Dual band 2.4G and 5G external antenna with UF.L connector now is available at olimex.com

We got in stock dual band WiFi antenna ANTENNA-WIFI-BT-2.4G-5G-U.FL which can be used with Espressif new WiFi6 Dual Band ESP32-C5 modules and chips. The antenna features are: It makes perfect addition to the existing ANTENNA-WIFI-BT-U.FL and the GSM, NB-IoT, LoRa antenna we have ANTENNA-GSM-U-FL

olimex
Posted at 2024-12-20 09:20:59 | Electronics | read on

Электровакуумные работы в домашней мастерской. Впаи в молибденовое стекло


Электрические вакуумплотные выводы — впаи, неотъемлемый и архиважный элемент любого электровакуумного прибора (ЭВП). Добавим: элемент сложный, ответственный, капризный и склонный к дефектам. Стёкла со спаиваемыми металлами должны иметь близкий КТР (коэффициент теплового расширения), иначе впай разрушится при нагреве или охлаждении. Электровакуумные стёкла при этом делятся на группы, именуемые по металлу, пригодному для впая — платиновая, молибденовая, вольфрамовая. Читать дальше →

[BabayMazay] Сергей
Posted at 2024-12-20 09:01:08 | Electronics | read on

T-Keyboard-S3 Pro 4-Key USB mechanical keyboard adds rotary encoder, support for daisy-chaining up to six keyboards

Last year, we featured the T-Keyboard-S3, a USB mechanical keyboard with ESP32-S3, and four mechanical keys each fitted with a 0.85-inch color display. The upgraded T-Keyboard-S3-Pro adds a rotary encoder and four magnetic interfaces on each side controlked by an STM32G030 MCU to daisy-chain the host keyboard with up to 5 slave keyboards in a 3×2 grid. Previously, we featured the ANAVI Macro Pad 12, Macro Pad 10, and Macro Pad 2 programmable keyboards. Feel free to explore those as well. LILYGO T-Keyboard-S3 Pro specifications: Wireless module – ESP32-S3-WROOM-1 used in the host model only MCU –  ESP32-S3R8 dual-core LX7...

CNX Software -- Embedded Systems News
Posted at 2024-12-20 04:39:56 | Electronics | read on

WeAct RP2350A_V20 is a cheap Raspberry Pi RP2350 board with up to 16MB flash

WeAct RP2350A_V20 may be the world’s cheapest Raspberry Pi RP2350 board around with a design similar to the official Raspberry Pi Pico 2, but featuring a black PCB, a Reset button, a USB-C port and offered with either 4MB or 16MB flash. WeAct is selling its RP2350 board for $3.47 (4MB) and $4.46 (16MB) respectively before shipping and potential taxes are taken into account. WeAct RP2350A_V20 specifications: SoC – Raspberry Pi RP2350A CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR Dual-core RISC-V Hazard3 @ 150 MHz Up to two cores can be used in any...

CNX Software -- Embedded Systems News
Posted at 2024-12-20 03:48:48 | Electronics | read on

$59 Voice “Preview Edition” adds an offline smart speaker to your Home Assistant server

Nabu Casa has just launched the Home Assistant Voice Preview Edition, a little ESP32 device with an XMOS XU316 audio processor, a dual-microphone array, an internal speaker, and a 3.5mm audio jack, that adds offline smart speaker functions to your Home Assistant server through WiFi. If your Home Assistant server is powerful enough, voice processing will be done directly on your local hardware using Home Assistant Voice software, but with lower-end hardware like a Raspberry Pi 4, audio processing can be done via a privacy-focused cloud instead. The solution also supports expansion thanks to a Grove connector on the bottom...

CNX Software -- Embedded Systems News
Posted at 2024-12-19 21:00:00 | Electronics | read on

What Power Switch Do I Need?

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

“With great power comes great responsibility.” But which great power works best for my project? We take a deep dive into SparkFun’s 3 latest power switches, the Qwiic Power Switch, Soft Power Switch USB-C, and Soft Power Switch JST.


Comparison Table


Feature Qwiic Power Switch Soft Power Switch USB-C Soft Power Switch JST ...

SparkFun Electronics
Posted at 2024-12-19 17:30:23 | Electronics | read on

(Updated) Luckfox Reveals First Boards Featuring Rockchip RK3506G2 Triple-Core Processors with Linux Support

The Luckfox Lyra series introduces the Rockchip RK3506G2 processor, a triple-core 32-bit design with three Cortex-A7 cores and one Cortex-M0 core. These boards target IoT devices, smart audio, smart displays, and industrial control, supporting Buildroot and Ubuntu 22.04 for flexible software deployment. According to the  RK3506G2 datasheet, this processor integrates 128MB of DDR3 memory and […]

linuxgizmos.com
Posted at 2024-12-19 15:13:21 | Electronics | read on

Raspberry PI RP2350 PICO2 W with WiFi and Bluetooth 5.2 in stock

Raspberry Pi PICO2 W is successor of the PICO W with the newer more powerful RP2350 processor. It keeps the same pinout as the original PICO W. We offer the standard RP2350-PICO2-W and version with soldered headers RP2350-PICO2-W-HDR.

olimex
Posted at 2024-12-19 13:23:43 | Electronics | read on

Free Stuff - June 2024

The belated June 2024 recipient for the Great Scott Gadgets Free Stuff Program is Evan Metzinger. Evan is the president of the Cybersecurity club at Mt. San Antonio college in Walnut, California in the US. We will be sending Evan a HackRF One so he and his club can get some hands on experience with signals processing and participate in wireless capture the flag competitions.

Great Scott Gadgets
Posted at 2024-12-19 12:00:00 | Electronics | read on

AAEON’s first Arm-based SMARC 2.1 module is NXP i.MX 8M Plus-powered uCOM-IMX8P system-on-module

AAEON has released its first Arm-based SMARC 2.1 compliant CPU module, the uCOM-IMX8P built on the NXP i.MX 8M Plus SoC and offered with up to 4GB RAM, up to 128GB eMMC flash. and support for a range of interfaces such as dual Gigabit Ethernet, USB 3.0, PCIe 3.0, and more. The 82mm x 50mm SMARC system-on-module is designed for industrial use with a -40°C to 85°C operating temperature range, Time Sensitive Networking (TSN) support, CAN Bus, MIPI interfaces, and more. That makes it suitable for applications such as predictive maintenance, process optimization, and automated control systems with cameras and...

CNX Software -- Embedded Systems News
Posted at 2024-12-19 09:51:34 | Electronics | read on
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Однажды китайский ученый Ли Хунь Янь обнаружил некоторую незначительную, однако, существенно отличающуюся от фона корреляцию между количеством псилоцибина потребляемого корфуцианскими медузами и характером передвижения оных по стенкам четырехсотлитровго шарообразного аквариума, установленного в лаборатории по случаю празднования сто второго полугодичного затмения от начала новой эры Сингулярного Прорыва. Недолго думая, Ли Хунь Янь приделал к щупальцам медуз источники излучения в видимом диапазоне но с разной длинной волны, заснял весь процесс шестью камерами с 48 часовой выдержкой, симметрично расставив последние вокруг сосуда, где резвились подопытные и через неделю собрал прелюбопытнейший материал, который, в свою очередь, лег в основу фундаментального труда, ныне известного, как теория полутретичных n-многообразий простой метрики Ли Хунь Янь, с которой (с некоторыми упрощениями и оговорками) я, по мере сил, постараюсь познакомить любопытного и пытливого читателя.

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