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August 21, 2014May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Embedded Linux Conference Europe 2014 Schedule – IoT, ARM vs x86, Optimization, Power Management, Debugging…

The Embedded Linux Conference Europe (ELC 2014), CloudOpen, and LinuxCon Europe will jointly take place at the Congress Centre Düsseldorf, in Germany on October 13 – 15, 2014. The 3-day events will consists of keynotes, presentations, and tutorials. Each day will open with two or three keynotes by speakers including Jim Zemlin (Executive Director, Linux Foundation), and Jono Bacon (XPRIZE), followed by presentation and tutorials. There will be 45 presentations for ELCE, 58 for LinuxCon, and 47 for CloudOpen, I’ll make a virtual schedule with a few sessions part of the Embedded Linux Conference Europe “track”. Monday, October 13 11:15 – 12:05 – Performance Analysis Using the Perf Suite by Mans Rullgar, Consultant When faced with a performance problem, the initial steps towards a solution include identifying the sections of code responsible and the precise reasons they are time-consuming. To this end, the ‘perf’ profiling tools provide valuable insight into the […]

August 20, 2014August 20, 2014 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

WRTNode is a Hacker-Friendly Open Source Hardware OpenWRT Wi-Fi Module Selling for $25

There are now some tiny and low cost ($15 to $20) Wi-Fi modules supporting OpenWRT such as VoCore and AsiaRF AWM002. However due to their small size they may not be that hacker’s friendly as they can’t have 2.54mm headers due to heir small size, and I’ve recently received AsiaRF AWM002 only to find out it not only needs 3.3V supply voltage, but also 1.8V and 1.2V. So I’d need to make my own power circuit with the required LDOs, or purchase a $20 base board to use the module. Here comes WRTnode another larger Wi-Fi module but with more usable 2.54mm headers, and based on the more powerful Mediatek MT7620N processor @ 600MHz. WRTnode hardware specifications: Processor – Mediatek MT7620N 600MHz MIPS CPU (MIPS24KEc) System Memory – 64MB DDR2 Storage – 16MB SPI flash Connectivity – Wi-Fi 2T2R 802.11n 2.4 GHz up to 300Mbps Expansion Headers – 2x with […]

August 11, 2014October 20, 2015 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Vigekwear is a Modularized, Open source, Wearable BLE Development Kit (Crowdfunding)

[Update: Atomwear has been renamed to Vigekwear due to (Intel’s) copyrights infringement]. Giayee is a company mainly manufacturing Android tablets, thin clients, and mini PCs, but their latest product, called Atomwear, is a Bluetooth Low Energy (BLE) development kit based on Nordic nRF51822 chipset that comes with various modules such as battery charger, accelerometer, gyroscope, OLED display, heart rate monitor, etc… which connect together via 24-pin connector on a standard rigid baseboard or a flexible printed circuit (FPC). All modules are connected via the same 24-pin connector with power, I2C, SPI, UART, ADC, and GPIOs signals. The baseboard and FPC both contain 6 such connectors connected in parallel for up to 6 modules, and two baseboard can be connected together via a bridge circuit to accept more modules. The minimum configuration is with a BLE MCU module, and a power module. The different boards and modules are listed as follows: […]

August 11, 2014 by Jean-Luc Aufranc (CNXSoft) - No Comments

Parallax Propeller 1 P8X32A Open Source Multi-core MCU

Lots of electronics devices are now powered by open source software such as Linux, open source hardware is not as wide-spread, but gaining tracking traction thanks to the like of Arduino, Beagleboard.org, Olimex, and many projects on crowdfunding websites, and now we even start seeing some open source silicon. Existing open source processors include LEON3 (SparkV8) MCU, OpenRisc, and just very recently, LowRISC, based on 64-bit RISC-V instruction set architecture, has been announced with the backing of some of Raspberry Pi co-founders, Google ATAP, etc… and is currently being developed at the University of Cambridge, UK. Parallax Propeller 1 P8X32A is another MCU which has been open sourced last week. Propeller 1 P8X32A had however been released in April 2006, and can be sourced as a 40-pin DIP chip for prototyping, and 44-pin QFP and QFN for production, and come with the following key features: Power Requirements: 3.3 VDC […]

