CNXSoft – Embedded Systems News

Most TV boxes run a modified version of Android operating system for smartphone, and devices based on Google’s Android TV are harder to find, and often country specific since they are tied to local streaming services. Yesterday, I was searching for boxes based on Marvell Armada 1500 Ultra SoC, and first found a couple in Spain and the US, but eventually found a bunch more when I discovered somebody was keeping track of all/most Android TV devices in a page hosted by Google but with no actual affiliation with Google. The devices are sorted in three categories: Pay TV Providers, usually only sold in a specific country with programs in the local language, and a fairly long list Streaming / Gaming – Those are the most famous Android TV TV boxes like Xiaomi Mi Box or Nvidia Shield Android TV with only 6 models in that list TVs with Android TV OS The first list is probably the most interesting…

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Marvell unveiled 88W8987xA wireless SoC for V2X (Vehicle to Everything) applications supporting 802.11p WiFi, and DSRC (Dedicated Short Range Communications) last June, but NXP has recently launched Roadlink SAF5400 which it claims to be the world’s first “automotive qualified, high-performance single-chip DSRC modem” Key features for Roadlink SAF5400: Compliant with IEEE 802.11p, IEEE 1609.4 Compliant with: ETSI EN 302663 – Intelligent Transport Systems (ITS); Access layer specification for Intelligent Transport Systems operating in the 5 GHz frequency band ETSI EN 302571 – Intelligent Transport Systems (ITS); Radiocommunications equipment operating in the 5 855 MHz to 5 925 MHz frequency band; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive Compliant with ARIB T-109M – 700 MHz Band Intelligent Transport Systems Single channel handling for 802.11p reception/transmission. Includes Channel Switching Optional ECDSA verification: 2000 messages/sec (Brainpool/NIST curves 256 bits) Qualified in accordance with AEC-Q100 grade 2 Host interface – SPI, R(G)MII Ethernet, or SDIO The solution will…

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Apple recently released iPhone X, but at close to $1,000 it’s not for everybody. If you want the “social status” that comes with owning the thing, but have limited budget, and/or find spending $1,000 on a phone is ridiculous, Goophone has prepared Phone X smartphone for you that externally looks like an iPhone X, and only sells for around $105 and up. It just comes with 8 or 16 GB flash, and 2G/3G connectivity, but don’t you worry losing face in front of your friends, as it has a fake 4G LTE mode, and reports 64GB flash storage. Social life saved! Goophone Phone X specifications:   SoC – Mediatek MT6580 quad core ARM Cortex A7 processor @ up to 1.3 GHz with Mali-400 GPU System Memory – 1GB RAM Storage – 8 or 16GB  (shown as fake 64GB) + micro SD slot up to 64GB Display – 5.5 ” capacitive touch display with 1280×720 resolution Audio – Real 3.5mm headphone…

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Wemos introduced the first low cost ESP32 board with LOLIN32 board going for $6.90 plus shipping in April, but the company is now back with a new Lite version of the board switching ESP-WROOM-32 module with their own design around ESP32 Rev 1 chip (with various silicon bug fixes), and a lower $4.90 price tag to which you need to add ~$2 for shipping. Wemos LOLIN32 Lite is also smaller, so we’ll lose some of the pins (mostly extra power pins), but the I/Os look the same: SoC – Espressif ESP32-DOWD6Q Rev 1.0 dual core Tensilica Xtensa LX6 processor with WiFi and BLE Connectivity – 802.11 b/g/n WiFi + Bluetooth LE I/Os via 2x 13-pin headers with digital I/Os, analog inputs, UART, I2C, SPI, VP/VN, DAC… 3.3V I/O voltage Breadboard compatible USB – 1x micro USB port for power and programming/debugging Misc – Reset button Power – 5V via micro USB + battery header for Lithium battery (charging current: 500mA…

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Intel unveiled the Compute Card at the very beginning of the this year, without that many details, except it would included a 7th Gen Intel Core, memory, storage and wireless connectivity, and connect compliant dock with a new standard connector featuring USB-C and extra I/Os. Later this year, we learned more details about some Apollo Lake and Kaby Lake Compute Cards including specifications and block diagram. However those cards won’t be of any use without docks, and while NexDock promised a laptop dock for the cards, I have not seen any other announcements, but we now have some info about Intel’s own Compute Card dock that looks like a mini PC as the company released technical specifications and user manuals for DK132EPJ dock, and three Compute Card SKUs.   Intel Compute Card Dock DK132EPJ specifications: CPU, Memory, Storage, Wireless – Via slot supporting certified Intel Compute Cards Video Output – HDMI and mini DisplayPort USB – 3x USB 3.0 ports Connectivity –…

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Over the last few years, I’ve written several article about LoRaWAN, Cellular IoT, and Sigfox based long range low power IoT solutions. DASH7 is another LPWAN (Low Power Wide Area Network) standard that operates on the same 868 and 915 MHz ISM bands as LoRa and Sigfox, but has much lower power consumption, and the cost of a shorter range up to 500 meters, instead of the 5+km associated with LoRa or SigFox. The DASH7 Alliance Protocol (D7A) is an Open Standard, and if you want more details you can download version 1.1 of the specifications on DASH7 Alliance website. I’m writing about DASH7 today thanks to an article on ST blog about Wizzilab’s Wizzikit, an evaluation kit and framework for DASH7 with a gateway, and several nodes that can also optionally support LoRaWAN and Sigfox protocols. The kit is comprised of the following items: WizziGate GW2120 Ethernet/Wifi/Dash7 gateway – based on GL-iNet AR150 router –  with antenna for the selected band…

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USB power delivery allows for up to 100W charging using 20V @ 5A through a USB type C port, and the specifications also mandate supports for various voltages between 5V and 20V. However, some USB-C power adapter that not be fully compliant with the specifications, potentially risking to damage your device. USBCEE Tiny-PAT board has been created in order to test such power adapters to make sure they are compliant with USB PD 2.0/3.0 specifications. Tiny-PAT board features and specifications: Supported USB Spec Version – PD 2.0 / PD 3.0 Max Voltage: 24 V Max Current: 5 A Max Power: 100 W USB type C receptacle Misc – Fail and Pass LEDS, S4 mode button, through holes for VBUS & GND Power Consumption: ~10 mA (may vary based on voltage) Dimensions – 35 x 20 mm By default, the board will test all power rules advertised by the power adapter, measure the voltage (VBUS), and show whether the test failed…

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Last year, I wrote about Aeroscope, a portable Bluetooth oscilloscope that looks somewhat like a Stabilo Boss highlighter pen, and sends measurements over the air directly to your Android and iOS tablet or smartphone. It was introduced through a crowdfunding campaign which eventually failed, but Aeroscope can now be purchased for $199 on Amazon US or their own website. If you’d prefer WiFi over Bluetooth, and would like something that also works on Windows, Linux, and/or Mac OS X, IKALOGIC has just launched IkaScope WiFi oscilloscope probe compatible with all popular mobile and desktop operating systems. IkaScope WS200 specifications: Analog Bandwidth  – 30 MHz @ -3dB Sample Rate – 200 MSps Connectivity – 802.11 b/g/n/e/i WiFi @ 2.4 GHz configurable as access point or station Input Range – +/-40 V range CAT1 Offset Range – +/- 20V to +/- 40V offset Input Impedance – 10MΩ || 14pF Input Contact – ProbeClick intelligent probe tip that will only start measurements upon…

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