avatarTree Langdon

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Abstract

SON).</p><p id="4cb7">Let’s quickly review the code.</p><p id="1704">Guided by a fellow programmer and partner of Jungletronics Ishida (<a href="https://github.com/alexishida?tab=repositories">https://github.com/alexishida?tab=repositories</a>) who could point us in the right direction, we modified the output code to JSON. The idea is to connect the Arduino with sensors and to make it serving restful web service.</p><p id="2a04">We will use JSON and HTTP REST as communication protocols. We are very close to this dream !!</p><p id="88e9"><b>Code (<a href="http://goo.gl/9gw6Aw"></a></b><a href="http://goo.gl/9gw6Aw">GitHub </a>REPO<b>):</b></p> <figure id="8156"> <div> <div>

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    </figure></iframe></div></div></figure><p id="e0b7">We carry the necessary libs. There are two variables of our wifi network and set the server on port 80. Standard right?!</p><p id="54d8">We keep a variable for the led but t in the module. We declare the method that handleroot().</p><p id="06af">The setup is used to configure the LED as output, put the serial in 115200, firmware standard began our wifi, and print a blank line, according to HTTP protocol.</p><p id="99fa">While the connection is not established, a point is printed on the serial.</p><p id="fb02">MDNS is a simple implementation of multicast DNS query support for an Arduino running on the ESP8266 chip. Only support for resolving address queries is currently implemented.</p><p id="6320">The (This) line <i>server.on</i>: inside this part, we can put how many links we want.</p><p id="88ca">The loop to manage the client session.</p><p id="dfb9">keep watching this video series because we will present the assembly of a board to help you with prototyping this chip. We use little solder. See our result:</p><figure id="3d76"><img src="https://cdn-images-1.readmedium.com/v2/resize:fit:800/1*EO5sg5RdATtrO7MPAerCzg.jpeg"><figcaption>CADDY — For ESP8266 Module to sit into!!! To program use this <a href="https://www.amazon.com/ESP-01S-ESP8266-Wireless-Adapter-4-5-5-5V/dp/B07KF119YB">USB adapter</a>; To run it use this <a href="https://www.amazon.com/DIYmall-ESP8266-Breakout-Breadboard-Transceiver/dp/B01G6H46UK">one</a>. Or follow <a href="https://readmedium.com/mit-app-inventor-2-meets-esp8266-03-kidserie-fa92cc8ae8a2">this</a> post.</figcaption></figure><p id="f0aa">Collision Condition &amp; Route to Nowhere:</p><figure id="7926"><img src="https://cdn-images-1.readmedium.com/v2/resize:fit:800/1*5BogWgIQUJvJr6HqJcCFOA.gif"><figcaption>Collision Condition &amp; Route to Nowhere</figcaption></figure><p id="cd73">Let’s assume we want to connect all together: Arduino, ESP8266 via USB cable from your laptop.</p><p id="7277">In this scenario, the Arduino sends to your computer while the</p><p id="04ee">ESP8266 tries to transmit too in the same way.</p><p id="3c4c">Ops!</p><p id="5059">Certainly, data will collide !!!</p><p id="5062">Garbled data cannot be properly interpreted by ESP8266 — You cannot program Arduino or talk to it from your computer while ESP8266 is connected to a computer serial.</p><p id="86d8">Now in another scenario (green on the graph).</p><p id="e489">The computer sends a message to the Arduino.</p><p id="b93b">Oops again!</p><p id="a888">Which route to follow? There are two options!</p><p id="ae93">Who does not know where to go, go nowhere!</p><p id="e8e4">This is a collision condition and route do nowhere scenario!</p><p id="1643">Both try to transmit to the computer at the same time.</p><p id="5f78">ESP8266 will most likely RESET!!!</p><p id="21c7">Now let’s separate the components.</p><p id="1738">First, remove the Atmega chip from Arduino and program ESP8266, or, better, bypass

