Archive for the ‘Hardware’ Category
Posted by jpluimers on 2020/07/21
Good to remember both these:
[WayBack] Operant Conditioning by Software Bugs – Embedded in Academia which means when using a system, you subconsciously start behaving around it’s issues. This also happens when you the software you wrote the software for such a system: you hardly test the things that you broke.
The magic SysReq key on Linux systems running on PC-hardware allows you to sync/mount read-only/shutdown a system by keyboard (and many more options – see the Wikipedia list below). Do not forget to enable this as it is disabled by default. And remember that many laptops forego the SysReq key (as do Mac systems).
The order while holding Alt-SysReq down is S,U,B…
Both via [WayBack] Kristian Köhntopp – Google+
–jeroen
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Posted in *nix, *nix-tools, Development, Keyboards and Keyboard Shortcuts, Power User, Software Development, ThinkPad | Leave a Comment »
Posted by jpluimers on 2020/07/16
Just in case I want to really go off-grid: [WayBack] Li-Ion BMS – Lithium-Ion Battery Management Systems and large battery packs
It has a configuration selector module pointing to companies (even one in The Netherlands) that can help me out.
Via [WayBack] DIY Electric Car Forums – View Single Post – using 18650 cells to make 25kwh battery
Hopefully they are based on 18650 batteries:
–jeroen
Posted in 18650, Batteries, Hardware, Li-Ion, LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2020/07/16
Thomas Rini (of U-Boot and Yocto fame) mentioned these solutions for remote power control of IoT devices and remote updating SD cards in this slide State of the U-Boot – Thomas Rini, Konsulko Group:
- FlashAir WiFi enabled SD cards
Two power solutions I like myself are:
The combination of these allows for really flexible production and testing environments.
Slides at [WayBack] ELC2017 – State of the U-Boot.pdf
–jeroen
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Posted in Arduino, Development, ESP8266, ESP8266X, Hardware Development, Hardware Interfacing, IoT Internet of Things, Network-and-equipment, Odroid, Power User, Raspberry Pi | Leave a Comment »
Posted by jpluimers on 2020/07/10
I am still a bit ambivalent on remapping keys on a keyboard, mainly because of two reasons:
- Without remapping, tools used for virtualisation, remote access and shells already get it wrong every now and then. Finding causes is already tough, so adding more degrees of freedom complicates this more.
- Switching systems or assisting people without the tools can be cumbersome. I vividly remember the really hard times when I had switched from Windows Explorer to Windows Commander (now Total Commander) and could not use it on a sequence of contracting jobs.
Just in case I am going to use it:
–jeroen
Via:
Posted in Keyboards and Keyboard Shortcuts, Power User | Leave a Comment »
Posted by jpluimers on 2020/07/06
[WayBack] RB450G and “..could not get answer from dns server” – MikroTik: I do not see a default route. It would be the route with “dst-address=0.0.0.0/0“.
–jeroen
Posted in Internet, MikroTik, Power User, routers | Leave a Comment »
Posted by jpluimers on 2020/06/01
A few links on Logitech remotes for presenters.
I like how the spotlight can highlight portions of the screen, but I wish it had the LCD display timer of the R800 and R700.
The big problem of the Spotlight seems to be the stability of the Logitech software, both on Windows and on MacOS.
The R series (R800/R700/R500/R400) have lasers that do not reflected well by modern big screens.
A great review of the various presenters is at [WayBack] What’s the Best Logitech Pointer? – R400 vs R700 vs R800 – Sky Tech Lasers.
More background reading at
--jeroen
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Posted by jpluimers on 2020/05/07
Cool tool:
MultiBootUSB is a cross platform software written in python which allows you to install multiple live linux on a USB disk non destructively and option to uninstall distros. Try out the world’s first true cross platform multi boot live usb creator for free. Download Now!
Information and downloads on [WayBack] MultiBootUSB.
There are actually a few repositories within [WayBack] mbusb (multibootusb) · GitHub of which one has a ruby implementation as well.
A more elaborate article is on [WayBack] How to Install Multiple Linux Distributions on One USB, but the site should get you going just fine.
Via: [WayBack] Multiple Linux distributions on one UBS stick. I just tried it with: * CloneZilla * Lubuntu * LiteLinux The tool they describe – MultiBootUSB – comes w… – Thomas Mueller (dummzeuch) – Google+
–jeroen
Posted in *nix, *nix-tools, Development, Hardware, Linux, Power User, Python, Software Development, USB | Leave a Comment »
Posted by jpluimers on 2020/04/03
I totally forgot it was possible to usie an old Fritz!Box to act as a DECT repeater:
Um die Abdeckung von DECT für mobile Festnetztelefone zu verbessern, lässt sich eine ältere Fritzbox verwenden.
Source: [WayBack] Ältere Fritzbox als DECT-Repeater verwenden – PC-WELT
Via: [WayBack] Bludau Media – Google+
–jeroen
Posted in Fritz!, Fritz!Box, Internet, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 