Hardware Tech News

Japanese scientists have developed a new extraction method capable of recovering up to 90% of lithium from used electric vehicle batteries. This eco-friendly breakthrough could significantly reduce the environmental impact of battery disposal and decrease reliance on raw lithium mining.

A self-proclaimed USB-C maximalist details how a single universal power brick successfully charged all their electronics during a seven-week trip across Europe. This minimalist travel setup highlights the ultimate convenience and versatility of relying entirely on USB-C Power Delivery for modern gadgets.

The newly launched Satellite Tracker provides an interactive 3D map for monitoring over 30,000 orbital objects in real time. Users can track Starlink satellite trains, space stations, and rocket bodies while identifying specific passes visible from their exact location.

Readers discussing the classic textbook Fundamentals of Wireless Communication have curated a comprehensive list of alternative resources for mastering wireless theory, digital signal processing, and software-defined radio. While the original text is praised for its focus on MIMO, the community recommends supplementary books for deeper practical implementation of concepts like OFDM. For beginners and amateur radio operators seeking a more accessible entry point, several commentators suggest starting with software-defined radio guides to bridge the gap between academic theory and real-world engineering.

A developer built a custom hardware tool to measure end-to-end input latency across various Linux configurations. The project compares X11 and Wayland display servers while evaluating the performance impact of Variable Refresh Rate and DXVK. Ultimately, the testing reveals which of these specific technologies actually deliver a meaningful reduction in system lag.

Retro gaming enthusiasts are discussing the technical ingenuity behind the Sega CD release of Silpheed, which cleverly combined pre-rendered FMV and 2D sprite overlays to simulate real-time 3D graphics on limited hardware. By designing the title around the optical drive's strengths rather than the console's graphical limitations, the developers delivered a visually spectacular and memorable arcade shooter despite its simple core gameplay.

A recent article on designing and assembling a first PCB has sparked a community discussion about the accessibility and affordability of modern custom PCB manufacturing. Readers debated the trade-offs between budget-friendly overseas fabs like JLC and domestic alternatives like OSH Park, weighing factors such as production quality, customer support, and international shipping costs. While cheap overseas manufacturers dominate the hobbyist market for their low prices, many advocates still champion local companies to avoid customs hurdles and ensure reliable board quality.

A developer recently ported Linux to the legacy Sega 32X console add-on, relying entirely on software-based synchronization to overcome the hardware's lack of native primitives. This ambitious project serves as a cautionary tale in retro computing, illustrating how pushing outdated technology beyond its limits can create more problems than it solves.

A new open-source project named Beavis Ultrasound provides a modern hardware replica of the classic Gravis Ultrasound PnP ISA sound card. Developers and retro computing enthusiasts can access the design files and contribute to the project's ongoing development through its GitHub repository.

A recent post benchmarks 15 decommissioned enterprise Tesla GPUs to determine if they remain viable for modern computing workloads. Despite being widely available at extremely low prices as e-waste, the testing evaluates whether these older graphics cards still offer practical utility for today's tasks.

The updated Tiny Emulators project utilizes a unique cycle-stepped approach to emulate 8-bit CPUs and system chips, ticking the processors alongside other components rather than treating them as central controllers. Featuring stb-style C headers and an experimental Zig variant, the open-source library has been integrated into projects like the BizHawk emulator and inspired community discussions about the appeal of deep-hardware programming concepts reminiscent of the cancelled game 0x10c.

A developer recovering from health issues is leveraging AI coding tools to build a 2D roguelite game, prompting a broader Hacker News discussion on AI's role in game development. While participants praise AI for handling complex architecture and logic, they note it currently struggles with timing-based mechanics due to its inability to process real-time movement. However, commenters remain optimistic that rapid advancements in specialized inference hardware will soon overcome these temporal limitations.

Mesh LLM utilizes the iroh network to pool GPU resources across multiple machines, creating a unified distributed AI computing system. This allows developers to access a single OpenAI-compatible API using their existing hardware, offering a scalable solution for running large language models without relying on centralized servers.

Kode Dot is a new pocket-sized, modular device designed for makers, pentesters, and tech enthusiasts. Powered by ESP32-P4 and C5 chips, it features an AMOLED touchscreen, wireless connectivity, built-in sensors, and 16 programmable pins. Users can easily expand its capabilities by attaching custom snap-on modules.

A recent piece by artist pmjv explores the creation of the Prahou universe using the 9front operating system on vintage ThinkPads. The project highlights delightfully unconventional drawing techniques, such as using a physical ruler directly on a touchscreen and utilizing an old Windows XP disc. Ultimately, the work showcases an impressive blend of retro hardware, digital art, and creative world-building.