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it!! (see video below)</p><p id="5fe2">Then plug back the ATmega and program the Arduino</p><p id="a342">Simple isn't it?</p><p id="d432">Use module ESP8266 in WiFi and Arduino in standalone mode!!!</p> <figure id="87ff"> <div> <div> <img class="ratio" src="http://placehold.it/16x9"> <iframe class="" src="https://cdn.embedly.com/widgets/media.html?src=https%3A%2F%2Fwww.youtube.com%2Fembed%2FhH8t4iPAVJI%3Ffeature%3Doembed&amp;url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DhH8t4iPAVJI&amp;image=https%3A%2F%2Fi.ytimg.com%2Fvi%2FhH8t4iPAVJI%2Fhqdefault.jpg&amp;key=d04bfffea46d4aeda930ec88cc64b87c&amp;type=text%2Fhtml&amp;schema=youtube" allowfullscreen="" frameborder="0" height="480" width="854"> </div> </div> </figure></iframe></div></div></figure><p id="129e">Thanks for watching the video (read this article) !!!</p><p id="8f19">Bye!!!</p><p id="c7e8"><a href="https://drive.google.com/drive/folders/0B8iMbc-iQqlULXhNYWpUUUoteGM?usp=sharing">Download all Project Files</a></p><h2 id="8007">Troubleshooting:</h2><p id="801c">When initiating the upload process in the Arduino IDE, press the Upload Button and simultaneously hold the White Wire connected to RST through 10k Ohms, providing a pulse on the GND. This action should be performed a few seconds before the Arduino indicates the uploading phase, typically during the compilation process. Ensure that the Orange Wire (GPIO0) is grounded during this time.</p><p id="3540">Once the upload is complete, detach the Orange Wire from the GND, allowing it to float momentarily. Subsequently, while opening the Serial Terminal, provide another pulse on the GND using the White Wire. Verify that the Serial Monitor acknowledges the:</p><div id="2f87"><pre>Connecting to <your_wifi_ssid> …… <span class="hljs-built_in">WiFi</span> connected <span class="hljs-built_in">Server</span> started <your_port_number></pre></div><p id="e4f8">Do not forget to edit the code according to your WiFi network;) <your_wifi_ssid> and <your_port_number></your_port_number></your_wifi_ssid></p><p id="5094">Based on: Renato Aloi’s <a href="http://renatoaloi.blogspot.com.br/2016/01/esp8266-no-arduino-ide.html">Tutorial</a> (Thanks a lot for your hard work Aloi!!!)</p><p id="d531">Migrate from: <a href="http://jungletronics.blogspot.com.br/">http://jungletronics.blogspot.com.br/</a></p><h1 id="acf7">Related Posts</h1><p id="54d1">Meet IoT Boards: ESP8266 & ESP32 —<a href="https://readmedium.com/meet-iot-boards-esp8266-esp32-ba12e41c1a3b"> <b>Which are the best? ESPs or RPis or Arduino Boards?</b> </a>IoT — Episode #01</p><p id="dc72"><a href="https://readmedium.com/arduino-headless-setup-esp-8266-wifi-cheap-chip-16-arduserie-ffaecf77729a"><b>Arduino Headless Setup & ESP8266</b></a> (WIFI cheap chip!) — Rather Stunning MCU!!! — #arduSerie 16</p><p id="3892"><a href="https://readmedium.com/flashing-the-official-espressif-firmware-in-esp8266-arduserie-17-2234fc088076"><b>Flashing The Official ESPRESSIF Firmware in ESP8266 !!! — Easy ESP8266 Flashing!!!</b></a> — #arduSerie 17</p><p id="1753"><a href="https://readmedium.com/get-started-using-at-commands-w-esp8266-arduserie-19-a09f20571b08"><b>Get Started Using AT Commands w/ ESP8266 — Multiple Connection as TCP Server </b></a>— #arduSerie 19</p><p id="e2da"><a href="https://readmedium.com/your-first-nodemcu-lua-script-flash-on-esp8266-e614b33a6de1"><b>Your First NodeMCU/Lua Script Flash on ESP8266!!!</b> </a>— Let’s get our feet wet with NodeMCU/Lua and see what happens !!- #arduSerie 20</p><p id="b017"><i>— Edited in Nov 2018 — Grammar corrections w/ <a href="http://www.grammarly.com/‎">Grammarly </a>— Send code to gist —</i>Troubleshooting<i></i></p><p id="8c1a"><i>— Edited on Jan 2024 — Grammar corrections w/ <a href="http://www.grammarly.com/‎">Grammarly</a> and some links to adapter —</i></p></article></body>

