wifi News - Page 44 of 98 - CNX Software

December 12, 2019December 12, 2019 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

iCommSemi SV6166F is a Low-Power WiFi SoC for IoT and Embedded Systems

The other day I wrote about Sonoff Micro WiFi USB Smart adapter featuring a CKW04 WiFi chip, but one person suspected it may be based on iCommSemi SV6166F chip with very similar features and the same 6x6mm form factor. It’s still unclear whether that’s the chip used in Sonoff Micro, but AFAICR I never heard about iCommSemi previously, so let’s have a look at SV6166F in particular. The SV6166F is a low-power single-chip device designed for integration into the Internet of Thing and embedded systems with support for 802.11b/g/n WiFi at 2.4 GHz. SV6166F highlights: MCU – Andes Technology N10 processor with ILM/DLM and I-cache. Memory & Storage 128K ROM and 192 KB SRAM for Instruction and data SRAM in total 8K retention SRAM 2MB (16 Mbit) SPI flash in package Flash and PSRAM controller up to 16MB/64Mb with XIP WiFi Connectivity 802.11b, 11g, and 802.11n 1T1R AP/STA mode – […]

December 10, 2019 by Jean-Luc Aufranc (CNXSoft) - 15 Comments

Sonoff Micro WiFi Smart USB Adapter Sells for $5

ITEAD Studio Sonoff family of WiFi-powered home automation devices is convenient to use with voice commands or mobile apps, and for those who want to more control over what runs in their network, Sonff devices are usually compatible with open-source firmware such as Sonoff-Tasmota. We’ve very recently written about Sonoff D1 smart dimmer switch, but the company also launched Sonoff Micro WiFi smart USB adapter that allows you to control USB powered devices. Sonoff Micro specifications: Power Input – 5V/2.5A USB type-A male Output – 5V/2.5A USB type-A female; BC 1.2 charging, max 1A output for charging Connectivity – 802.11 b/g/n WiFi 4 @ 2.4 GHz Misc – Power and WiFi LED’s, switch button Dimensions – 45 x 30.5 x 26 mm (PC V0 flame-retardant material) Weight – 17 grams Certifications – CE, FCC There’s no integrated power supply, so Sonoff Micro targets specifically USB power devices such as USB […]

December 6, 2019December 6, 2019 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

$7 Sonoff D1 Smart Dimmer Switch Supports Mobile App, RF433 Remote, and Voice Assistants

Sonoff D1 Smart Dimmer Switch & RF433 Remote

ITEAD Studio Sonoff is a family of WiFi or/and 433 MHz RF connected smart home switches, sockets, light bulbs or other products for home automation. They are usually based on ESP8266 WiSoC and while the pre-loaded firmware works with eWelink Android/iOS app and popular voice assistant, it’s also possible to load open-source firmware such as Sonoff-Tasmota or ESPurna to add MQTT and other protocols in order to integrate those with home automation solution such as Domoticz, or something control those from your web browser. The company has now launched another Sonoff device, namely Sonoff D1 smart dimmer switch which – as its name implies – will allow you to dim incandescent and dimmable LED lights. Sonoff D1 smart dimmer switch specifications: Connectivity – RF433 and 802.11b/g/n WiFi 4 Max Current – 1A Max Power – 400W for Incandescent lamp, and 150W for LED light Power Supply – 110V-230V AC input […]

November 29, 2019November 30, 2019 by Jean-Luc Aufranc (CNXSoft) - 29 Comments

Raspberry Pi 4 WiFi Fails When Setting HDMI to 2560×1440 Resolution

Raspberry Pi 4 WiFi Fail 2560x1440 Resolution

Enrico Zini was working on a digital signage solution based on Raspberry Pi 4, then he set the video output to 2560×1440, and all hell broke loose. And by that, I mean WiFi stopped working. It was not obvious at first but after a full day of debugging, trying both micro HDMI outputs, different HDMI cables, three different Raspberry Pi boards, different power adapters, Raspbian Buster and Buster Lite, different MicroSD cards… He could reproduce the problem in all conditions, all he needed to do was to set the resolution to 2560×1440, and WiFi would just stop working. Setting the resolution to 2048×1080 or lower, and all WiFi connectivity issues disappeared. He did not test at higher resolutions, and another user reported a similar problem happening at 2.4 GHz, but not at 5 GHz, albeit when setting HDMI output to 1920×1080. So it looks like interference, but as noted by […]

