Reviews - Page 42 of 119 - CNX Software

May 14, 2020August 14, 2020 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

DFI GHF51 AMD Ryzen Embedded SBC Review – Part 1: Unboxing and Assembly

Earlier this year, Taiwan based DFI launched GHF51 Ryzen Embedded R1000 SBC offering some similarities with Raspberry Pi 4 SBC, including a business card form factor, two Micro HDMI ports, and Gigabit Ethernet. But the comparison stopped there, as DFI GHF51 board will vastly outperform the Raspberry Pi 4 boards both in terms of CPU and graphics performance due to AMD Ryzen processor, and DFI embedded board does not target hobbyists nor students, but instead business and industrial customers. The company recently contacted CNX Software, and send GHF51 board with all accessories for review. I was pretty excited since it’s the first AMD Ryzen Embedded SBC that I’ll review, so it should be particularly interesting. I’ve just received the sample and will do a two-part review starting with unboxing and kit assembly, before publishing the second part of the review reporting on my experience with Windows 10 and/or Ubuntu 20.04. […]

April 20, 2020April 20, 2020 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Getting Started with Qoitech Otii Developer Tool using ESP8266 and Raspberry Pi 4 Boards

Last month, I received Qoitech Otii Arc power supply, power meter, and DAQ unit that aims at helping hardware and software engineers develop energy-efficient products. I’ve now had time to test the unit with an ESP8266 board and Raspberry Pi 4 SBC, so I’ll show how to get started and my overall experience with the hardware and program. Requirements and Initial Setup The unit takes a 9V power supply or micro USB adapter as power input, but power output is done through banana plugs. I did not have any cables with banana plugs so I bought one on eBay for about $5 shipped. This cable is really convenient with output to USB (female connector), crocodile clips, and hook clips. However, as we’ll see below it may not be suitable for all types of loads, and you may have to make your own with a higher rated cable. You’ll need to […]

April 13, 2020February 5, 2022 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

HeimVision HM241 NVR Review – Part 2: Installation Tips, Video Interface, Android App

A coupled of weeks ago, I received HeimVision HM241 HD NVR kit, and in the first part of the review, I showed the content of the kit, installed an internal 3.5″ hard drive, and did a teardown of both the NVR and one camera. I’ve now had time to test the device for about two weeks. I have plans to install it permanently in another location, but for testing, I temporarily installed the camera for testing in several strategic locations: 3 outdoors, one indoors. Back inside, I connected the NVR device (black box below) to an Ethernet switch for Internet connectivity, a 4K TV to access the user interface, a USB mouse, and the power supply. First Boot and Configuration I was quite surprised during the first boot as I did not have to set up anything and the cameras were automatically detected. The first screen shows QR code for […]

March 23, 2020August 3, 2021 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

HeimVision HM241 HD NVR Kit Review – Part 1: Unboxing, Teardown and HDD Installation

I’ve reviewed a few solar-powered security cameras in the last year, and from time to time, I’m being asked to review more from time to time, but I asked for a change, and instead, I wanted to look into security network video recorders (NVR). HeimVision offered this opportunity with its HM241 HD NVR Kit which they also call a “wireless security camera system”, and comes with 4 Full HD security cameras besides the NVR itself. In the first part of the review, I’ll check out the hardware, and take the opportunity to install a 3.5″ hard drive, before doing a proper installation, and report my experience about the software in one or two extra articles. HM241 HD NVR Kit Unboxing People working at customs seem to be fond of larger packages, checked it out in details hence the “Opened and Releases” sticker on the package, and I had to pay […]

March 20, 2020October 3, 2020 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

A First Look at Otii Arc Power Supply, Power Meter, and DAQ Unit

I have recently been contacted by a Swedish company called Qoitech about their Otii solution that aims to help hardware and software engineers achieve long battery life for their IoT devices or apps. At the heart of Otii is Otii Arc hardware that acts as a power supply, voltage and current meter, and data acquisition (DAQ) unit. The company has now sent me a unit for review. I’ll start with a first quick post describing the device and checking out the hardware and interfaces, before writing my experience, or a getting started guide, with Otti hardware and software. Otii Arc specifications: Current/Voltage Measurement Current Accuracy – ±(0.1% + 50 nA) Sample Rate – in ±19 mA range: 4 ksps; in ±2.7 A range: 1 ksps; in 0 – 5 A range: 1 ksps Analog Bandwidth (3dB) – 400 Hz Voltage Total accuracy – ±(0.1% + 1.5 mV) Sample Rate – […]

February 11, 2020February 11, 2020 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

KKSB Raspberry Pi 4 Aluminum Case Review – Benchmarks at Stock Clock and Overclocked to 2.0 GHz

KKSB is a Swedish company designing and manufacturing metallic products for various open-hardware products such as single board computers including Raspberry Pi, Arduino, ODROID, Orange Pi and others, as well as mobile phone and tablet stands, and they also have a mini-ITX case planned for March. The company approached CNX Software to review their latest Raspberry Pi 4 case, and I was interested to find out how it would handle cooling. KKSB Raspberry Pi 4 Case Aluminum Unboxing So I recently received the enclosure in a mostly white package. The case comes in two parts as well as a thermal pad for the processor, mounting screws, rubber pads, and two plastic bits for the LED. Aluminum Case Assembly First, peel over the plastic film on one side of the thermal pad, and place it on the extrusion for the processor on the top part of the enclosure. Remove the second […]

February 10, 2020February 10, 2020 by Jean-Luc Aufranc (CNXSoft) - No Comments

GOLE F7 Windows 10 Tablet Review – Part 2: Barcode & QR Code Scanner, NFC, and Ruggedness

GOLE F7 is a waterproof, shock resistant, rugged tablet running Windows 10 Pro 64-bit. The company sent us a sample together with a charging dock, and you can check out “GOLE F7 Rugged Tablet Review – Part 1: Unboxing and Charging Dock” to find out more about the hardware interface and other physical features of the tablet. I’ve now spent more time with the tablet and tested some of the features such as Barcode scanner and NFC reader. I’ve only done minimal testing of the usual Windows 10 benchmarks since the Intel Atom x5-Z8350 processor powering the tablet has been around for many years, and we have previous mini PC’s reviews showing the performance of the platform in Windows 10 with MINIX NEO Z83-4 Pro or even the previous GOLE F10 model. Instead, I’ve focused on the differentiating features including the ruggedness of the device. GOLE F7 System Info Windows […]

February 9, 2020December 15, 2020 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Yeelight Smart LED Bulb 1S (Color) Review with Android App and Google (Local) Home

Yeelight Smart LED Bulb Google Local Home

Last summer, Google released the Local Home SDK developer preview which allows developers to run actions and use resources on the local device rather than in the Cloud for lower latency. One company that updated its devices is Yeelight whose WiFi smart lights have now been enhanced with the Google Local Home SDK helping deliver a latency of less than 0.3 seconds, so you don’t need to wait after your voice command has been processed by Google Assistant. The company contacted me to test the new feature and had GearBest sent a sample of Yeelight Smart LED Bulb 1S (Color) for review. I have never tested Yeelight devices so I’ll start with an unboxing, testing with the Android app, before trying it out with Google Home and Google Assistant. Unboxing of Yeelight Smart LED Bulb 1S (Color) The package has some useful information about the light bulb including some specifications […]