Intel Atom Z3735F mini PC Power Consumption in Android

I’ve already measured power consumption running Antutu and playing a 4K video on Rockchip RK3288 and Amlogic S812 platform, as described in “Power Consumption of Amlogic S812 and Rockchip RK3288 TV Boxes“, and now that I have an Intel Bay Trail-T mini PC running Android 4.4 with Wintel W8, I was interested in comparing its power consumption to the ARM platform. [Update: I forgot to mention measurements have all been done @ ~5V.] The test normally consists in several steps: Boot the device Run the latest Antutu benchmark Connect a USB hard drive Play a 4K video in Kodi from the hard drive Diconnect the hard drive Power off the device But since the current draw was a little to high at times, I got a few issues with my setup. First, I had to boot twice hence the “Power On 1” and “Power On 2” strings on the chart, […]

Linux 4.0 Release – Main Changes, ARM and MIPS Architectures

Linus Torvalds “Ima Sheep” released Linux Kernel 4.0 on Sunday: So I decided to release 4.0 as per the normal schedule, because there really weren’t any known issues, and while I’ll be traveling during the end of the upcoming week due to a college visit, I’m hoping that won’t affect the merge window very much. We’ll see. Linux 4.0 was a pretty small release both in linux-next and in final size, although obviously “small” is all relative. It’s still over 10k non-merge commits. But we’ve definitely had bigger releases (and judging by linux-next v4.1 is going to be one of the bigger ones). Which is all good. It definitely matches the “v4.0 is supposed to be a_stable_ release”, and very much not about new experimental features etc. I’m personally so much happier with time-based releases than the bad old days when we had feature-based releases. That said, there’s a few […]

ARDHAT adds Arduino Shield Compatibility, an ISM Band Radio to Raspberry Pi and ODROID-C1 Boards (Crowdfunding)

NinjaBlocks created Pi Crust add-ons board adding a 433MHz radio and Arduino compatibility to the Raspberry Pi Model A & B a few years ago, but the product has since been removed from their store. But a startup called ubIQio has now created a similar product compatible with Raspberry Pi Model A+, B+ and B2, as well as ODROID-C1 which also comes with a 40-pin R-Pi header. The ARDHAT board is a HAT compatible add-on board with an Atmel MCU, Arduino headers, as well as an optional long range mesh ISM radio (433, 868 and 915 MHz) and various sensors. There are four versions of the board: Basic Ardhat, Ardhat-I, and Ardhat-W and Ultra, which share the following specifications: MCU – Atmel MCU @ 16MHz Headers and I/Os Arduino compatible header accepting 5V Arduino shields 12 ch PWM O/P, 6 ch analog I/P Real-time Clock Programmable Power/Navigation combo switch Programmable […]

Mygica ATV586 Amlogic S805 Android TV Box Comes with DVB-T2 or ATSC Tuner

One of the first quad core Android DVB-T2 receiver was VideoStrong K1 that now sells for $80 on Aliexpress, but there’s now some competition from Geniatech, with the same Amlogic S805 processor, thanks to Mygica ATV586 Android TV box featuring either a DVB-T2 or ATSC tuner. ATV586 Specifications: SoC – Amlogic S805 quad core ARM Cortex A5 @ 1.5GHz with quad core Mali-450MP GPU System Memory – 1 GB DDR3 Storage – 4 GB NAND flash + micro SD slot (up to 32GB) Connectivity – 10/100M Ethernet, 802.11 b/g/n Wi-Fi Video & Audio Output – HDMI 1.4 Video Codec – H.265, H.264 etc.. up to 1080p60 Tuner DVB-T & DVB-T2 standard with single input terminal (75 Ohm); Frequency – 48.25 – 863.25 MHz; Bandwidth: 6, 7 or 8 MHz ATSC also supported (with a different tuner) USB – 2x USB 2.0 ports Misc – IR sensor Power Supply – 5V/2A […]

