wifi

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on $20 MediaTek LinkIt 7687 Arduino Compatible WiFi IoT Board Runs FreeRTOS

$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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 14 Comments on Zidoo X1 II 4K Android TV Box (Rockchip RK3229) Review

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on $35 Arduino MKR1000 Board is Powered by Atmel ATSAMW25 WiFi Module

$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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Learn How to Build Your Own Open Source Hardware ESP8266 Smartwatch

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on $15 RobinCore WiFi IoT Module Runs OpenWrt, Supports 720p Video Encoding (Crowdfunding)

$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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on WeKast is a HDMI & VGA Wireless Display Dongle for Business Presentations (Crowdfunding)

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on The First Devices and Routers with WiFi 802.11ad Delivering Up 7Gbit/s Transfer Rates at 60 GHz Will Be Available This Year

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 13 Comments on Zidoo X5 TV Box Review

Zidoo X5 TV Box Review

Zidoo X5 is TV box running Android 5.1 powered by Amlogic S905 processor like so many competing products on the market. I’ve already listed the full specs and taken pictures of the Zidoo X5 case and hardware, so today we’ll see how the device performs against the many Amlogic S905 mini PCs I’ve reviewed so far, and if it fixes some common bugs. First Boot and First Impressions Before starting the media player I’ve connected all cables and made sure to fill the two USB ports with a bunch of peripherals including a 1TB hard drive, keyboard, webcam, and so on. There’s no power button, and the device boots immediately once you connect it to the mains, with a standard boot time being around 40 seconds. The company has used the exact same Zidoo launcher as in their X6 Pro TV box, however they’ve decided to use a 1280×720 framebuffer, […]

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