IoT

Posted on by Jean-Luc Aufranc (CNXSoft) - 17 Comments on Microchip Introduces $11 RN2483 & RN2903 LoRa Modules and $70 LoRa Evaluation Kits for IoT & M2M Applications

Microchip Introduces $11 RN2483 & RN2903 LoRa Modules and $70 LoRa Evaluation Kits for IoT & M2M Applications

LoRa is one of those long range low power WAN standards used for the machine to machine (M2M) and Internet of things (IoT) applications. I already featured a Semtech Lora module here with a line-of-sight range of up to 20 to 30km, and the company has just partnered with STMicro to deploy LoRa solutions, but today, I’m going to have a look at Microchip Lora modules and development kits that I discovered in the company’s Micro Solutions Nov/Dec 2015 publication. The company has launched two modules for the European and North American markets with respectively RN2483 LoRa 433/868 MHz R&TTE Directive Assessed Radio Modem and RN2903 915 MHz North American modem. Apart from the different frequencies, both modules have similar features: On-board LoRaWAN Class A protocol stack Tx/Rx Power RN2483 – 40 mA (14dBm, 868MHz) Tx, and 14.2 mA Rx @ 3.6V RN2903 – 124 mA Tx max, and 13.5 mA […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 33 Comments on $3 Compact ESP8266 Board Includes RGD LED, Photo Resistor, Buttons and a USB to TTL Interface

$3 Compact ESP8266 Board Includes RGD LED, Photo Resistor, Buttons and a USB to TTL Interface

In case you need a cheap and compact ESP8266 board with integrated USB to TTL debug interface, a photo resistor, and/or some buttons, a white brand board based on ESP-12F could be interesting. “Witty cloud” development board specifications: ESP-12F module with Espressif ESP8266EX SoC Connectivity – WiFi 802.11 b/g/n 2x 8-pin headers with GPIOs, VCC, GND, Reset, ADC, and UART USB – 2x micro USB port (one for power, one for debugging ?) Misc – Photo resistor, RGB LED, three buttons for power, reset and firmware upgrade (I think) Dimensions – Small Witty cloud might not be the same of the board itself, but could be a cloud service launched in China, as some of the screenshot on Aliexpress could imply. All I could find are some websites vaguely mentioning GoKit 3.0 and Witty Cloud 3.0, but it does not make much sense.  If Chinese readers could provide some insights […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Wio Link is an ESP8266 Board Designed to Make IoT Projects Easier (Crowdfunding)

Wio Link is an ESP8266 Board Designed to Make IoT Projects Easier (Crowdfunding)

There are already plenty of board or modules based on Espressif ESP8266 WiFi SoC, but if you don’t like soldering, or would rather avoid breadboards and some cables for your or your kids’ projects, Wio Link may be interesting, as all you need to is to connect Grove modules required for your applications to get started, and Seeed Studio also took care of the low level software part and a drag-and-drop mobile app is provided, so software programming has been made easy too. Wio Link hardware specifications: SoC – Espressif ESP8266EX Tensila SoC Storage – 4MB flash Connectivity – 802.11b/g/n WiFi, with WEP/TKIP/AES encryption support Expansion – 6x Grove connectors: 3x digital, 1x analog, 1x UART and 1x I2C (3.3V I/Os) Power Supply 5V via micro USB port 3.4 ~ 4.2V via external battery Output DC Current – 1000mA MAX Charge Current: 500mA MAX Dimensions – 55mm*48mm Weight – 26g […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 13 Comments on Sonoff & Slampher are $5 RF and WiFi Smart Switches and Lightbulb Adapters (Crowdfunding)

Sonoff & Slampher are $5 RF and WiFi Smart Switches and Lightbulb Adapters (Crowdfunding)

ITEAD Studio has launched two new low cost home automation products with Sonoff smart switch, and Slampher smart E27 light bulb adapter both supporting control via WiFi and your Android smartphone, or 433MHz with a simple remote control, while still retaining the capability to control your electrical appliances and lights with a manual switch. Installation is pretty easy, and safer than some other products like Semlamp. Sonoff – You simply need to cut the cable to your appliance, and insert two wires into the IN part, and the other two wires into the OUT part. Turn if on, and add it to the app if you are going to use a smartphone Slampher – Remove your light bulb from its current socket, screws the bulb to Slampher, and put it back into your socket. Register the light in to the app and your done. Both devices will send data to […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Quick Start Guide for LinkIt Smart 7688 (Duo) Board

