Author: Jean-Luc Aufranc (CNXSoft)

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
Posted on by Jean-Luc Aufranc (CNXSoft) - 17 Comments on Comparison of Raspberry Pi 5 with 2GB and 8GB RAM – Hardware, benchmarks, and power consumption

Comparison of Raspberry Pi 5 with 2GB and 8GB RAM – Hardware, benchmarks, and power consumption

Raspberry Pi 5 2GB vs 8GB RAM

The Raspberry Pi 5 with 2GB RAM was launched last week, and since I got a sample for review, I decided to compare it to the Raspberry Pi 5 with 8GB RAM to see if I could find any noticeable differences between the two boards. I’ll start with a visual inspection to show differences on the PCBA, then check system information, run some benchmarks, check power consumption, and finally try to open as many tabs in Firefox until the 2GB RAM is filled and the system becomes unusable. Raspberry Pi 5 2GB vs Raspberry Pi 8GB – visual inspection We should first have a quick look at the boards and packages there’s no obvious difference apart from seeing 2GB RAM and 8GB RAM on the respective packages. But if we look closer, we can see the resistors for memory capacity detection are in different locations for “2G” and “8G”, and […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Flexduino is an Arduino UNO clone made of a flexible PCB

Flexduino is an Arduino UNO clone made of a flexible PCB

Flexduino

YouTuber “EDISON SCIENCE CORNER” has designed yet another Arduino UNO clone but with a twist as the board is made out of a flexible PCB. Companies like JLCPCB, PCBWay, and others have been offering flexible PCB manufacturing services for a while, mostly for flat cables or small boards that need to fit around a case, but the Flexduino is a complete Arduino UNO clone made of a flex PCB, and it looks rather cool. The flexible Arduino board does work as shown with the RGB LED and power LED in the photo above and YouTube video below, but its usefulness is rather limited, and some corners had to be cut as for instance there’s no ground plane. Nevertheless, it’s a nice demo of flexible PCB technology.  The video on the EDISON SCIENCE CORNER channel provides a short demo, shows how the PCB was designed (EasyEDA), and go through the ordering […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on Review of Napcat wireless NVR with solar-powered security cameras

Review of Napcat wireless NVR with solar-powered security cameras

Napcat solar-powered wireless NVR review

After I reviewed the NapCat smart video doorbell last June, the company asked me to review a wireless NVR with solar-powered security cameras and I understood I would receive a kit with four solar-powered cameras and an NVR with storage preinstalled. In this review, I’ll go through an unboxing, a quick teardown of the NVR, the installation process, and my experience with the Napcat NVR user interfaces (connected to HDMI) and the Napcat Life Android app which I also used with the video doorbell. Napcat wireless NVR N1S22 kit unboxing The package I’ve received reads “N1S22” model of a “Solar-powered Security Camera System” and is quite smaller than I expected. One reason for the small size is that my kit only comes with two cameras instead of four, and the company also did a good job of making everything take as little space as possible. On the net, you’ll see […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Arduino Core for ESP32 gets a Zigbee wrapper library

Arduino Core for ESP32 gets a Zigbee wrapper library

Arduino ESP32 Zigbee

Some of the newer Espressif Systems wireless SoCs such as the ESP32-H2 and ESP32-C6 support Zigbee through their built-in 802.15.4 radio. It’s been working since the release of the ESP-IDF 5.1 framework along with the ESP-Zigbee-SDK for a while, but Arduino support was less straightforward. But this is about to change as an Espressif engineer nicknamed P-R-O-C-H-Y has recently added a Zigbee wrapper library for the ESP-Zigbee-SDK to Arduino Core for ESP32 that works with ESP32-C6 and ESP32-H2 as standalone nodes and other SoC can be used as radio co-processor attached to an RPC (802.15.4 radio layer). The wrapper library currently supports the following: Zigbee classes and all Zigbee roles Zigbee network scanning Allow multiple endpoints on the same Zigbee device (not tested yet) Supported Home Assistant devices On/off light + switch Color Dimmable light + switch Setting Manufacturer and model name Other tasks currently planned include supporting “Temperature sensor […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 15 Comments on Allwinner H728 octa-core Cortex-55 SoC powers $40+ X96Q PRO+ Android 14 TV box

Allwinner H728 octa-core Cortex-55 SoC powers $40+ X96Q PRO+ Android 14 TV box

Allwinner H728 TV box

X96Q Pro+ is an Android 14 TV box powered by the new Allwinner H728 octa-core Cortex-A55 SoC with a Mali-G57-MC1 GPU, and a 4Kp60 / 8Kp24 H.265 and VP9 4Kp60 video decoder that looks very similar to the Allwinner T527 AIoT SoC. The TV box ships with 4GB RAM and 32GB eMMC flash by default, and features an HDMI 2.0 port outputting up to 4K at 60 Hz, a 3.5mm audio jack, an optical S/PDIF output, a gigabit Ethernet port, WiFi 6 and Bluetooth 5.0 connectivity, and a few USB ports. X96Q Pro+ specifications: SoC – Allwinner H728 CPU – Octa-core Arm Cortex-A55 processor in two clusters of four cores four cores GPU – Arm Mali-G57 MC1 GPU VPU Video decoder H.265 up to 4Kp60 or 8Kp24 VP9 up to 4Kp60 H.264 BP/MP/HP up to 4Kp30 Multi-format 1080p60 VP8, MPEG-1/2 SP/MP, MPEG-4 SP/ASP, AVS+/AVS JIZHUN Video encoder: H.264 up to […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 9 Comments on DC-ROMA RISC-V Pad II octa-core RISC-V tablet can be pre-ordered for $149 and up

