Operating Systems Category - Page 723 of 1035 - CNX Software

April 14, 2015April 14, 2015 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Mifree HX-V5 Bluetooth Smart Fitness Tracker sells for $14

Mifree HX-V5 is a waterproof Bluetooth 4.0 activity tracker with fitness tracking and sleep monitoring functions just like Vidonn X5, except the device bring the price level to a new low, as it sells for just $14 including shipping on GeekBuying, and currently about $20 on Aliexpress, but there are few sellers, and more may come up around the $15 mark. HX-V5 smart band specifications differ depending on the sites too, not for the user exposed features, but for the internals [Update: GeekBuying told me they were given the wrong information, so I updated the specs accordingly): SoC – TI CC2541 Bluetooth SoC Storage – 4MB flash, enough to preserve 60 days of data Display – 0.91″ OLED display, 128×32 pixels Connectivity – Bluetooth 4.0 LE Sensors – 3-axis MEMS sensor IP Rating – IP67 (unlikely IMHO) Battery – 3.7V/70mAh Li-ion battery, good for 10 to 12 days. 2 to 3 hours charging time. Dimensions […]

April 14, 2015April 15, 2015 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

HPC Performance & Power Usage Comparison – Intel Xeon E3 vs Intel Atom C2720 vs Applied Micro X-Gene 1 vs IBM Power 8

Last year, the CERN published a paper comparing Applied Micro X-Gene (64-bit ARM) vs Intel Xeon (64-bit x86) Performance and Power Usage, and they’ve now added IBM Power 8 and Intel Atom Avoton C2750 processor to the mix in a new presentation entitled “A look beyond x86: OpenPOWER & AArch64“. So four systems based on Intel Xeon E3-1285L, Intel Atom C2750, Applied Micro X-Gene 1, and IBM Power 8 were compared, all running Fedora 21, except the HP Moonshot 1500 ARM plarform running Ubuntu 14.04 and an older kernel. All four systems use gcc 4.9.2, and Racktivity intelligent PDUs were used for power measurement. I’ll just share some of their results, you can read the presentation, or go through the benchmark results to find out more. HEP-SPEC06 is a new High Energy Physics (HEP) benchmark for measuring CPU performance developed by the HEPiX Benchmarking Working Group, and here it’s not […]

April 14, 2015April 14, 2015 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

AtHome Video Streamer App Transforms Android TV Boxes into IP Security Cameras

Some Android mini PCs come with cameras, for example Measy U2C or CS928, but depending on firmware support, most will also take a USB webcam, and the obvious application is for video conferencing with Skype or Google Hangout. But I’ve just found out an app called “AtHome Video Streamer” can transform any Android device with camera support into as IP camera for security or monitoring. The app will show with the name AVS, and it should detect your camera automatically, and show a live feed. I installed the app in Zidoo X9 TV box to which I connected a UVC USB camera in order to monitor… my chameleon plush / pillow. X9 camera support might need to be improved, as I lost access to the webcam a few times. You don’t have many options in AVS app, except Dimming the screen, and change the streamer name, username and/or password. So […]

April 13, 2015April 13, 2015 by Jean-Luc Aufranc (CNXSoft) - 31 Comments

How to Program STMicro STM8S $1 Board in Linux

In January, I discovered there was such thing as a one dollar development board based on STMicro STM8S103F3P6 8-bit MCU with 1KB SRAM, 8KB flash, and 640 bytes EEPROM, some GPIOs as well as I2C, UART, SPI, ADC, and PWM signals. Links to documentation and source code were provided, but development tools were only Windows based. However, one of my reader informed me SDCC (Small Devices C Compiler) supported STM8, and development in Linux should be feasible. So I decided to buy the board on eBay for $1.62, as well as an ST_link V2 programmer for STM8 / STM32 for $4.52 in order to flash the firmware. The board came pretty quickly, i.e. within 2 to 3 weeks. But due to a lost package, the programmer took nearly 3 months to reach me, as the seller had to re-send after I failed to receive it within 2 months. It comes […]

