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

October 7, 2015October 7, 2015 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Roku 4 Media Player Supports H.265 and VP9 4K Videos, 7.1 Channel Audio Pass-through

Roku has announced the latest version of their video streaming player. Roku 4 comes with a faster quad core processor, supports H.265 & VP9 video playback up to respectively 2160p60 and 2160p30, and includes a new version of Roku operating systems. Roku 4 specifications: SoC – Unnamed Quad core ARM processor with OpenGL ES 2.0 capable GPU System Memory – 1.5GB RAM Storage – TBD internal storage – micro SD slot Video Output – HDMI 2.0 up to 3840×2160 @ 60Hz with HDCP 2.2 support Audio Output – HDMI or optical S/PDIF with support for Dolby Digital Plus 7.1 surround pass-through Video Codecs – 4K UHD 60 fps HEVC Playback, 4K UHD 30 fps VP9 Playback (YouTube) Connectivity – 802.11ac MIMO dual-band wireless, 10/100 Base-T Ethernet USB – USB host port Power supply – 12V/1A Power consumption – 12.4W (typ.) when streaming 4K UHD video Dimensions – About 16.5 x […]

October 6, 2015October 6, 2015 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Google Releases Android 6.0 Source Code and Factory Images for Nexus Devices

Google has pushed Android 6.0 source code to AOSP (Android Open Source Project), and released factory images (MRA58K) for Nexus 6 & Nexus 5 smartphones, Nexus Player, as well as Nexus 9 and Nexus 7 (2013) tablets. You can retrieve the code with the usual repo tool:

repo init -u https://android.googlesource.com/platform/manifest -b android-6.0.0_r1
repo sync

1 2	repo init -u https://android.googlesource.com/platform/manifest -b android-6.0.0_r1 repo sync

Some of keys changes are listed on Android Source microsite and include Doze and App Standby to save battery, new authentication interface sich as Fingerprint, Gatekeeper, and Keymaster, adoptable storage, Bluetooth stylus support, and more. If you want a more detailed changelog at the source code, Opersys got you covered by listing all differences between 5.1.1_r24 (LMY48W) to 6.0.0_r1 (MRA58K) with newly added components, removed components, and modified components. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in […]

October 6, 2015October 6, 2015 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

ZeroPi is an Arduino & Raspberry Pi Compatible Motor Control Board (Crowdfunding)

Pi boards keep on coming… As soon as I finished writing about Roseapple Pi board, yet another one popped out on my twitter feed… But that one is of a different kind, as it won’t run Linux, but instead the board is powered by an Atmel SAMD21 Cortex M0+ micro-controller, and can support lots of electric motors including up to 11 micro servos and 8 DC motors – or 4 stepper motors – simultaneously. ZeroPi board specifications: MCU – Atmel SAMD21J18 ARM Cortex M0+ @ 48 MHz with 32 SRAM and 256KB flash I/O pins via 33-pin header, 4-pin temperature sensor, and 10-pin Raspberry Pi header 35 GPIOs 4x 12-bit ADC channels 1x 10-bit DAC 2x UART 2-channel temperature sensor interface DC current per I/O pin- 7mA DC / Stepper Motor control – 4x 4-channel SLOT interface compatible with common parts such as DRV8825 or A4988 Stepper motor driver and […]

October 6, 2015 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Kinoma HD is $25 TV Stick Devkit Based on Marvell ARMADA 1500 Mini Plus Processor

Marvell has just revealed that ChromeCast 2.0 & Audio featured their ARMADA 1500 Mini Plus (88DE3006) processor with two ARM Cortex A7 cores, coupled with 512 MB RAM, and Avastar 88W8887 wireless solution with WiFi 802.11 b/g/n/ac, Bluetooth 4.1, NFC and FM radio. But a comment on Anandtech lead me to a development kit based on 88DE3006 I missed while I was away: Kinoma HD. Preliminary hardware specifications: SoC – Marvell ARMADA 1500 Mini Plus (88DE3006) dual core Cortex A7 @ 1.2 GHz with 3D GPU supporting OpenGL ES 1.1/2.0, Qdeo video engine System Memory – 256 MB RAM Storage – TBD Video Output – HDMI output of 1080p/720p Connectivity – Wi-Fi g/n/ac Power Supply – 5V via micro USB port Apart for the lower memory capacity (256MB vs 512MB), Kinoma HD hardware looks pretty similar to ChromeCast 2.0. But the main difference is in the software, as while ChromeCast […]

