Raspberry Pi News - Page 171 of 179 - CNX Software

January 16, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Your New ARM SoC Linux Support Check-List – ELCE 2012

Thomas Petazzoni, embedded Linux engineer and trainer at Free Electrons, describes the steps he followed to add a new Marvell SoC to the mainline kernel at ELCE 2012. Abstract: Since Linus Torvalds raised warnings about the state of the ARM architecture support in the Linux kernel, a huge amount of effort and reorganization has happened in the way Linux supports ARM SoCs. From the addition of the device tree to the pinctrl subsystem, from the new clock framework to the new rules in code organization and design, the changes have been significant over the last one and half year in the Arm Linux kernel world. Based on the speaker’s experience on getting the support for the new Marvell Armada 370 and Armada XP SoC support in the mainline Linux kernel, we will give an overview of those changes and summarize the new rules for ARM Linux support. We aim at […]

December 31, 2012May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

MK802 II Mini PC Now Costs as Much as Raspberry Pi Model B. Let’s Compare Them!

MK802 mini PC quickly went viral as it launched in May 2012 for $74 US, and since then many Chinese manufacturers have jumped into the market bringing both new faster devices, and the price down. AllWinner A10s, a low cost version of AllWinner A10 used in MK802, was also launched specifically for this market to bring costs even lower. Today, I’ve been informed an HDMI TV dongle based on AllWinner A10s that sells for $36.55 on Tinydeal.com which is a very good price, but decided to check on Aliexpress to look for comparable deals, and found one shop selling MK802 II for $34.91 including shipping via China Post, which makes it cheaper than the Raspberry Pi model B selling for $35 excluding shipping. Both products target 2 different markets, as MK802 is oriented to the consumer market, and Raspberry Pi targets the educational market, but in practice, it appears people […]

December 20, 2012December 21, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Digia and the Qt Project Release Qt 5.0

The Qt Project and Digia have announced the release of Qt 5.0, which is available via Qt 5.0 page on qt-project.org, or via qt.digia.com/qt5 for commercial customers. Qt 5.0 comes as a full SDK package including Qt 5 framework, Qt Creator 2.6.1, examples and full documentation. Qt 5.0 is available in source code and binary format for Linux (64 and 32 bit), Mac OS X (10.7 and 10.8), and Windows. You can read more about the main changes and new features compared to Qt 4.8, on my previous blog post about Qt 5 Alpha. A video showcasing some of the key features of Qt 5 has been uploaded to Youtube. The video above is actually a screen capture of a Qt 5 based application using Qt Quick, OpenGL and WebKit, running in a Mac. Audio has been added with iMovie application. You can try this Qt 5 Launch Demo by yourself by […]

December 19, 2012December 19, 2012 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

3.95 Euros RPI-UEXT Breadboard & UEXT Adapter for Raspberry Pi is Now Available

Last month, I wrote about an upcoming T-shaped adapter for the Raspberry Pi that can easily plug into a breadboard, and provides a UEXT connector that can bring new features (RTC, GPRS, sensors, relays…) to the Raspberry Pi via low cost external UEXT modules. Olimex has just announced the RPI-UEXT adapter is now available for 3.95 Euros. To connect RPI-UEXT adapter to the Raspberry Pi, you’ll need to purchase a 26-pin ribbon cable and a breadboard if you don’t have these already. Olimex provides those 2 for respectively 2 & 2.95 Euros. That means a complete set would cost 8.90 Euros. As discussed on my first RPI-UEXT post, what makes this little board really interesting are all the existing UEXT modules (over 20) that bring new features at very low cost. Olimex uploaded a video showing the Raspberry Pi, the RPI-UEXT and the MOD-IO UEXT module connected together, with the Raspberry […]

December 17, 2012December 17, 2012 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

libavg on Raspberry Pi

libavg development team has recently announced a beta port of their multimedia library to the Raspberry Pi. libavg is a high-level development platform for media-centric applications using Python as scripting language and written in C++. I came to know this platform as I tried Xibo Digital Signage, and I tested it on ARM platforms. Up to know this would only work using software rendering/decoding, and everything was painfully slow on ARM, but libavg developers are now making use of OpenGL ES to boost graphics speed. More work is needed, and they intend to eventually support features such as hardware video decoding (OpenMAX possibly via gstreamer) and compressed textures. Installing libavg on Raspberry Pi. Pre-built packages are available for Raspberry, so installation is pretty straight forward:

sudo apt-get install libxml2 libpango1.0-0 librsvg2-2 libgdk-pixbuf2.0-0 \
  libavcodec53 libavformat53 libswscale2 libboost-python1.49.0 \
  libboost-thread1.49.0 libsdl1.2debian libxxf86vm1
wget https://www.libavg.de/site/attachments/download/190 -O libavg-raspberry.tar.bz2
sudo tar -C /usr/local -xjf libavg-raspberry.tar.bz2

sudo apt-get install libxml2 libpango1.0-0 librsvg2-2 libgdk-pixbuf2.0-0 \

libavcodec53 libavformat53 libswscale2 libboost-python1.49.0 \

libboost-thread1.49.0 libsdl1.2debian libxxf86vm1

wget https://www.libavg.de/site/attachments/download/190 -O libavg-raspberry.tar.bz2

sudo tar -C /usr/local -xjf libavg-raspberry.tar.bz2

Running Samples Apps 32 samples are located in /usr/local/lib/python2.7/dist-packages/libavg/samples/ directory, and they rely on X11, so first start LXDE:

startx

startx

Open a serial console (LXTerminal) […]

December 15, 2012December 15, 2012 by Jean-Luc Aufranc (CNXSoft) - 22 Comments

SliTaz armhf: 46MB Linux Distribution for Raspberry Pi

SliTaz armhf is a minimal Linux distribution based on SliTaz Linux, that uses the hard-float ABI for the Raspberry Pi. The compressed SD card image is 46M, the rootfs 18.6 MB, and Slitaz uses just about 7 MB RAM after boot. Slitaz armhf rootfs comes pre-loaded with the following packages: busybox 1.20.2 dropbear 2012.55 – Light SSH client and server. nano 2.2.6 – GNU Nano Text Editor. retawq 0.2.6c – Text mode Web browser. tazpkg 5.0 – SliTaz packages manager (Tiny autonomous zone packages manager). ytree 1.97 – file manager for file and archives. Slitaz armhf comes with tazpkg package manager which allows to install packages just like you would do with apt-get in Raspbian. There are over 3,300 packages available for Slitaz (x86), and for now, over 250 packages are available for Slitaz armhf. Let’s get try it out. First, download slitaz-armhf-mini-2012-12-14.zip, extract it, and copy it to an […]

December 9, 2012May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 31 Comments

Cubieboard Unboxing and Quick Start Guide

I’ve received another cool board this week with the Cubieboard development board. As a quick reminder, the Cubieboard is the only proper low cost AllWinner A10 development board available, and comes with 512MB/1GB RAM, 4GB NAND Flash, 10/100 MBit Ethernet, HDMI output, 2x USB Host port, 1x USB OTG port, a microSD socket, a SATA interface, an IR sensor and 2 headers to access extra pins such as GPIOs, I2C, SPI,VGA pins, CVBS pins etc… CubieTech had a successful Indiegogo campaign where the 1GB board was available for $59 including worldwide shipping (and as low as $19 for early birds), and you can now buy it from resellers. [Update: It’s now available with several cables, USB to TTL debug board, and an enclosure for $80 on dx.com] Cubieboard Unboxing The board comes with a SATA cable and a USB cable for power. There’s no power supply so you’ll need you […]