A recent New York Times Magazine feature explores the growing movement of physical computing and analog machines that prioritize the joy of creation over practical utility. By highlighting inventive projects like marble-powered paper computers, the article critiques modern technology's relentless obsession with optimization and celebrates the beauty of building fascinating, purely expressive devices.

Commenters discuss various troubleshooting steps for unreliable USB-C dock wake-up issues, suggesting tests with Android devices, Bluetooth peripherals, and USB packet debuggers. The community emphasizes that these waking failures are rarely isolated to the dock itself, but instead stem from complex interactions between laptop ports, monitors, and protocols like Thunderbolt or HDMI CEC. Ultimately, users note that modern peripherals function as interconnected network devices, transforming what seems like a simple connection into a multi-device debugging challenge.

AI neoclouds like CoreWeave and Nebius are experiencing soaring revenues and stock prices due to massive demand for GPU infrastructure. However, lacking the deep cash reserves of Big Tech, these companies are relying on complex, circular financing structures to fund their rapid expansion. This unconventional approach to securing capital has raised red flags regarding the long-term sustainability of their business models.

RISCBoy is a completely open-source portable gaming console engineered from the ground up, featuring a custom CPU, graphics processor, and printed circuit board. The comprehensive hardware design and all associated project files are publicly available for developers and tech enthusiasts to explore and modify.

A recent project demonstrates how to implement iroh on a bare ESP32 microcontroller to build a custom smart fan that automatically adjusts based on ambient temperature. This IoT device allows users to monitor its status remotely from anywhere, highlighting a practical application of modern networking tools on minimal hardware.

A visual collection from Present And Correct highlights the striking aesthetic of vintage Soviet-era control rooms filled with analog dials and large physical buttons. The images offer a nostalgic look at complex, pre-digital technology long before the advent of modern computers and screens.

A new book titled RISC-V System-on-Chip Design, authored by David Harris, James Stine, Sarah Harris, and Rose Thompson, is now available for purchase on Amazon. The publication focuses on system-on-chip design utilizing the RISC-V architecture, and buyers can currently receive free shipping on qualifying orders.

A new app called Orbit uses augmented reality to turn iPhones and iPads into real-time satellite trackers. The app allows users to point their device cameras at the sky to visually pinpoint objects in space. It currently tracks more than 15,000 items, including the ISS, planets, constellations, and orbital debris.

Reflecting on the 1984 book Digital Deli, readers discussed the extreme hardware constraints of early personal computing, noting how one contributor hand-coded the bestselling Apple Writer word processor using just 8KB of memory. The discussion contrasted these tight historical limitations with modern software bloat and today's massive GPU memory requirements. Participants also observed a cyclical trend in the industry, suggesting that modern AI tools are ushering in a new era of independent cottage programmers reminiscent of the early PC days.

The open-source QuadRF is a Raspberry Pi 5-powered phased-array radio that utilizes advanced beamforming to track drones and detect WiFi signals through walls. Functioning as a wireless equivalent to network sniffers like Wireshark, this device highlights the advanced remote surveillance capabilities currently available to both the open-source community and government agencies.

An Indonesian solo developer named Rizky Nova has built a widely praised train simulation game using Unreal Engine on a low-spec machine with just 16GB of RAM. This impressive technical achievement has sparked extensive online discussions regarding how hardware limitations and resource constraints can foster creativity and drive innovative programming.

A newly launched web-based simulator allows users to build and run crank-angle-resolved combustion engines while analyzing real-time thermodynamic data. The interactive platform features P-V diagrams, dyno curves, and knock predictions to provide comprehensive insights into engine performance and modeling.

Apple is experiencing incredible demand for its Mac mini and Mac Studio desktops as they become the preferred machines for running AI agents. Apple silicon executive Doug Brooks highlighted this trend in a recent interview ahead of WWDC 2026, noting the growing reliance on the company's custom chips for on-device AI workloads.

A retrospective on the history of 3D Realms and Apogee Software has prompted readers to share nostalgic memories of the 1990s shareware era, early game modding, and snail-mail customer support. The discussion also sparked technical debates over the actual adoption rates of mid-90s modem speeds and how bandwidth constraints shaped software distribution. Additionally, commenters criticized the modern iteration of 3D Realms for taking down its legacy website, contradicting the current CEO's stated reverence for the original studio.

A developer has introduced Colibri, a lightweight engine that runs the massive 744-billion parameter GLM-5.2 AI model on consumer machines with just 25GB of RAM. Written in pure C with zero dependencies, the project achieves this feat by streaming model experts directly from disk instead of loading them entirely into memory. This innovation dramatically lowers the hardware requirements for running immensely large language models locally.