Webtagr - Technology News Summarizer

Bambu Lab's CyberBrick: A Programmable Toy System Built for Creativity

2025-03-17

Bambu Lab, a 3D printer manufacturer, has launched CyberBrick, a new toy system under its MakerWorld brand. CyberBrick combines reusable, programmable electronics with 3D-printable models, enabling a wide range of toys based on official and community designs. Initially a Kickstarter exclusive, it's already exceeded its funding goal, with kits shipping in May 2025. The system launches with three official toys (forklift, truck, soccer bot) and a wireless controller. Kits, starting at $29.99, include solderless electronics and instructions for 3D printing. Pre-printed parts are available on Kickstarter but won't be offered through Bambu's Maker's Supply store. Beyond the official toys, CyberBrick boasts community designs like a lunar rover and a Tesla Cybertruck replica, showcasing its expandable nature. The system even extends beyond toys, with components for timelapse 3D printing. Crucially, everything is programmable, opening up endless possibilities for creative construction and coding.

(www.theverge.com)

Hardware Programmable Toys Maker Ecosystem

PineTab-V Updated: A Budget RISC-V Dev Tablet Gets a Refresh

2025-03-17

Pine64 has released an updated version of its PineTab-V tablet. This 10.1-inch tablet features a StarFive JH7110 RISC-V processor, 8GB of RAM, 128GB of storage, and a detachable backlit keyboard. Improvements include an accelerometer, LED indicator light, and an improved EEPROM ID, along with a fix for slow charging when powered off. It now ships with a Debian-based StarFive GNU/Linux distro. While not a performance powerhouse, the $225 PineTab-V remains attractive to developers and enthusiasts as a RISC-V development platform.

(liliputing.com)

Hardware

The Amiga 600: Commodore's Epic Fail, Now a Retro Gem

2025-03-16

The Amiga 600, one of Commodore's last Amigas, epitomized the company's downfall. Launched in 1992, it featured outdated 1985 technology, lacked competitiveness in price and expandability, and suffered from inferior graphics compared to PCs. This article delves into the reasons for its failure, contrasting it with the more successful Amiga 500. Despite its initial flop, the Amiga 600's compact size has made it a popular choice among retro enthusiasts today. The author analyzes Commodore's strategic missteps and the Amiga 600's technical shortcomings, highlighting how a once-failed product has become a nostalgic icon.

(dfarq.homeip.net)

Hardware

Bolt Graphics' Zeus GPU: A RISC-V Challenger to Nvidia

2025-03-16

Bolt Graphics, a California startup, unveiled its Zeus GPU platform based on the open-source RISC-V architecture. In path tracing workloads, Zeus significantly outperforms Nvidia's RTX 5090, boasting up to 10x the speed. However, its performance in traditional rendering and AI tasks remains unclear, and a mature software ecosystem is lacking. Zeus uses a multi-chiplet design, offering various configurations with up to 2TB of memory and built-in high-speed networking, targeting high-performance computing and scientific simulations. Developer kits are slated for late 2025, with mass production in late 2026. Despite significant challenges, Zeus's emergence injects new dynamism into the GPU market.

(www.tomshardware.com)

Hardware

Comet: A Portable Hardware KVM Powerhouse

2025-03-16

Comet is a compact and powerful Remote KVM offering 2K resolution at 60FPS for smooth video. Powered by a 1.5GHz quad-core processor, it boasts Gigabit Ethernet for fast networking and USB 2.0 for peripherals like finger switches. Type-C power, HDMI-IN for video input, and a USB device port for a mouse ensure versatility. Compatible with mini PCs, desktops, laptops, servers, industrial PCs, and TV boxes.

