CNX Software - Embedded Systems News

September 19, 2018June 19, 2019 by Karl Johnson - 33 Comments

Genmitsu CNC 3018-PRO CNC Router Review – Part 1: Build & First Etches

Hey Karl here. Today we are going to look at something a little different. I am writing about my experiences with building Genmitsu 3018 CNC router upgraded version provided by Sainsmart for this review. While waiting on the unit to arrive I did some research and found that there are several different versions on the market labeled CNC xxxx. The xxxx represent the build volume in the x and y. So the one I was sent has a 300x180mm build volume. The 3018 is called upgraded because the new mounting for the X and Y rods and lead screws. On the previous version these had to be mounted and manually aligned which from what I read can be a pain. Building Genmitsu CNC 3018-PRO CNC Router The build went very well. The 3018 user manual was mostly pictures but they called out anything that might be questionable. I had been […]

September 18, 2018November 3, 2019 by Jean-Luc Aufranc (CNXSoft) - No Comments

WisCellular Certified Global LTE IoT Arduino Shield Enters Beta Testing

RAK Wireless introduced WisLTE Arduino shield last year based on Quectel BG96 module with support for NB-IoT (Cat NB1), eMTC (Cat M1), and 2G fallback as well as GPS location. WisLTE worked globally, but the company did not go through the certification process, at least not for the global market, meaning the shield could not be used in commercial applications. That’s why Rak Wireless has been working on WisCellular shield, also based on Quectel BG96, but this time with global certification. WisCellular specifications: Cellular Module – Quectel BG96 (based on Qualcomm MDM9206) Cellular Network 2G/GSM (GPRS/EPGRS) 4G/LTE-M (Cat M1) NB-IoT (Cat NB1) Global Bands EDGE/EGPRS: 850/900/1800/1900MHz LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28 LTE TDD: B39 (For Cat M1 Only) Data Rate Cat M1: Max. 300Kbps (DL), Max. 375Kbps (UL) Cat NB1: Max. 32Kbps (DL), Max. 70Kbps (UL) EDGE: Max. 296Kbps (DL), Max. 236.8Kbps (UL) GPRS: Max. 107Kbps (DL), Max. 85.6Kbps (UL) Voice – […]

September 18, 2018September 18, 2018 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

OpenMV Cam H7 MicroPython Machine Vision Camera Launched on Kickstarter

OpenMV team has launched an upgrade to their popular OpenMV CAM M7 machine vision camera, with OpenMV CAM H7 replacing the STMicro STM32F7 micro-controller by a more powerful STM32H7 MCU clocked at up to 400 MHz. Beside having twice the processing power, the new camera board also features removable camera modules for thermal vision and global shutter support. OpenMV CAM H7 camera board specifications: MCU – STMicro STM32H743VI Arm Cortex M7 microcontroller @ up to 400 MHz with 1MB RAM, 2MB flash. External Storage – micro SD card socket supporting up to 100 Mbps read/write to record videos and store machine vision assets. Camera modules Omnivision OV7725 image sensor (default) capable of taking 640×480 8-bit Grayscale / 16-bit RGB565 images at 60 FPS when the resolution is above 320×240 and 120 FPS when it is below; 2.8mm lens on a standard M12 lens mount Optional Global Shutter camera module to capture […]

September 17, 2018August 8, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

AV1 Video Samples Now Available on YouTube & Netflix

We first covered AV1 royalty-free, open source video codec in 2016, which with backing from companies like Google, Amazon, Intel, Microsoft, and many others with the aim to compete with H.265, and lower the cost of delivering video both thanks to a better compression ratio, and the lack of royalties. Since then progress has been made, with AV1 specifications released last March, and now both YouTube and Netflix are offering some beta AV1 video samples for testing. If you want to play some videos in AV1 format in YouTube as I did in the screenshot above, you’d need to install a very recent (beta) version of Chrome or Firefox, follow the other instructions as explained in YouTube’s AV1 beta playlist: Support for AV1 in MP4 within Media Source is available in Chrome 70, and Firefox 63 builds newer than September 13 with the media.av1.enabled pref set. Using a supported browser […]

