wifi News - Page 58 of 97 - CNX Software

August 26, 2017August 26, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Broadcom Introduces Three 802.11ax “Max WiFi” Chips: BCM43684, BCM43694 & BCM4375

We’ve already written about the new 802.11ax WiFi standard that promises up to 10 Gbps data rates, support for 2.4 & 5 GHz bands, up to 4x longer range, and better handling of high density scenarios. It appears 802.11ax we’ll be known as Max WiFi to the masses, and Broadcom has unveiled Max WiFi solutions for home and enterprise routers, as well as a smartphones. There are currently three Max WiFi solutions from Broadcom: BCM43684 & BCM43694 4×4 802.11ax chips, respectively optimized for residential and enterprise access points, share the same key features: Support for four streams of 802.11ax 4.8 Gbps PHY rate 160 MHz channel bandwidth 1024 QAM modulation Uplink & downlink OFDMA (Orthogonal Frequency Division Multiple Access) MU-MIMO ZeroWait DFS (Dynamic Frequency Selection) AirIQ interference identification Full compliance to IEEE and WFA 802.11ax specifications BCM4375 smartphone combo chip: Support for 2-streams of 802.11ax Bluetooth 5 including Low-Energy Long […]

August 22, 2017August 27, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

ESP32-PICO-D4 System-in-Package Combines ESP32, 4MB SPI Flash, a Crystal Oscillator, and Passive Components

Espressif Systems has revealed another ESP32 variant, but this time it’s not an SoC, but a 7x7mm system-in-package (SIP) that comes ESP32 dual core processor, a 4MB SPI flash, a crystal oscillator and various passive components, so that you don’t need to include those in your design, and create an ultra-compact PCB for wearables and other space-constrained applications. ESP32-PICO-D4 SiP specifications: SoC – ESP32 with two Tensilica LX6 cores, 448 KB ROM, 520 KB SRAM (inc. 8KB RTC memory), 1kbit eFuse On-module Flash – 4MB SPI flash Connectivity WiFi – 802.11 b/g/n/e/i (802.11n up to 150 Mbps) Bluetooth – Bluetooth V4.2 BR/EDR and BLE specification; ; class-1, class-2 and class-3 transmitter; Audio: CVSD and SBC SIP Interfaces SD card, UART, SPI, SDIO, LED PWM, Motor PWM, I2S, I2C, IR GPIO, capacitive touch sensor, ADC, DAC, LNA pre-amplifier Sensors – On-chip Hall sensor & temperature sensor Clock – On-module 40 MHz crystal […]

August 21, 2017November 8, 2017 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

Khadas VIM2 Amlogic S912 Development Board Sells for $75 and Up

Khadas VIM2 is the only low cost development board powered by Amlogic S912 octa-core processor that I know of, but when we first wrote about the board it was not available yet. The three versions of the boards are now being sold on GearBest with the Basic version going for $74.99, the Pro version for $94.99, and the Max version for $109.99. [Update: You can get VIM2 Max for $99.99 by using GBVIM2MAX coupon code for the first 100 boards daily, and the five first boards are sold for $49.99 daily at 9:00 UTC until August 28th. Details on promotion page.] Khadas VIM2 Basic/Pro/Max specifications: SoC – Amlogic S912 octa core ARM Cortex-A53 @ up to 1.5 GHz with ARM Mali-820MP GPU System Memory Basic – 2 GB DDR4 Pro/Max – 3 GB DDR4 Storage micro SD card and 2MB SPI flash eMMC Flash – Basic: 16GB; Pro: 32GB; Max: […]

August 18, 2017August 18, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Single Core ESP32-S0WD WiSoC Datasheet and Price

I’m subscribed to Espressif Systems’ notification system so that I received an email each time there’s a documentation update on their website, and this morning they posted ESP32-S0WD Datasheet, the single core version of ESP32 processor, which we reported in our post about ESP32 5×5 packages. Beside the small 5x5mm 48-pin package, and single Xtensa 32-bit LX6 microprocessor, it looks to be the same as the frequently used ESP32-D0WDQ6 with a 6x6mm 48-pin package. The CPU & Memory part of the datasheet reads: ESP32-S0WD: Xtensa single–core 32-bit LX6 microprocessor, up to 200 DMIPS 448 KB ROM 520 KB SRAM 16 KB SRAM in RTC QSPI flash/SRAM, up to 4 x 16 MB Power supply: 2.3V to 3.6V While ESP32 datasheet shows a dual core up to 600 MIPS, so maybe the max frequency is also limited. I could not find any ESP32-S0WD module or board just yet, but GridConnect is […]

