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SONOFF Zigbee Bridge Ultra Review – eWelink app, Matter Bridge, Turbo Mode for extended range, and Home Assistant

We have received two more Zigbee smart home products from ITEAD to review. It appears that SONOFF has strategically introduced a variety of Zigbee devices in the first half of this year. The first one we will be reviewing is the SONOFF Zigbee Bridge Ultra, which we believe will eventually replace the Zigbee Bridge (2020) and Zigbee Bridge Pro (2022) and comes with additional features, such as being a Matter Bridge. The second device we’ve received is the SONOFF Micro Zigbee USB Adapter for which we’ll post a review in the next few days, But first, let’s dive into the SONOFF Zigbee Bridge Ultra review. Overview SONOFF Zigbee Bridge Ultra (Ultra for short and also called SONOFF ZBBridge-U) is a multi-functional device. Compared to its predecessor, the Zigbee Bridge Pro, the Ultra shows big improvements in features and hardware specs. It boasts a much more powerful chip (Rockship RV1109 vs. […]

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Purchase GEEKOM Mini Air12 mini PC for just $219 with cnxair12off coupon code (Sponsored)

GEEKOM has just launched a promotion for its entry-level Mini Air12 mini PC powered by an Intel Processor N100 quad-core processor with 16GB DDR5 and a  512GB NVMe SSD. The low-power Windows 11 Pro mini PC is now sold for $219 on Amazon instead of $249, or a $30 discount when using the 12% discount coupon code cnxair12off. The mini PC supports up to three 4K displays through HDMI, mini DP, or USB-C ports, gigabit Ethernet and WiFi 6 wireless connectivity, and a full-size SD card reader, and is equipped with five USB 3.2/2.0 ports for expansion. As a reminder, here are GEEKOM Mini Air12 specifications: SoC – Intel Processor N100 Alder Lake-N quad-core/quad-thread processor @ up to 3.4 GHz (Turbo) with 6MB cache, 24EU Intel HD graphics @ up to 750 MHz; TDP: 6W System Memory – 16GB DDR5-4800 via SO-DIMM socket Storage 512GB M.2 2280 PCIe Gen 3 […]

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GateMate Integrated Logic Analyzer (ILA) deep dive

CNXSoft: This is a guest article by Dave Fohrn, Embedded Software Engineer at Cologne Chip AG, that goes into detail about the company’s open-source integrated logic analyzer (ILA) for GateMate FPGA chips. A field-programmable gate array (FPGA) is a highly flexible integrated circuit in which complex logic circuits can be configured. They are often used as custom computing units in digital circuits because of their ability to process data quickly and in parallel using individually configured circuits. The digital circuits designed specifically for FPGAs are usually developed in a hardware description language such as Verilog or VHDL and are known as gateware. The term “gate” refers to the configurable digital logic units in the FPGA on which the individual gate circuits are implemented. An effective design can accelerate the computing process by strategically utilizing the various resources available in the FPGA, processing data in parallel, and intelligent implementing pipelining. A […]

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GEEKOM A8 Review – Part 3: Ubuntu 24.04 tested on an AMD Ryzen 9 8945HS mini PC

We’ve already checked out GEEKOM A8 mini PC hardware with an unboxing and a teardown, before testing the AMD Ryzen 9 8945HS mini PC in Windows 11 Pro, and we’ll now report our experience with the GEEKOM A8 running Ubuntu 24.04 to see how it performs in Linux. We tested most features of the GEEKOM A8 mini PC on Ubuntu 24.04, ran several benchmarks to compare it to the similar GEEKOM A7 mini PC, performed storage and networking performance testing, ran stress test to check thermal performance, and measured fan noise and power consumption under various conditions. Installing Ubuntu 24.04 on the GEEKOM A8 mini PC As usual, we resized the Windows 11 partition to install Ubuntu 24.04 alongside Microsoft OS using a bootable USB flash drive created with the Ubuntu ISO. But you’ll notice BitLocker is enabled so the Ubuntu 24.04 installation can’t proceed. The installation wizard will ask […]

