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<!doctype html><html lang="en" class="no-js"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><meta http-equiv="x-ua-compatible" content="ie=edge"><meta name="description" content="ESP8266/ESP32 WLAN configuration at run time with web interface"><link rel="canonical" href="https://Hieromon.github.io/AutoConnect/wojson.html"><meta name="author" content="Hieromon Ikasamo"><meta name="lang:clipboard.copy" content="Copy to clipboard"><meta name="lang:clipboard.copied" content="Copied to clipboard"><meta name="lang:search.language" content="en"><meta name="lang:search.pipeline.stopwords" content="True"><meta name="lang:search.pipeline.trimmer" content="True"><meta name="lang:search.result.none" content="No matching documents"><meta name="lang:search.result.one" content="1 matching document"><meta name="lang:search.result.other" content="# matching documents"><meta name="lang:search.tokenizer" content="[\s\-]+"><link rel="shortcut icon" href="assets/images/favicon.png"><meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.3.1"><title>Custom Web pages w/o JSON - AutoConnect for ESP8266/ESP32</title><link rel="stylesheet" href="assets/stylesheets/application.4031d38b.css"><link rel="stylesheet" href="assets/stylesheets/application-palette.224b79ff.css"><meta name="theme-color" content="#3f51b5"><script src="assets/javascripts/modernizr.74668098.js"></script><link href="https://fonts.gstatic.com" rel="preconnect" crossorigin><link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700|Roboto+Mono&display=swap"><style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style><link rel="stylesheet" href="assets/fonts/material-icons.css"><link rel="stylesheet" href="css/paragraph.css"><link rel="stylesheet" href="css/extra.css"><link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.1/css/all.css"><script>window.ga = window.ga || function() {
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})</script><script async src="https://www.google-analytics.com/analytics.js"></script></head><body dir="ltr" data-md-color-primary="indigo" data-md-color-accent="indigo"><svg class="md-svg"><defs><svg xmlns="http://www.w3.org/2000/svg" width="416" height="448" viewBox="0 0 416 448" id="__github"><path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19T128 352t-18.125-8.5-10.75-19T96 304t3.125-20.5 10.75-19T128 256t18.125 8.5 10.75 19T160 304zm160 0q0 10-3.125 20.5t-10.75 19T288 352t-18.125-8.5-10.75-19T256 304t3.125-20.5 10.75-19T288 256t18.125 8.5 10.75 19T320 304zm40 0q0-30-17.25-51T296 232q-10.25 0-48.75 5.25Q229.5 240 208 240t-39.25-2.75Q130.75 232 120 232q-29.5 0-46.75 21T56 304q0 22 8 38.375t20.25 25.75 30.5 15 35 7.375 37.25 1.75h42q20.5 0 37.25-1.75t35-7.375 30.5-15 20.25-25.75T360 304zm56-44q0 51.75-15.25 82.75-9.5 19.25-26.375 33.25t-35.25 21.5-42.5 11.875-42.875 5.5T212 416q-19.5 0-35.5-.75t-36.875-3.125-38.125-7.5-34.25-12.875T37 371.5t-21.5-28.75Q0 312 0 260q0-59.25 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data-md-component="navigation"><div class="md-sidebar__scrollwrap"><div class="md-sidebar__inner"><nav class="md-nav md-nav--primary" data-md-level="0"><label class="md-nav__title md-nav__title--site" for="__drawer"><a href="https://Hieromon.github.io/AutoConnect/" title="AutoConnect for ESP8266/ESP32" class="md-nav__button md-logo"><img src="images/arduino-logo.svg" width="48" height="48"></a>AutoConnect for ESP8266/ESP32</label><div class="md-nav__source"><a href="https://github.com/Hieromon/AutoConnect" title="Go to repository" class="md-source" data-md-source="github"><div class="md-source__icon"><svg viewBox="0 0 24 24" width="24" height="24"><use xlink:href="#__github" width="24" height="24"></use></svg></div><div class="md-source__repository">Hieromon/AutoConnect</div></a></div><ul class="md-nav__list" data-md-scrollfix><li class="md-nav__item"><a href="index.html" title="Overview" class="md-nav__link">Overview</a></li><li class="md-nav__item"><a href="gettingstarted.html" title="Getting started" class="md-nav__link">Getting started</a></li><li class="md-nav__item"><a href="menu.html" title="AutoConnect menu" class="md-nav__link">AutoConnect menu</a></li><li class="md-nav__item"><a href="basicusage.html" title="Basic usage" class="md-nav__link">Basic usage</a></li><li class="md-nav__item"><a href="advancedusage.html" title="Advanced usage" class="md-nav__link">Advanced usage</a></li><li class="md-nav__item md-nav__item--nested"><input class="md-toggle md-nav__toggle" data-md-toggle="nav-6" type="checkbox" id="nav-6"><label class="md-nav__link" for="nav-6">Custom Web pages</label><nav class="md-nav" data-md-component="collapsible" data-md-level="1"><label class="md-nav__title" for="nav-6">Custom Web pages</label><ul class="md-nav__list" data-md-scrollfix><li class="md-nav__item"><a href="acintro.html" title="Custom Web pages with AutoConnect" class="md-nav__link">Custom Web pages with AutoConnect</a></li><li class="md-nav__item"><a href="acelements.html" title="AutoConnectElements" class="md-nav__link">AutoConnectElements</a></li><li class="md-nav__item"><a href="acjson.html" title="Custom Web pages with JSON" class="md-nav__link">Custom Web pages with JSON</a></li><li class="md-nav__item"><a href="achandling.html" title="Handling the custom