LOW cost WiFi?

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gchapman wrote:
Olimex may be along soon ...

Olimex on Wordpress

ESP8266 update - The Ultimate Development boards for ESP8266 are in stock

28 Nov 2014

https://olimex.wordpress.com/2014/11/28/esp8266-update-the-ultimate-development-boards-for-esp8266-are-in-stock/

...

Both boards are in stockMOD-WIFI-ESP8266 cost EUR 5.00 for single quantity,MOD-WIFI-8266-DEV  cost EUR 5.50 in single quantity.

MOD-WIFI-ESP8266-EVB with Relay, button, Power supply, GPIOs access is in production and will be available in couple of weeks! It have on it MOD-WIFI-ESP8266-DEV on socket.

 www.olimex.com

https://www.olimex.com/Products/Modules/Ethernet/MOD-WIFI-ESP8266/open-source-hardware

 www.olimex.com

https://www.olimex.com/Products/Modules/Ethernet/MOD-WIFI-ESP8266-DEV/open-source-hardware

"Dare to be naïve." - Buckminster Fuller

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Via the olimex website, i came across nodemcu which is a lua interpreter that runs on these modules. Just trying to download it now.

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May your test be productive.

Some Wi-Fi modules do have a script interpreter; Lua being FOSS is advantageous.

Have seen use of Lua for 32-bit MPUs in some LCD.

Lua

Lua: about

http://www.lua.org/about.html

"Dare to be naïve." - Buckminster Fuller

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Olimex on Wordpress

ESP8266-EVB is run in production, to be in stock before Christmas

04 Dec 2014

http://olimex.wordpress.com/2014/12/04/esp8266-evb-is-run-in-production-to-be-in-stock-before-christmas/

"Dare to be naïve." - Buckminster Fuller

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The WINC1500 Xplained Pro kit is showing some stock at a few distributors; Gallery has a package for it.

Hopefully the module will be in-stock soon.

 

Ref.

Atmel Corporation

Home > Products > Wireless Connectivity > Wi-Fi

ATWINC1500-XSTK

http://www.atmel.com/tools/ATWINC1500-XSTK.aspx

Atmel Corporation

Home /  Wireless kits  /  Atmel WINC1500 Xplained Pro Starter Kit

http://store.atmel.com/PartDetail.aspx?q=p:10500407#tc:description

FindChips

http://www.findchips.com/search/ATWINC1500

https://gallery.atmel.com/img/Atmel/hdr_BG.jpg

Home > Products > WINC1500

https://gallery.atmel.com/Products/Details/17cdbcd4-e410-4587-8129-e85d1c92627c

 

"Dare to be naïve." - Buckminster Fuller

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WINC1500 module is in-stock at a few distributors :

  • element14, 24USD/1
  • Arrow, 16USD/1 for 50

It's in other distributors catalogs; some at about 13USD/1 for 1000.

http://www.findchips.com/search/atwinc1500-mr210pa

"Dare to be naïve." - Buckminster Fuller

Last Edited: Tue. Dec 23, 2014 - 11:40 PM
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Adafruit Industries

Boards / Breakout Boards / ESP8266 WiFi Module

http://www.adafruit.com/products/2282

via

YouTube

Adafruit Industries

New Products 12/17/2014

https://www.youtube.com/watch?v=UXDF-3m-zuU

"Dare to be naïve." - Buckminster Fuller

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"Dare to be naïve." - Buckminster Fuller

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Nodemcu has been opensourced. I tried to build it last weekend - no luck. Seems others have had similar issues. Such is life on the bleeding edge.

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But likely working soon because NodeMcu's repositories appear to have some activity.

GitHub

nodemcu (zeroday) · GitHub

https://github.com/nodemcu

"Dare to be naïve." - Buckminster Fuller

Last Edited: Thu. Jan 8, 2015 - 10:14 PM
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Dangerous Prototypes

Programming an Arduino via WiFi with the ESP8266

December 17, 2014

http://dangerousprototypes.com/2014/12/17/programming-an-arduino-via-wifi-with-the-esp8266/

"Dare to be naïve." - Buckminster Fuller

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It's amazing how a lot of people have jumped onto the esp8266. In three months it has gone from zero to hero. Obviously the price point is a winner and thankfully espressive have published the docs. I'm just riding the wave!

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GitHub

Reflowster/ESP8266_Wifi

https://github.com/Reflowster/ESP8266_Wifi

uploads to ThingSpeak :

https://thingspeak.com/

"Dare to be naïve." - Buckminster Fuller

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I can now build nodemcu and change it as i see fit.

