Video Category - Page 287 of 327 - CNX Software

February 16, 2013February 16, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

ARM big.LITTLE Processing Demo (HMP) on ARM TC2 Test Chip

Samsung launched Exynos 5 Octa at CES 2013. This processor comes with 8 cores: 4 Cortex A15 cores and 4 Cortex A7 cores, and it’s the first processor that’s been announced to work in big.LITTLE configuration, where the big cores (A15) handle demanding tasks, and the LITTLE cores (A7) handle simpler tasks such as audio playback or background tasks. This is all done to optimize power consumption. There are 2 big.LITTLE software implementations: In-kernel switcher (IKS) and heterogeneous multi-processing (HMP). The first one is easier to implements but can only use 4 cores (in Exynos 5 Octa) at a time, and the second is more complex, but can handle all 8 cores, and assign individual tasks to a particular core. For more technical details about big.LITTLE implementations, you can read my previous post. ARM and Samsung recently uploaded a video providing an overview of big.LITTLE (but instead of IKS and […]

February 14, 2013July 21, 2023 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Open ARM GPU Drivers FOSDEM 2013 Video and Call to ARM Management

As I previously wrote, FOSDEM organizers are slowly uploading FOSDEM 2013 videos. One of the most interesting talk “Open ARM GPU Drivers” is now available. I’ve also uploaded it to YouTube (embedded below) to give it more exposure. Luc Verhaegen has also written a recent blog post entitled “Hey ARM!” where he announces the release of the modified source for Quake 3 Arena demo, and asks ARM to join them in making an open source driver. Open ARM GPU Drivers @ FOSDEM2013 This session covers the following key points: Problem – Binary drivers are mainly designed to run in Android, and it’s very difficult to have proper GPU drivers for Linux, and companies are not interested to release open source drivers or even just documentation, as they are not convinced it will benefit them in any way. Legal – This is actually the main issue, as open sourcing existing driver […]

February 12, 2013February 18, 2013 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Lernstift – Linux Based Learning Digital Pen

Lernstift UG, a German startup, is working on a digital pen, called Lernstift as well, that can help children learning how to write by vibrating in case of errors. The Lernstift can be used in 2 modes: Calligraphy Mode – Pointing out flaws of form and legibility. Orthography Mode – Detecting orthographic (1 vibration) and grammatical (2 vibration) mistakes. Since it features a ballpoint, it can be used as a real pen, you know to write on paper…, but you can also write in the air, so I suppose they’ll also make a version without ballpoint, so that kids can enjoy one of their favorite pastimes: writing on the walls! The pen features a CPU module (2) that’s used to handle handwriting recognition, gather data from the motion (1) and pressure (3) sensors, and manage the Wi-Fi module (4). A battery, a power switch, and a pen refill complete Lernstift […]

February 9, 2013February 9, 2013 by Jean-Luc Aufranc (CNXSoft) - 44 Comments

Tronsmart Prometheus Review

Now is the time to review another device sent to me by Geekbuying. Tronsmart Promotheus is an Android 4.1 Android set-top box powered by AMLogic AML8726-MX (aka AML8726-M6) with 1GB RAM and 4GB Flash, 3 USB ports, as well as Wi-Fi and Ethernet for connectivity. This device, which looks like a spaceship (my wife said it looks like a buffalo), has the potential to run XBMC with full hardware acceleration in Android and/or Linux. Tronsmart Prometheus Unboxing I’ve received the box in the package below. Apart from Promotheus media player, the package contains a 12V/1A power supply, an HDMI cable, an AV cable and a user manual in English that appears to be useful for once. It explains how to connect to device to the TV, to the networks, and to the power, how to do firmware upgrade, and how to troubleshoot it. It is presented in a way that […]

February 8, 2013February 8, 2013 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Linux Conference Australia and FOSDEM 2013 Videos are Now Online