Web pages" class="md-nav__link">Handling the custom Web pages</a></li></ul></nav></li><li class="md-nav__item md-nav__item--nested"><input class="md-toggle md-nav__toggle" data-md-toggle="nav-7" type="checkbox" id="nav-7"><label class="md-nav__link" for="nav-7">Library APIs</label><nav class="md-nav" data-md-component="collapsible" data-md-level="1"><label class="md-nav__title" for="nav-7">Library APIs</label><ul class="md-nav__list" data-md-scrollfix><li class="md-nav__item"><a href="api.html" title="AutoConnect API" class="md-nav__link">AutoConnect API</a></li><li class="md-nav__item"><a href="apiaux.html" title="AutoConnectAux API" class="md-nav__link">AutoConnectAux API</a></li><li 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class="md-nav__link">Tips for data conversion</a></li><li class="md-nav__item"><a href="menuize.html" title="Attach the menu" class="md-nav__link">Attach the menu</a></li><li class="md-nav__item md-nav__item--active"><input class="md-toggle md-nav__toggle" data-md-toggle="toc" type="checkbox" id="__toc"><label class="md-nav__link md-nav__link--active" for="__toc">Custom Web pages w/o JSON</label><a href="wojson.html" title="Custom Web pages w/o JSON" class="md-nav__link md-nav__link--active">Custom Web pages w/o JSON</a><nav class="md-nav md-nav--secondary"><label class="md-nav__title" for="__toc">Table of contents</label><ul class="md-nav__list" data-md-scrollfix><li class="md-nav__item"><a href="#suppress-increase-in-memory-consumption" title="Suppress increase in memory consumption" class="md-nav__link">Suppress increase in memory consumption</a></li><li class="md-nav__item"><a href="#writing-the-custom-web-pages-without-json" title="Writing the custom Web pages without JSON" class="md-nav__link">Writing the custom Web pages without JSON</a></li><li class="md-nav__item"><a href="#implementation-example-without-arduinojson" title="Implementation example without ArduinoJson" class="md-nav__link">Implementation example without ArduinoJson</a></li></ul></nav></li></ul></nav></li><li class="md-nav__item md-nav__item--nested"><input class="md-toggle md-nav__toggle" data-md-toggle="nav-9" type="checkbox" id="nav-9"><label class="md-nav__link" for="nav-9">Appendix</label><nav class="md-nav" data-md-component="collapsible" data-md-level="1"><label class="md-nav__title" for="nav-9">Appendix</label><ul class="md-nav__list" data-md-scrollfix><li class="md-nav__item"><a href="lsbegin.html" title="Inside AutoConnect::begin" class="md-nav__link">Inside AutoConnect::begin</a></li><li class="md-nav__item"><a href="credit.html" title="Saved credentail access" class="md-nav__link">Saved credentail access</a></li><li class="md-nav__item"><a href="acupload.html" title="File upload handler" class="md-nav__link">File upload handler</a></li><li class="md-nav__item"><a href="colorized.html" title="Custom colorized" class="md-nav__link">Custom colorized</a></li></ul></nav></li><li class="md-nav__item"><a href="faq.html" title="FAQ" class="md-nav__link">FAQ</a></li><li class="md-nav__item"><a href="changelog.html" title="Change log" class="md-nav__link">Change log</a></li><li class="md-nav__item"><a href="license.html" title="License" class="md-nav__link">License</a></li></ul></nav></div></div></div><div class="md-sidebar md-sidebar--secondary" data-md-component="toc"><div class="md-sidebar__scrollwrap"><div class="md-sidebar__inner"><nav class="md-nav md-nav--secondary"><label class="md-nav__title" for="__toc">Table of contents</label><ul class="md-nav__list" data-md-scrollfix><li class="md-nav__item"><a href="#suppress-increase-in-memory-consumption" title="Suppress increase in memory consumption" class="md-nav__link">Suppress increase in memory consumption</a></li><li class="md-nav__item"><a href="#writing-the-custom-web-pages-without-json" title="Writing the custom Web pages without JSON" class="md-nav__link">Writing the custom Web pages without JSON</a></li><li class="md-nav__item"><a href="#implementation-example-without-arduinojson" title="Implementation example without ArduinoJson" class="md-nav__link">Implementation example without ArduinoJson</a></li></ul></nav></div></div></div><div class="md-content"><article class="md-content__inner md-typeset"><h1>Custom Web pages w/o JSON</h1><h2 id="suppress-increase-in-memory-consumption">Suppress increase in memory consumption<a class="headerlink" href="#suppress-increase-in-memory-consumption" title="Permanent link">&para;</a></h2>
<p>Custom Web page processing consumes a lot of memory. AutoConnect will take a whole string of the JSON document for the custom Web pages into memory. The required buffer size for the JSON document of example sketch <em>mqttRSSI</em> reaches approximately 3000 bytes. And actually, it needs twice the heap area. Especially this constraint will be a problem with the ESP8266 which has a heap size poor.</p>
<p>AutoConnect can handle custom Web pages without using JSON. In that case, since the ArduinoJson library will not be bound, the sketch size will also be reduced.</p>
<h2 id="writing-the-custom-web-pages-without-json">Writing the custom Web pages without JSON<a class="headerlink" href="#writing-the-custom-web-pages-without-json" title="Permanent link">&para;</a></h2>
<p>To handle the custom Web pages without using JSON, follow the steps below.</p>
