Trying out Edge Impulse machine learning platform on XIAO BLE Sense board

double-sided sticky tape boards

I had seen the Edge Impulse development platform for machine learning on edge devices being used by several boards, but I hadn’t had an opportunity to try it out so far. So when Seeed Studio asked me whether I’d be interested to test the nRF52840-powered XIAO BLE Sense board, I thought it might be a good idea to review it with Edge Impulse as I had seen a motion/gesture recognition demo on the board. It was quite a challenge as it took me four months to complete the review from the time Seeed Studio first contacted me, mostly due to poor communications from DHL causing the first boards to go to customs’ heaven, then wasting time with some of the worse instructions I had seen in a long time (now fixed), and other reviews getting in the way. But I finally managed to get it working (sort of), so let’s […]

Khadas VIM4 Review – Part 2: Android 11 preview and benchmarks

Khadas VIM4 Android 11 Review

In the first part of Khadas VIM4 review, I showed off the Amlogic A311D2 SBC and some accessories such as the DIY case and M2X expansion board to add M.2 SSD and modem and tried out OOWOW cloud services to install Ubuntu 20.04 server. I’ve now just gotten Fiber Internet at home, so it’s much more practical to test the system, and in the second part of the review, I’ve installed Android 11 on the VIM4 board, checked out settings and system info, and ran some benchmarks.  It will be more like a preview since Android 11 is not a consumer-friendly system at this time, and is more designed for people wanting to build their own applications. Installing Android 11 on Khadas VIM4 with OOWOW system Last time around, I used OOWOW system install in the SPI flash on the board to download and install Ubuntu 20.04 server to the […]

Ultenic T10 review – A self-emptying 2-in-1 smart vacuum robot with mopping function

Ultenic T10 smart vacuum cleaner review

Ultenic T10 is a 2-in-1 smart vacuum cleaner and mopping system with a self-emptying base that’s quite similar to the Cybovac S31 robot I reviewed a little over a year ago. The Cybovac vacuum cleaner still works fine, but it has some shortcomings, so when Ultenic asked me whether I would be interested in reviewing their T10 unit, I accepted, and here I am with a new smart robot vacuum cleaner that I’ll review with the Android app in a larger house. Ultenic T10 unboxing The package and hardware are very similar to what I got with the Cybovac model. The robot comes with a charging base that’s pretty large since it includes its own dust bag for the self-emptying function. Key features listed for the T10 vacuum cleaner: Navigation Type – LDS laser for visual SLAM function Suction power Carpet pressurization – 2700 Pa Fixed-point cleaning – 2700 Pa […]

Khadas VIM4 Review – Part 1: Unboxing, kit assembly, and first boot with OOWOW

Khadas VIM4 heatsink

Khadas VIM4 is a compact Amlogic A311D2 octa-core Cortex-A73/A53 SBC with 8GB RAM, HDMI input and output, WiFI 6 connectivity, and more. You can check our earlier post for the full specifications. The good news is that it will officially launch on May 10. I’ve also just received a Khadas VIM4 review sample today together with accessories. Today, I’ll start by checking out the board, assembling the kit, and trying out OOWOW services to boot OS from the cloud, before testing available operating systems in more detail in the second part of Khadas VIM4 review a little later. Khadas VIM4 kit unboxing I received everything in a blank cardboard package with several small packages inside. Besides Khadas VIM4 SBC, we’ve got a plastic + metal enclosure with screws and screwdriver, two antennas for WiFi and Bluetooth, a USB Type-C power supply, a USB-C cable, an M.2 expansion board, a short […]

Morefine S500+ Review – An AMD Ryzen 7 5700U mini PC tested with Windows 11, Ubuntu 20.04