FOSDEM 2013 took place last week, and the organizers are in the process of uploading videos. Up to now, 5 main tracks sessions have been uploaded (Firefox OS; Free, open, secure and convenient communications; FreedomBox 1.0; Samba 4; and systemd, Two Years Later) as well as over 20 lightning talks. You can find the videos at http://video.fosdem.org/2013. You may also want to check my previous post for a lists of interesting talks, and I’ll probably feature some FOSDEM 2013 videos in this blog, at least the open source GPU driver talk. Linux Conference Australia took place on January 28 – February 1, 2013, and the 5-day conference featured lots of talks including several dealing with graphics in Linux, and one developer apparently trashing X in terms of complexity and performance, and explaining how Wayland was better. Others Linux sessions dealt with subject such as 3D printing, supercomputing, Arduino, big.LITTLE processing, […]

February 7, 2013February 8, 2013 by Jean-Luc Aufranc (CNXSoft) - 26 Comments

Review of Measy U2C Rockchip RK3066 Mini PC With Built-in Camera

I’ve received 2 new devices to play with this week, as Geekbuying sent me Tronsmart Promotheus set-top box and Measy U2C, a mini PC with a webcam, so that I can test and review them. Today, I’ll leave the “Spaceship” set-top box parked in another galaxy, and I will review Measy U2C mini PC. This HDMI dongle is powered by Rockchip RK3066, runs Android 4.1.1, and comes with 1 GB RAM, 8GB Flash, Wi-Fi & Bluetooth connectivity, and a built-in 2MP Webcam. For complete specs, you can check my post about B12 mini PC since this device uses the same board internally. Geekbuying sells this all-in-one mini PC for $74.99 including shipping. As usual, I’ll post some unboxing pictures, and then review the device, this time, with a section dedicated to the webcam, since this is the key selling point of this mini PC. Measy U2C Unboxing Measy U2C comes […]

February 4, 2013 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Crazyflie Nano Quadcopter Open Source Development Kit

If you can’t wait until 2014 to get the MeCam, Seeedstudio has something for you: The Crazyflie Nano Quadcopter, which looks similar to the MeCam, but does not feature a camera, its control board is powered by STM32F103CB MCU @ 72 MHz with 128kb flash and 20kb RAM (so, no it won’t run Linux), and at $173 the price is significantly higher. Here are Crazyflie key features: Small and lightweight, around 19g and about 90mm motor to motor Flight time up to 7 minutes with standard 170mAh Li-Po battery Standard micro-USB connector for charging which takes ~20min for the stock 170mAh Li-Po battery On-board low-energy radio@1mW based on the nRF24L01+ chip. Up to 80m range (environment dependent) when using the Crazyradio 2.4 GHz USB dongle Radio bootloader which enabled wireless update of the firmware 32 bit Cortex M3 MCU: STM32F103CB @ 72 MHz (128kb flash, 20kb RAM) 3-axis high-performance MEMs […]

February 2, 2013February 2, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Replicate CAPE Adds 3D Printring Capability to the Beaglebone

Beagleboard.org launched the Beaglebone Cape Design Contest back in November, several designs were submitted, and yesterday, they announced the 3 winning CAPEs who will be manufactured and sold by Circuitco Electronics: Replicape by Elias Bakken – 3D printer cape Interacto by Chris Clark – Cape with a triple axis accelerometer,a gyroscope, a magnetometer and a 640×480 30fps camera. Geiger cape by Matt Ranostay – Geiger counter cape Since today I’ve started to write about 3D printing, let’s carry on and have a closer look at the Replicape. The Replicape 3D printer cape includes: 5 stepper motors (X, Y, Z, Ext1, Ext2) 3 high power MOSFETs (PWM controlled) for 2 extruders and 1 HPB 3 medium power MOSFETs (PWM controlled) for up to 3 fans 3 analog input ports for thermistors 3 inputs for end stops (X, Y, Z) Programmable current limits on steppers motor drivers (SMD). No need to manually adjust […]