$15 STM32U575 development board features FPC display connector, microSD card slot, two 48-pin GPIO headers

A few days ago, we looked at the WeAct Studio STM32U585CIU6 development board, which features an ultra-low-power STM32U5 Cortex-M33 MCU and was added to MicroPython v1.28. If you’re looking for another STM32U5-based option, especially for compact UI projects, Maker Go now offers an STM32U575 board with a display connector, a microSD card slot, and many more GPIOs While the STM32U585 on the WeAct board features cryptographic accelerators, the STM32U575VGT6 MCU on the Maker Go board is closely related and still offers the same high-performance Cortex-M33 core running at 160 MHz, along with ultra-low-power capabilities. This new board also adds 8MB...

Bee Write Back – A Raspberry Pi Zero 2 W-based DIY writerdeck with 5.5-inch OLED and mechanical keyboard

Based on Raspberry Pi Zero 2 W, the Bee Write Back writerdeck is another DIY project that should be relatively easy to reproduce, since it relies on off-the-shelf parts, including an OLED and mechanical key switches and caps, as well as a 3D printed enclosure. Simon (shmimel) had trouble falling asleep and found out that journaling helped him a lot, but he was not so fond of writing in a physical journal. So instead, he created the Bee Write Back journal/writerdeck as a distraction-free writing machine, and the result looks pretty neat. Bee Write Back key components: Raspberry Pi Zero...

Электровакуумные геттеры. Первые металлические газопоглотители

На пути изготовления даже весьма простых электровакуумных приборов (ЭВП) неумолимо встаёт немало неочевидных технологических трудностей, например, впитанные в электровакуумные материалы, растворённые, «окклюдированные» газы. Газы, удерживающиеся внутри металлов, стекла, слюды весьма прочно при условиях обычных, и бодро выползающих наружу при понижении давления и нагреве — обычном рабочем состоянии внутренностей электронных ламп, из-за чего подготовка для них материалов и откачка существенно усложняется. Первые радиолампы опустошали часами и даже десятками часов непрерывной работы сложного и энергоёмкого оборудования (т. н. светлая откачка). Внутренние же ламповые газопоглотители — геттеры позволили колоссально упростить и удешевить откачку ЭВП, стабилизировать их параметры и удлинить время жизни. Механизм происходящего,...

Feature-rich Raspberry Pi CM5 carrier board offers dual Ethernet, quad RS485, 4G LTE/5G connectivity, and more

Waveshare CM5-ETH-RS485-4G-BASE Raspberry Pi CM5 carrier board offers plenty of features such as GbE and 2.5GbE RJ45 jacks, optional 4G LTE/5G connectivity, terminal blocks for RS485, relay, and digital outputs, and more. The board also features a 4K-capable HDMI output, an M.2 Key-M socket for an NVMe SSD or AI accelerator, two MIPI DSI/CSI connectors, ten status and user LEDs, and a wide 7-36V DC power input. Waveshare CM5-ETH-RS485-4G-BASE specifications: Supported system-on-modules – All Raspberry Pi Compute Module 5 variants with up to 16GB RAM, 64GB eMMC flash, Wireless Storage Optional NVMe SSD via M.2 Key-M socket MicroSD card socket...

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…

F&S M.2 AI Accelerator Uses NXP Ara-240 for Edge Inference Workloads

F&S Elektronik Systeme has introduced an M.2 AI accelerator based on the NXP Ara-240, designed to offload inference workloads from embedded systems. It targets edge applications requiring low-latency processing, including machine vision, multimodal inference, and real-time analytics. The accelerator delivers up to 40 TOPS of AI performance through the Ara-240 architecture, which integrates multiple neural […]

Raspberry Pi SBC gets (analog and) digital radio HAT with AM, FM, DAB, DAB+, HD radio

Yesterday, I wrote about a 2-year-old open-source hardware ESP32-based DAB+ receiver project, but it turns out there’s also a digital radio project for the Raspberry Pi that was released about three weeks ago. Raspiaudio’s Digital Radio V1 HAT adds AM/FM, DAB/DAB+, and HD Radio support to any Raspberry Pi SBC with a 40-pin GPIO header and is supported by CLI or web-based software for configuration and control.   Digital Radio V1 HAT specifications: Supported SBCs – Raspberry Pi Zero 1/2, Raspberry Pi 4/5, etc… Digital radio receiver chip – Skyworth Si4689-A10 (see product brief) Worldwide FM band support (76 to...

Open-source hardware DAB+ receiver combines ESP32 SoC with Skyworks SI4684 digital radio chip

When I wrote about a DIY ESP32-S3 internet radio last week, “raspbeguy” commented he’d rather choose an ESP32-based DIY DAB+ receiver kit, such as the one offered by the PE5PVB project based on a Skyworth SI4684 receiver. I first heard about DAB (Digital Audio Broadcast) in 2003 when we considered adding it to a CD player. It’s basically the digital equivalent of analog FM/AM radios, and I haven’t heard much about it since DAB and the “new” DAB+ standard are mostly a European story (see coverage map below). PE5PVB’s open-source hardware DAB receiver might still be worth a look. PE5PVB’s...

Sipeed T256s – A USB thermal camera with 256×192 LWIR sensor, 640×480 AI super resolution

Sipeed T256s is a portable USB thermal camera equipped with a native 256×192 Long-Wave Infrared (LWIR) sensor and a built-in 2.4 TOPS NPU for hardware-level AI super-resolution (ISR) up to 640×480 resolution in real time, effectively suppressing image noise without external software. The UVC camera device supports standard output (Y16 raw and MJPEG) and features both male and female USB Type-C ports on opposite ends for connection to PCs and smartphones. It also includes a 1.69-inch touchscreen for standalone operation with live viewing, palette switching, hotspot tracking, and image capture. Other features include an optional macro lens (~5 cm focus)...

RealSense ID Pro F500 Combines Depth Sensing and On-Device Biometrics

RealSense has introduced the RealSense ID Pro F500, a facial authentication module designed for access control, kiosks, and identity verification systems. The solution combines depth sensing, vision processing, and local computation to support secure biometric authentication without relying on cloud-based processing. The module integrates an active stereo depth system with a neural network pipeline for […]