802.11ac WiFi is now found in many routers and devices, and the Wi-Fi alliance has so far certified close to 3,000 “Wi-Fi CERTIFIED ac” products. I understand that certification is not mandatory, but if you want to make sure a device works well, the certification at least means the devices have been tested for interoperability, security and application specific protocols, and found to work in a satisfactory manner. Now the Wi-Fi alliance has announced Wi-Fi CERTIFIED ac Wave 2 certification program with the following new requirements: MU-MIMO (Multi-user Multiple Input Multiple Output) in order to send data to multiple devices at once to improve overall network efficiency and throughput 160 MHz channels support (not only 80 MHz) potentially doubling transmission speeds Four spatial streams instead of just three spatial streams. Extended 5 GHz channel support by adding more channels in the 5 GHz to reduce interference and congestion. Currently the […]
$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 […]
Xiaomi Mi WiFi 3 Router Unboxing, Teardown, and Serial Console
Mi WiFi 3 is the new low cost 802.11ac WiFi router by Xiaomi that sells for about $40. GearBest send my one sample for evaluation, and today, I’ve taken some photo of the device and board, and connected the UART pin to see if the serial console was accessible for people who want to try to port OpenWrt for example. Xiaomi Mi WiFi 3 Unboxing There’s some information on the package, but everything is in Chinese, except the part about AC1200 meaning it supports up to 867 Mbps with 802.11ac and 300 Mbps using 802.11n. The router comes with a 12V/1A power supply, and a user’s manual in Chinese only. There’s also a QR code inside the box linking to the Android and iOS apps, available both in English and Chinese, so actually that one of the few Xiaomi product that should be easy to use outside of China without […]
Xiaomi Mi WiFi 3 AC1200 Router Gets 128 MB Storage, Sells for $40 Shipped
The first Xiaomi Mi WiFi router brought the cost of 802.11ac WiFi to the masses, and it is now selling for less than $30 including shipping, but the company has now launched Xiaomi Mi WiFi 3 router with some improvements, including a total of 4 antennas and more storage, and sold on e-retailer such as GearBest and GeekBuying for just under $40. Xiaomi Mi WiFi 3 router specifications: Wi-Fi SoC – Mediatek MT7620A @ 580MHz System Memory – 128 MB DDR2 Storage – 128 MB SLC NAND Flash Wi-Fi Protocols – IEEE 802.11a/b/g/n/ac Transmission Rate – 300Mbps max @ 2.4GHz 2X2 MIMO, 867 Mbps max @ 5GHz 2X2 MIMO Wireless Security – WPA-PSK/WPA2-PSK encryption, wireless access control (black and white list), SSID hiding 2.4 GHz Channels: 1,2,3,4,5,6,7,8,9,10,11,12,13 5 GHz Channels: 149,153,157,161,165 5 GHz DFS (dynamic frequency selection) channels: 36,40,44,48,52,56,60,64; 4x external antennas Ethernet – 2x 10/100M Ethernet (LAN), 1x 10/100M […]
Free and Discounted Development Boards: Raspberry Pi 3, DragonBoard 410c, LinkIt ONE and More
Based on the number of comments I get when I organize giveaways, I think people like freebies. I don’t have anything to give away today, but others have launched competitions to win free developments, and Seeed Studio is having a promotional event with some discount on IoT boards. DragonBoard 410c Boards “Maker Month Contest” Qualcomm has declared March as Maker Month, and is asking developer to tell them what they’d make with a DragonBoard 410c board for a chance to win the board and up to $5,000. All you have to do is to submit your idea on DragonBoardContest.com, and every week, the company will give 7 to 10 boards (31 boards in total) to the people with the best ideas as selected by popular vote. The contest has two part: Part 1 – Submit your idea as mentioned above – Open between March 1 and March 31, is open […]
$98 Geek Force Mediatek MT7623 Router Board Features 6 GbE Ports, 3 mPCIe Slots for WiFi, 3G, or LTE (Crowdfunding)
We’ve seen a few interesting and relatively powerful router board launched last year, with the likes of MQMaker WiTi or Turris Omnia, AsiaRF has now designed Geek Force board powered by Mediatek MT7623N/MT7623A quad core network processor combined with 2GB RAM, six Gigabit Ethernet ports, and optional 802.11ac and 3G connectivity via the three mPCIe slots available on the board. The board also features two HDMI ports, and supports multimedia capabilities such as H.264, MPEG-2, or VC-1 hardware video decoding. Geek Force board preliminary specifications: SoC – MediaTek MT7623A or MT7623N quad-core ARM Cotex-A7 @ 1.3GHz with Mali-450MP GPU (MT7623N only) System Memory – 2GB DDR3 Storage – 2GB eMMC or NAND Flash + SD card slot up to 128 GB, and maybe SATA via the mPCIe slots Connectivity – 6 Gigabit Ethernet ports (WAN / LAN behavior defined by firmware), 802.11 b/g/n WiFi & Bluetooth 4.0 via MT6625L with […]
AudioCast M5 is a ChromeCast Audio Alternative with Local Audio Files and Multi-Room Support
ChromeCast Audio launched earlier this year together with ChromeCast 2.0 in order to bring ChromeCast experience specifically to audio files via your speakers or audio system. Wireless audio streamer are not exactly new, and I’ve reviewed a few including SoundMate WM201, and the company behind the SoundMate models, UyeSee, has launched a new AudioCast M2 wireless multi-room sound streamer that looks familiar… The main features of AudioCast M5 are listed as follows: Connectivity – 802.11 b/g/n with WPS button Audio Output – 3.5mm stereo jack Power Supply – 5V via micro USB port Multiroom streaming – Stream same song to all speakers, stream different songs to different speakers, stream same or different song to different group speakers using a single smartphone . Streaming from phone’s internal storage, UPnP/DLNA server, online music service including Spotify, Pandora, iHeartRadio, and more coming with Tital, Dezzer, GoogleMusic, Tunein, etc… Stereo Pairing – Turn two […]
WiTi Router Board Powered by Mediatek MT7621A SoC Now Sells for $79
MQmaker launched their WiTi router on Indiegogo in early August, and they raised close to $30,000, enough to go into production. However, some people are understandably wary of crowdfunding campaigns, and likely postponed their decision to see how the project would progress. The good news is that the AC1200 board is now available for $79 + shipping ($9.05 in my case) on Aliexpress. WiTi router specifications have not changed much: Processor – Mediatek MT7621A dual core MIPS 1004Kc processor @ 880Mhz System Memory – 256MB RAM Storage – 16MB SPI NOR flash for firmware, 1x micro SD slot, and 2x SATA 3.0 ports supporting 3.5″ hard drives. Connectivity 2.4 GHz WiFi 802.11b/g/n up to 300Mbps 5 GHz WiFi 802.11a/n/ac up to 867Mbps 2x Gigabit Ethernet WAN ports 4x Gigabit Ethernet LAN ports 2x RF Antenna Connectors USB – 1x USB3.0 port Expansion – 30-pin header including USB, I2S, JTAG, UART, and GPIO […]