysteries of Gravitational Waves
      • 11:10 Arsenijs Picugins: Laptop-Be-Done
      • 12:00 Uri Shaked: Reverse Engineering the ESP32 WiFi
      • 12:35 Hash Salehi: Smart Meter Hacking
      • 13:10 Jay Doscher: Getting Started With and Outgrowing Tinkercad
      • 14:00 Joey Castillo: Teaching An Old LCD New Tricks
      • 14:35 Colin O’Flynn: Upskilling your Hardware Security Work
      • 15:10 Rob Weinstein: Patently Obvious – Reverse Engineering a 45 Year Old Patent into a Fully-Functional HP-35 Replica
      • 16:00 Debra Ansell: Form is Function: Modular PCB Building Blocks
      • 16:35 Vaibhav Chhabra: M19 Initiative – A Case of Open Innovation & Distributed Manufacturing at Scale
      • 17:25 Keynote – Jeremy Fielding: Building Hardware that Moves: the Fundamentals that Everyone Should Know
      • 18:25 Hackaday Prize Ceremony
      • 19:25 Closing Remarks
      • 19:35 DJ Jackalope: Live Set (listen/watch on Twitch, chat with everyone on discord)

–jeroen

Posted in Conferences, Development, ESP32, Event, Hardware Development, Remoticon, Software Development | Leave a Comment »

Some QR code generators on github.io

Posted by jpluimers on 2023/01/03

QR codes often are the quickest way to copy/paste some data to a smartphone.

So, via [Wayback/Archive] generate qr code site:github.io – Google Search, I found these two (the first is based on the JavaScript source in second, but has QR codes with larger blocks and is therefore easier to scan):

  1. [Wayback/Archive] QR Code Generator
  2. [Wayback/Archive] QR Code Generator

–jeroen

Posted in Development, HTML, JavaScript/ECMAScript, Scripting, Software Development, Web Development | Leave a Comment »

Salvaging maxtor/seagate SATA drives from their USB external counterparts

Posted by jpluimers on 2023/01/02

Interesting idea from [WayBack] Western Digital toont prototype van compacte externe 8TB-ssd – Computer – Nieuws – Tweakers:

Dreamvoid
@lordawesome • 7 januari 2020 19:13

Voor harde schijven moet je altijd bij de externe drives kijken, die zijn goedkoper (even open schroeven).

– 5 TB 2.5″ HDD: 0.018 EUR/GB
– 6 TB 3.5″ HDD: 0.017 EUR/GB
– 2 TB M.2 SSD 0.103 EUR/GB
– 1 TB 2.5″ SSD 0.096 EUR/GB

Grofweg zit er een factor 5x tussen. Probleem met SSD’s is vooral de schaling, de sweet spot qua prijs zit daar bij 1-2 TB, wat je niet veel helpt als je bijvoorbeeld 10 TB nodig hebt.

[Reactie gewijzigd door Dreamvoid op 7 januari 2020 19:22]

Reageer
+1TimoDimo
@Dreamvoid • 7 januari 2020 19:57
Dat is voor het eerst dat ik zie dat externe schijven goedkoper zijn… Hoe kan dat in hemelsnaam?
Reageer
+1Dreamvoid
@TimoDimo • 7 januari 2020 20:34

Losse harde schijven (vooral 2.5″, die dingen gaan in rack servers) gaan allemaal naar de enterprise markt, waar de klanten merkentrouw zijn en niet op een cent kijken. De concurrentie voor consumenten (externe) drives is daarentegen moordend.

Het is ook een soort ‘overschot markt’ voor de fabrikanten, loopt de HDD productie goed en is de enterprise markt niet heel hot, dan duwen ze wat extra goedkope externe drives de consumentenmarkt in en wordt het prijsverschil groter. Neemt de enterprise sector wel veel af of zijn er productieproblemen, dan verdwijnt het prijsverschil weer grotendeels.

Let wel: Western Digital soldeert de USB interface vast bij hun externe 2.5″ drives, Seagate/Maxtor doet dat (nog) niet.

–jeroen

Posted in Hardware, HDD, Power User, SSD | Leave a Comment »

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