Such a cool piece of computer history: [Wayback/Archive] “Mozart or Bach?” – YouTube
Full article: [Wayback/Archive] Programming in Harmony – CHM
--jeroen
Archive for the ‘Hardware Interfacing’ Category
“Mozart or Bach?” – YouTube: The very first polyphonic music on a computer – Peter Samson programmed it on a PDP-1
Posted by jpluimers on 2025/12/23
Posted in Development, Hardware Interfacing, History, Software Development | Leave a Comment »
Get it while it lasts: Led-pixel display (various Action EU stores)
Posted by jpluimers on 2025/12/11
A cool LED display that is programmable through Python (see [Wayback/Archive] Action led paneel – Boekenwuurm’s blog) made me realise how big Action has grown:
About EUR 20 or CHF 24 in the order of the below query:
fr-fr:[WaybackSave/Archive] Panneau pixel LED | Action FRnl-nl:[WaybackSave/Archive] Led-pixel scherm | Action NLpl-pl:[WaybackSave/Archive] Pikselowy ekran LED | Action PLde-ch:[WaybackSave/Archive] LED Pixel-Display | Action CHro-ro:[WaybackSave/Archive] Ecran LED cu pixeli | Action ROpt-pt:[Wayback/Archive] Ecrã de píxeis LED | Action PTit-it:[Wayback/Archive] Action Italia: piccoli prezzi, grandi sorrisi | Action IT (not available any more)es-es:[WaybackSave/Archive] Pantalla de píxeles led | Action ESsk-sk:[WaybackSave/Archive] Pixelový LED displej | Action SKcs-cz:[WaybackSave/Archive] Pixelový LED panel | Action CZfr-ch:[WaybackSave/Archive] Panneau pixel LED | Action CHnl-be:[WaybackSave/Archive] Led-pixel scherm | Action BEit-ch:[WaybackSave/Archive] Schermo pixel a LED | Action CH
There is also a square one, but that one does not remember it’s content during a power off/on cycle.
The above blog mentions this library which sees regular updates: [Wayback/Archive] GitHub – lucagoc/pypixelcolor: A Python library to control iPixel Color devices.
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Posted in Development, Hardware Interfacing, Python, Scripting, Software Development | Leave a Comment »
Interesting; Meshtastic
Posted by jpluimers on 2025/11/27
An open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices
Via [Wayback/Archive] @jilles_com@infosec.exchange on Twitter: “Will be taking to meshtastic.org Lora 433MHz modules to @hotelhacker. Might be cool if more people could bring some to setup a larger mesh and play with them. amzn.eu/d/aCgULy4“
Products:
- 433Mhz: [Wayback/Archive] LILYGO LORA32 T-Beam ESP32 Development Board WiFi BLE CH9102F Chip TTGO OLED Module Meshtastic Motherboards: Amazon.de: Computer & Accessories
- 866/915 Mhz: [Wayback/Archive] LILYGO T-Beam LORA32 ESP32 Development Board WiFi BLE CH9102F Chip Meshtastic TTGO Mainboards Soldered OLED Module: Amazon.de: Computer & Accessories
For both boards, this holds:
1. The Meshtastic program is not pre-installed on this product. If you need to install, please check the steps:
github.com/geeksville/Meshtastic-Android/blob/master/README.md
github.com/meshtastic/meshtastic-device/releases
2. If GPS does not work, the following situations may occur:
Install the Meshtastic firmware before and now reset the GPS when you switch to another firmware.
Reset steps: github.com/Xinyuan-LilyGO/LilyGo-LoRa-Series/tree/master/firmware/GPS_%20reset_test
3. If GPS is weak indoors, it can be used outdoors
4. The GPS antenna is not installed stably, you can check if the interface is attached to the GPS antenna
Related:
- [Wayback/Archive] Meshtastic (@TheMeshtastic)
- [Wayback/Archive] LILYGO (@lilygo9)
- [Wayback/Archive] @jilles_com@infosec.exchange on Twitter: “Boot button for
flasher.Meshtastic.orgweb flasher.”
- [Wayback/Archive] @jilles_com@infosec.exchange on Twitter: “Received @TheMeshtastic module by @lilygo9 I ordered yesterday for @HotelHacker on Friday.”
–jeroen
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Posted in Development, Hardware, Hardware Development, Hardware Interfacing, IoT Internet of Things, LoRa - Long Range wireless communications network, Network-and-equipment, Power User | Leave a Comment »
Rudimentary DaynaPORT packet driver to use WiFi from DOS using BlueSCSI: GitHub – cml37/daynaport-dos-packet-driver
Posted by jpluimers on 2025/10/08
Despite beta or early alpha quality [Wayback/Archive] GitHub – cml37/daynaport-dos-packet-driver by by [Wayback/Archive] RetroTech Chris – YouTube is very cool.
Main source: [Wayback/Archive] daynaport-dos-packet-driver/src/dayna.c at main · cml37/daynaport-dos-packet-driver · GitHub
Related:
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Posted in C, Development, Hardware Development, Hardware Interfacing, MS-DOS, Network-and-equipment, SCSI, Software Development, TSR Terminate and Stay Resitent, Turbo C | Leave a Comment »
i-am-shodan/USBArmyKnife: USB Army Knife – the ultimate close access tool for penetration testers and red teamers.