BUSINESS | PLANNING| THE PLANET

A Prescient Reimagining Called Foresight

How CPA-Canada Is Preparing For The Future

Photo by Krisztian Matyas on Unsplash

In 2018, CPA-Canada (Chartered Professional Accountants of Canada) initiated a discussion with a wide range of stakeholders to create a way forward for the accounting profession in an increasingly digital environment.

They dubbed this reimagining Foresight.

Foresight participants analyzed the potential impacts of the following drivers of change: economic, environmental, technological, geopolitical, and societal shifts.

The intention was to generate ideas and strategies to inform the direction of various aspects of the profession, from auditing to financial management, risk analysis, and skill sets required for the accountants of the future.

The discussions included the brainstorming of scenarios to identify potential future directions for all areas of the accounting profession. The result was The Way Forward, a document that identified four possible scenarios in the future.

The results imagined four scenarios.

SLOW AND STEADY

Conservative institutions use careful analysis to make prudent decisions. Slow-moving yet consensus-driven models where advances in technology are resisted.

High levels of cooperation where the priority is the common good, low willingness to embrace technological and social change

PHOENIX RISING

This scenario imagined a series of events that were a wake-up call to nations, resulting in their renewed commitment to support a civil society. They harness technology for the common good, and equity is a primary focus.

High levels of cooperation where the priority is the common good, high willingness to embrace technological and social change.

TECH TITANS

Governments turn inward but technological change is transforming society. Wearable tech is ubiquitous. Tech giants dominate with very few regulations resulting in an unequal yet highly competitive environment.

Low cooperation where priority is the individual good with society highly willing to embrace technology and social change.

MY WAY

Protectionism turns communities inward and the focus is on local interest. advances in technology are resisted

Low cooperation where priority is the individual or national good with society unwilling to embrace technology and social change.

In most of these scenarios, the effects of global warming, a pandemic-like global event occurs, and advances in technology are either embraced and used for the common good or resisted.

I found this exercise surprisingly prescient, as the pandemic has pushed us into a world where devastating shocks have occurred.

It’s unlikely that the Slow and Steady scenario will play out, as conservative institutions are too slow to adapt to change and too reluctant to adopt recent technological changes. The priority may be the common good, but achieving success will require more flexibility when it comes to technology.

There is some evidence of political leaders uniting around the idea of making commitments for the common good. This would be a reflection of the Phoenix Rising scenario of cooperation.

There is also quite a bit of My Way responses, where nations have hoarded medical supplies and closed borders. More of a nationalism response resulting in fragmented international relations and low cooperation.

As Tech giants tighten their hold on e-commerce and become more powerful financially than most political institutions, the Tech Titans scenario begins to be a strong contender. A focus on the individual is occurring as we are driven indoors in isolation.

Which scenario will prevail?

I believe it will be a hybrid.

It will remain to be seen whether advances in technology will be adopted willingly and how it will be used to improve society in the longer term.

Tag me @treelangdon or add a message to this post if you’d like to connect. I’m a ‘Top Writer’ in Poetry on Medium. Find me on Twitter and Facebook.

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Distributed to #Climate Change

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