August 1, 2014April 5, 2020 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

EasyEDA is a Web-based Schematics Capture, Simulation, and PCB Layout Tool

I recently watched a video showing AllWinner R&D, and I noticed although most (all?) software engineer run Ubuntu in the PC, the hardware engineers all relied on Windows based EDA tools for schematics capture and PCB Layout. There are already Linux-based tools such as Kicad, which appears to be good for new projects, but importing existing projects can be an issue. An alternative to operating system dependent EDA software suites are web-based tools. I’ve already tried Fritzing which allows to draw circuits on breadboard, convert these to schematics and PCB layouts, and order the PCBs. It looks pretty good for its purpose, but it’s limited to mostly simple designs, and AFAIK can’t be used to replace an EDA suite. That’s where EasyEDA comes into play. It’s a web-based tool where you can draw schematics, perform simulation, and create PCB layouts for your project, either keeping them private, or sharing them […]

July 25, 2014December 3, 2014 by Jean-Luc Aufranc (CNXSoft) - 36 Comments

Firefly-RK3288 Development Board To Support Android and Lubuntu

We’ve already got a long list of upcoming Rockchip RK3288 based Android media players, but no low cost development boards have been announced to date. We can certainly expect a Radxa Rock 2 board with the Cortex A17 processor, but it might not be the only one, as Firefly-RK3288 development board powered by Rockchip RK3288 is currently being developed by another Chinese team. Current specifications for Firefly-RK3288 board: SoC – Rockchip 3288 quad core ARM Cortex A17 up to 1.8 GHz with Mali-T764 GPU supporting OpenGL ES 1.1/2.0 /3.0, and OpenCL 1.1 System Memory – 2G DDR3 Storage – 8GB eMMC flash + micro SD slot Video I/O HDMI 2.0 up to 3840×2160@60p VGA out (D-SUB connector) VGA in is available via the expansion headers. LCD, MIPI and LVDS Audio Output / Input – HDMI, optical S/PDIF, microphone header, and built-in MIC Connectivity – Gigabit Ethernet, dual band 802.11 b/g/n Wi-Fi with external antenna, and Bluetooth […]

July 15, 2014July 15, 2014 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Adapteva Announces Three Parallella Fanless Boards for Microserver, Desktop, and Embedded Applications

Adapteva’s Parallella low cost open source hardware “supercomputer” is a board powered by Xilinx Zynq-7010/7020 dual core Cortex A9 + FPGA SoC and the company’s Ephipany epiphany coprocessor, that’s had a successful Kickstarter campaign in 2012 as the 16-core version sold for just $99, and is capable of handling applications such as image and video processing, and ray-tracing, and also comes with an OpenCL SDK. The board was fairly difficult to source after the crowdfunding campaign, and one the common complain of backers was the board had to be actively cooled by a fan. The company has fixed both issues by increasing slightly the price, and redesigning the board so that it can be passively cooled by a larger heatsink. There are now three versions of the parallela board: Parallella Microserver ($119) – Used as an Ethernet connected headless server Parallella Desktop ($149) – Used as a personal computer Parallella […]

June 30, 2014June 30, 2014 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Toradex Customized Single Board Computers Powered by Freescale Vybrid and i.MX6 Sell for 39 Euros and Up

Toradex has launched what they call “Customized SBCs” (Single Board Computers) comprised of the usual carrier board an computer-on-module (CoM) combination, using their Apalis & Colibri families. The company offers various combination of Freescale i.MX6 and Vybrid VF50 single board computers, with price starting at 39 Euros for 1k order, or 49 Euros for samples. I’ve already featured Toradex Colibri VF50 (and VF61) modules in another post, but to summarize Colibri VF50 is a computer modules based on Freescale Vybrid VF50 ARM Cortex A5 CPU with 64 to 128MB DDR3, and 128MB NAND flash that targets industrial applications requiring long term availability (15 years). VF50 sells as low as 19 Euros per unit for 10k orders. Viola is a new open source hardware carrier board with the following features: Compatible with all Toradex Colibri CoMs External Storage – microSD interface Video – RGB LCD Interface, 4 wire resistive touch interface […]