(www.gl-inet.com)

Hardware Remote KVM Portable Hardware

Deep Dive into Intel Battlemage's Ray Tracing Performance

2025-03-16

This article delves into the ray tracing performance of Intel's Arc B580 GPU under the Battlemage architecture. Analyzing Cyberpunk 2077's path tracing and 3DMark Port Royal benchmark, it reveals improvements in Battlemage's Ray Tracing Accelerator (RTA), including a tripled ray traversal pipeline, doubled triangle intersection test rate, and a 16KB BVH cache. While high occupancy in Cyberpunk 2077's path tracing didn't translate to high execution unit utilization, the improved cache and architecture excelled in Port Royal. The article concludes that Battlemage shows significant ray tracing advancements, but the memory subsystem remains a performance bottleneck.

(chipsandcheese.com)

Hardware

ESP32 WiFi Connectivity Woes: Practical Tips and Tricks

2025-03-16

Experiencing intermittent WiFi connectivity issues with your ESP32-based IoT projects? This article shares several practical solutions, including disabling ESP32's WiFi power saving mode, setting your AP to use 20MHz channels, and pinning your ESP32 to a specific access point. While lacking rigorous scientific backing, these anecdotal solutions have proven effective for the author, eliminating frequent network dropouts.

(supakeen.com)

Hardware

AMD's Strix Halo SoC: A Handheld Threadripper?

2025-03-14

At CES 2025, Mahesh Subramony, AMD Senior Fellow, unveiled the Strix Halo SoC, a groundbreaking integrated processor boasting a Zen 5 CPU and a powerful iGPU. Unlike desktop Zen 5, Strix Halo prioritizes power efficiency with innovative die-to-die interconnect technology, reducing latency and boosting efficiency. A 32MB MALL cache primarily amplifies GPU bandwidth; while inaccessible to the CPU directly, its design allows for future software updates to expand functionality. Intended as a high-performance mobile workstation, Strix Halo features a full 512-bit FPU and impressive multi-threaded performance.

(chipsandcheese.com)

Hardware

WebUSB Bypass: Controlling a Raspberry Pi Pico via a U2F Exploit

2025-03-14

Control a Raspberry Pi Pico from your browser without WebUSB! This article details a method that exploits a vulnerability in the U2F security key protocol. By emulating a U2F security key, data is disguised as a signature, bypassing browser security restrictions to control the Pico's LED. While this leverages a U2F flaw, it's not a security vulnerability in itself, only working on devices intentionally designed with this vulnerability. The article stresses the risks of connecting unknown USB devices.

(github.com)

Hardware

Windows Update Bricking USB Printers: Random Text Mayhem

2025-03-13

Microsoft has acknowledged that recent Windows updates (KB5050092 and later, released since January 29th, 2025) are causing some dual-mode USB printers (supporting both USB Print and IPP over USB) to print random gibberish. This includes network commands and unusual characters. Windows 10 22H2 and Windows 11 22H2/23H2 are affected; Windows 11 24H2 is not. Microsoft has fixed this via Known Issue Rollback (KIR), and the fix will also automatically roll out in a future update. For enterprise environments, IT admins need to install and configure specific group policies to resolve the issue on affected devices.

(www.bleepingcomputer.com)

Hardware Windows Update USB Printer

DIY Telescopes: A Beginner's Guide to Amateur Telescope Making

2025-03-13

This guide explores the world of Amateur Telescope Making (ATM), tracing its history from Russell Porter's pioneering work to the modern era. It emphasizes the rewarding aspects of building your own telescope: the satisfaction of crafting a tool for celestial observation, learning about optics, and the pride of accomplishment. The guide covers mirror grinding, optical testing, and telescope assembly, providing numerous resources and links, making it ideal for beginners.

(stellafane.org)

Hardware telescope making

Game Boy Advance Deep Dive: The Rise of ARM and a Handheld Legend

2025-03-13

This article delves into the inner workings of the Game Boy Advance, focusing on its core ARM7TDMI processor. It traces the ARM processor's origins from Acorn Computers' BBC Micro, its collaboration with Apple, and its eventual partnership with Nintendo, becoming the heart of the Game Boy Advance. The article details the ARM7TDMI's architecture, instruction sets (ARM and Thumb), pipeline design, and memory management, explaining how the Game Boy Advance cleverly combined 16-bit and 32-bit buses. It also covers the console's graphics and audio processing systems, game cartridge format, anti-piracy measures, and the rise of Flashcarts.