DC-ROMA RISC-V Pad II octa-core RISC-V tablet can be pre-ordered for $149 and up

DC-ROMA RISC-V Pad II tablet

DeepComputing DC-ROMA RISC-V Pad II is a 10.1-inch tablet based on the same SpacemIT K1 octa-core 64-bit RISC-V processor found in the DC-ROMA RISC-V Laptop II introduced a few months ago, as well as in the MILK-V Jupiter mini-ITX motherboard. The RISC-V tablet features up to 16GB LPDDR4, 128GB eMMC flash, a 10.1-inch capacitive touchscreen display with 1920×1200 resolution, a 5MP rear camera, a 2MP webcam, a USB-C port for peripherals and/or an external display, and a 6,000 mAh battery. DC-ROMA RISC-V Pad II specifications: SoC – SpacemiT K1 CPU – 8-core X60 RISC-V processor @ up to 2.0 GHz GPU – Imagination IMG BXE-2-32 with support for OpenCL 3.0, OpenGL ES3.2, Vulkan 1.2 VPU – H.265, H.264, VP9, VP8 4K encoding/encoding NPU – 2.0 TOPS AI accelerator RVA 22 Profile RVV 1.0 compliant System Memory – 4GB, 8GB or 16GB LPDDR4 Storage 64GB or 128GB eMMC 5.1 flash MicroSD […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on DeskPi RackMate T1 is a U8 desktop rack designed for Raspberry Pi, NVIDIA Jetson, mini-ITX motherboards, and more

DeskPi RackMate T1 is a U8 desktop rack designed for Raspberry Pi, NVIDIA Jetson, mini-ITX motherboards, and more

Rackmount for Raspberry Pi 4, Jetson Nano

DeskPi RackMate T1 is a U8 desktop rack especially suited to SBC users with support for Raspberry Pi SBCs, NVIDIA Jetson developer kits, Raxa ROCK 5B pico-ITX SBC, mini-ITX motherboards, and more. The RackMate T1 chassis is made of aluminum alloy and acrylic frame and its 8U form factor (406 (H) x 280 (L) x 200 (W) mm) allows it to be placed either on a desk or a floor of a home lab. DeskPi RackMat T1 highlights: Mounting holes on all trays Raspberry Pi 3B, 3B, +4B, and DeskPi aux board bring HDMI and USB-C to the front (M2.5 screws) – star holes NVIDIA Jetson Nano developer kit (M2.5 screws) – square holes Radxa ROCK 5B pico-ITX SBC (M3 screws) – round holes 2.5-inch drives Screw kits with M2.5 screws and standoffs, M3 screws, and a screwdriver Dimensions – 406 x 280 x 200 mm (H x L x […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 21 Comments on ODROID-M2 low-profile SBC features Rockchip RK3588S2 SoC, up to 16GB LPDDR5, 128GB eMMC flash

ODROID-M2 low-profile SBC features Rockchip RK3588S2 SoC, up to 16GB LPDDR5, 128GB eMMC flash

ODROID-M2 SBC

Hardkernel has just launched the ODROID-M2 low-profile SBC based on a Rockchip RK3588S2 octa-core Cortex-A76/A55 AI SoC with up to 16GB LPDDR5, 64GB eMMC flash, an M.2 PCIe socket, support for three displays through HDMI, USB-C, and MIPI DSI interfaces, gigabit Ethernet, and more. The ODROID-M2 follows the ODROID-M1 and ODROID-M1S single board computers based on respectively Rockchip RK3568 and RK3566 quad-core Cortex-A55 processors, but a significantly more powerful Rockchip RK3588S2 processor, and a larger 90x90mm form factor to accomodate for extra features and interfaces. ODROID-M2 specifications: SoC – Rockchip RK3588S2 CPU – Octa-core processor with 4x Cortex-A76 cores @ up to 2.3 GHz (+/- 0.1Ghz), 4x Cortex-A55 cores @ up to 1.8 GHz GPU – Arm Mali-G610 MP4 GPU @ 1 GHz compatible with OpenGL ES 3.2, OpenCL 2.2, and Vulkan 1.2 APIs VPU – 8Kp60 video decoder for H.265/AVS2/VP9/H.264/AV1 codecs, 8Kp30 H.265/H.264 video encoder AI accelerator – 6 […]

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