Tag Archives: Wifi

Even a small figurine can play a big performance

obr1730_uvod

New aerial from 2J will surely not surprise you by its size, however features of the antenna are worth noticing.

2JW035 antenna measures only 52,5mm and is intended for WiFi and Bluetooth devices in 2.4 a 5GHz bands. The gain is 5dBi and the VSWR value is below 2.6:1. A big advantage of this antenna is a possibility of its versatile placing, as it contains a hinge.
So as to suit various customers´ requirements, the producer offers a possibility to order this antenna with three various connectors:

  • 2JW035-C20Nb is equipped with hexagonal black SMA connector
  • 2JW035-C675 is equipped with a round SMA connector
  • 2JW035-C442, which is also our standard stock type is equipped with a round black reverse-polarity SMA connector (RP).

For special applications, there´s also a possibility to order this antenna in a custom specified colour.

Detailed information can be found in the 2JW035 datasheet.


Even a small figurine can play a big performance – [Link]

ESP8266 WiFi Shield for Arduino and other micros

909 total views, no views today

0

FJMAB9BIBGCQ2Z8.MEDIUM

by drmpf @ instructables.com:

This ESP8266-01 WiFi Shield is an alternative to the Very Cheap/Simple Wifi Shield for Arduino and other micros. The Very Cheap/Simple Wifi Shield for Arduino and other micros uses an Adafruit HUZZAH ESP8266 module and is the simplest to wire up. However if you already have an ESP8266 module, you can use these instructions to make a WiFi Shield using it.

This instructable uses the ESP8266-01 module, if you have one of the other ESP8266 bare modules, provided the module has GPIO0 and GPIO2 available, then you can use these instructions. If the module makes GPIO15 accessible YOU MUST connect it to GND via a resistor with a value between 3K3 and 10K.

ESP8266 WiFi Shield for Arduino and other micros – [Link]

Wino… like Arduino, only smaller

623 total views, no views today

0

20150624024339_Winoby Martin Cooke:

The Wino board is an Arduino-like stackable development system which is both smaller and cheaper than Arduino units and features built-in WiFi as standard.

The main Wino controller board measures 26.5 x 18.5 mm and fitted with an Atmel ATSAMD21 running at 48 MHz with 128 kB Flash storage and 16 kB RAM. The board uses the ESP8266EX WiFi module which supports all the 802.11 b/g/n standards offering P2P and soft-AP modes and TCP-IP / UDP, static IP and DHCP networking. The 27-pin stackable connections around the board periphery provide connections for 15 digital GPIO pins, 6 x 12-bit ADCs and a 1 x 10-bit DAC.

Wino… like Arduino, only smaller – [Link]

WIFI plant monitoring system based on Arduino MEGA and ESP8266

475 total views, no views today

0

F2QU7MBIAOOCSC7.MEDIUM

by techrm @ instructables.com:

Today we are going to show you our first experiment on the Internet of Things. For this purpose, we decided to use an Arduino MEGA instead of an Arduino UNO. That’s because Arduino MEGA has more than one serial port and this fact allows us to use the ESP8266 and the serial monitor at the same time. As written in the title, we’ll see how to monitor some of the most important plant growth factors*. These parameters are: Ambient temperature and humidity Soil moisture and temperature Illuminance

WIFI plant monitoring system based on Arduino MEGA and ESP8266 – [Link]

Pozyx shield gives position

308 total views, no views today

0

20150604033001_PozyxShield

by elektormagazine.com:

Resolving the position of free roaming robots can be quite challenging. You can only expect to get accuracy of around 6 to 10 meters by using a standard low-cost GPS system and that can be further downgraded by poor signal strength inside buildings. Bluetooth and WiFi positioning can achieve 1 to 5 metres resolution but that’s often not enough. The Pozyx system has been developed to achieve a positional accuracy of 10 cm and works indoors or outdoors.

Four ‘Anchor’ transceiver units attach to walls or fences surrounding the space in which the Pozyx Shield operates. Communication between the shield and the four anchors allows the shield to determine its position and orientation within its operational area.

Pozyx shield gives position – [Link]

Samsung gets serious about the IoT

238 total views, no views today

0

20150518005630_Artik-2

by elektormagazine.com:

At the ‘Internet of Things World’ event held in San Francisco, Samsung Electronics announced three boards making up their new ARTIK development platform targeted at the Internet of Things (IoT) applications. To make the platform more attractive for developers it is compatible with the existing Arduino software development system. Young Sohn, President and Chief Strategy Officer of Samsung Electronics and Massimo Banzi, Co-founder of Arduino shared the stage to make the announcement.