September 17, 2018September 17, 2018 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Zero-overhead Destructors in C

CNXSoft: This is another guest by Blu, this time about C programming, and specifically destructors in C programming language If you asked seasoned C++ developers what their favorite features in the C++ language might be, chances are that destructors would be on everybody’s shortlist. As many other C++ developers, I too tend to do my occasional share of C, and if there’s one feature I dearly miss in C that is destructors ‒ precisely in their capacity of automating the release of resources at the right moment. But first a disclaimer is in order: many people call simple application of destructors ‘RAII’ ‒ ‘Resource Acquisition Is Initialization’; I find this acronym unnecessarily awkward and obfuscating an otherwise straightforward concept, so you won’t see this acronym through the end of this text. Instead, I’ll be using ‘end-of-scope’ action. Traditionally, in the language of C end-of-scope (more often end-of-function) actions are achieved […]

September 16, 2018September 16, 2018 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

LAKE I Home Cloud TV Box with HDMI Input Goes for $54 (Promo)

We’ve previously covered LAKE I Home Cloud as one of the cheapest TV boxes based on Realtek RTD1295 processor, and featuring HDMI input for video recording and/or streaming video from an external source up to 1080p60, as well as an SATA bay for 2.5″ drives. A reader has just informed me the device was now available for an even cheaper price, as it is offered for just $53.99 + shipping on GearBest. The specifications are pretty standard for an RTD1295 media center: SoC – Realtek RTD1295 quad core Cortex A53 processor with ARM Mali-T820 MP3 GPU System Memory – 2GB DDR4 Storage – 16GB eMMC 5.1 flash + SD card slot up to 128 GB + SATA hard disk bay for 2.5″ drives with 9.5mm / 7.5mm thickness Video I/O – HDMI 2.0a output, and HDMI input (recording and streaming up to 1080p @ 60 Hz) Audio I/O – HDMI […]

September 15, 2018 by Ian W MORRISON (Linuxium) - 2 Comments

Beelink X45 Mini PC Review with Windows 10 and Ubuntu 16.04/18.04

The Beelink X45 mini PC is now available, and Lightinthebox.com have provided a unit for review. It is very similar in style to Intel’s latest NUC Windows mini PC, the NUC7CJYSAL reviewed earlier. However it contains an Intel Celeron Processor J4105 SoC which is a quad core processor bursting up to 2.50 GHz together with the Intel UHD Graphics 600 processor that is capable of 4K support at 60Hz. It is physically small consisting of an approximately 4.5″ by 4” case about 1¾” tall with a front panel that includes the power button and a couple of USB ports and a headphone jack with the rest of the ports including two HDMI (2.0) ones at the rear: The specifications include: A key point to note is the Beelink X45 comes with 64GB eMMC with pre-installed Windows 10 Home together with 4GB DDR4 RAM (soldered and is non-expandable) with space and […]

September 14, 2018October 8, 2018 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

ZIDOO Z9S / Z10 RTD1296 Android + OpenWrt Media Boxes Coming in October

Zidoo introduced their first Realtek RTD1296 media players earlier this year with Zidoo X20 / X20 Pro models, but with prices starting at almost $500 those are not for everyone. The company will soon launch cheaper and more compact models with ZIDOO Z9S and Z10, which are updated of RTD1295 models Zidoo X9S and X10 launched in previous years. Zidoo Z9S / Z10 specifications: SoC – Realtek RTD1296DD quad core Cortex A53 processor with ARM Mali-T820 MP3 GPU System Memory – 2GB DDR3 Storage 16GB eMMC flash + micro SD slot up to 32GB Zidoo Z9S only – 2x SATA 3.0 external interfaces Zidoo Z10 only – 1x SATA 3.0 bay for 3.5″ drives Video I/O HDMI 2.0a output up to 4K @ 60 Hz, HDR10 support HDMI 2.0 input with HDCP 2.2 input (recording and streaming up to 1080p @ 60 Hz) Zidoo Z9S only – 3.5mm AV output […]