wifi News - Page 88 of 111 - CNX Software

April 26, 2016April 26, 2016 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

MK808B Pro Android TV Stick Mini Review

MK808B PRO is the first Amlogic S905 TV stick readily available for sale, and GeekBuying sent me a sample for review. I’ve already checked out the hardware, and the lack of heatsink is a worry, so we’ll see how it performs in this mini review, where I’ll focus mainly on potential pitfalls, rather than do a throrough review as usual, since I’ve already tested so many Android TV boxes powered by Amlogic S905 processor First Boot, Settings, and First Impressions I’ve connected MINIX NEO A2 Lite air mouse RF dongle to the USB port, and Tronsmart Mars G01 wireless gamepad dongle to the mini USB port via the provided USB OTG adapter, and the provided HDMI cable to the AUX port of my AV receiver and nothing else, except the power adapter to the other mini USB port. Boot time typically takes about one minute that it’s not a speed […]

April 22, 2016 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

$20 MediaTek LinkIt 7687 Arduino Compatible WiFi IoT Board Runs FreeRTOS

MediaTek Labs has already launched several WiFi boards for IoT applications starting with LinkIt ONE, and later LinkIt Smart 7688 running OpenWrt, and the company is now about to launch LinkIt 7687 HDK (Hardware Development Kit) powered by Mediatek MT7687F Cortex-M4 SoC, running FreeRTOS, and developed & produced by Silicon Application Corp (SAC). LinkIt 7687 (WS3489) board specifications: SoC – MediaTek MT7687F ARM Cortex-M4F MCU @ 192MHz with 352 KB SRAM, 64KB ROM, and 2 MB serial flash in package, integrated security engine, and built-in 802.11n WiFi. 8×8 mm 68-pin QFN package Connectivity – 1×1 802.11 b/g/n WiFi with on-module PCB antenna and U.FL connector. USB – 1x micro USB for power, debugging (Coresight Debug Access Port + Virtual COM) Expansion Arduino Uno Rev. 3 headers + an extra 8-pin extension connector. Mass Storage Device (MSD) flash programming interface. Reserved headers for power consumption (current) measurement. Misc – LEDs for […]

April 11, 2016April 11, 2016 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

Zidoo X1 II 4K Android TV Box (Rockchip RK3229) Review

After skipping MXQ-4K TV box review due to severe issues with video playback, Zidoo X1 II is actually the first device powered by Rockchip RK3229 processor that I’ve fully tested. I’ve already taken pictures of the box, and opened it up to check the board in Zidoo X1 II unboxing and teardown post, and confirmed 4K videos could play pretty well from my USB hard drive using Zidoo Media Center after disabling Media Scanner process. So today, I’ll review other parts of the firmware, as well as video playback with ZDMC 16.0, Zidoo’s fork of Kodi 16.0. First Boot, Settings and First Impressions The device only has two USB ports, and I used one for a USB hard drive, and the other for RF dongles for MINIX NEO A2 Lite air mouse, a USB keyboard, and the RF dongle for Tronsmart Mars G01 gamepad via a USB hub. I also […]

April 6, 2016 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

$35 Arduino MKR1000 Board is Powered by Atmel ATSAMW25 WiFi Module

Arduino LLC has launched a new official Arduino board with MKR1000 board under the Arduino brand in the US, and Genuino brand in the rest of the world. The tiny board features Atmel ATSAMW25 SmartConnect module comprised of Atmel SAMD21 ARM Cortex-M0+ MCU, WINC1500 2.4GHz 802.11 b/g/n Wi-Fi chip, and ECC508 CryptoAuthentication device. MKR1000 specifications: MCU – Atmel SAMD21 Cortex-M0+ MCU @ 48 MHz with 32KB SRAM, 256 KB flash memory WiFi – 802.11b/g/n WiFi (2.4 GHz) via WINC1500 with 1×1 PCN antenna, support for SHA 256 certificates. I/Os 8x digital I/Os 12x PWM pins 1x UART, 1x SPI, 1x I2C 7x analog input pins 1x analog output pin 8x external interrupts Operating voltage – 3.3V DC Current per I/O Pin – 7 mA USB – micro USB port for power and programming Misc – RTC, power and charge LEDs Power Supply 5V only via USB or VIN pin Li-Po […]

