Review of Purple Pi OH – A Rockchip RK3566 SBC tested in 2GB/16GB and 4GB/32GB configurations

Review of Purple Pi OH and Purple Pi OH Pro

Hello, I am going to review the Purple Pi OH boards from Wireless-Tag. The Purple Pi OH is a single-board computer (SBC) mechanically compatible with the Raspberry Pi. They are designed for personal mobile Internet devices and AIoT devices, which can be used in various applications, such as tablets, speakers with screens, and lightweight AI applications. The manufacturer sent me two models. The first model is the Purple Pi OH, which is equipped with 2GB of memory and 16GB of storage space and supports 2.4GHz Wi-Fi. The second model is the Purple Pi OH Pro, equipped with 4GB of memory and 32GB of storage space. This board supports both 2.4GHz and 5GHz Wi-Fi. The other components of both devices are almost the same. They are powered by the Rockchip RK3566 chip, which integrates a quad-core Cortex-A55 processor up to 1.8 GHz, a Mali-G52 GPU from Arm for 3D graphics acceleration, […]

SONOFF POW Ring Review – A WiFi CT Clamp power meter tested with eWelink and Home Assistant

SONOFF POW Ring review

The trend of measuring the energy usage of household electrical devices has become increasingly popular among Smart Home users in the past few years. We have received the new SONOFF POW Ring Smart Power Meter Switch device for review from ITEAD. Unlike SONOFF’s existing energy monitoring devices such as POW Elite, SPM, DualR3, POW3, and POW Origin, this new device, also called POWCT, utilizes a current transformer (CT) to measure the current flow, or total power being consumed. This method provides no physical contact with live wires and reduces the risk during installation. Additionally, it can measure currents of up to 100A, which is significantly higher than previous models. This makes it suitable for measuring electricity usage at the main circuit breaker, energy generated from solar panels, or even for Electric Vehicle (EV) home chargers. The SONOFF POW Ring, which we are testing today, is not only a Smart Power […]

MINIX Z100-0dB review – Part 3: A fanless Intel N100 mini PC tested with Ubuntu 22.04

MINIX Z100-0dB review Ubuntu 22.04 Linux

After the first part of the review with an unboxing and a teardown of the MINIX NEO Z100-0dB mini PC, we tested the fanless Intel N100 mini PC with Windows 11 Pro in the second part, and we are now ready to report our experience with Linux, and more specifically Ubuntu 22.04, on the MINIX Z100-0dB mini PC in the final and third part of the review. We will go through features testing, run some benchmarks to evaluate the performance in Linux, perform storage and network performance tests, check the cooling ability of the mini with a stress test, and also check its power consumption under different scenarios. We will also compare the MINIX Z100-0dB to the actively cooled GEEKOM Mini Air12 mini PC that uses the same Intel Processor N100 CPU. Ubuntu 22.04 installation We will install Ubuntu 22.04 alongside Windows 11 Pro in dual boot configuration, so we […]

Xtherm II TS2+ review – A 256×192 thermal imager tested with an Android smartphone

Xinfrared Xtherm II TS2+ Review Android

Shortly after I wrote about the Mustool MT13S 2-in-1 thermal imager and multimeter, Xinfrared asked me if I wanted to review the Xtherm II TS2+ thermal imager for smartphones. They offer versions that work for Android or iOS smartphones, so the company sent me the Android version of the Xtherm II TS2+ for review. After listing the key features and specifications, I’ll go through an unboxing, and report my experience using the thermal imager with the OPPO A98 5G smartphone running Android 14. Xtherm II TS2+ specifications Minimum focus – 8mm Resolution – 256×192 Pixel Pitch – 12μm FOV – 44.9° x 33.4° Image Frame Rate – 25Hz NETD (Noise Equivalent Temperature Difference) – ≤40mK@25°C, F#1.0 MRTD (Minimum Resolvable Temperature Difference) – ≤500mK@25°C,F#1.0 Temperature Range Measurements- -20°C ~ +450°C with ±2°C or ±2% reading accuracy Operating – -20°C ~ +50°C Temperature Correction – Manual/automatic Power Consumption – <350mW Dimensions – […]