MOREFINE S500+ review

Morefine has recently released their S500+ series of mini PC series which features models with either a Zen 2 or Zen 3 AMD mobile processor. Morefine kindly sent one for review and I’ve looked at performance running both Windows and Ubuntu. Morefine S500+ Hardware Overview The S500+ physically consists of a 149 x 145 x 40mm (5.87 x 5.71 x 1.57 inches) square metal case with a plastic top. As an actively cooled mini PC, it is available with either an AMD Zen 2 or Zen 3 mobile processor. The review model came with AMD’s 7 nm Zen 2 Ryzen 7 5700U Lucienne processor which is an eight-core 16-thread 1.8 GHz mobile processor boosting to 4.3 GHz with Radeon Graphics. The front panel has a power button, a light to indicate power, two USB 3.1 ports, and a Type-C USB 3.1 port with Alternate Mode. The rear panel includes a […]

Getting started with Maker Nano RP2040 using CircuitPython: Blinky, RGB LED, and Piezo Buzzer

Maker Nano RP2040 circuitpython guide

CNXSoft: This getting started guide was initially posted in Thai language by Suthinee Kerdkaew, and I’ve just translated her work into English with some minor edits. As discussed in an earlier article, Maker Nano RP2040 is a board following the Arduino Nano form factor, but with a more powerful Raspberry Pi RP2040 microcontroller. The board also comes with plenty of LEDs, as well as two RGB LEDs, and a piezo buzzer for audio output. Mr. Jean-Luc Aufranc has just given me a Maker Nano RP2040 board received from Cytron for review. I’ve never used a board before, so it’s my first experience, and in this article, I’ll try to program Maker Nano RP2040 with CircuitPython with three demos: a blinky sample, changing the color of the RGB LEDs, and playing a melody through the piezo buzzer. Let’s see if I can do it. Let’s get started. I first downloaded the […]

Beelink SER4 Review – Windows 11, Ubuntu 20.04, and “overclocking” AMD Ryzen 7 4800U SoC

Beelink SER4 review

Beelink has released the SER4 which is the latest in their ‘SER’ mini PC series and it features a Zen 2 AMD mobile processor. Beelink kindly sent one for review and I’ve looked at performance running both Windows and Ubuntu and dabbled with ‘overclocking’. Beelink SER4 Hardware Overview The Beelink SER4 physically consists of a 126 x 113 x 40mm (4.96 x 4.45 x 1.57 inches) square metal case. As an actively cooled mini PC, it uses AMD’s 7 nm Zen 2 Ryzen 7 4800U Renoir processor which is an eight-core 16-thread 1.8 GHz mobile processor boosting to 4.2 GHz with Radeon Graphics. The front panel has an illuminated power button, a 3.5mm headphone jack, a Type-C USB 3.1 port with Alternate Mode, dual USB 3.1 ports, and a reset pin-hole ‘CLR CMOS’.  The rear panel includes a gigabit Ethernet port, a USB 3.1 port and a USB 2.0 port, […]

Higole F7G Plus Review – An affordable rugged tablet tested with Ubuntu 20.04 & Windows 11

Higole F7G Plus rugged tablet review

Ruggedized industrial-use PCs are typically expensive so it is refreshing to see Higole F7G Plus, an Intel Gemini Lake Refresh tablet, being offered at an affordable price. Higole kindly sent one for review and I’ve looked at functionality and performance running on Ubuntu and also its Windows performance. Hardware Overview The Higole F7G Plus is a 10.1 inch IPS touch screen rugged industrial fanless tablet that uses Intel’s 14 nm Gemini Lake Refresh N4120 processor which is a quad-core 4-thread 1.10 GHz Celeron processor boosting to 2.60 GHz with Intel’s UHD Graphics. Designwise, meeting the MIL-STD-810G standard which is the de facto ‘ruggedized’ standard for consumer products and covers whether the device can work in a broad range of environmental conditions including surviving dropping, is evidenced by the thick protective shell around the tablet. To ensure its IP67 Certification for waterproofing each of the ports are covered by detachable rubber […]

VisionFive Linux RISC-V SBC