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Dual Micro HDMI to HDMI adapter supports Raspberry Pi 5/4B, offers multiple power options

Waveshare Pi5 Connector Adapter is a compact dual Micro HDMI to HDMI adapter for the Raspberry Pi 5 or Pi 4B that connects to the micro HDMI and USB-C ports simultaneously and provides access to two full-sized HDMI ports. The PCB also features a USB-C port and a screw terminal for power. Previously, we have written about many unique waveshare products, including Waveshare 2-CH CAN MiniPCIe, the Waveshare UGV Rover, the Waveshare ESP32-C6-Pico and Pico-M boards and many others, feel free to check those out if you are interested in the topic. Waveshare Micro HDMI to HDMI adapter specifications Supported Pi – Raspberry Pi 5 / Pi 4B Display Interfaces 2x micro-HDMI inputs 2x HDMI outputs Misc – 2x 3-pin UART connectors Power Power input 1x USB-C female port (Power In) 5 mm box-type screw terminal JST connector for battery Power Output – 1x USB-C male port (Power out) Dimensions […]

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ThingPulse Pendrive S3 ESP32-S3 USB stick comes with 128MB of storage and a capacitive spring button

The Pendrive S3 is an ESP32-S3 development board in a USB stick enclosure with 128MB of flash memory and an unusual capacitive touch button. The Espressif ESP32-S3-MINI-1 module on the board integrates an Xtensa dual-core 32-bit LX7 microprocessor with support for 2.4GHz Wi-Fi and Bluetooth 5 (low-energy). The device features a capacitive touch button that can be used to trigger actions by touching the enclosure. The capacitive button isn’t visible on the exterior of the device, which helps the device maintain a low profile. You may be interested in Dani Eichhorn’s article on how he came up with the idea of using a spring for the capacitive touch button. The Pendrive S3 stick can be used as a BadUSB device for hacking and penetration testing purposes. With the aid of SuperWiFiDuck, it can perform keystroke injection attacks. All scripts can be managed and controlled wirelessly via a web interface, and […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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LattePanda Mu review – Part 1: an Intel N100 Compute Module tested with Windows 11, carrier boards with PCIe slots

Last April, DFRobot launched the LattePanda Mu x86 Compute Module powered by an Intel N100 Alder-Lake processor with 8GB RAM and a 64GB eMMC flash along with Lite and Full function carrier boards for evaluation. End customers will typically design their own carrier board without having to take of high-speed signals for the LPDDR5 memory and other complexities during the PCB layout. DFRobot has sent us the LattePanda Mu module for review along with the Lite and Full Function carrier boards, a heatsink for passive cooling, and an active cooler so we can compare both cooling solutions.  Let’s have a look at the LattePanda Mu module and accessories before testing the kit with the Windows 11 operating system, including the PCIe x4 slot. LattePanda Mu kit unboxing The parcel included three retail boxes. The smallest box housed the LattePanda Mu Compute Module, a heatsink, and an active cooler. The second […]

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How to repair/replace a WiFi antenna in a mini PC

In this short tutorial, we’ll show how to repair/replace a WiFi antenna in a mini PC. We’ll use GEEKOM A8 Mini PC as a test device because one of its WiFi antennas is attached to the top plastic cover, and it may potentially get damaged when the user opens the case to change or upgrade the SSD or memory sticks. This happened to us during the teardown of the GEEKOM A8 mini PC as shown in the image below.  While WiFi still works with one antenna, the performance is quite better when two antennas are connected so we decided to repair the mini PC. We asked a few local shops, but they would only sell WiFi modules with antennas and none would just sell the antennas themselves. But luckily, such WiFi antennas can easily be purchased online in pairs. The first time, we purchased a WiFi antenna pair from Shopee […]

Boardcon Rockchip and Allwinner SoM and SBC products