Category: Operating Systems

Operating Systems used in Embedded Devices

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on How To Create and Seed a Torrent in Ubuntu Using Transmission Command Line

How To Create and Seed a Torrent in Ubuntu Using Transmission Command Line

You may have a server with limited (free) monthly bandwidth, but yet need to share some large files or files that need to be accessed by a large number of people. Instead of sharing your files via your HTTP server, you can share them via BitTorrent instead in order to hopefully save bandwidth. Here are the steps I followed on Ubuntu 11.10, but they should work with any version of Ubuntu, Debian and Mint. Install transmission client and daemon

Create a directory to share your files and .torrent files

Copy your file in that directory and create the torrent file with transmission-cli

Start transmission-daemon

That’s all your need to do. If you want to monitor transmission remotly via a web interface, you can instead run transmission-daemon as follows: transmission-daemon -c ~/p2p -a public_ip Where public_ip is the public ip of your computer. Alternatively, you could also […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Texas Instruments Sells the MetaWatch, A Wearable Bluetooth 2.1 Watch Devkit For $139

Texas Instruments Sells the MetaWatch, A Wearable Bluetooth 2.1 Watch Devkit For $139

I think there is a TI deal about once a month, and today Texas Instruments sells (via Digi-Key) a Pebble Watch clone device similar to Pebble Watch called MetaWatch which is based on TI MSP430 MCU and CC2560 Bluetooth host controller and was released last year. There are two models: Metawatch Analog ($139) Metawatch Digital ($149) Both models regular price is $203. The discounted price also includes free shipping, but you need to follow the instructions carefully. Although the Metawatch is supposed to currently support both Android and iOS, the model sold is the original one that only supports Android. Here are the specs of the digital Model: Compatibility: Most devices with Android OS 2.3 and up. Potentially any programmable device supporting Bluetooth 2.1 and up device with Serial Port Profile (SPP) connectivity. Case / strap: 3 ATM water resistant stainless steel, black or white replaceable genuine leather strap Display: Mirror polymer network […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Freescale 12-axis Xtrinsic Sensor Platform Technology for Windows 8 / RT

Freescale 12-axis Xtrinsic Sensor Platform Technology for Windows 8 / RT

Freescale announced the Xtrinsic Sensor Platform, a 12-axis sensor development reference platform for Windows 8. This 12-axis sensor platform includes several sensors by Freescale and other companies: Xtrinsic MMA8451Q 3-axis accelerometer Xtrinsic MAG3110 3-axis magnetometer Xtrinsic MPL3115A2 precision altimeter, pressure, and temperature sensor An analog ambient light sensor A selection of 3D gyroscopes are also supported This platform is powered by Freescale ColdFire+ MCF51JU128VHS MCU which combines, configures and processes sensor data with Freescale sensor fusion software to match the requirements of Windows 8/RT. Xtrinic sensor platform communicates with the host device via USB. It does not requires extra drivers as it uses standard HID drivers. You can watch the video below which is an introduction (including some technical details) and demo of the system. Strangely, I could not find a similar Freescale 12-axis reference design for Android or Linux, and I’m not sure why they would limit this hardware […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on Make Your Own Raspberry Pi Laptop With a Motorola Lapdock

Make Your Own Raspberry Pi Laptop With a Motorola Lapdock

There is a very interested thread over the Raspberry Pi forums started by user veryevil where he explains how he built a Raspberry Pi laptop based on Motorola Lapdock (normally used with Motorola Atrix smartphone). This is actually a real hack, because the Raspberry Pi still have to sit outside and you need to make custom cables. But the result still looks great, and veryevil claims the system runs Linux smoothly with a resolution of 1366×768 and the battery can last for hours. Some other users have joined the party, and improved on the design with shorter cables. You can check that forum post for detailed pictures of each cables. Motorola Lapdock used to be an expensive piece of equipment, but Raspberry Pi users indicated it’s currently discounted to 69.98 GBP on Amazon UK and I found it for 81 USD on Amazon US (AT&T Version) which makes it somewhat […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on Mitac Unveils ARM Based GFX Server at Computex 2012