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Having much fun now i can build my own code. Added my own module to lua to convert a string to modbus ascii. Next i'll look at rs485 transciever control and rtu rx/tx.

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Kartman, you seem excited and its like a contagious laugh as I am getting excited too!, I have no idea why its good to build nodemcu but I am happy if you are

 

The only problem is I havent got a clue what you are talking about

 

Since I seen Toms project I have read a bit, watched a few youtube videos but its all very hazy

 

As a first stop I am looking at this telnet stuff, i have an AVR sending data to a serial port through two XBees

 

I am trying to port forward the data so I can get it but thats as far as I got even this stuff with all the talk of TCP/IP UDP DHCP its awful just awful

 

Anyway I will buy one of these ESP things and a wiznet maybe later I will start a thread as this is all really good stuff

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Bignoob, there's a lot of acronyms used with tcp/ip. Most of these relate to fairly simple processes. Once you understand the mechanisms that get your data from A to B it all makes sense. Luckily there's plenty written about it.

What's so exciting (for me at least) with the esp8266? Apart from being cheap and small, it has a healthy power output. Nodemcu is a project that puts a programming language on the module so you can have it do things - like have a little web page that turns your lights on and off. It's all a bit bleeding edge so things progress day by day. The nodemcu code was released at christmas so i've been trying to build it without much success- until now. What this means is that i can now add my own software modules to it to perform specific tasks. I started writing a modbus module.
In lua i can write: modbus.ascii(0,msg) and it will create a modbus ascii message and send it out the serial port. Once finished, doing a wifi modbus gateway will be simple or doing a little webpage that could query a PLC or VSD and configure/control. All on a little postage stamp device that costs a few $

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Bignoob, there's a lot of acronyms used with tcp/ip. Most of these relate to fairly simple processes. Once you understand the mechanisms that get your data from A to B it all makes sense. Luckily there's plenty written about it.

This is what I am trying to get to grips with, I am terrible at reading stuff to learn, I need to be hands on talking to others 

 

The nodemcu code was released at christmas so i've been trying to build it without much success- until now. What this means is that i can now add my own software modules to it to perform specific tasks

 It all sounds so good, I was looking for anything ESP tonight when I got that wiznet thing, unfortunately RS or Farnell didn't have them

 

In lua i can write: modbus.ascii(0,msg) and it will create a modbus ascii message and send it out the serial port

Ah Modbus, yet another thing that is very useful to an engineer, so much equipment uses it, my company have a lot of stuff that uses Modbus

 

II have a manual at work with a load of codes that our machines send over modbus one day I will be asked to implement something that is compatible so I will have to do it and it will be sooner rather than later!  don't know much about it but isn't it a case of converting RS232 (printf!) to Modbus through an IC?

 

I want to learn things from you Kartman, it means answering lots of stupid questions, I hope you don't mind!

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Modbus is sort of the lowest common denominators in industrial protocols. It was one of the first digital protocols and is now open and simple to implement. It sees the world as registers (16 bits), coils and contacts (1 bit). The protocol basically consists of methods to read/write these entities. In fact, most of my controllers I designed only supported two commands - read registers and write registers. What is contained in a register is up to the implementation. One would normally do a 'modbus map' which is a spreadsheet that maps, say register 1 to  temperature, register 2 to status and the bits are ..... For a given device, you have a document that tells you what a register or bit does. In a PLC, the registers usually map to a range of internal memory and i/o. If you goto Wikipedia and search for modbus, there is a brief rundown of the protocols - basically <address><command><start reg><number of regs> that can be sent via tcp/ip, rtu or ascii formats. For example the ascii format looks something like this :010300010002CD<cr><lf> . If you sent this to a modbus slave device via serial it would probably respond with the values of register 1 and 2. Since there is a checksum value in there to validate the message, that needs to be calculated (my example is probably wrong), so my code would take the raw numbers, massage them, calculate the checksum and output a modbus ascii message.

After a bit of experience, the protocol is so simple you get to be able to decode it without referring to the documents. For the most part you don't even need to get that down and dirty (unless you're designing stuff) as there are many tools (like modscan and modsim) that do the dirty work for you.

 

Under linux, there are two handy programs - ser2net that does a serial to socket gateway and modusd that does a modbus tcp to serial gateway. Boards like the raspberry pi can run these easily as can a hacked wireless router with openwrt firmware.