(www.copetti.org)

Hardware ARM processor Handheld console

A Decade Later: Reflecting on Apple's Controversial 12-inch Retina MacBook

2025-03-13

A decade ago, Apple launched the infamous 12-inch Retina MacBook, a revolutionary yet controversial device. Its minimalist design, featuring a single USB-C port and butterfly keyboard, made it a talking point. While criticized for performance and battery life, it pioneered features like USB-C, the butterfly keyboard, and a haptic trackpad, shaping the future of Mac design. Discontinued in 2019, its design legacy lives on in the current MacBook Air.

(www.macrumors.com)

Hardware

Comma.ai Hits 10,000 Unit Sales Milestone, Eyes Massive Growth

2025-03-12

Comma.ai celebrated a major milestone: 10,000 units sold of its comma 3X, its first product to surpass 5-digit sales. This success, however, wasn't easy. After a rocky start with their 2017 Panda product, Comma.ai persevered, building its own factory, establishing a robust supply chain, and creating a product users love. With plans to expand data center and manufacturing capacity, and leveraging a large autonomous vehicle fleet for data processing, Comma.ai is poised for its biggest year yet in 2025.

(blog.comma.ai)

Hardware supply chain

AMD Ryzen 9 9950X3D: In-Depth Review of the 2nd Gen 3D V-Cache Flagship

2025-03-12

AMD unveiled a plethora of products at CES, including the Ryzen 9 9950X3D and 9900X3D, featuring the second generation 3D V-Cache technology. This article delves into the specifications, features, and performance of the Ryzen 9 9950X3D. Compared to its predecessors, the 9950X3D boasts higher clock speeds and TDP, and by directly bonding the 3D V-Cache to the bottom of the CCD, it addresses thermal limitations and unlocks full overclocking capabilities. Its massive 128MB L3 cache significantly boosts gaming performance, while AMD's 3D V-Cache Performance Optimizer ensures workloads run on the correct CCD. Benchmarks reveal the Ryzen 9 9950X3D excels in both single-threaded and multi-threaded workloads.

(hothardware.com)

Hardware

Clarification on Alleged ESP32 Backdoor

2025-03-11

Recent media reports claimed an ESP32 chip backdoor. Espressif clarifies that the reported functionality is internal debug commands for testing, not remotely accessible via Bluetooth, radio, or internet. These commands pose no security risk by themselves, though Espressif will provide a software fix to remove them. Only ESP32 chips are affected; ESP32-C, ESP32-S, and ESP32-H series are not. Espressif thanks the security researchers for their responsible disclosure.

(www.espressif.com)

Hardware

ESP32 Bluetooth Controller 'Backdoor': A False Alarm?

2025-03-11

Recent concerns have emerged regarding a potential "backdoor" or "undocumented features" in the ESP32 Bluetooth controller. Espressif has responded, stating that the so-called "undocumented HCI commands" are solely for debugging purposes and do not pose a security threat. These commands assist in debugging (e.g., read/write RAM, memory-mapped flash read, send/receive packets), and don't play an active role in standard Bluetooth host stack (like NimBLE or Bluedroid) HCI communication. In ESP32, the controller and host run on the same MCU, communicating via a virtual HCI layer. Any code accessing this layer must execute on the ESP32 with full privileges. Therefore, unless the application itself has vulnerabilities, these undocumented commands cannot be exploited. Espressif will provide a software patch to remove access to these debug commands and will document all vendor-specific HCI commands for greater transparency.

