Open-Source Hornet Nest Alarm Panel for Home Assistant and ESPHome

CrowdSupply recently featured the Hornet Nest Alarm Panel, a PoE-enabled security panel that integrates traditional wired alarm systems with modern smart home platforms like Home Assistant. Its open-source design provides flexibility and customization for enhancing home security systems. The panel allows for integration with smart home ecosystems using ESPHome, it supports straightforward configuration, enabling control […]

Вакуумное магнетронное напыление на дому

Привет, Хабр! Последнее время здесь появились очень интересные статьи по вакуумному и стеклодувному делу, вызывающие неподдельный интерес у публики. Как насчет двинуться дальше, и начать серию статей про изготовление микросхем на дому? Многолетнюю, разумеется. Я по другому не умею :)

Тут вам и легирование кремния, и фотолитография, и вакуумное магнетронное и термическое напыление металлов и оксидов на подложку.

Совершенно случайно мне подвернулись остатки от универсального вакуумного поста ВУП-4 и я решил с головой погрузиться в эту дорогую и сложную область инженерного дела. Вообще я не планировал напылять в этой серии, но меня уговорили.

Pico W5 is a Raspberry Pi Pico 2 W alternative with RP2350 MCU, dual-band WiFi 4, 8MB flash

The Pico W5 is a Raspberry Pi RP2350 development board providing an alternative to the official Raspberry Pi Pico 2 W with dual-band (2.4GHz/5GHz) WiFi 4 and Bluetooth 5.0 connectivity through a B&T BW16 wireless module. Besides dual-band WiFi, there are a few other small changes compared to the Raspberry Pi Pico 2 W, including a USB Type-C connector, a larger 8MB flash, and a Reset button. As far as I know, it’s the first RP2350 board with 5GHz WiFi, as other RP2350 boards with WiFi, such as the Challenger+ RP2350 WiFi6/BLE5 and Pimoroni Pico Plus 2 W, only support...

Olimex ESP32-P4-DevKit offers Ethernet, USB JTAG, MIPI DSI and CSI interfaces

Olimex ESP32-P4-DevKit is a compact development board powered by a 400 MHz ESP32-P4 general-purpose dual-core RISC-V microcontroller with a 10/100Mbps Ethernet RJ45 connector, a USB-C Serial/JTAG connector, MIPI DSI/CSI connectors for a display and a camera, GPIO headers and UEXT connector, Boot and Reset buttons, and a few LEDs. In some ways, it offers similar to the Waveshare ESP32-P4-NANO board we covered last month, but in a different form factor, and it lacks WiFi 6 connectivity and a USB Type-A connector. It’s also much more compact and cheaper than the official ESP32-P4-Function-EV-Board launched this summer, but again, with fewer features....

QuartzPro64 RK3588 Developer Board Now Available at $199.99

The QuartzPro64 is a developer board featuring the Rockchip RK3588 system-on-chip . It is designed for applications requiring high-performance computing, extensive connectivity, and flexible expansion options. Initially introduced in 2022, the board is equipped with an octa-core CPU comprising four ARM Cortex-A76 cores running at 2.4 GHz and four ARM Cortex-A55 cores at 1.8 GHz. […]

Scrolling Text Display PCB

This is an extended version of my scrolling text display based on four 8x8 LED dot-matrix displays. You can edit it using a keyboard, and it's controlled by an ATtiny85:

The PCB version of the Scrolling Text Display, based on an ATtiny85.

The earlier version was built on a breadboard, and though it worked perfectly, it wasn't very robust, and components tended to fall off if you dropped it. I've therefore designed a PCB for the circuit, and in the process made a few improvements.

I've put a lot of thought into designing this project so that it can be built by a parent...

Sonata v1.0 Supports CHERIoT Integration in Embedded Systems

lowRISC has released Sonata v1.0, the first stable and long-term iteration of its platform under the Sunburst project. Funded by DSbD and UKRI, Sonata is designed for embedded systems engineers to implement CHERIoT technology, enabling compartmentalization and enhanced memory safety. CHERIoT, based on CHERI research from the University of Cambridge and SRI International, builds on […]

Introducing the Omega2 Eval Boards

Today, we’re excited to introduce the Omega2 Eval Boards! The new Omega2 Eval Boards are built to streamline your experience with the Omega2 IoT modules – from the very first prototype to a final, production-ready device. By bringing nearly all of the Omega2’s capabilities together on a single, compact board, these Eval Boards make it easier than ever to prototype, develop, and ship your connected projects. For you, this means less time spent juggling different boards and expansions, and more freedom to focus on what matters most: bringing your ideas to life. By streamlining the entire process, the Eval Boards help you...

A Breakthrough In Soft Robotics?

https://invidious.privacyredirect.com/watch?v=ihq5YdyXba0;border=0

A few months back, an interesting YouTube video came to our attention titled, "Overview of stretchable Arduinos embedded in soft robots” published by the Faboratory at Yale University that presented a generalized method to translate two layer circuits into soft, stretchable forms. The video shows these really cool soft circuits being stretched out at strains upwards of 300%, which is incredible, but what really caught our eye was when some SparkFun red showed up in the video alongside other common open-source electronics. So we decided to do an interview with one of the researchers, Stephanie Woodman, a PhD student and...

Smooth Big Text with Hints

This article describes a simple way to add automatic smoothing and hinting to bitmapped characters, so you can use a standard 6x8 pixel character set to generate smooth double-sized characters on a graphics display:

Left: Double-sized characters plotted on a graphics display.
Right: The versions smoothed and hinted using the routine in this article. 

There are several low-cost colour TFT displays available that are ideal for displaying instrument readings and other data, but because of their high resolution, text in the standard 6x8 pixel character set is often too small to read comfortably. One solution is to use a character set defined...