Linux News - Page 278 of 483 - CNX Software

October 30, 2017 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

NanoPi Duo Quick Start Guide – Ubuntu, Breadboard, Mini Shield & mSATA SSD

As far as I know NanoPi Duo is the only quad core ARM Linux development board that can fit on a breadboard. We’ve already seen it’s much smaller than Raspberry Pi Zero, and the company offer a mini shield exposing USB ports, Ethernet, a few I/Os, and an mSATA slot in in NanoPi Duo Starter Kit Review – Part 1: Unboxing and Assembly. I’ve finally played with it this week-end, and will report what I had to do to blink a LED when connected to breadboard, and my experience using the mini shield with an mSATA SSD, WiFi connectivity, and cooling under load. Flashing Ubuntu 16.04.2 firmware image to NanoPi Duo As with many other Allwinner development boards, you should first check if Armbian is available for the board. NanoPi Duo is not supported, but it’s said to work with Orange Pi Zero image minus support for WiFi. Since the […]

October 30, 2017November 1, 2017 by Jean-Luc Aufranc (CNXSoft) - 179 Comments

Giveaway Week – NanoPi NEO NAS Kit with NEO 2 Board

Time has come to organize another giveaway week. I used to mainly give away TV boxes, but due to recent regulations that will not be possible anymore, and instead this giveaway week will include Linux and IoT development boards, and other accessories. I’ll start with NanoPi NEO NAS Kit v1.2. NanoPi NEO NAS Kit v1.2 is a low cost kit NanoPi NEO or NEO 2 board that takes a 2.5″ hard drive. I’ve tested it with NanoPi NEO 2 board and OpenMediaVault, and found to perform optimally for this type of device (USB 2.0 to SATA), with SAMBA reads & writes achieving 40 MB/s. The hardware given away includes the NAS Kit v1.2 and a NanoPi NEO 2 board. You’ll just need to add a micro SD card with the OMV image, a hard drive, and a 12V/2A (or greater) power supply. To enter the draw simply leave a comment […]

October 27, 2017October 27, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Emcraft Releases Linux BSP for NXP i.MX RT1050 Cortex M7 Evaluation Board

NXP iMX RT series is a family of ARM Cortex M7 processors clocked at 600 MHz, making the solution a “crossover embedded processor” bridging the gap between real-time capabilities of micro-controllers and the performance of application processors. This week, NXP provided some benchmark numbers for i.MX RT1050 processor, which delivers a CoreMark score of 3020, DMIPS of 1284, and 20ns interrupt latency at 600 MHz, which means it could be a good candidate for embedded Linux, and Emcraft Systems has just released a uCLinux BSP for the NXP i.MX RT1050 EVK board. The BSP features U-Boot v2017.09-rc1, Linux Kernel 4.5 with relevant device drivers such as key I/O interfaces, Wi-Fi, SD card, LCD, etc…, and GNU development tools such as a GCC 4.7 toolchain, GDB, and so on. The company has made a demo with a GUI application designed with Crank Software’s Storyboard Suite, and running in Linux on the […]

October 27, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

iMX7-96 “Meerkat” ARM Cortex A7/M4 Development Board Launched for $109

If you have really good memory, you may remember that Freescale was working on a 96Boards compliant i.MX 7 development board in 2015 that was supposed to be released in Q4 of that year. Yesterday the board was finally launched and demonstrated on 96Boards OpenHours. i.MX7-96 board (aka Meerkat) is powered by an NXP i.MX 7 dual core ARM Cortex-A7 + 1x Cortex M4 processor, coupled with 512MB RAM, and complies with the Consumer Edition (CE) of 96Boards specifications. iMX7 96 board specifications: SoC – NXP i.MX 7Dual dual ARM Cortex-A7 processor at 1.2 GHz, with Cortex-M4 @ 200 MHz and 2D accelerator System Memory – 512 MB DRAM Storage – micro SD slot Video Output – HDMI Connectivity – 802.11 b/g/n WiFi + Bluetooth 4.1 LE (LSR Sterling-LWB module) USB – 2x USB 2.0 hosts, 1x micro USB 2.0 OTG Camera – 1x MIPI-CSI Expansion Interfaces 40-pin low speed […]

October 26, 2017 by Jean-Luc Aufranc (CNXSoft) - 68 Comments

Linux Benchmarks – Intel J3455 Apollo Lake vs Z3735F Bay Trail vs RK3399 and Other ARM Platforms