(developer.espressif.com)

Hardware Bluetooth Security

Hypershell Exoskeleton: Boosting Leg Power, But Not a Medical Device

2025-03-11

Hypershell has launched a power exoskeleton that claims to boost peak biological torques at the hip joint by up to 40%, reduce them by 30%, and provide a 30kg offset (at max assistance, adjusted to body weight). The carbon fiber version (without battery) weighs 1.8kg. The range is 17.5km at 4km/h in 30% Eco mode. Charging time is based on lab tests and may vary. Disclaimer: This product is not intended for medical use; users assume all risks.

(hypershell.tech)

Hardware exoskeleton assistive device

HP Firmware Update Bricking Laser Printers (Even with HP Toner)

2025-03-10

HP's firmware update 20250209 for LaserJet MFP M232-M237 printers has caused widespread printing failures, even when using genuine HP toner. Users report Error Code 11 and a flashing toner light, despite cleaning contacts and reinstalling toner cartridges. The update, released March 4th, claimed security and general improvements, but users suspect it intentionally restricts functionality, causing significant frustration and financial losses for small businesses relying on these printers.

(arstechnica.com)

Hardware Printer Firmware Update

Google Pixel 4a Battery Overheating Recall

2025-03-10

Google has launched a battery performance improvement program for its Pixel 4a phone to address overheating risks. The Australian Competition & Consumer Commission confirmed the update introduces new battery management features to mitigate the risk of overheating, preventing potential fire or burn hazards. Not all Pixel 4a devices are affected; users can check their device's eligibility through a tool provided by Google. Affected users are eligible for a $100 Google Store discount code or a $50 payment.

(9to5google.com)

Hardware Battery Overheating

The 11-inch MacBook Air: Still a Surprisingly Good Buy in 2023?

2025-03-10

The author recounts their experience purchasing and using a used 2013 11-inch MacBook Air. Despite its modest specs (4GB RAM, 128GB SSD), the machine performs surprisingly well for everyday tasks. The author praises its portability, superior keyboard and port selection compared to the 12-inch Retina MacBook, and argues that the non-Retina display is perfectly acceptable. Ultimately, the author concludes that the 11-inch MacBook Air offers incredible value for its size and price, making it an ideal choice for users prioritizing portability and ease of use.

(morrick.me)

Hardware Ultraportable Value

Dissecting Canon's STM Lens Stepper Motor

2025-03-10

Canon's STM lenses utilize a unique 2-phase bipolar stepper motor with a permanent magnet rotor and a rotationally symmetrical stator, unlike the AFD stepper motor. The article first explains the general working principle of a stepper motor, then delves into the specifics of Canon's STM motor design. The motor uses two independent coils, energized in both directions to create varying magnetic polarities, driving rotor rotation. Full-step and half-step modes are briefly mentioned, but half-step mode isn't explored further due to autofocus systems prioritizing speed over precision.

(exclusivearchitecture.com)

Hardware Stepper Motor STM Lens

Orange Pi RV2: An Octa-Core RISC-V SBC for $30

2025-03-09

Orange Pi has launched its second RISC-V single-board computer, the RV2, featuring an octa-core Ky X1 processor with a 2 TOPS AI accelerator, starting at just $30. This upgrade from their quad-core model boasts enhanced performance, dual Gigabit Ethernet ports, and dual PCIe 2.0 x2 connectors. It also supports WiFi 6, Bluetooth 5.0, and a variety of interfaces, with 2GB, 4GB, and 8GB LPDDR4X memory options. While the Ky X1's single-core performance boost isn't groundbreaking, it offers excellent value for a RISC-V board in this price range.

(liliputing.com)

Hardware Single-board computer

Open-Source Wi-Fi MAC Layer for ESP32 Takes Flight

2025-03-09

An ambitious open-source project is underway to create a fully open-source Wi-Fi MAC layer for the popular low-cost ESP32 microcontroller. Currently, the ESP32's Wi-Fi MAC layer is closed-source, limiting security audits, feature enhancements, and interoperability. This project reverse-engineers the hardware registers and software, resulting in two open-source MAC layer implementations in C and Rust. One utilizes FreeRTOS tasks, while the other is a pure async Rust implementation built on Embassy. The goal is to enhance ESP32's security, functionality, and research accessibility, paving the way for features like standards-compliant mesh networking.

