Применение дешевых NFC меток NTAG213/215/216 работающих по стандарту ISO/IEC 14443A для дома и других сфер применения

Рассматриваются современные NFC метки NTAG213, NTAG215 и NTAG216 разработанные компанией NXP Semiconductors, работающие по стандарту ISO/IEC 14443-A. Эти метки очень популярны благодаря своей доступности, универсальности и совместимости с большинством NFC-считывателей, включая смартфоны. Фактор дешевизны и доступности определяет массовое распространение этих NFC-меток.

Reverse engineering the mysterious Up-Data Link Test Set from Apollo

https://invidious.privacyredirect.com/watch?v=videoseries;list=PL-_93BVApb5_bt3oyK2eMRXnGGS2OihXx

Back in 2021, a collector friend of ours was visiting a dusty warehouse in search of Apollo-era communications equipment. A box with NASA-style lights caught his eye—the "AGC Confirm" light suggested a connection with the Apollo Guidance Computer. Disappointingly, the box was just an empty chassis and the circuit boards were all missing. He continued to poke around the warehouse when, to his surprise, he found a bag on the other side of the warehouse that contained the missing boards! After reuniting the box with its wayward circuit cards, he brought it to us: could we make this undocumented unit work?

Omega2S vs Raspberry Pi Compute Module in 2025

Picking the right system-on-module can make or break your device’s power budget, thermal envelope, and unit economics. It’s a crucial decision when building your connected device, IoT gateway, or home automation product.

Product teams often default to the Raspberry Pi Compute Module 4 or the new CM5. But those boards can be overkill, adding watts, heat, and cost you may not need.

Below we pit the Onion Omega2S against RPi CM4/CM5 across 12 categories – power, size, firmware workflow, BoM, and more – to see which SoM wins where. Let’s see how they stack up.

Click on the comparison category...

Linux смартфон Liberux NEXX на процессоре Rockchip RK3588S с 32 ГБ ОЗУ (Краудфандинг)

Liberux NEXX — это смартфон работающий на Linux, на базе высокопроизводительного процессора Rockchip RK3588S с 32 ГБ ОЗУ, 512 ГБ eMMC Flash-памяти LPDDR4x, и оснащенный 6.34-дюймовым OLED-дисплеем с разрешением 2400×1080, разрабатываемый Liberux Labs S.L. Смартфоном для гиков на базе Linux, уже давно никого не удивишь. Популярными моделями являются Purism Librem 5 и PinePhone Pro от Pine64. Однако, они уже устарели из-за используемых старых процессоров NXP i.MX 8M (год выпуска 2019 г.) и Rockchip RK3399 (год выпуска 2016 г.). На базе Rockchip RK3399 построена плата Orange Pi 4 LTS, выпущенная аж еще в начале 2022 года. Из доступных процессоров компании Rockchip,...

Спасаем электронный микроскоп JEOL JEM-6A

Жила была компания JEOL. И продавала она на экспорт просвечивающий электронный микроскоп JEM-6A. Жило было предприятие НИИТОП, которое в 1965 году его себе приобрело для разработки оборудования для производства микроэлектроники. К сожалению, предприятие в 2018 году развалилось, но жил был один мужик, который его выкупил себе на дачу... зачем — история умалчивает... рассказать уже некому.
Микроскоп появляется на авито и тут уже я, в декабре 2024 года задумываю авантюру - в которой старейший в России — Московский политехнический музей - выкупает себе этот микроскоп. Ну а я беру на себя роль невролога, избавляя продавца от головной боли по перевозке.
Спустя полгода микроскоп...

Security Issues regarding GSMA eSIMs / eUICCs + Javacard

The independent security researcher Adam Gowdiak has published an extensive report on flaws he found in some eUICCs (the chips used to store eSIM profiles within the GSMA eSIM architecture). While the specific demonstrable exploit was in a product of one specific CardOS Vendor (Kigen, formerly part of ARM), the fundamental underlying issue is actually an architectural one.

The Oracle Javacard [memory] safety architecture relies on a so-called bytecode verifier which is a program that you run after compiling an application, but before executing the code on the Javacard. The specifications allow for both on-card and off-card verification. However,...

An Interview with Luke Plowden and Ruiyang Wang

We talk to London-based creative coders Luke Plowden and Ruiyang Wang about learning to code, what AI means for the future of code, and their upcoming Creative Coding 101 course.

Kyle Duffield: Interaction Designer

"What the audience walks away feeling matters more than the tech behind it." We spoke with interaction designer Kyle Duffield about creating meaningful digital experiences, balancing technical innovation with human connection, and his design philosophy.

HackRF Pro Q+A

This post is a collection of some of the first questions asked by the community about HackRF Pro shortly after we announced it. Questions were asked by folks across our various social media accounts and in our Discord server. The answers given here are expanded versions of how the folks on our team responded to the public question we observed.

Why is it called HackRF Pro and not HackRF Two?

We felt that “Pro” expressed the idea that this is a refinement of the HackRF One design and that “Two” would more likely be interpreted as a revolutionary design. Our goal was...

Meet HackRF Pro

We’re thrilled to announce HackRF Pro, the newest addition to the Great Scott Gadgets family of Software Defined Radio (SDR) platforms!

Building on the legacy of HackRF One, HackRF Pro is an SDR peripheral that enables transmission or reception of radio signals from 100 kHz to 6 GHz. Like its predecessor, HackRF Pro is open source hardware and designed for versatility, whether you’re developing wireless tech, researching the security of wireless devices, tinkering as a hobbyist, learning or teaching about the RF spectrum, or building advanced custom firmware.

HackRF Pro takes everything users love about HackRF One and...