The ARTIK 1 at 12mm square is the smallest board and includes a Dual Core processor running at 250 MHz and 80 MHz with 1 MB on-chip and 4 MB SPI Flash memory together with Bluetooth Low Energy (BLE) with Chip Antenna, secure element to give HW security and a 9-axis motion sensor. A single charge will allow the board to operate for three weeks while always-on and paired with a smartphone.

Samsung gets serious about the IoT – [Link]

xPico WiFi SMT doesn’t require connector neither antenna

obr1706_1

High mechanical stability is one of benefits of a new „SMT“ version of the popular Lantronix xPico WiFi module.

Lantronix xPico WiFi module may be already familiar to you from our articles, for example: xPico WiFi is a dream come true for producers and customers where we also mention the HW compatibility with the xPico module ( wired, serial-to-Ethernet modul). New version – xPico WiFi SMT brings the same functionality as xPico WiFi and as the name saysm it´s intended for a direct soldering by an SMT (reflow) process, together with other components on a PCB. In contrast to original version which has an SMT (board-to-board) connector, SMT version is designed similarly like many GSM/GPS modules, i.e. as a module on a carrying PCB with soldering pads on PCB sides (half-vias, plus gnd on a bottom).

At the same time, SMT version is also available with integrated small ceramic antenna, so no external antenna is required. Just this version XPCW1003100B we keep as a standard stock item. Perhaps the biggest advantage of SMT version is this possibility of a direct soldering bringing a very high mechanical stability – also suitable for applications with a higher risk of vibrations.

xPico WiFi SMT is the same powerful („device server“) as a previous version and offers easiest way how to add WiFi connectivity into a target device, practically without a necessity to write a single line of code.

Simultaneous AP (Access Point) with a DHCP server and Client mode also enable a direct access – communication with other WiFi device, for example with a tablet or a smartphone.

Detailed information will provide you the xPico WiFi SMT brochure, xPico WiFi SMTi datasheet and the xPico WiFi SMT integration guide.


xPico WiFi SMT doesn’t require connector neither antenna – [Link]

ESP8266 ESP-03 Dev Board

esp-03_board

by Nathan Chantrell:

This is a small dev board I designed to make experimenting with and deploying the ESP8266 ESP-03 modules a bit easier. As well as breaking out all the pins to 2.54mm headers it has a position to fit either a DS18B20 temperature sensor or a DHT22 temperature/humidity sensor plus the required pull up resistor. It can be powered from 3.3V or 5V+* if the regulator is fitted and there is a footprint for a micro USB connector if required.

ESP8266 ESP-03 Dev Board – [Link]

DragonBoard™ 410c – The Dragon Is Coming

dragonboard410c-2

A LOT OF POWER IN A TINY FOOTPRINT.
Smaller than a standard playing card, the DragonBoard™ 410c packs a lot in a tiny footprint, including a quad-core 1.2Ghz Snapdragon 410 processor, 1GB RAM, 8GB eMMC storage, Wifi, GPS, and Bluetooth.

A PLATFORM BUILT FOR ANY PROJECT
The DragonBoard™ 410c offers a fully integrated solution of hardware and software that is designed to erase technical limitations and offer unparalleled versatility for any project.

READY TO INSPIRE LIMITLESS POSSIBILITIES
The DragonBoard™ 410c was designed to inspire the limitless possibilities of your imagination. Don’t be afraid to think big.

CONNECT WITH THE DRAGONBOARD™ 410C
Subscribe to receive important board updates and news.

DragonBoard™ 410c – The Dragon Is Coming – [Link]

ESP8266 WIFI Battery Monitor System

257 total views, no views today

0

F4N3ZR7I9UE0Q7W.MEDIUM

by TrackerJ @ instructables.com:

One of the main problem in battery powered projects is to choose/use the proper battery size/model/type. As market is flooded now with a lot of low quality batteries claiming thousands of mAh ( Ultrafire fakes stories is just an example) the only way to proper check them is to run a set of tests.

A simple basic tester that will be able to monitor over the entire battery lifetime at least few parameters like, voltage, current, power consumption and stored energy between charges can give you valuable informations about the parameters and health of the battery. And of course also you can see how are looking the numbers against the datasheet claims :).

ESP8266 WIFI Battery Monitor System – [Link]