Jean-Luc Aufranc (CNXSoft), Author at CNX Software - Embedded Systems News

July 27, 2012May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

Smallart U-Host mini PC Unboxing and Review

I’ve just received a Smallart Uhost mini PC based on AllWinner A10 from the “The Cubies hacker shop” on Aliexpress. The device features 1GB RAM, 4B flash, includes 802.11 b/g/n built-in, USB ports, HDMI output and a microSD card. It costs $70 including shipping. I received the device in the simple package below. There is a whole bunch of stuffs inside the package. A USB to mini USB cable for power and to connect the device to PC to act as a USB drive, the Smallart U-host mini PC itself, a user manual in English, the power supply 5V/2A with a USB port, an HDMI female to male cable. The USB to mini USB cable has actually 2 large USB connector in order to provide up to 5W power (2 x 500mA x 5V). The mini PC has several connectors including an HDMI male connector, a USB Host port (for […]

July 27, 2012July 27, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro 12.07 Release with Kernel 3.5 and Android 4.0.4

Linaro has released version 12.07 based on Linux Kernel 3.5-rc3 and Android 4.0.4. Some work has been done on Jelly Bean (but the port is for next month), several benchmark tools have been added to LAVA as Linaro wants to provide standard benchmarks for Android, Linaro ALIP image now uses LXDE by default with a smaller image and improved performance, and Open Embedded images are now available (minimal and LAMP stack). Here are the highlights of the release: Android Jellybean baselines for Galaxy and Panda with Linaro extra’s available Android Benchmarking apps were deployed for pandaboard, snowball and origen in LAVA including: vellamo, quadrant, nbench, linpack, glbenchmark, geekbench, caffeinemark, antutu, andebench Improved native Benchmarks variance on Android to 1%, working on Java variance ICS “tests” builds now produced by default and test lists generated Open overlay tarballs working pm-qa’s cpuidle cpufreq cpuhotplug sched_mc suspend integrated into the Android builds Linaro […]

July 26, 2012July 26, 2012 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

VIA Releases Kernel 2.6.32 and U-Boot Source Code for $49 APC Board

VIA Technology unveiled the low cost APC (Android PC) board based on WonderMedia WM8750 processor (ARM11) back in May, and started to ship the Android board this month (I think since that was their plan). The company has just released Kernel 2.6.32.9 and U-Boot source on github. Here’s how to retrieve the code provided git is already installed on your machine:

git clone git://github.com/apc-io/apc-8750.git

1	git clone git://github.com/apc-io/apc-8750.git

You can then build U-Boot (provided you’ve already installed an ARM toolchain in your path):

cd $CURRENT_PATH/u-boot
make wmt_config
make all

cd $CURRENT_PATH/u-boot

make wmt_config

make all

and the Linux kernel:

cd $CURRENT_PATH/kernel
make 8710_defconfig
make ubin

cd $CURRENT_PATH/kernel

make 8710_defconfig

make ubin

The availability of the source means we should see Linux distribution like Debian, Fedora or Arch Linux ARM (separate from Arch Linux) running on the board very soon. In theory, it’s also possible to run a Linux distribution with the binary Linux kernel compiled for Android, but it causes some issues and also makes customization more difficult. I think they should also have release the code they modified […]

July 26, 2012January 16, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

LinuxCon North America 2012 Schedule

LinuxCon (North America) 2012 will take place on August 29 – 31, 2012 at Sheraton Hotel & Marina, in San Diego, California. The event will be co-located with the Linux Kernel Summit, the Linux Plumbers Conference, and CloudOpen 2012. LinuxCon consists of 3 days of keynotes, business and developers related sessions as well as tutorials. There will be over 80 sessions and keynotes during those 3 days. I’ll highlight a few sessions that I find particularly interesting and related to embedded Linux, software development and ARM. August 29 10:45 – 11:30 – Life After BerkeleyDB: OpenLDAP’s Memory-Mapped Database by Howard Chu, Symas Abstract: OpenLDAP’s new MDB library is a highly optimized B+tree implementation that is orders of magnitude faster and more efficient than everything else in the software world. Reads scale perfectly linearly across arbitrarily many CPUs with no bottlenecks, and data is returned with zero memcpy’s. Writes are on […]