Mitac Unveils ARM Based GFX Server at Computex 2012

MiTAC International announced their first ARM server (MiTAC GFX) based on Marvell ARMADA XP SoC and running Ubuntu 12.04 LTS at Computex 2012, in Taipei. This solution appears to be similar to Dell “Copper” ARM server announced last week, which also uses Marvel ARMADA XP and runs Ubuntu 12.04, except its intended to be a real product rather than just a prototype. The MiTAC GFX with ASX-1 module is intended for deployment as a general purpose server where real estate, efficiency and throughput at a realistic price are key factors and typical applications include web hosting, web browsing, email, chat, social media and networking, etc. Later,  MiTAC will introduce an ASX-HP (High Performance) module for compute intensive workloads that can be add to GFX system, and ASX modules featuring 64-bit SoC are under development. MiTAC showcased a GFX System with 64 nodes (that’s 256 Cortex A9 cores) at Computex 2012, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on How To Let Sudo Insult You When You Type the Wrong Password

How To Let Sudo Insult You When You Type the Wrong Password

This is a completely useless post, but it’s possible to configure sudo to return insults instead of the default error message when you type the wrong password. To enable this feature, edit /etc/sudoers (with visudo for example) and change the line:

to :

Open a terminal windows as a normal user, type a command with sudo and input the wrong password. Here are a few examples: $ sudo bash [sudo] password for testman: xxx Are you on drugs? [sudo] password for testman: xxx Maybe if you used more than just two fingers… [sudo] password for testman: xxx Listen, burrito brains, I don’t have time to listen to this trash. [sudo] password for testman: xxx You silly, twisted boy you. [sudo] password for testman: xxx What, what, what, what, what, what, what, what, what, what? [sudo] password for testman: xxx You do that again and see what happens… [sudo] […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Advantech RSB-4210: Freescale i.MX53 Single Board Computer

Advantech RSB-4210: Freescale i.MX53 Single Board Computer

Advantech has just launched the RSB-4210, a fanless and heatsink-less RISC Single Board (RSB) powered by Freescale i.MX53 (Cortex A8) with 512 MB DDR3 and 2 GB NAND Flash. This board can operate in industrial temperature range (-40 to 85° C) and targets industrial control, digital signage, HMI/kiosk, medical, and portable applications. Here are the key features of this board: Freescale ARMCortex-A8 i.MX536 @ 800MHz Supports OpenGL ES 2.0 and OpenVG 1.1 hardware accelerators Supports full HD 1080p video decode and HD 720p hardware video encode Video Output LCD support with resolution up to 1920×1080 (default 800×480) via LVDS connector HDMI VGA Touch, UART, I2C, I2S, SPI, GPIO, USB Supports SATA storage interface and CAN-bus for vehicle applications Dimensions – 146 x 102 x 20 mm Power – 9 ~ 24 V DC with 3-watt power consumption Operating temperature – -40 ~ 85° C If you don’t mind about the […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Texas Instruments Unveils Wi-Fi CERTIFIED Miracast Video Streaming Solution Based on OMAP 4

Texas Instruments Unveils Wi-Fi CERTIFIED Miracast Video Streaming Solution Based on OMAP 4

In my previous post, I wrote about Marvell announcement of its new 802.11ac chipset (Avastar 88W8897) that will be Wi-Fi CERTIFIED Miracast.  But it’s not the only company for such solution, as Texas Instruments has also announced the availability of a complete solution for mobile devices designed to support Wi-Fi CERTIFIED Miracast, based on the Wi-Fi Alliance Wi-Fi Display Specification that enables users to reliably display high definition content from a mobile device onto a larger screen over a secure, low-latency, wireless network connection. The Miracast certification program defines a standards-based solution for streaming video and audio content over a peer-to-peer Wi-Fi Direct wireless network. TI solutions will leverage OMAP processors and its WiLink connectivity solutions to provide a Miracast platform. This new solution will be available later this year to power mobile phones, tablets, HDTVs, projectors and audio receivers. Texas Instruments solution will provide the hardware and software resources […]

UP 7000 x86 SBC