Relative Performance of ARM Cortex-A 32-bit and 64-bit Cores

Many people assume newer processors will be faster, or that 64-bit processor will provide a performance boost compared to 32-bit processors, but the reality can be quite different, and I’ve decided to have a look at ARM Cortex-A cores using ARMv7 (32-bit) and ARMv8 (64-bit) architecture, and see what kind of integer performance you can expect from each at a given frequency. To do so, I’ve simply use DMIPS/Mhz (Dhrystone MIPS/Megahertz) values listed on Wikipedia. Drystone benchmark has no floating-point operating, so it’s a pure integer benchmark. I’m only looking at ARM core here, and once integrated in an SoC, other parameters like memory bandwidth, amount of cache,  GPU, etc.. will greatly affect the overall system performance. The figure above are per MHz, and it does not mean for example that a Cortex A5 processor will be slower than a Cortex A7 processor, as can be seen by the comparison […]

Mygica ATV1900AC Quad Core Media Player Runs Android 5.0 Lollipop

Geniatech has launched a new Amlogic S812 quad core media player that should be one of the very first to run the full version of Android 5.0. It comes with 2GB RAM, 16GB internal flash and fast connectivity options with a Gigabit Ethernet port and 802.11ac Wi-Fi with MIMO. Mygica ATV1900AC specifications: SoC – Amlogic S812 quad core cortex A9r4 @ 2 GHz with Mali-450MP6 GPU System Memory – 2GB DDR3 Storage – 16GB  eMMC flash + micro SD card reader Connectivity – Gigabit Ethernet, 802.11 b/g/n/ac Wi-Fi 2T2R Video Output – HDMI 1.4 Audio Output – HDMI, optical S/PDIF Video Codec – H.265 up to 4K2K, H.264, etc… USB – 4x USB 2.0 host ports Misc – IR receiver, reset pinhole, power button, network and power LEDs Power Supply – 5V/2A Dimensions – 168 x 132 x 21 mm Weight – 300 grams. The Android 5.0 Lollipop firmware will […]

Amlogic is Working on S905 and S912 64-bit ARM Cortex A53 Processors

The relatively popular Amlogic S805 and S812 Cortex A9 processors are soon going to be joined by Amlogic S905 and S912 processors, both featuring ARM Cortex A53 64-bit cores, with the former destined to entry-level media players, and the latter for higher end devices including 4K60 / HDMI 2.0 support, as well as H.265 and AVS+ hardware video codecs. The company is now showcasing its new processors at China Content Broadcasting Network Exhibition (CCBN) 2015 in Beijing until March 28. Details are sparse, but we still know a few features for the new Amlogic 64-bit ARM processors: CPU – Quad Core ARM Cortex A53 CPU @ 2.0 GHz with 512KB unified cache. GPU – S905: 5 core Mali-450MP to 750MHz with OpenGL ES 11./2.0 and OpenVG 1.1 support, unnamed 2.5D GPU S912: TBD Video – 4K@60 Hz video decoding 10-bit HEVC and AVS+ codec support; H.264 up to 4K 30 […]

Giveaway Week Winners Announced (March 2015)

The latest Giveaway week has come to an end, and I’m just coming back from the post office, having sent a few Android based TV boxes, a Linux development board, and one wireless audio streamer to the lucky winners. I’ve already announced winners daily in the comment section of each contest, but here’s the list again with the device, winners’ nickname and their country of residence: Nagrace HPH NT-V6 – Rizwan, Canada Vidon Box – bazsi, Romania RipplTV – driv3l, USA Freescale SABRE Lite – biasio95, Italy Vidon.me AV200 – cityF, Portugal HD18T – Sean, Canada SoundMate WM201 – Orel, France So people from Canada got lucky, but still no winner from Asia or Oceania. The parcel have been send via registered Small Packet Airmail, all the winners should receive them in a few weeks, and certainly I hope they’ll have fun enjoy with their devices. If you haven’t won […]

EmbeddedTS embedded systems design