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.
Vì sao nên đọc: 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.
Nguồn: https://www.cnx-software.com/2026/06/24/rp2350b-bellswhistles-development-board-features-on-board-rp2040-debugger-hdmi-and-microsd-card-slot. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.
Radxa Cubie A5E sở hữu phần cứng ấn tượng (4GB LPDDR4, 2x Gigabit Ethernet, NVMe onboard, USB 3) với giá cạnh tranh như Raspberry Pi 4B, nhưng trải nghiệm thực tế lại gây thất vọng do thiếu hỗ trợ phần mềm: chỉ có image Debian 11 lỗi thời, Docker không hoạt động, NVMe/USB 3 phải cấu hình thủ công, cài Armbian làm HDMI hỏng. Bài viết khuyên nên chọn Raspberry Pi thay vì mất thời gian khắc phục lỗi trên nền tảng SBC ít hỗ trợ.
Nếu bạn đang tìm kiếm một board SBC với hiệu suất cao nhưng gặp khó khăn với các vấn đề về tương thích phần mềm và hỗ trợ cộng đồng, bài viết này sẽ giúp bạn phân tích sự khác biệt giữa Radxa Cubie A5E và các giải pháp hiện tại, từ đó quyết định liệu nó phù hợp với nhu cầu thực tế của bạn.
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.
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.
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.
Running Pi-hole on a Raspberry Pi Zero is one of the easiest ways to set up network-wide ad blocking at home. The board is cheap, low-power, and requires minimal setup — flash an image, install Pi-hole, and point your router's DNS at it. However, the Pi Zero lacks built-in Ethernet, meaning DNS runs over Wi-Fi unless you add a USB Ethernet dongle and adapter, which undermines the device's simplicity and reliability. MicroSD storage is another long-term concern. The Pi Zero is a great entry point for learning DNS filtering, but once it becomes core household infrastructure, upgrading to a Pi 4, mini PC, or LXC container on existing hardware offers better reliability, real Ethernet, and more robust storage.

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.
An old Android phone running Termux can serve as a capable home server that outperforms a Raspberry Pi in several ways. The phone's UFS storage is significantly faster than microSD cards commonly used in Pi setups, and even older flagship Android chips tend to be more powerful than typical SBC processors. Setup involves installing Termux, disabling battery optimization, and assigning a static IP. Services like Jellyfin, Tailscale, ad-blockers, file servers, and lightweight databases run well. The main caveat is battery longevity when kept plugged in constantly, which a smart plug can help manage.
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.