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Olimex on Wordpress

New Product in stock: ESP8266-EVB the ultimate Internet of Things development board

26 Jan 2015

by OLIMEX Ltd

https://olimex.wordpress.com/2015/01/26/new-product-in-stock-esp8266-evb-the-ultimate-internet-of-things-development-board/

...

It’s small 57 x 50 mm development board with MOD-WIFI-ESP8266-DEV board on socket, Relay 250VAC / 10A, button, UEXT connector, 0.1″ step connector with all ESP8266 signals. Power supply 5V jack.

...

Small tutorial how to setup the GCC and SDK also will be blogged this week.

...

To upload code you will need any USB to serial 3.3V converter like ...

"Dare to be naïve." - Buckminster Fuller

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Olimex on Wordpress

ESP8266 Building Hello World Blink LED and Simple Web Server to drive the Relay and check Button status

29 Jan 2015

by OLIMEX Ltd

https://olimex.wordpress.com/2015/01/29/esp8266-building-hello-world-blink-led-and-simple-web-server-to-drive-the-relay-and-check-button-status/

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First you need to install your tools. It’s simple, just follow the instructions here: ...

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Here is what we do on Ubuntu 14.04 LTE 64-bit:

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For less experienced users, we are preparing VirtualBox disk image ...

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Once you have setup the Tools you can download our examples from GitHub:

...

now we hae to load it to ESP8266-EVB

you need: ...

...

Scan for WIFI which name starts with ... you will see this home page: ...

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This is very basic demo code which can be used as template for your own projects!

"Dare to be naïve." - Buckminster Fuller

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Olimex on Wordpress

Free ESP8266 Workshop -- March 7th in Olimex training building

11 Feb 2015

https://olimex.wordpress.com/2015/02/11/free-esp8266-workshop-march-7th-in-olimex-training-building/

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  • Where we are with ESP8266 development boards, new boards and plans.
  • ...
  • New Arduino style library for ESP8266 with GPIO, ADC, DAC(PWM), SPI, I2C, Serial. Access to the 2MB Flash in Olimex modules for data logging, web pages and more.
  • How to develop with Lua and MQTT with ESP8266.

  • ...

  • How to make web server with secure access

  • Low power modes and battery operation.

Everyone is welcome! ...

"Dare to be naïve." - Buckminster Fuller

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The Atmel WINC1500 module and starter kit is a featured new product at Mouser Electronics; the embedded YouTube video is from a demonstration at Electronica.

Mouser Electronics

Home » NEWEST Products » New by Manufacturer » Atmel » WINC1500 Wi-Fi System on Chip - Atmel

http://www.mouser.com/new/atmel/atmel-winc1500/

"Dare to be naïve." - Buckminster Fuller

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Kartman wrote:
As for power consumption - that might be debatable. There seems to be a push for low power wifi but how it compares to bluetooth le etc, i'm not sure.
An ACKme Networks Wi-Fi module's datasheet states about 11mA (typical) for 1Mbps transmit though 320mA max for Wi-Fi transmit test.

A rough close to Bluetooth though with much greater range and Internet Protocol.

The module and boards are a new arrival at Mouser with the module at 16USD/one and 13USD/one for 100; element14 has the module at 14USD/one.

A board is about 25USD/one.

Has a web server and JavaScript API with a hint that a Python bytecode engine may be in-work; in the module software guide is "A WiConnect Python API providing a Python wrapper around the HTTP server REST API - coming soon."

The source code for JavaScript and the sample web app is available with a copyright restriction that it's only for ACKme Networks hardware.

Module's power and signals are compatible with XMEGA.


ACKme Networks - a Sensors.com brand

AMW006 (Numbat)

Ultra-low power Wi-Fi networking module for battery powered applications

https://ack.me/products/AMW006_Numbat

GitHub

ACKme Networks

https://github.com/ackme

"Dare to be naïve." - Buckminster Fuller

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Kartman wrote:
I wonder if anyone has tested the module for ETSI/FCC compliance?

Adafruit Industries

Adafruit HUZZAH ESP8266 Breakout ID: 2471 - $9.95

https://www.adafruit.com/product/2471

...

FCC test report ...

CE test report ...

...

via

Google+

Adafruit Industries

$9.95 :) The @Adafruit HUZZAH ESP8266 Breakout ESP8266 super fun break out…

https://plus.google.com/+adafruit/posts/LSeApkHG8Cw

(a comment mentions the Nodemcu tutorial)

"Dare to be naïve." - Buckminster Fuller

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