<ol>
<li>Create or define <a href="apiaux.html">AutoConnectAux</a> for each page.</li>
<li>Create or define <a href="acelements.html">AutoConnectElement(s)</a>.</li>
<li>Add <a href="acelements.html">AutoConnectElement(s)</a> to AutoConnectAux.</li>
<li>Create more AutoConnectAux containing <a href="acelements.html">AutoConnectElement(s)</a>, if necessary.</li>
<li>Register the request handlers for the custom Web pages.</li>
<li><a href="api.html#join">Join</a> prepared AutoConnectAux(s) to AutoConnect.</li>
<li>Invoke <a href="api.html#begin">AutoConnect::begin()</a>.</li>
</ol>
<p>In addition to the above procedure, to completely cut off for binding with the ArduinoJson library, turn off the ArduinoJson use indicator which is declared by the <a href="api.html#defined-macros">AutoConnect definitions</a>. Its declaration is in <strong>AutoConnectDefs.h</strong> file.<sup id="fnref:1"><a class="footnote-ref" href="#fn:1" rel="footnote">1</a></sup></p>
<div class="codehilite" style="background: #272822"><pre style="line-height: 125%"><span></span><span style="color: #75715e">// Comment out the AUTOCONNECT_USE_JSON macro to detach the ArduinoJson.</span>
<span style="color: #75715e">#define AUTOCONNECT_USE_JSON</span>
</pre></div>
<div class="admonition caution">
<p class="admonition-title">JSON processing will be disabled</p>
<p>Commenting out the <strong>AUTOCONNECT_USE_JSON</strong> macro invalidates all functions related to JSON processing. If the sketch is using the JSON function, it will result in a compile error.</p>
</div>
<h2 id="implementation-example-without-arduinojson">Implementation example without ArduinoJson<a class="headerlink" href="#implementation-example-without-arduinojson" title="Permanent link">&para;</a></h2>
<p>The code excluding JSON processing from the mqttRSSI sketch attached to the library is as follows. <small>(It is a part of code. Refer to mqttRSSI_NA.ino for the whole sketch.)</small></p>
<p><i class="fa fa-code"></i> The JSON document for mqttRSSI</p>
<p><div class="codehilite" style="background: #272822"><pre style="line-height: 125%"><span></span><span style="color: #f8f8f2">[</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;title&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;MQTT Setting&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;uri&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;/mqtt_setting&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;menu&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #66d9ef">true</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;element&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #f8f8f2">[</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;header&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACText&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;&lt;h2&gt;MQTT broker settings&lt;/h2&gt;&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;style&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;text-align:center;color:#2f4f4f;padding:10px;&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;caption&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACText&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Publishing the WiFi signal strength to MQTT channel. RSSI value of ESP8266 to the channel created on ThingSpeak&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;style&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;font-family:serif;color:#4682b4;&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;mqttserver&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACInput&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;label&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Server&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;pattern&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\\-]*[A-Za-z0-9])$&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;placeholder&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;MQTT broker server&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;channelid&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACInput&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;label&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Channel ID&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;pattern&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;^[0-9]{6}$&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;userkey&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACInput&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;label&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;User Key&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;apikey&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACInput&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;label&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;API Key&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;newline&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACElement&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;&lt;hr&gt;&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;uniqueid&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACCheckbox&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;unique&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;label&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Use APID unique&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;checked&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #66d9ef">false</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;period&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACRadio&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #f8f8f2">[</span>