November 28, 2019February 16, 2020 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

esp32MX-E ESP32 Board Comes with Ethernet and USB-C Ports (Crowdfunding)

We’ve already covered several ESP32 boards with Ethernet including Olimex ESP32-GATEWAY and Silicognition wESP32, and I’ve just noticed Espressif also made its own with ESP32-Ethernet-Kit. Modtronix Engineering has another take with esp32MX-E board that beside Ethernet also exposes a USB-C port, a MicroSD card slot, and also adds an STM32F0 microcontroller acting as an I2C I/O expander. esp32MX-E specifications: Wireless Module ESP32 dual-core LX6 microprocessor at 160 or 240 MHz, 4 MB Flash, 520 KB SRAM Wi-Fi 4 802.11 b/g/n Bluetooth 4.2 BR/EDR & BLE Storage – MicroSD card slot USB – USB Type-C connector for programming, power, and Virtual COM port Expansion via 14-pin and 20-pin female headers 22x I/O pins of which 4 are inputs only. 4x 5 V tolerant I/O pins Not all I/Os are available when the SD Card is used Programmable pull-up and pull-down resistors on most inputs Secondary MCU – I²C I/O expander implemented […]

November 14, 2019 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Rikomagic R6 Mini Projector Review – Part 2: Android 7.1

We’ve already quickly checked out Rikomagic R6 mini projector in the first part of the review with an unboxing and first boot, but now I’ve had more time to play with the device, so I’ll report about my experience. Android Launcher and Default Apps Here’s the launcher pre-installed in the projector. Media Center The Media Center app allows you to display images, play audio files as well as videos. It will show thumbnails of images present in the current folder… and as soon as you select one image in the folder it will start a slideshow with classic music playing the background. You’ll be able to see what it looks like in the video at the end of this review. Happy Cast It’s an app in Chinese, that apparently allows you to cast from other Chinese apps, but I have not used it. WiFi Display WiFi Display will be one […]

November 9, 2019November 11, 2019 by Jean-Luc Aufranc (CNXSoft) - 135 Comments

Giveaway Week – Particle Mesh IoT Development Kit

In early 2018, Particle introduced three nRF52840 Bluetooth 5 boards, also supporting the company’s Particle Mesh technology, and selling for as low as $9. Later that year, the company send me what they call Particle Mesh IoT development kit with several of those boards to get started with their mesh networking solution. That’s what I’m offering as the 6th prize of this giveaway week. With this kit on hand, I wrote a Particle Mesh networking getting started guide showing how to configure the board in Particle.io dashboard, and easily push a new program to multiple Xenon Bluetooth 5 + Mesh boards using an Argon WiFi & Bluetooth 5 + Mesh as the gateway. I’ll give away the full kit shown in the top picture which includes: The Argon kit (ESP32 WiFi + Bluetooth + Mesh) A Grove and Particle Sensor Kit with various modules and a shield An Adafruit Featherwing […]

November 7, 2019November 7, 2019 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

HLK-7688A OpenWrt Development Board Comes with an Audio Jack

We first tested MediaTek MT7688 MIPS processor in Mediatek Labs’ LinkIt Smart 7688 / 7688 Duo hardware development kits running OpenWrt in 2015 with the boards having a focus on IoT applications. A year later, Widora NEO board launched with an audio jack for connected audio applications, but AFAIK it’s not available anymore. There’s now another OpenWrt audio board based on the processor with HLK-7688A board featuring Hi-Link HLK-7688A module which we previously found in MatchBox LoRaWAN gateway. HLK-7688A board specifications: Wireless Module – HLK-7688A based on MediaTek MT7688 MIPS24KEc processor @ 580 MHz, and equipped with 128MB RAM, 32MB flash Storage – MicroSD card slot Connectivity 802.11 b/g/n WiFi 4 up to 150 Mbps with u.FL antenna connector 10/100M Ethernet Audio – 3.5mm audio jack; 4-pin speaker header, WM8960 audio codec USB – 2x Micro USB ports one USB 2.0 port and one for debugging & power Expansion – […]