The Wiert Corner – irregular stream of stuff

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

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Archive for the ‘Hardware Development’ Category

How TINY Can I go? The BEST Power Board is here! – YouTube – GreatScott!

Posted by jpluimers on 2025/04/23

[Wayback/Archive] How TINY Can I go? The BEST Power Board is here! – YouTube – GreatScott!

I will try to remake an AliExpress PCB. It is a very handy voltage converter that can take a varying battery voltage and convert it into 3.3V or 5V while only requiring very little current (25uA) on the input. Sounds awesome, but the board is way too huge. That is why I try to push the size limits in this video to the minimum.

Via: [Wayback/Archive] Making a Tiny PCB Design #electronics #diy #greatscott #science #engineering #pcb #tiny – YouTube

--jeroen

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Posted in Development, Electronics Development, Hardware, Hardware Development, Power User, USB, USB-C | Tagged: , , , , , , | Leave a Comment »

DEF CON 30 – stacksmashing – The Hitchhacker’s Guide to iPhone Lightning and JTAG Hacking – YouTube (using Raspberry Pi Zero and hand modified lightning extension cable)

Posted by jpluimers on 2025/04/16

From a few years back when Lightning debugging cables were either expensive, hard or not to get at all: [Wayback/Archive] DEF CON 30 – stacksmashing – The Hitchhacker’s Guide to iPhone Lightning and JTAG Hacking – YouTube.

Basically it is a Raspberry Pi Zero with adapted firmware connected to half a lightning extension cable.

A textual description (I wish it was linked from the above video) is at [Wayback/Archive] stacksmashing – The hitchhacker’s guide to iPhone Lightning & JTAG hacking – DEF CON Forums, which in turn refers to:

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Posted in Development, Hardware Development, iOS, iPhone, Power User, Red team, Security | Tagged: | Leave a Comment »

GitHub – PiSCSI/piscsi: PiSCSI allows a Raspberry Pi to function as emulated SCSI devices (hard disk, CD-ROM, and others) for vintage SCSI-based computers and devices. This is a fork of the RaSCSI project by GIMONS.

Posted by jpluimers on 2025/04/08

Cool (and available both for regular Raspberry Pi and Raspberry Pi Zero):

[Wayback/Archive] GitHub – PiSCSI/piscsi: PiSCSI allows a Raspberry Pi to function as emulated SCSI devices (hard disk, CD-ROM, and others) for vintage SCSI-based computers and devices. This is a fork of the RaSCSI project by GIMONS.

I wonder how it compares feature wise and performance wise to [Wayback/Archive] BlueSCSI (which is Raspberry Pi Pico based, see [Wayback/Archive] index – BlueSCSI v2 Documentation, and now has a [Wayback/Archive] BlueSCSI Wi-Fi Desk Accessory – joshua stein which is open source at [Wayback/Archive] jcs/wifi_da – BlueSCSI Wi-Fi Desk Accessory for classic Mac OS – AmendHub and important to for instance [Wayback/Archive] Adding Wi-Fi to the Macintosh Portable – joshua stein).

Via [Wayback/Archive] The RaSCSI is MAGIC for Old Macs (and Much More!) – YouTube

More links:

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Posted in Apple, Classic Macintosh, Development, Hardware Development, Hardware Interfacing, Macintosh SE/30, Power User, Raspberry Pi, Raspberry Pi Pico, Retrocomputing, RP2040, SCSI, Uncategorized | Leave a Comment »

Personalised audio cards and video books with your own video or audio file

Posted by jpluimers on 2025/04/01

For Whamageddon or Rickrolling: [Wayback/Archive] Personalised audio cards and video books with your own video or audio file (UK) /

[Wayback/Archive] Wenskaart met ingesproken boodschap of eigen muziek – Geluidkaartje (Dutch).

Or build your own with chips like these: [Wayback/Archive] 30S Sound Voice Music Recorder Board Voice Chip Module for Greeting Card DIY | eBay

Or buy blank cards:

Via [Wayback/Archive] sound record your own postcard – Google Search

--jeroen

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

Some links on USB 2.0 and 3.0 galvanic isolators

Posted by jpluimers on 2025/02/27

Will likely need some of these in the future (be remember: USB 2.0 in Bulgaria and 3.0 in Germany price difference is about 10-fold) as galvanic isolation can reduce risks of gear blowing out a lot, for example when working with SDR (software-defined radio – often USB devices) and roof antennas:

Via

  1. [WaybackSave/Archive] Mehdi on X: “What is a (USB) galvanic isolator, and when do you need one? It protects your expensive USB gadgets and also your host computer/laptop from noise, ground loop and power surges. An isolator basically sits between your computer and the target device, allowing full USB data …”
  2. [WaybackSave/Archive] Mehdi on X: “@oktayegi If you mean whether SDRs also can work via this isolator, then yes. Almost every device should work. Here’s a SDRPlay: …”
  3. [WaybackSave/Archive] Ondra OK1CDJ/OL0M🇨🇿/SV0SYH/J42T🇬🇷 on X: “@MehdiHacks Check this…”
  4. [WaybackSave/Archive] ⚡bacteriophage⚡ on X: “@ok1cdj @MehdiHacks nah, based on ADUM4160 so only 12Mbps data rate. ADUM4165 with 480 Mbps is preferable”
  5. [WaybackSave/Archive] Archimago’s Musings: MEASUREMENTS: Intona 7055-C USB 3.0 SuperSpeed Isolator. And Darko & Lavorgna hear no difference with the Silent Angel ethernet switch. [Importance of open discussions.]