August 14, 2017August 15, 2017 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Intel Gemini Lake Block Diagram and Yet More Info

So yesterday, I wrote about some of the new features of Intel Gemini Lake processors like native HDMI 2.0, 4-wide pipeline, 10-bit VP9, and possible built-in 802.11ac wireless controller. I went to bed, and somehow this morning I woke up with something that looks like Gemini Lake (GLK) block diagram, and a few more details. So we indeed have HDMI 2.0 output, as well as DP 1.2a and eDP 1.4, and an embedded wireless controller via the CNVi (Connectivity Integration Architecture) block for WiFi’s MAC and Bluetooth’s MAC + Baseband modem. We’ll have plenty of USB 3.0 host interfaces, and the usual PCIe and SATA 3 interfaces. Still no UFS support, but eMMC 5.1 is supported, as well as x128 DDR4, LPDDR3 and LPDDR4 memory up to 2400 MHz (No ECC support). Cache size is confirmed to be 4MB for up to four GoldMont Plus (GLM+) cores, which combined with […]

August 1, 2017 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Realtek RTL8195AM Ameba WiFi + NFC Module Sells for $9 Shipped

Last year, Realtek Ameba IoT SoCs and development kits launched with boards such as Ameba Arduino, and later, the family got some buzz thanks to $2 RTL8710AF modules like Pine64 Padi IoT stamp, which looked competitive priced against ESP8266 SoC, and featuring an ARM Cortex-M3 core. Back to 2017, ESP8266 appears to still be the preferred platform for makers, and the community around Reatek Ameba processor is relatively small, but maybe the solutions are being integrated into commercial products rather than hobbyists project. Today, as I browsed the web, I noticed that are also some Realtek RTL8195AM module with WiFi, and NFC starting with an “Realtek Ameba-RTL8195AM WiFi & NFC Module” I first found on DFrobot for $15 per unit, but after spending a bit more time searching, I ended finding what looks like the same model for $8.99 including shipping on IC Station. RTL8195AM module (MJIOT-AMB-02) specifications: SoC – […]

July 24, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Sonnet is a Rugged Portable Device Creating Mesh Networks for Smartphones

Cellular networks are available in most places, but not always, and you may not have connectivity while climbing mountains or other remote locations, when going abroad, during natural disaster, in very crowded places where network capacity is exceeded, or when your government decides to cut it off for “national stability and harmony”. Wouldn’t it be great if you were still able to contact with your friend in such cases, and create your own mesh networks expanding over several kilometers? That’s exactly what Sonnet does by connecting to your smartphone over WiFi, and to other Sonnet nodes over ISM frequencies (433, 868 and 925 MHz). Sonnet hardware specifications: Connectivity 802.11 b/g/n WiFi with up to 20 dBm (max varies per country); WPA/WPA2 security Long Range RF Frequencies 915 MHz (North America) 868 MHz (Europe) 433 MHz (Asia Pacific) Distance – 5km typ.; up to 10km Line-of-sight; SMA connector available to extend […]

July 21, 2017July 21, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Onion Omega2S and Omega2S+ Linux WiFi Modules Launched for OEMs

Onion Omega2 and Omega2+ are tiny WiFi IoT development boards powered by Mediatek MT7688 MIPS processor running LEDE – OpenWrt fork – that sold for just $5 and up in Kickstarter, but are now selling for $7.50 and $9 respectively. The board also support various add-on boards, and a great for evaluation and various projects. But they may not be ideal for people who want to integrate the technology into their products, and that’s why the company have just launched Omega2S and Omega2S+ with about the same specifications, but in a package more suitable to be integrated into products for mass production. Onion Omega2S/2S+ specifications: WiSoC – Mediatek MT7688 MIPS processor @ 580 MHz System Memory / Storage Omega2S – 64MB DDR2 / 16MB flash Omega2S+ – 128MB DDR2 / 32 MB flash Connectivity – 802.11 b/g/n WiFi with u.FL antenna connector Baseboard Interface – Half holes (aka castellated holes) […]