Quick Start Guide for LinkIt Smart 7688 (Duo) Board

Mediatek Labs has announced LinkIt Smart 7688 development boards powered by Mediatek MT7688 WiSoC earlier today, but I was selected for a close beta several weeks before the launch, and I’ve had time to play a little with the boards, so today I’ll report my experience getting started with LinkIt Smart 7688 amd 7688 Duo by writing a Quick Start Guide showing how to setup the boards, upgrade firmware, access the serial console, run “Blink LED” sample applications with Python and JavaScript, as well as the Arduino IDE, and connect to the Internet. Initial Setup You’ll only need a micro USB cable and a computer with WiFi and USB ports to get started with the board. The green LED (top) for the MCU will turn on immediately, while the red LED (bottom) for WiFI will blink once, and only turn on continuously after 5 seconds, and within 30 seconds after […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on Mediatek LinkIt Smart 7688 and Smart 7688 DUO Boards Run OpenWRT for IoT Applications

Mediatek LinkIt Smart 7688 and Smart 7688 DUO Boards Run OpenWRT for IoT Applications

MediaTek LinkIt is a collection of development platforms designed for the prototyping of wearables and Internet of Things (IoT) devices, and last year they started with LinkIt ONE board based on Mediatek MT2501 “Aster” micro-controller and featuring WiFi, Bluetooth, GPSD and GSM/GPRS connectivity. Mediatek Labs has now launched two new LinkIt board, namely LinkIt Smart 7688 and LinkIt Smart 7688 DUO, both powered by Mediatek MT7688 MIPS processor and running OpenWRT, with the latter also adding an Atmel ATmega32U4 for Arduino compatibility. LinkIt Smart 7688 Board LinkIt Smart 7688 is then the simpler of the two with the following specifications: Processor – Mediatek MT7688AN MIPS24KEc processor @ 580 MHz with WiFi System Memory – 128MB DDR2 RAM. Storage – 32MB flash + micro SD slot Connectivity – 1T1R Wi-Fi 802.11 b/g/n with chip antenna and I-PEX conector USB – 1x micro USB host port, 1x micro USB port for power […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 21 Comments on MIPS Creator Ci40 Development Board Powered by cXT200 SoC Launched for $53 on Kickstarter

MIPS Creator Ci40 Development Board Powered by cXT200 SoC Launched for $53 on Kickstarter

Last year, Imagination Technologies launched their first community development board with MIPS Creator CI20 powered by Ingenic JZ4780 dual core MIPS processor running both Android and Linux, and now supported by various projects. The company has been teasing about its MIPS Creatort Ci40 for a few weeks, and was already announced as the MIPS platform of choice for Google Brillo operating system, but the board has now officially been launched via a Kickstarter campaign where you can get the board for $53, as well as some add-on boards. But instead of using a processor from one of their partner, Imagination just designed their own MIPS interAptiv SoC for the board. Creator Ci40 board specifications: SoC – Imagination Technologies Creator cXT200 with 2x MIPS interAptiv core @ 550MHz, 512KB L2 cache, and an Ensigma C4500 RPU (for 802.11ac/ BT 4.1 LE) System Memory – 256 MB DDR3 Storage – 512 MB […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on How to Build Brillo Operating System from Source Code and Run Brillo Emulator

How to Build Brillo Operating System from Source Code and Run Brillo Emulator

Google formally launched Brillo operating system a few weeks ago. The new operating system is a stripped down version of Android that targets Internet of Things (IoT) applications, and more recently the company pushed the source code to their servers. So I’ve given it a try by checking out the code, building Brillo emulator for Intel/AMD, and running it in Ubuntu 14.04 64-bit. First you’ll need to retrieve the source code:

It took a few hours here with some errors the first time, so I tried again and I finally got the code a few hours later. Once this is done, set the build environment and configuration:

Lunch will bring a list of possible builds:

You could also run the “Brillo emulator” on ARM, and edison-eng must be the build for Intel Edison board. Now you can start the build:

It has to complete 21491 different tasks, […]

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