Pictures below the signature.

--jeroen

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Posted in Development, Hardware, Hardware Development, Hardware Interfacing, Power User, USB, USB, USB-C | Leave a Comment »

Thread by @mariusheier on Thread Reader App – USB-A to USB-C. A @cursedconnector ? Or genius?

Posted by jpluimers on 2025/02/20

Cool:  [Wayback/Archive] Thread by @mariusheier on Thread Reader App – USB-A to USB-C. A @cursedconnector ? Or genius?

Image on the right is larger on [Wayback/Archive] Gdn-fwFW4AAao2D.jpg (964×772)

I think it is genius, as it is way shorter than what I found on sites like Amazon, ebay, Aliexpress and others.

For now I am using ones from Amazon that are a tad bit too long (thereby putting too much stress on the USB C output of my laptop), but they are charging only (no video capability): [Wayback/Archive] USB C Female to USB Male Adapter Pack of 3, Type A Power Supply Charger Cable Adapter for iPhone 11 12 13 Pro Max, SE, iPad Mini 6 Air 4 5, Apple Watch iWatch 7, Samsung Galaxy S20 S21 S22 Plus Ultra FE: Amazon.de: Computer & Accessories (image below)

The one Marius posted about is also charging only, but shorter: [Wayback/Archive] 1-10PCS Type-C 3.1 Female to Double-sided USB Am Male Connector 2.0 Charging Version Adapter with PCB Board Inside – AliExpress

Compare with the picture of the Amazon one:

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Posted in Development, Hardware Development, USB, USB, USB-C | Leave a Comment »

Thread by @dosdude1 on Thread Reader App – upgrading storage from 512GB to 8TB on an M3 Max MacBook Pro

Posted by jpluimers on 2025/02/19

Cool thread: [Wayback/Archive] Thread by @dosdude1 on Thread Reader App – upgrading storage from 512GB to 8TB on an M3 Max MacBook Pro (images at the bottom of this blog post: they are large):

Just finished my most difficult Apple Silicon storage upgrade yet… 512GB to 8TB on an M3 Max MacBook Pro! This was especially difficult, as it required installing around 100 extra tiny components to use the second set of 4 NANDs…

Because I didn’t have schematics for this model, I had to painstakingly hand draw this diagram to locate the correct position of each component, which I derived based on a schematic for a similar model. Definitely took a long time!

If I need to have a Silicon Mac upgraded, this is one of the people to keep an eye on and when needed visit [Wayback/Archive] Technical Support – DosLab Electronics.

Dosdude1 has been active in this field of work for quite some time. A nice article on earlier work is [Wayback/Archive] Collin Mistr’s Open-Hardware 2.5″ IDE SSD Aims to Bring Speedy Solid-State Storage to Vintage PCs – Hackster.io.

Via [Wayback/Archive] dosdude1’s Personal Web Server, Read the rest of this entry »

Posted in Apple, Apple Silicon, Development, Hardware Development, Mac, Power User | Leave a Comment »

Some notes on mini/micro Apple //e emulators

Posted by jpluimers on 2025/01/30

Retro computing is wildly popular, and with the rise of low cost single-board computers (SBCs for short), both Apple //e and ][+ emulators plus extension cards have proliferated,  based on Raspberry Pi (or even their RP2040 microcontroller based Pico), ESP32 or predecessor ESP8266 microcontrollers and others.

Some links for my archive:

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Posted in //e, Apple, Development, Emulators, ESP32, ESP8266, Hardware Development, Power User, Raspberry Pi, Raspberry Pi Pico, Retrocomputing, Software Development | Tagged: , , , | Leave a Comment »

Classic iPod Dock Connector to Line-in / Line-out

Posted by jpluimers on 2025/01/15

For my link archive on the Apple 30-pin Dock Connector:

–jeroen

Posted in Cable TV/Radio, Development, Hardware, Hardware Development, Hardware Interfacing, Home Audio/Video, LifeHacker, Power User | Leave a Comment »

Modifying your receiver/amplifier: Converting Phono Inputs to Line-Level

Posted by jpluimers on 2025/01/02

For my link archive: [Wayback/Archive.is] Converting Phono Inputs to Line-Level

It shows for some receiver models how to have the Phono input signals bypass the preamplifier (preamp) so they effectively become Line level inputs and there is no need for an extra devices that undoes RIAA equalisation.

If that fails, then you need something like the [Wayback/Archive.is] Line level to phono input converter diagram:

Or get you a [Wayback/Archive.is] iRIAA2 – Inverse RIAA Filter – Hagerman Audio Labs

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