David Volovskiy phát triển một bo mạch PCB tùy chỉnh thay thế hoàn toàn cho đồng hồ Casio G-Shock, tích hợp firmware mã nguồn mở mở rộng chức năng như đo bước chân, chạy game (Blackjack, Wordle), hiển thị pha mặt trăng, tính giờ mặt trời mọc/lặn và nhiệt kế. Dự án cung cấp công cụ mô phỏng web và hiển thị LCD, đồng thời kế thừa từ dự án Sensor Watch của Joey Castillo, với cộng đồng Discord hỗ trợ người quan tâm tham gia danh sách sản xuất.
Vì sao nên đọc: Lập trình viên nên đọc để khám phá cách kết hợp hardware đơn giản với firmware mở nguồn để tạo ra những ứng dụng thực tế, từ đó học cách tối ưu hóa thiết bị cũ bằng cách tái sử dụng và mở rộng chức năng.
Nguồn: https://hackaday.com/2026/06/23/a-custom-pcb-for-the-casio-g-shock. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.
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.

Linux 7.2 is removing two obsolete drivers from its source tree: the DTLK ISA speech synthesizer driver and the Applicom PROFIBUS driver. The Applicom driver was originally ported from SCO Unix in 1998, has had severe coding style issues, was broken for years in early Git history, and has no known active users. Later Applicom hardware only officially supports Windows and has been discontinued. The removals together eliminate approximately 19,500 lines of code, reducing future maintenance burden.
Micron CEO Sanjay Mehrotra has stated that the AI-driven global RAM and NAND shortage will persist through 2027 and only begin to improve gradually in 2028, with no clear timeline for supply catching up to demand. The shortage stems from major chip makers — Micron, Samsung, and SK Hynix — pivoting to serve hyperscaler data center demand, leaving consumer markets undersupplied. Micron posted record Q3 2026 revenue of $41.46 billion, a 346% year-on-year increase. The supply crunch is driving up prices for DDR5 RAM and SSDs, with downstream effects including higher console prices and the Steam Machine launching at $1,049.
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.
Orange Pi 6 is a new compact SBC (90x90mm) powered by the CIX P1 (CD8180) 12-core Arm Cortex-A720/A520 SoC with up to 32GB LPDDR5 RAM. Compared to the larger Orange Pi 6 Plus, it features 2.5GbE instead of 5GbE networking, drops LiPo battery support, and comes in a smaller form factor. Key specs include dual M.2 PCIe Gen4 x4 slots, multiple display outputs, a 28.85 TOPS NPU, and support for Debian, Ubuntu, Android, Windows 11, and OpenHarmony. Pricing starts at $239 for the 8GB model, reflecting the high cost of LPDDR5 RAM, making it significantly pricier than typical Orange Pi boards.

Iridium Communications has launched the 9604 module and development kit, a hybrid IoT platform combining satellite (SBD), LTE-M cellular, and GNSS into a single compact module (16×26×2.4 mm). Built on the u-blox SARA-R5 platform, it can reduce board space by over 60% versus discrete implementations. The module supports GPS, GLONASS, Galileo, and BeiDou, offers independent subsystem management for custom failover strategies, and provides a unified AT command interface with an SDK. It targets industrial monitoring, transportation, maritime, and remote asset tracking applications where terrestrial networks may be unavailable.
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.
Sonocotta's Louder ESP32 Mini is a compact open-source hardware board designed to retrofit old passive speakers with WiFi and Bluetooth connectivity. Built around the ESP32-S3 with 8MB PSRAM and a TAS5805M DAC/amplifier, it comes in two sizes (42×42mm and 52×52mm) and replaces the standard speaker terminal cup. It supports multiple firmware options including Squeezelite-ESP32 for Spotify Connect and AirPlay, Snapclient for multi-room audio, and ESPHome for Home Assistant integration. Priced at $15–$20, it's available on Lectronz and Tindie, with schematics and Gerber files published on GitHub.