October 6, 2015October 7, 2015 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

Roseapple Pi Board Powered by Actions Semi S500 Comes with 2GB RAM

[Update: I’ve finally received an answer: Lemon Pi and RoseapplePi makers are different companies, but they just happen to both use the same Actions Semi S500 reference design, and RoseapplePi is manufactured in Taiwan. The picture above is V1.0 board, but V1.1 will have some modifications] Lemon Pi development board was launched this May via a Indiegogo campaign. The board, based Actions Semi S500 quad core Cortex A9 processor, got fully funded by over 200 backers, but at the time of launch, some people questioned the used of the word “Lemon” in a product name, as it has several pejorative meanings, including “something that is useless or crappy”. I was contacted about a new Roseapple Pi board yesterday, and upon checking out the details, it looks exactly like the Lemon Pi, except it got upgraded to 2GB RAM, just like in Indiegogo… The board name on the PCB also reads […]

October 5, 2015 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

AMS AS7000 Biosensor is Designed for Strapless Optical Heart Rate Monitors

Heart rate monitors (HRM) with chest straps are now being replaced by more comfortable strapless HRM, such as UWatch UX. These products are enabled by photoelectric sensors that sample light modulated by blood vessels, which expand and contract as blood pulses through them. One of such solutions is the recently introduced AMS AS7000 including a Cortex M0 core, and a DSP implementing algorithm to process raw photoplethysmography (PPG) readings from the sensors to convert them into digital HRM and HRV (Heart Rate Variability) values. Highlights of AS7000 Biosensor: MCU – ARM Cortex M0 with 4KB RAM, 32 KB EEPROM I/Os – 9 GPIOs, UART, SPI, I2C Analog electrical and optical Frontends Hardware sequencer Synchronous detector Integrated LEd driver with current control Optical filters Supply Voltage – 2.6 – 3.6V Temperature Range –30 to 70°C Package – 18 pins AS7000 can deliver greater accuracy when it is paired with an external […]

October 5, 2015October 5, 2015 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Zidoo X6 Pro Unboxing and Teardown

There are so many Rockchip RK3368 TV boxes on the market that it’s difficult for products to stand out. But Zidoo X6 Pro might be one of these products bringing a little more, as beside frequent firmware updates, Zidoo’s RK3368 TV box may be the first to officially run Kodi 15.x, while most others manufacturers have decided to stick with Kodi 14.2 in their latest firmware, and the company also released Kodi source code modifications for 7.1 audio pass-through, 3D MVC support, and hardware video decoding in compliance with Kodi’s GPL license. As usual, I’ll start by taking some pictures of the device and board, before writing a full review in the next few days. Zidoo X6 Pro Unboxing I got the following package via DHL, which somehow decided to take my picture as I received the parcel… The package includes some of the key features of the device include […]

October 5, 2015October 5, 2015 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

ATT7039AU Micro-controller Features an Energy Meter Unit for Power Meters

About two years ago, I purchased Northwest T8 power meter, and it worked fine for about three months, but one day the top plastic broke as as unplugged it, rubber bands prolonged its life for a few more weeks, but eventually the display stopped working, and keep it in my drawer for long while, until today, when I decided to have a closer look at how it was done. The PCB is called CZ-7039-B2, and the top includes the display, 4 user buttons, as well as JTAG through holes (P2) and 2.54mm header (P1) with TDO, TMS, GND and 3.3V signals, as well as a pin called P1600, but I still haven’t found out what it might be for. I’ve also taken the board out completely, to find out everything is basically handled by a single 48-pin chip called ATT7039AU. After a Google search, I quickly found out the chip […]