Jean-Luc Aufranc (CNXSoft), Author at CNX Software

June 12, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

LILYGO MySondy GO LoRa32 board tracks radiosondes (weather balloons) with a 433MHz LoRa module

“LILYGO MySondy GO LoRa32” is a small ESP32-PICO-D4 board with a 433 MHz LoRa module and a 0.96-inch OLED designed to track (RS41) radiosondes, which are units attached to weather balloons used to collect meteorological data like temperature, humidity, and atmospheric pressure. It looks to be an older TTGO T3 board with a 433 MHz LoRa32 module from the company preloaded with the MySondo firmware that allows hobbyists in the amateur radio and weather enthusiast communities to track weather balloons and potentially recover them. LILYGO MySondy GO LoRa32 specifications: SiP – Espressif Systems ESP32-PICO-D4 system-in-package with ESP32 dual-core Xtensa processor @ 240 MHz, 2.4GHz Wi-Fi and Bluetooth 4.2 dual-mode, 4MB flash LoRa module – LORA32 RF Transceiver – Semtech SX1268 connected over SPI to the ESP32 SiP Frequency – 433 MHz (The T3 board has options for 868 and 915 MHz, which I suspect are not suitable for radiosondes) Tx […]

June 12, 2025June 12, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

PCIe 7.0 specification released with up to 512GB/s bi-directional data rate

The PCIe 7.0 specification has been released, offering a data rate of up to 128GT/s, or a bi-directional transfer rate of 512GB/s in x16 configuration. This doubles the speed of PCIe 6.0 specification released in 2022, reaching up to 64GT/s data rate, or 256GB/s bi-directional transfer rates. PCI-SIG says the PCIe 7.0 specification targets data-intensive applications such as AI/ML, 800 Gbps Ethernet, cloud, and Quantum computing. Work on PCIe 8.0 has started, likely aiming for 256GT/s and a 2028 release date. Like PCIe 6.0, PCIe 7.0 utilizes PAM4 (Pulse Amplitude Modulation with 4 levels) signaling and Flit-based encoding. It also provides improved power efficiency and maintains backwards compatibility with previous generations of PCIe technology. New specifications are released regularly, and since the introduction of PCI in 1992 with a 013GB/s data rate, the PCI/PCIe bandwidth has roughly doubled every three years, as illustrated in the chart below. Although it typically […]

June 11, 2025June 11, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Quantum Tiny Linux SBC features an Allwinner H3 SoC, WiFi, a small Display, and more

Made by a Chinese engineer and content creator Zhihui Peng, the “Quantum Tiny Linux Development Kit” is a small SBC that’s smaller than an ID photo, powered by an Allwinner H3 SoC, and equipped with 512MB of RAM and a 16GB eMMC flash. It’s a design with a 31x22mm CPU module with an M.2 edge connector and a 40x35mm carrier board with a microSD card slot, WiFi 4 and Bluetooth 4.0 wireless module, a TFT display, two USB 2.0 ports, a 6-axis motion sensor, and a few buttons. Quantum Tiny specifications: Quark-N SoM SoC – Allwinner H3 CPU – Quad-core Cortex-A7 @ 1GHz GPU – Arm Mali400 MP2 GPU System Memory – 512MB LPDDR3 RAM Storage – 16GB eMMC flash M.2 edge connector with Ethernet, SPI, I2C, UART, Reusable GPIO, MIC, LINEOUT Dimensions – 31 x 22mm (6-layer PCB) Temperature Range – 0 to 80°C Atom-N Expansion Board M.2 socket […]

June 11, 2025June 11, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

Quectel KCM0A5S Wi-SUN FAN module targets large IoT deployments for Smart Cities and Smart Agriculture

Quectel KCM0A5S is a Wi-SUN FAN module based on Silicon Labs EFR32FG25 Arm Cortex-M33 Sub-GHz wireless MCU, designed for applications such as street lighting, precision agriculture, industrial IoT, smart meters, and Smart Cities. Wi-SUN (IEEE 802.15.4g) is an LPWAN (Low Power Wide Area Network) standard leveraging IPv6 mesh networking for large-scale IoT deployments in Smart Cities and Smart Agriculture. The KCM0A5S module specifically supports the Wi-SUN Field Area Network (FAN) 1.1 protocol and operates across the 470–928 MHz frequency range. The module can act as a leaf node, a router, or a border router when paired with a Linux host in RCP (Radio Co-Processor) mode. Quectel KCM0A5S specifications: Wireless SoC – Silicon Labs EFR32FG25 CPU core – Arm Cortex-M33 core @ 97.5 MHz with DSP instruction and floating-point unit for signal processing Memory – 256 KB RAM data memory Storage – About 2MB flash program memory Radio – Sub-GHz radio operation […]