<span style="color: #e6db74">&quot;30 sec.&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #e6db74">&quot;60 sec.&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #e6db74">&quot;180 sec.&quot;</span>
<span style="color: #f8f8f2">],</span>
<span style="color: #f92672">&quot;label&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Update period&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;arrange&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;vertical&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;checked&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #ae81ff">1</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;newline&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACElement&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;&lt;hr&gt;&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;hostname&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACInput&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;label&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ESP host name&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;pattern&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;^([a-zA-Z0-9]([a-zA-Z0-9-])*[a-zA-Z0-9]){1,32}$&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;save&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACSubmit&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Save&amp;amp;Start&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;uri&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;/mqtt_save&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;discard&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACSubmit&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Discard&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;uri&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;/&quot;</span>
<span style="color: #f8f8f2">}</span>
<span style="color: #f8f8f2">]</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;title&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;MQTT Setting&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;uri&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;/mqtt_save&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;menu&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #66d9ef">false</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;element&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #f8f8f2">[</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;caption&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACText&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;&lt;h4&gt;Parameters saved as:&lt;/h4&gt;&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;style&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;text-align:center;color:#2f4f4f;padding:10px;&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;parameters&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACText&quot;</span>
<span style="color: #f8f8f2">},</span>
<span style="color: #f8f8f2">{</span>
<span style="color: #f92672">&quot;name&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;clear&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;type&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;ACSubmit&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;value&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;Clear channel&quot;</span><span style="color: #f8f8f2">,</span>
<span style="color: #f92672">&quot;uri&quot;</span><span style="color: #f8f8f2">:</span> <span style="color: #e6db74">&quot;/mqtt_clear&quot;</span>
<span style="color: #f8f8f2">}</span>
<span style="color: #f8f8f2">]</span>
<span style="color: #f8f8f2">}</span>
<span style="color: #f8f8f2">]</span>
</pre></div>
<span style="margin-right:6px;margin-top:2px;"><img align="middle" width="32" height="32" src="images/arrow_down.png"></span><i class="fa fa-code"></i> Exclude the JSON and replace to the AutoConnectElements natively</p>
<div class="codehilite" style="background: #272822"><pre style="line-height: 125%"><span></span><span style="color: #75715e">// In the declaration,</span>
<span style="color: #75715e">// Declare AutoConnectElements for the page asf /mqtt_setting</span>