July 26, 2012July 26, 2012 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Discounted and Free Development Kits by Future Electronics and Texas Instruments

If you have a project in mind, Future Electronics and Texas Instruments are currently offering free development boards and 50% discounts on selected development kits respectively. Future Electronics Boards4Free Initiative In August, Future Electronics will be giving away 5 boards every Wednesday (20 boards in total). Here’s how it works: Every Wednesday at 12 pm EST from August 1 to August 22 Future Electronics will post a board on their Twitter, Facebook and Google+ feeds. Reply to them on Twitter, comment on their post on Facebook or comment on their post on Google+ with your project idea to enter into the contest. Each action counts as on entry, so you can get up to 3 entries Each weekly drawing period begins at 12 pm EST and ends at 12:30 pm EST. (So you’ve just got 30 minutes to enter, unless I missed something) Future Electronics will draw 5 winners and […]

July 26, 2012July 26, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

How to Get Free Hotel Rooms with An Arduino Board and a Resistor

Earlier this week, Cody Brocious (Daeken) gave a presentation at the Black Hat conference in Las Vegas showing how it was possible to hack and open hotel door locks (Onity HT lock systems), using an Arduino Mega 128 board, a 5.6 kOhm resistor and a DC barrel plug to physically mate with the lock (Total price: around $20). He explains that 4 million hotel rooms are fitted with this type of lock, which means you could potentially stay for free anywhere in the world. Obviously, you could also end-up in another type of room (including free food) for a longer period of time. That looks like a win-win situation to me 🙂 Each locks contain a 32-bit unique value (sitecode) that identifies a property, and is used for encryption. Cody’s Arduino’s based solution can communicate with the lock over a 1-wire communication protocol read memory to get the sitecode (no […]

July 25, 2012July 25, 2012 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

16 Euros Arduino Leonardo Board is Now Available

Arduino Leonardo is a new Arduino board with a 16 MHz Atmega32U4, 2.5KB RAM, 32 KB of Flash memory, 20 digital I/O, 12 analog inputs and 7 PWM outputs. In this version the MCU takes care of USB communication with the host, whereas for Arduino Uno, a separate chip is required to take care of this, which makes Arduino Leonardo cheaper than Uno. Here’s a summary of Arduino Leonardo specifications: Microcontroller – Atmel ATmega32u4 @ 16 MHz SRAM – 2.5 KB onchip (ATmega32u4) Flash Memory – 32 KB onchip (ATmega32u4) of which 4 KB used by bootloader EEPROM – 1 KB onchip (ATmega32u4) Operating Voltage – 5V Input Voltage – (recommended) 7-12V | (limits) 6-20V Digital I/O – 20 pins PWM – 7 channels Analog Input – 12 channels DC Current per I/O Pin – 40 mA DC Current for 3.3V Pin – 50 mA Watch the video to get […]

July 25, 2012July 25, 2012 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Qualcomm Snapdragon S4 Pro Mobile Development Platform Is Now Available for $1299

A few weeks ago, Qualcomm showcased their new Snapdragon S4 APQ8064 processor with their tablet reference design at Uplink 2012. The platform (Snapdragon S4 Pro Mobile Development Platform for tablets (MDP/T)) is now available to developers for 1299 USD. This development tablet based on APQ8064 processor with Adreno 320 GPU comes with 2GB LPDDR2 RAM and 32 GB flash, features a 10.1” WXGA Multi-touch display, and runs Android 4.0. It will allows developers and manufacturer to develop, test, optimize and showcase applications and games for a wide range of pre-commercial Android devices. Here are the technical specifications of the Snapdragon S4 Pro APQ8064 MDP/T: Processor APQ8064 @ 1.5 Ghz (Quad core) PM8921+ PM8821 (PMIC) WCN3360 (WLAN/BT/FM) WCD9310 (Audio) WGR7640 (GPS) Graphics Adreno 320 graphics processing unit (GPU) Display 10.1” 1366×768 display True multi-touch capacitive touch screen Video 1080 High-definition video recording and playback up to 30 frames per second Stereoscopic […]