Since I’ve just installed Ubuntu 17.10 on MeLE PCG35 Apo, I decided I should also run some benchmarks comparing with other ARM and x86 Linux platforms I’ve tested in the past.I was particularly interested to compare the performance of Intel Apollo Lake processors (Celeron J3455 in this case) against higher end ARM processors like Rockchip RK3399 (2x A72, 4x A53) since systems have a similar price (~$150+), as well as against the older Bay Trail processor to see the progress achieved over the last 2 to 3 years. To do so, I used Phoronix Benchmark Suite against Videostrong VS-RK3399 results (RK3399 development board):

sudo apt install php-cli php-gd php-xml php-zip 
wget http://phoronix-test-suite.com/releases/repo/pts.debian/files/phoronix-test-suite_7.4.0_all.deb 
sudo dpkg -i phoronix-test-suite_7.4.0_all.deb
phoronix-test-suite benchmark 1709271-TY-1704029RI26

sudo apt install php-cli php-gd php-xml php-zip

wget http://phoronix-test-suite.com/releases/repo/pts.debian/files/phoronix-test-suite_7.4.0_all.deb

sudo dpkg -i phoronix-test-suite_7.4.0_all.deb

phoronix-test-suite benchmark 1709271-TY-1704029RI26

The benchmark first issued a warning about “powersave” governor, but I still went ahead, and once completed I change it to “performance” governor:

sudo apt install cpufrequtils
sudo cpufreq-set -r -g performance

1 2	sudo apt install cpufrequtils sudo cpufreq-set -r -g performance

…and ran the tests again. All results are available on OpenBenchmarking. Let’s address the governor results first. cpufreq-info reports that powersave governor […]

October 24, 2017October 24, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

JeVois Smart Machine Vision Camera Review – Part 1: Developer / Robotics Kit Unboxing

JeVois-A33 computer vision camera was unveiled at the end of last year through a Kickstarter campaign. Powered by an Allwinner A33 quad core Cortex A7 processor, and a 1.3MP camera sensor, the system could detect motion, track faces and eyes, detect & decode ArUco makers & QR codes, follow lines for autonomous cars, etc.. thanks to JeVois framework. Most rewards from KickStarter shipped in April of this year, so it’s quite possible some of the regular readers of this blog are already familiar the camera. But the developer (Laurent Itti) re-contacted me recently, explaining they add improves the software with Python support, and new features such as the capability of running deep neural networks directly on the processor inside the smart camera. He also wanted to send a review sample, which I received today, but I got a bit more than I expected, so I’ll start the review with an […]

October 24, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

Voladd Cloud-Connected Linux 3D Printer is Powered by BeagleBone Black Board (Crowdfunding)

So far, all of the 3D printers that have been reviewed on this blog require you to design or download a 3D object on your computer, and print it from an SD card. But thanks to OctoPrint software and cheap ARM Linux developments boards, it has become possible to add a Linux computer with webcam to remotely start and control the 3D printer for a few dozens dollars. Karl has even released an OctoPrint image for Orange Pi Lite board. Voladd 3D printer already embeds a Linux board, namely the BeagleBone Black running Debian, which allows the 3D printer to be easy to use since no software installation is required. You can start printing by selecting an object in a web browser or an app in your smartphone, and they’ve also taken steps to eliminate/reduce maintenance tasks, such as the inclusion of a filament cartridge. Voladd 3D printer specifications: Internal […]

October 24, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

AMBE+2 Vocoder Promises High Voice Quality at Low (2.0 to 9.6 Kbps) Data Rates

Opus 1.2 open source audio codec was release a few months ago with the ability to deliver low power low high-quality audio bitrate for speech with bitrates as low as 12 Kbps. Digital Voice Systems (DVSI) claims to have gone even lower thanks to their AMBE+2 vocoder (Advanced MultiBand Excitation) providing high-quality speech at data rates from 2.0 to 9.6 kilobytes per second. AMBE+2 vocoder is said to outperform the company’s previous generation AMBE+ Vocoder as well as the G.729 and G.726 vocoders, while operating at only 4.0 Kbps. The vocoder is suitable for mobile radio, secure voice, satellite communication, computer telephony, digital voice and storage applications The solution can be integrated into product either using software licensing, or through Vocoder chips, and the company lists the following key benefits: Maintains speech intelligibility and speaker recognition at rates as low as 2.0 kbps Resistant to background noise and channel bit errors […]