<span style="color: #f8f8f2">ACText(header,</span> <span style="color: #e6db74">&quot;&lt;h2&gt;MQTT broker settings&lt;/h2&gt;&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;text-align:center;color:#2f4f4f;padding:10px;&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACText(caption,</span> <span style="color: #e6db74">&quot;Publishing the WiFi signal strength to MQTT channel. RSSI value of ESP8266 to the channel created on ThingSpeak&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;font-family:serif;color:#4682b4;&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACInput(mqttserver,</span> <span style="color: #e6db74">&quot;&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;Server&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9</span><span style="color: #ae81ff">\\</span><span style="color: #e6db74">-]*[a-zA-Z0-9])</span><span style="color: #ae81ff">\\</span><span style="color: #e6db74">.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9</span><span style="color: #ae81ff">\\</span><span style="color: #e6db74">-]*[A-Za-z0-9])$&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;MQTT broker server&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACInput(channelid,</span> <span style="color: #e6db74">&quot;&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;Channel ID&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;^[0-9]{6}$&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACInput(userkey,</span> <span style="color: #e6db74">&quot;&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;User Key&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACInput(apikey,</span> <span style="color: #e6db74">&quot;&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;API Key&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACElement(newline,</span> <span style="color: #e6db74">&quot;&lt;hr&gt;&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACCheckbox(uniqueid,</span> <span style="color: #e6db74">&quot;unique&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;Use APID unique&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACRadio(period,</span> <span style="color: #f8f8f2">{</span> <span style="color: #e6db74">&quot;30 sec.&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;60 sec.&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;180 sec.&quot;</span> <span style="color: #f8f8f2">},</span> <span style="color: #e6db74">&quot;Update period&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #f8f8f2">AC_Vertical,</span> <span style="color: #ae81ff">1</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACSubmit(save,</span> <span style="color: #e6db74">&quot;Start&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;mqtt_save&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACSubmit(discard,</span> <span style="color: #e6db74">&quot;Discard&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;/&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #75715e">// Declare the custom Web page as /mqtt_setting and contains the AutoConnectElements</span>
<span style="color: #f8f8f2">AutoConnectAux</span> <span style="color: #a6e22e">mqtt_setting</span><span style="color: #f8f8f2">(</span><span style="color: #e6db74">&quot;/mqtt_setting&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;MQTT Setting&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #f8f8f2">true,</span> <span style="color: #f8f8f2">{</span>
<span style="color: #f8f8f2">header,</span>
<span style="color: #f8f8f2">caption,</span>
<span style="color: #f8f8f2">mqttserver,</span>
<span style="color: #f8f8f2">channelid,</span>
<span style="color: #f8f8f2">userkey,</span>
<span style="color: #f8f8f2">apikey,</span>
<span style="color: #f8f8f2">newline,</span>
<span style="color: #f8f8f2">uniqueid,</span>
<span style="color: #f8f8f2">period,</span>
<span style="color: #f8f8f2">newline,</span>
<span style="color: #f8f8f2">save,</span>
<span style="color: #f8f8f2">discard</span>
<span style="color: #f8f8f2">});</span>
<span style="color: #75715e">// Declare AutoConnectElements for the page as /mqtt_save</span>
<span style="color: #f8f8f2">ACText(caption2,</span> <span style="color: #e6db74">&quot;&lt;h4&gt;Parameters available as:&lt;/h4&gt;&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;text-align:center;color:#2f4f4f;padding:10px;&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #f8f8f2">ACText(parameters);</span>
<span style="color: #f8f8f2">ACSubmit(clear,</span> <span style="color: #e6db74">&quot;Clear channel&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;/mqtt_clear&quot;</span><span style="color: #f8f8f2">);</span>
<span style="color: #75715e">// Declare the custom Web page as /mqtt_save and contains the AutoConnectElements</span>
<span style="color: #f8f8f2">AutoConnectAux</span> <span style="color: #a6e22e">mqtt_save</span><span style="color: #f8f8f2">(</span><span style="color: #e6db74">&quot;/mqtt_save&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #e6db74">&quot;MQTT Setting&quot;</span><span style="color: #f8f8f2">,</span> <span style="color: #f8f8f2">false,</span> <span style="color: #f8f8f2">{</span>
<span style="color: #f8f8f2">caption2,</span>
<span style="color: #f8f8f2">parameters,</span>
<span style="color: #f8f8f2">clear</span>
<span style="color: #f8f8f2">});</span>
<span style="color: #75715e">// In the setup(),</span>
<span style="color: #75715e">// Join the custom Web pages and performs begin</span>
<span style="color: #f8f8f2">portal.join({</span> <span style="color: #f8f8f2">mqtt_setting,</span> <span style="color: #f8f8f2">mqtt_save</span> <span style="color: #f8f8f2">});</span>
<span style="color: #f8f8f2">portal.begin();</span>
</pre></div>
<div class="footnote">
<hr />
<ol>
<li id="fn:1">
<p>Detaching the ArduinoJson library reduces the sketch size by approximately 10K bytes.&#160;<a class="footnote-backref" href="#fnref:1" rev="footnote" title="Jump back to footnote 1 in the text">&#8617;</a></p>
</li>
</ol>
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