(esp32-open-mac.be)

Hardware

DIY Perks: Hacking an LCD Screen for OLED-Level Blacks

2025-03-08

Remember the rich blacks and vibrant colors of CRT TVs? DIY Perks shows how to achieve similar results with an LCD screen. By removing the backlight from an older LCD and using a de-wheeled DLP projector to project a high-res luminance map onto the back of the screen, they dramatically improve black levels and contrast. This clever hack bypasses the limitations of traditional LCD backlighting, producing an image comparable to OLED displays. A must-see for retro enthusiasts and anyone seeking superior image quality.

(hackaday.com)

Hardware LCD hack DLP projector high contrast

Real-time Home Occupancy Detection with S2

2025-03-06

This article details a real-time home occupancy detection system built using an AMG8833 infrared thermal imaging sensor, a Raspberry Pi, and the S2 streaming data platform. The system streams sensor data to S2, which is then used by a Next.js frontend to display a live heatmap. Simple image processing determines occupancy. S2's low cost and ease of use make this a budget-friendly solution, costing around $2 per month.

(s2.dev)

Hardware

The Curious Case of the Noisy 1670 Modem

2025-03-06

While testing a pair of VIC-20s connected via 1670 modems, the author discovered a peculiar noise emitted by the modems in dial mode. This noise isn't pulse dialing, nor is it a hardware malfunction; both modems, and one used back in 1988, exhibit the same behavior. The noise is a regular "pa-tink" sound occurring every 1.2 seconds. The author suspects the noise originates from the modem's local speaker, but hasn't determined if it's transmitted over the line. It remains an unsolved mystery, though functionally inconsequential.

(rachelbythebay.com)

Hardware modem noise

Sustainable Router Dev Kit Uses Recycled Fairphone 2 Hardware

2025-03-06

Belgian company Citronics has created a sustainable router development kit using the mainboard of the discarded Fairphone 2 smartphone. The kit, based on a Qualcomm Snapdragon 801 processor, features Ethernet, USB ports, and leverages the phone's existing 4G LTE, WiFi, and Bluetooth connectivity. Citronics calls this a "Circular Microcomputer," focusing on sustainability and using parts from e-waste. Pre-loaded with Alpine Linux, it also supports other Linux distributions. Citronics also partners to create custom gateways based on the Fairphone 2, used in applications like residential heating optimization and machine vision education. The dev kit, priced at €150, is aimed at professional prototyping and R&D, not consumers. Antennas are not included.

(www.cnx-software.com)

Hardware sustainable hardware dev kit

Tiny Ten: A 10-Watt, Ten-Band Amateur Radio Transceiver Built for the Backcountry

2025-03-06

Inspired by poor radio reception during a backpacking trip in Oregon's Cascade Mountains, W7PUA designed and built the "Tiny Ten," a lightweight, 10-watt, ten-band amateur radio transceiver. This Teensy 4.1-based project leverages the OpenAudio_ArduinoLibrary and boasts multiple modes (SSB, CW, AM, FM, FT8). Clever hardware design, including plug-in filter boards, minimizes weight and maximizes efficiency. Despite its compact size, the Tiny Ten delivers impressive receive sensitivity, dynamic range, and selectivity, exceeding 10 watts of output power on 10 meters. The article details its hardware architecture, software design, and performance testing, offering valuable insights into the design process and showcasing impressive DIY skills.

(www.janbob.com)

Hardware amateur radio

Fixing a Laser Meter's Light Guide with Aluminum Foil

2025-03-05

A laser distance meter consistently showed "Error 255", indicating a sensor issue. Disassembly revealed a poorly secured plastic light guide. Re-gluing failed, so the author ingeniously replaced it with aluminum foil, effectively resolving the error. However, a 10-12mm measurement error now exists, potentially due to the altered light path.

(lettieri.iet.unipi.it)

Hardware laser meter

Category: Hardware