Posted by jpluimers on 2025/09/30
Now that I got pointed to this twice (see “Via” below), I need to get one so I can play with it: [Wayback/Archive] GitHub – i-am-shodan/USBArmyKnife: USB Army Knife – the ultimate close access tool for penetration testers and red teamers.
Via:
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Posted in *nix, *nix-tools, Blue team, Bluetooth, Development, Encryption, ESP32, Hardware, Hardware Development, Hardware Interfacing, Home Audio/Video, HTTPS/TLS security, Infosec (Information Security), Network-and-equipment, Power User, Red team, Software Development, WiFi, Wireshark | Tagged: USBArmyKnife | Leave a Comment »
Jeff Geerling: Trying out a cheap USB VK-172 GPS dongle on a Mac | Jeff Geerling
Posted by jpluimers on 2025/09/11
On my list of things to try out (and see if it is better than an NTP clock):
- [Wayback/Archive] Trying out a cheap USB VK-172 GPS dongle on a Mac | Jeff Geerling
- [Wayback/Archive] DIY PTP Grandmaster Clock with a Raspberry Pi | Jeff Geerling
--jeroen
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Posted in Development, Hardware Interfacing, Legacy Ports: COM, Software Development, USB | Leave a Comment »
peter purgathofer: “… i recently found a little HDMI-fob that fakes a second screen; i can now see my presenters’ notes on the built-in screen, while the presentation is on a hallucinated second screen …” – 🌱 hci.social
Posted by jpluimers on 2025/08/06
The below post reminded me that around black friday I bought [Wayback/Archive] ADWITS 2-Pack 4K 2K 1080P 30Hz to 60Hz Support HDMI Display Emulator DDC EDID Headless Ghost Monitor Adapter Dummy Plug, Highest 4096 x 2160 @ 60Hz – Gold Colour: Amazon.de: PC & Video Games
[Wayback/Archive] peter purgathofer: “today i gave a talk, where the…” – 🌱 hci.social
today i gave a talk, where the setup was that i had to share my presentation over zoom, but i didn’t have a second screen. this usually meant that i have to forgo seeing my presenters’ notes because my notebook’s screen would be the shared presentation screen.
i recently found a little HDMI-fob that fakes a second screen; i can now see my presenters’ notes on the built-in screen, while the presentation is on a hallucinated second screen.
simple and effective.
--jeroen
Image from the Toot: [Wayback/Archive] 6af960c3f84a12e8.jpeg (2939×2821)
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Posted in Development, Hardware Interfacing, HDMI, LifeHacker, Power User | Leave a Comment »
Power goes nuts – Network UPS Tools on a Raspberry Pi! – Jeff Geerlings -YouTube
Posted by jpluimers on 2025/07/17
Interesting NUT explanation: [Wayback/Archive] Save your servers! NUT on a Raspberry Pi! – YouTube.
Wonder how well it does with a combo of APC and Victron UPS systems.
Related:
- [Wayback/Archive] GitHub – geerlingguy/pi-nut: Raspberry Pi NUT configuration for UPS monitoring and safe server shutdowns
- [Wayback/Archive] GitHub – geerlingguy/ansible-role-nut_client: Ansible Role – NUT Client configuration
--jeroen
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Posted in apcupsd, Development, Hardware Development, Hardware Interfacing, Power User, Raspberry Pi, UPS | Leave a Comment »
Dell 3060/5060/7060 Micro optional video boards
Posted by jpluimers on 2025/07/07
It was pretty hard to find any model/part-number information on optional video boards for the Dell 3060/5060/7060 Micro series (also known as Regulatory Model D10U and Regulatory Type D10U003).
These models by default had HDMI (version 1.4) and full-size DisplayPort (version 1.2) and additionally could ship with these configurations:
- no optional video port
- optional VGA port
- optional HDMI 2.0b port (which unlike HDMI 1.4 or DisplayPort 1.2 supports HDR10)
- optional DisplayPort 1.2 port
- optional USB–Type C Alt Mode (Alternate Mode)
There was (seems not available any more) a serial port (:
Further below are some links I found, but first a ink to a good post on differences between 3060/5060/5070:
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Posted in Dell Optiplex 3060/5060/7060 Micro, Development, Hardware, Hardware Interfacing, HDMI, Power User | Leave a Comment »
For my link archive: swSIM and swICC by Tomasz Lisowski, two open source repositories to enable SIM card emulation
Posted by jpluimers on 2025/06/10
I wonder how this evolved, as the links are from fall 2022:
- [Wayback/Archive] nSinus-R (@nsr@infosec.exchange) on Twitter: “Happy to announce the release of swSIM and swICC by Tomasz Lisowski, two open source repositories to enable SIM card emulation: …, …. Among others, we attached the emulator to a real phone via SIMTrace2 and interact with test networks!”
More links and info below, but first the image from the above Tweet:
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Posted in Development, Hardware, Hardware Development, Hardware Interfacing, Raspberry Pi, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 