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’ Category

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Reflection Frame: is there a public API yet?

Posted by jpluimers on 2026/04/09

The display quality of [Wayback/Archive] Reflection Frame is nice, but the there was no public API at the time of writing, so I wonder if there is now.

Public API request initially denied at [WaybackSave/Archive] Reflection Frame: Digital Photo Prints by Creative Design Worx — Kickstarter:

  1. Would you expose some simple REST API that would accept a jpeg or similar? It’s fine if it needs to be pre-dithered. Only interested in this if it can be controlled from Home Assistant, not interested in manually using any smartphone app.
  2. … At this time, we don’t have plans to open-source the connection protocol, as our hardware and firmware are designed as a proprietary system. …

Via [Wayback/Archive] Colour E-Ink Picture Frame – The Reflection Frame – YouTube.

--jeroen

Posted in Development, Hardware, Hardware Interfacing, IoT Internet of Things, Power User, Software Development | Leave a Comment »

Some links on non-official Ring API libraries and tools

Posted by jpluimers on 2026/03/26

There is no official Ring API. But there are libraries and tools around that can talk to a Ring ecosystem, mostly written in JavaScript or Python.

Some links I found:

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Posted in *nix, *nix-tools, cURL, Development, Hardware, IoT Internet of Things, JavaScript/ECMAScript, Network-and-equipment, Power User, Python, Ring Doorbell/Chime (Amazon), Scripting, Software Development | Leave a Comment »

Some notes on PCIe based KVM over IP and splitting video (as modern KVM over IP do not seem to do passthrough) for remote out-of-band management

Posted by jpluimers on 2026/03/13

The notes are based on the NanoKVM PCIe as that is what I wanted to set-up on a Windows 11 compatible PC that could be remotely managed for someone not savvy enough to do that themselves. They had an old Supermicro based PC with IPMI which kind of does IPKVM when using the embedded video hardware, but back when I wrote this early 2025 – the year Windows 10 would become end-of-life – it was:

  • a nightmare to figure out which Supermicro mainboards were Windows 11 compatible
  • remote IPMI tooling ¹ was a pain to get working (the most important one is IPMIView which requires Java and even with Java installed would have issues connecting to various generations of IPMI)
  • newer KVM tooling has way better
    • user experience than classic ones like IPMI and iDRAC
    • features like for instance WireGuard support which makes for way less network configuration
    • open source software (for at least NanoKVM I mention here, but also for Pi-KVM which has the drawback of also requiring a Raspberry Pi)

Since none of the modern remote KVM hardware tooling seems to be able to do passthrough video, the solution I researched for was to split the outgoing video signal (either Displayport or HDMI), then optionally convert Displayport to HDMI and finally route that HDMI into the remote KVM hardware.

Links

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Posted in Displays, Hardware, IPMI, KVM keyboard/video/mouse, Power User, SuperMicro, Windows, Windows 11 | Tagged: | Leave a Comment »

When your M.2 card is too small: Kris on Twitter

Posted by jpluimers on 2026/03/13

Why I try to get long M.2 cards: [Wayback/Archive] Kris on Twitter: “…”

Image

A more proper solution:

https://www.printables.com/model/369386-m2-ngff-2230-to-2260-adapter

–jeroen

Posted in Hardware, M.2/NGFF, Power User | Leave a Comment »

Solving OKI Errors while printing “544: Invalid Y C”, “545: Invalid M C”, “546: Invalid C C”, “547: Invalid K C”, or “544:Y Invalid C”, “545: M Invalid C”, “546: C Invalid C”, “547: K Invalid C”

Posted by jpluimers on 2026/03/09

If any of the below OKI error codes occur during printing then first re-seat (unlock, then lock) the corresponding toner cartridge.

When the error reoccurs, then wear a mask (toner spills can be dangerous to your lungs), then: unlock the toner cartridge, remove it, vacuum away any of the toner spill in the printer and on the cartridge, reinsert it and lock it.

The cause is a mechanical issue that happens both when only using original OKI toner cartridges and OEM or third party ones: wear of the parts over time will spill more and more toner causing the locked cartridge detection to cause a faulty result due to excessive spilled toner build-up.

For me this mostly happens on the colour cartridges and far less often on the black cartridge.

Error code list for the message at [Wayback/Archive] Troubleshooting | OKI “Check Toner Cartridge. Improper Lock Lever Position. Error: 544, 545, 546, 547”:

  • 544: Yellow (abbreviated as Y)
  • 545: Magenta (abbreviated as M)
  • 546: Cyan (abbreviated as C)
  • 547: Black (abbreviated as K, but sometimes as B)

On the above page self the solution lists as

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Posted in Hardware, OKI C332, OKI MC363/MC363DNW, OKI Printers, Power User, Printers | Leave a Comment »

Link dump on GL.iNet and WireGuard

Posted by jpluimers on 2026/02/20

For my link archive, as these might be useful one day:

WireGuard on Gl.INet devices

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Posted in GL-AR300M, GL.iNet, GL.iNET GL-SFT1200, Hardware, Network-and-equipment, Power User | Leave a Comment »

Enabling TRIM on an external SSD on a Raspberry Pi | Jeff Geerling

Posted by jpluimers on 2026/02/19

For my link archive: [Wayback/Archive] Enabling TRIM on an external SSD on a Raspberry Pi | Jeff Geerling

Printing to large format paper or displaying it on large screens introduces a lot of whitespace resulting in the listings having horizontal scrollbars. That was easier to circumvent in CSS than I initially thought, so I wrote [Wayback/Archive] Thread by @jpluimers on Thread Reader App:

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Posted in Software Development, Development, Power User, Web Development, CSS, HTML, Hardware, SSD, Trim | Leave a Comment »

Ring Video Doorbell Comparison chart

Posted by jpluimers on 2026/02/16

Yes, I know: Ring and controversy.

Still need to figure out how to replace their ecosystem without shelling out far above 1K of money though, so for now – as our main doorbell is showing deterioration and hoping there would be PoE powered ones – a comparison chart PDF:

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Posted in Hardware, IoT Internet of Things, Network-and-equipment, Power User, Ring Doorbell/Chime (Amazon) | Leave a Comment »

From Meh to WOW – With 1 “Tiny” Hack! – YouTube – where the comments mention better ways than this convoluted solution

Posted by jpluimers on 2026/02/03

[Wayback/Archive] From Meh to WOW – With 1 “Tiny” Hack! – YouTube shows an interesting but convoluted solution to solve temperature drift on a cheap Tuya WT410-BH-3A-W thermostat (there are similar models, see below) based on the replacement sensor [Wayback/Archive] WSEN-TIDS Temperature Sensor IC & EV-Kits | Sensors | Würth Elektronik Product Catalog.

Luckily the commenters stepped in and suggest better and easier ways.

On the other hand, the solution is nice to know as it allows plugging in a remote thermostat that sits in a better place to read the temperature while the control bits stay in a place where it is easier to manually adjust.

Chapters:

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Posted in ARM Cortex-M, Development, Domotics/Smarthome, ESP32, ESPHome, Hardware, Hardware Development, Hardware Interfacing, Home Assistant, Homey, IoT Internet of Things, Network-and-equipment, Power User, STM32 | Leave a Comment »

freebsd – Expanding the disk size on pfsense under VMWare ESXi – Unix & Linux Stack Exchange

Posted by jpluimers on 2026/01/30

It’s a tricky process, but I might need this in the future:

–jeroen

Posted in Hardware, Network-and-equipment, pfSense, Power User, routers, Virtualization, VMware, VMware ESXi | Leave a Comment »

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