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Поднимаем сеть на коаксиальном кабеле в 2026 году
Приветствую всех!
Многие сейчас уже и не вспомнят, что такое «тонкий Ethernet», зачем компьютеру кабель, внешне похожий на телевизионный, и какими в своё время были компьютерные сети. И, признаться, те, кто не застал это всё, практически ничего не потеряли.
И вот как-то раз я задумался: а как насчёт попробовать связать пару компьютеров по такой сети уже в наши дни? Что из этого получится, и стоит ли вообще пробовать всё это? Сейчас и узнаем…
Press F1 to continueBuild your own Dial-up ISP with a Raspberry Pi
Last year my aunt let me add her original Tangerine iBook G3 clamshell to my collection of old Macs1.
It came with an AirPort card—a $99 add-on Apple made that ushered in the Wi-Fi era. The iBook G3 was the first consumer laptop with built-in Wi-Fi antennas, and by far the cheapest way to get a computer onto an 802.11 wireless network.
Кто и как узнаёт, что ваш лифт застрял?
Приветствую всех!
Все мы наверняка видели кнопку вызова диспетчера в каждой кабине лифта. Думаю, каждому из нас нет-нет, да хотелось однажды её нажать. А кому-то, возможно, и доводилось это делать по какой-то весомой причине.
Сегодня же мы посмотрим, что стоит за возможностью сообщить о неисправности лифта в любой момент нажатием одной-единственной кнопки. Посмотрим на само оборудование и, конечно, попробуем его запустить. Как оказалось, всё это намного сложнее, чем я думал…
Вызвать диспетчераOpenTitan Big Number (OTBN) Accelerator Hardware Extensions for Post-Quantum Cryptography – Extended Design Rationale
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DRAM pricing is killing the hobbyist SBC market
Today Raspberry Pi announced more price increases for all Pis with LPDDR4 RAM, alongside a 'right-sized' 3GB RAM Pi 4 for $83.75.
The price increases bring the 16GB Pi 5 up to $299.99.
Despite today's date, this is not a joke.
I published a video going over the state of the hobbyist 'high end SBC' market (4/8/16 GB models in the current generation), which I'll embed below:
But if you'd like the tl;dr:
Custom Images on CFA735 and CFA835
The CFA735 and CFA835 product lines have the option to store images on the display.
Image from Computer. Open the photo in PaintI am going to just use a simple TESTING text in paint to demonstrate how to convert and show on your display.
Open photo in Paint Make sure it is smaller than 244×68 Pixels Save it as Monochrome Bitmap (.bmp) Sending the Photo to the Display Open the port to the display Choose Packet type of 40,2 = Send Image Data to LCD from Host In the Data field there needs to be a string similar to the one I have provided int he...Name that Ware, March 2026
The Ware for March 2026 is below:
This ware malfunctioned, so I took it apart to see what’s going on and now it’s this month’s Name that Ware. As it would be far too easy to guess if I showed the whole circuit board, this is just a portion of the whole ware. I suspect the nature of the ware will be easy to figure out, but would be impressed if anyone can determine the exact make & model, since these are likely OEM’d by a handful of factories and the same core design is shared among a wide family of...
Winner, Name that Ware February 2026
The Ware for February 2026 is a WITRN C5. Congrats to Tim for guessing it, email me for your prize!
The rise and fall of IBM's 4 Pi aerospace computers: an illustrated history
The morning of April 12, 1981, 20 years to the day after Yuri Gagarin became the first person in space, the Space Shuttle thundered into the Florida sky. Commander Young and Pilot Crippen were at the controls as the Shuttle ascended on its first flight. But the launch, like much of the flight, was really under the control of four computers in the avionics bays one deck below the crew. A fifth computer stood ready to take over in case of a catastrophic computer malfunction. These computers, Model AP-101B, were part of IBM's System/4 Pi family.
The Space Shuttle AP-101B computer. This unit flew on multiple...Two TFT Graphics Libraries
This article describes two alternative graphics libraries that support a range of different colour TFT displays, and combine fast performance with minimal memory usage:
The Sampler example running on an ATtiny85 and
driving an Adafruit 1.28" round 240x240 colour TFT display.