TwoTrees SK1 review – A CoreXY 3D printer with high printing speeds

Two Trees SK1 3D Printer Review

TwoTrees SK1 is an FDM 3D printer with a working area of 256 x 256 x 256 mm and a CoreXY system that can print 3 to 5 times faster than a typical 3D printer. The movements of a CoreXY 3D printer are achieved by moving two motors simultaneously. The TwoTrees SK1 CoreXY 3D printer can print at a maximum speed of 700 mm/s and features automatic Z-Tilt base leveling with a 36-point mesh bed. The print head uses a dual-gear direct extruder to feed the filament directly to the nozzle and the nozzle supports up to 300 degrees Celsius. The printer also comes preloaded with the popular Klipper firmware. TwoTrees SK1 specifications Printing size – 256 x 256 x 256 mm Dimensions – 400 x 400 x 530 mm Printing speed – Up to 700mm/s Acceleration – Up to 20,000 mm/s2 Nozzle temperature – Up to 300ºC Guide rail […]

Beelink SEi12 i7-12650H mini PC review – Part 3: Ubuntu 22.04 Linux

Beelink SEi12 i7-12650H mini PC Review Ubuntu 22.04

After going through an unboxing and teardown of the Beelink SEi12 i7-12650H mini PC, and testing the 12th gen Intel Core i7-12650H mini PC in Windows 11 Pro, we’ll now report our experience with Ubuntu 22.04 in the third part of the review to show how the Beelink SEi12 performs in Linux. We will perform feature testing, run some benchmarks to evaluate performance, test Ethernet, WiFi 6, and Bluetooth, submit the system to a stress test to check its cooling performance and measure fan noise and power consumption. We’ll also compare it to the GEEKOM Mini IT12 mini PC with the same Intel Core i7-12650H CPU. Ubuntu 22.04 installation We shrank the Windows partition is about half to install Ubuntu 22.04 in dual boot configuration along with Windows 11 Pro. We then installed Ubuntu 22.04.3 ISO from a USB flash without any issues. Ubuntu 22.04 system information After a system […]

Testing AI and LLM on Rockchip RK3588 using Mixtile Blade 3 SBC with 32GB RAM

mixtile blade 3 review RK3588 AI LLM

We were interested in testing artificial intelligence (AI) and specifically large language models (LLM) on Rockchip RK3588 to see how the GPU and NPU could be leveraged to accelerate those and what kind of performance to expect. We had read that LLMs may be computing and memory-intensive, so we looked for a Rockchip RK3588 SBC with 32GB of RAM, and Mixtile – a company that develops hardware solutions for various applications including IoT, AI, and industrial gateways – kindly offered us a sample of their Mixtile Blade 3 pico-ITX SBC with 32 GB of RAM for this purpose. While the review focuses on using the RKNPU2 SDK with computer vision samples running on the 6 TOPS NPU, and a GPU-accelerated LLM test (since the NPU implementation is not ready yet), we also went through an unboxing to check out the hardware and a quick guide showing how to get started […]

MINIX Z100-0dB review – Part 2: A fanless Intel Processor N100 mini PC tested with Windows 11

MINIX Z100-0dB review Windows11

We’ve already done an unboxing and a teardown of the MINIX NEO Z100-0dB fanless mini PC powered by an Intel Processor N100 CPU, and equipped with a 16GB DDR4-3200 RAM and a 512GB M.2 SSD before quickly trying the preinstalled Windows 11 Pro operating system in the first part of the review. We’ve now had time to test Windows 11 in the MINIX Z100-0dB fanless mini PC in more detail. So we’ll report our experience in the second part of the review with features testing, benchmarks, some storage and networking performance tests, measurements of fan noise and power consumption, and more. We’ll also compare the MINIX NEO Z100-0dB against other Alder Lake-N mini PCs such as the actively-cooled GEEKOM Mini Air12 that we reviewed at the end of last year. Software overview and features testing The System->About window confirms the Z100-0dB mini PC features an Intel N100 processor at 800 […]

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EDATEC Raspberry Pi 5 fanless case