June 11, 2025June 12, 2025 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

MeLE Quieter4C fanless mini PC is now sold without OS for $139.99 and up

The MeLE Quieter4C fanless mini PC, powered by an Intel Processor N100 SoC coupled with 8GB RAM and 128GB eMMC flash, is now available for $139.99 on Amazon without Windows 11 or any other OS pre-installed, after a $20 discount code is applied. Most mini PCs, except barebone models, ship with Windows 11 pre-installed, which isn’t ideal for users who prefer Linux or BSD distributions, as they pay extra for an unused Windows license. The Quieter4C mini PC was launched in 2023 with Windows 11 Pro, but the company is now offering the 8GB RAM/128GB eMMC flash model and other variants (see below) without OS for people who want to install their own OS. MeLE Quieter4C specifications: SoC – Intel Processor N100 CPU – Quad-core Alder Lake-N processor @ up to 3.4 GHz (Turbo) with 6MB cache GPU – 24EU Intel HD graphics @ 750 MHz TDP: 6W System Memory […]

June 10, 2025June 11, 2025 by Jean-Luc Aufranc (CNXSoft) - 15 Comments

Adapter allows users to connect an M.2 NVMe SSD to a microSD Express card slot

The SD Association released the SD 7.1 standard with support for cards compliant with the microSD Express standard, enabling SSD-like performance on microSD cards by using a PCIe/NVMe interface, and more recent updates to the standard even enable speeds of up to 2GB/s. Saying that adoption has been slow would be an understatement, but things have changed recently, thanks to the introduction of the Nintendo Switch 2 portable game console, the first mainstream device to support the new standard. NVNT has had fun with it by designing a microSD Express to M.2 NVMe adapter (SDEX2M2) for the Nintendo Switch 2 or other devices supporting the microSD Express standard. The board design is pretty simple because it simply routes the PCIe signals from an M.2 NVMe 2230 SSD to the microSD Express connector. Three components can be found on the board: an M.2 2230 M-socket, a 220Ω ferrite bead, and an […]

June 10, 2025 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

$30+ Orange Pi R2S octa-core RISC-V router board features 2x 2.5GbE, 2x GbE, 2x USB ports

Orange Pi has released two RISC-V boards so far: the Orange Pi RV with a StarFive JH7110 quad-core SoC, and the Orange Pi RV2 with a Ky X1 octa-core processor, either a clone of the SpacemIT K1/M1 SoC or one with different CPU markings. The third RISC-V board from the company, named Orange Pi R2S, also features a Ky X1 RISC-V SoC, but is designed for headless and networking applications with two 2.5GbE ports, two GbE ports, and two USB 3.0/2.0 ports, and not much else. Orange Pi R2S specifications: SoC – Ky X1 CPU – 8-core X60 RISC-V (RV64GCVB) processor @ 1.6 GHz GPU – Imagination IMG BXE-2-32 @ 819 MHz with support for OpenGL ES3.2, Vulkan 1.3, OpenCL 3.0; 20 GFLOPS VPU H.265, H.264, VP8, VP9, MPEG4, MPEG2 decoder up to 4K @ 60fps H.265, H.264, VP8, VP9 encoder up to 4K @ 30fps Support simultaneous processing 1080p60 […]

June 10, 2025June 11, 2025 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

GL.iNet Flint 3 (GL-BE9300) is an affordable tri-band WiFi 7 router with 5 2.5GbE ports

The GL.iNet Flint 3 (codenamed GL-BE9300) is an affordable tri-band WiFi 7 BE9300 router with five 2.5GbE RJ45 ports supporting 10Gbps aggregation, and now available for pre-order for $119 to $159. It follows the lower-end GL.iNet Slate 7 (GL-BE3600) WiFi 7 dual-band travel router introduced a few months ago. The tri-band WiFi 7 router is powered by a 1.5 GHz quad-core Qualcomm processor coupled with 1GB RAM and 8GB eMMC flash for the OS, features a USB 3.0 port for smartphone tethering or cellular dongle, and supports up to 680 Mbps VPN throughput using WireGuard or OpenVPN. Other features include AdGuard Home, failover, load balancing, and more. GL.iNet Flint 3 specifications: CPU – Qualcomm quad-core @1.5 GHz; unamed, but likely Qualcomm IPQ5332 Memory – 1 GB DDR4 Storage – 8 GB eMMC flash Networking WiFi 7 Protocol – IEEE 802.11a/b/g/n/ac/ax/be Wi-Fi Speed – 688Mbps (2.4GHz), 2882Mbps (5GHz), 5765Mbps (6GHz) 4x […]