March 28, 2016March 28, 2016 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Learn How to Build Your Own Open Source Hardware ESP8266 Smartwatch

ESP8266 might be the cheapest WiFi SoC for IoT application available, but it’s not really renowned for its power efficiency, and is often not considered the best choice for battery powered applications. This has not stopped Jeifa from developing a WiFi smartwatch based on the chip, and the 250 mAh battery used in the design is said to be good enough for 1 or 2 days of operation on a charge. Main components of Jeija’s ESP8266 smartwatch: SoC – Espressif ESP8266 with 32Mbit of flash memory Display – SSD1306 OLED Display, 128×64 resolution Connectivity – 802.11 b/g/n WiFi (via ESP8266) Sensor – Invensense MPU-9250 gyroscope, accelerometer, and compass Debugging / Programming – FT232RQ for USB communication Misc RV-3029-C2 Real Time Clock with alarm function, and temperature sensor 3x user buttons Vibration Motor Power 250mAh LiPo battery MCP73831 LiPo charger Dimensions – 35 x 39 x 11mm (board) He designed the […]

March 27, 2016 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

$15 RobinCore WiFi IoT Module Runs OpenWrt, Supports 720p Video Encoding (Crowdfunding)

Do you remember VoCore? It was a low cost OpenWrt WiFi IoT module based on Mediatek RT5350 processor, that had a very successful crowdfunding campaign managed by a single developer, and the project is still going strong with VoCore2 being in the works. Another developer had the idea of doing something similar but based on HiSilicon Hi3518 ARM9 processor with more memory and support for 720p video encoding making it suitable for HD drone camera, compact video cameras, and so on. Meet RobinCore. RobinCore specifications: SoC – Hisilicon Hi3518E ARM926 processor @ 440MHz with H.264 encoder(720p@30fps) System Memory – 64MB DDR2 Storage – 16 MB NOR flash Connectivity – 802.11 b/g/n WiFi via Mediatek MT7601U with on-board chip antenna Debugging – micro USB port Expansion – 2x 30-pin 2.0mm pitch through holes with access to 10/100M Ethernet, UART, I2C, SPI, SDIO, ADC, PWM, JTAG and GPIOs Power Support – 5V […]

March 23, 2016 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

WeKast is a HDMI & VGA Wireless Display Dongle for Business Presentations (Crowdfunding)

You have already many options to mirror your mobile device’s screen to a big TV or projector with Chromecast, Miracast adapters, or EZCast dongles. However, if you want to connect it to a projector with a VGA connect you’ll need a separate HDMI to VGA adapter, and some devices may require Internet access, which you may or may not have during your presentations. WeKast dongle have been designed to simplify the process of setting up your presentation on any premises with HDMI and VGA output, and no requirement for WiFi connectivity. Simply copy your presentation on your smartphone, connect the dongle, and you’re ready to get started using WeKast app on your Android or iOS smartphone. WeKast hardware specifications: CPU – 1.6GHz processor System Memory – 1GB RAM Connectivity – 802.11 b/f/n with WPA2 enterprise security Video Output – Female HDMI and female VGA ports USB – 1x micro USB […]

March 7, 2016May 19, 2016 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

The First Devices and Routers with WiFi 802.11ad Delivering Up 7Gbit/s Transfer Rates at 60 GHz Will Be Available This Year

802.11ad is the latest and fastest WiFi standard working in the 60 GHz band and delivering up to 7 Gbit per second data transmission rates. The 60 GHz frequency band offers both advantages and disadvantages because it does not penetrate through walls nor water, meaning it can only be used within a room limiting the range, but at the same time it’s more secure since it cannot be snooped from the outside, and for people who worry about health effects it does not penetrate the human body. 802.11ad routers will also be able to switch to 2.4 and 5.0 GHz frequency bands in order to go through walls. The table above nicely summarize the key features of 802.11ad over 802.11ac and 802.11n, however the throughput row shows the theoretical maximum throughput, but in practice, using 802.11ac as example, clients are often limited to 433 or 866 Mbps, and distance and […]