Reflective LCD Slabtop Terminal Runs Homebrewed Solar OS

RP2350B bells&whistles development board features on-board RP2040 debugger, HDMI, and microSD card slot

Bảng phát triển RP2350B Bells&Whistles tích hợp sẵn bộ gỡ lỗi RP2040 (Picoprobe), cổng HDMI (qua PicoDVI), khe cắm thẻ microSD, PSRAM 8MB tùy chọn, flash SPI 4MB, 46 chân GPIO và hai cổng USB-C. Bo mạch hỗ trợ nguồn mở (KiCad, sơ đồ trên GitHub) với giá 29,95 USD trên Tindie.

Lập trình viên muốn phát triển ứng dụng trên RP2040 nhưng gặp khó khăn với việc debug và mở rộng hệ thống cần tìm hiểu cách tích hợp RP2350B để tiết kiệm chi phí và tăng hiệu năng với các tính năng như debug built-in, HDMI, và lưu trữ MicroSD.

A BIOS For Your ESP32-C6

Rompass đã phát triển một firmware tương tự BIOS cho vi điều khiển ESP32-C6, cung cấp bootloader và lớp API hỗ trợ tải động các chương trình từ RAM, thậm chí qua mạng. Dự án thể hiện xu hướng xóa nhòa ranh giới giữa vi điều khiển và bộ vi xử lý, xu hướng này sẽ tiếp tục khi các bộ xử lý ứng dụng mạnh mẽ như ESP32-P4 trở nên phổ biến.

Lập trình viên ESP32-C6 nên đọc để khám phá cách mở rộng khả năng quản lý khởi động và chạy ứng dụng động từ RAM hoặc mạng, giúp tối ưu hóa hiệu suất và linh hoạt cho các dự án yêu cầu tính linh hoạt cao hơn.

Your router's WPA3 security is breaking your smart home, and here's what to do about it

WPA3-only or WPA2/WPA3 mixed mode on modern routers frequently causes connection failures for smart home devices, which largely still rely on WPA2-only hardware. The mixed mode overwhelms the limited processing power of older IoT devices, leading to handshake failures and intermittent disconnections. The recommended fix is to create a dedicated 2.4GHz WPA2-only SSID for IoT devices while keeping a separate WPA3-only network for modern devices. To harden the less secure WPA2 network, use WPA2-PSK with AES, disable WPS, set a strong password, and disable remote management.

OpenC6 BIOS project brings PC-like firmware to ESP32-C6 MCU with network boot and OTA update support

OpenC6 BIOS is an open-source project that brings PC BIOS-like architecture to the ESP32-C6 microcontroller. Instead of combining hardware setup and application code into a single firmware image, it separates the base system from application payloads (2–10 KB). Key features include dynamic CPU frequency scaling, a System Call Interface (ABI) for Wi-Fi/crypto/math access without full ESP-IDF, PXE-like network boot over Wi-Fi, A/B OTA updates with rollback, a web-based BIOS setup interface, LP-Core health monitoring using the ESP32-C6's low-power RISC-V core, and Aura Sync RGB support. The project targets ESP32-C6 boards with at least 8MB flash and is available on GitHub under the MIT license.

Cyber Resilience Act, From Silicon to Systems, WBG Semiconductor Partnerships: Embedded Week Insights

A weekly roundup from Embedded covering three main themes: the EU Cyber Resilience Act's first hard deadline arriving September 11, 2026 and its implications for manufacturers; the future of embedded engineering as system complexity outpaces traditional workflows; and partnerships announced at PCIM Europe to accelerate SiC and GaN wide-bandgap semiconductor adoption. Additional product highlights include a certified secure mobile chip, a hybrid IoT module combining satellite/LTE-M/GNSS, a GaN-based solar microinverter reference design, and a 4D area scanner for industrial inspection.

A More Convenient IButton Reader

Geoffrey Wells designed ChillPoint, a handheld iButton reader built around an ESP32-C6 microcontroller, aimed at modernizing cold chain logistics data retrieval. The device uses a 1-Wire probe to read iButton temperature data loggers on contact, stores data on internal flash, and hosts a web UI over its own WiFi access point for easy access from any smartphone, tablet, or laptop. Both hardware and software will be open source, with a CrowdSupply campaign planned for release.

Thread took years to fix what Zigbee got right from day one

Thread was marketed as the protocol to end smart home fragmentation, but its early architecture created a worse problem: competing isolated mesh networks from Apple, Google, and Amazon that couldn't share credentials or heal across vendor boundaries. Zigbee, by contrast, uses a single hardware coordinator as the sole trust center, making split meshes structurally impossible. Thread also carries heavier IPv6 overhead compared to Zigbee's lightweight packets, hurting battery life on cheap sensors. Thread 1.4.0 (2025) finally mandated open border router syncing, achieving the baseline stability Zigbee had from day one. The takeaway: corporate tribalism and over-engineering delayed Thread's promise, while Zigbee's simpler centralized design proved more robust in practice.