April 12, 2015 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

ARDHAT adds Arduino Shield Compatibility, an ISM Band Radio to Raspberry Pi and ODROID-C1 Boards (Crowdfunding)

NinjaBlocks created Pi Crust add-ons board adding a 433MHz radio and Arduino compatibility to the Raspberry Pi Model A & B a few years ago, but the product has since been removed from their store. But a startup called ubIQio has now created a similar product compatible with Raspberry Pi Model A+, B+ and B2, as well as ODROID-C1 which also comes with a 40-pin R-Pi header. The ARDHAT board is a HAT compatible add-on board with an Atmel MCU, Arduino headers, as well as an optional long range mesh ISM radio (433, 868 and 915 MHz) and various sensors. There are four versions of the board: Basic Ardhat, Ardhat-I, and Ardhat-W and Ultra, which share the following specifications: MCU – Atmel MCU @ 16MHz Headers and I/Os Arduino compatible header accepting 5V Arduino shields 12 ch PWM O/P, 6 ch analog I/P Real-time Clock Programmable Power/Navigation combo switch Programmable […]

April 11, 2015 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Open Hour Chameleon RK3288 TV Box Gets (Partial) DTS-HD and Dolby TrueHD HDMI Pass-through Support

People owning AV receivers capable of outputting 7.1 channels or more have had a hard time finding Android TV boxes that supports HD audio pass-through via HDMI. Many devices can pass through 5.1 codec like DTS or Dolby Digital (AC3 / E-AC3), but so far, none of the boxes I’ve tried could manage content with DTS-HD (MA / HR) and Dolby TrueHD with 8 channels properly. The one that came close was Zidoo X9 with support for Dolby TrueHD 5.1 and 7.1, but it downmixes 7.1 channels to 5.1 channels. So the only cost effective options to get proper 7.1 channel pass-through were Intel based mini PCs running Linux such as Asus Chromebox M004U or Intel NUCs. But recently, I’ve seen some progress. For example, yesterday Cloud Media released a new firmware for their Open Hour Chameleon media player based on Rockchip RK3288 processor. Their Android 4.4.2 firmware (version 1.0.23) […]

April 10, 2015May 6, 2016 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

How to Compare Systems Benchmarked with Phoronix Test Suite

Phoronix Test Suite is an open source benchmark for Linux, Solaris, Mac OS X, Windows & BSD operating systems, but in practice it’s mostly used for Linux OS since other benchmarks solutions are available in Windows, while choices are more limited in Linux. There are many benchmarks to choose from, and you can select the ones you want by running a “batch-benchmarks” from the command line. I’ve done so when testing performance of ODROID-XU3 Lite and Cubieboard4 boards in Ubuntu, and once the tests are completed, the results will be automatically uploaded to openbenchmarking.org. From there, it’s quite easy to compare recent results as you’ll get an “add to comparison” option on the site, and you can pick a few results. You can select a few systems, and then click on “Compare Results” to get a side-by-side comparison. If you want to compare your system to an existing system, you […]

April 9, 2015 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Mygica ATV586 Amlogic S805 Android TV Box Comes with DVB-T2 or ATSC Tuner

One of the first quad core Android DVB-T2 receiver was VideoStrong K1 that now sells for $80 on Aliexpress, but there’s now some competition from Geniatech, with the same Amlogic S805 processor, thanks to Mygica ATV586 Android TV box featuring either a DVB-T2 or ATSC tuner. ATV586 Specifications: SoC – Amlogic S805 quad core ARM Cortex A5 @ 1.5GHz with quad core Mali-450MP GPU System Memory – 1 GB DDR3 Storage – 4 GB NAND flash + micro SD slot (up to 32GB) Connectivity – 10/100M Ethernet, 802.11 b/g/n Wi-Fi Video & Audio Output – HDMI 1.4 Video Codec – H.265, H.264 etc.. up to 1080p60 Tuner DVB-T & DVB-T2 standard with single input terminal (75 Ohm); Frequency – 48.25 – 863.25 MHz; Bandwidth: 6, 7 or 8 MHz ATSC also supported (with a different tuner) USB – 2x USB 2.0 ports Misc – IR sensor Power Supply – 5V/2A […]