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1213 lines
39 KiB
1213 lines
39 KiB
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<a href="https://Hieromon.github.io/AutoConnect/" title="AutoConnect for ESP8266/ESP32" aria-label="AutoConnect for ESP8266/ESP32" class="md-header-nav__button md-logo">
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<img alt="logo" src="images/arduino-logo.svg" width="24" height="24">
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<div class="md-flex__ellipsis md-header-nav__title" data-md-component="title">
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<span class="md-header-nav__topic">
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AutoConnect for ESP8266/ESP32
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</span>
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<span class="md-header-nav__topic">
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Basic usage
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Hieromon/AutoConnect
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</a>
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AutoConnect for ESP8266/ESP32
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<div class="md-nav__source">
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<a href="https://github.com/Hieromon/AutoConnect" title="Go to repository" class="md-source" data-md-source="github">
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</svg>
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</div>
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<div class="md-source__repository">
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Hieromon/AutoConnect
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</div>
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</a>
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</div>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="index.html" title="Overview" class="md-nav__link">
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Overview
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</a>
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</li>
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<li class="md-nav__item">
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<a href="gettingstarted.html" title="Getting started" class="md-nav__link">
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Getting started
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</a>
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</li>
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<li class="md-nav__item">
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<a href="menu.html" title="AutoConnect menu" class="md-nav__link">
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AutoConnect menu
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</a>
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</li>
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<li class="md-nav__item md-nav__item--active">
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<label class="md-nav__link md-nav__link--active" for="__toc">
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Basic usage
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</label>
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<a href="basicusage.html" title="Basic usage" class="md-nav__link md-nav__link--active">
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Basic usage
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</a>
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<nav class="md-nav md-nav--secondary">
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<label class="md-nav__title" for="__toc">Table of contents</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="#simple-usage" class="md-nav__link">
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Simple usage
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</a>
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<nav class="md-nav">
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<ul class="md-nav__list">
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<li class="md-nav__item">
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<a href="#embed-to-the-sketches" class="md-nav__link">
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Embed to the sketches
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item">
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<a href="#basic-usage" class="md-nav__link">
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Basic usage
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</a>
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<nav class="md-nav">
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<ul class="md-nav__list">
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<li class="md-nav__item">
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<a href="#basic-logic-sequence-for-the-user-sketches" class="md-nav__link">
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Basic logic sequence for the user sketches
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</a>
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<nav class="md-nav">
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<ul class="md-nav__list">
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<li class="md-nav__item">
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<a href="#1-a-typical-logic-sequence" class="md-nav__link">
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1. A typical logic sequence
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#2-declare-autoconnect-object" class="md-nav__link">
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2. Declare AutoConnect object
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#3-no-need-wifibegin" class="md-nav__link">
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3. No need WiFI.begin(...)
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#4-alternate-esp8266webserverbegin-and-webserverbegin" class="md-nav__link">
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4. Alternate ESP8266WebServer::begin() and WebServer::begin()
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#5-autoconnectbegin-with-ssid-and-password" class="md-nav__link">
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5. AutoConnect::begin with SSID and Password
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#6-use-esp8266webserveron-and-webserveron-to-handle-url" class="md-nav__link">
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6. Use ESP8266WebServer::on and WebServer::on to handle URL
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#7-use-either-esp8266webserverhandleclientwebserverhandleclient-or-autoconnecthandleclient" class="md-nav__link">
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7. Use either ESP8266WebServer::handleClient()/WebServer::handleClient() or AutoConnect::handleClient()
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item">
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<a href="#esp8266webserverwebserver-hosted-or-parasitic" class="md-nav__link">
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ESP8266WebServer/WebServer hosted or parasitic
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</a>
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</li>
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</ul>
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</nav>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item">
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<a href="advancedusage.html" title="Advanced usage" class="md-nav__link">
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Advanced usage
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</a>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-toggle md-nav__toggle" data-md-toggle="nav-6" type="checkbox" id="nav-6">
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<label class="md-nav__link" for="nav-6">
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Custom Web pages
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</label>
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<nav class="md-nav" data-md-component="collapsible" data-md-level="1">
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<label class="md-nav__title" for="nav-6">
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Custom Web pages
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="acintro.html" title="Custom Web pages with AutoConnect" class="md-nav__link">
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Custom Web pages with AutoConnect
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</a>
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</li>
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<li class="md-nav__item">
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<a href="acelements.html" title="AutoConnectElements" class="md-nav__link">
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AutoConnectElements
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</a>
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</li>
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<li class="md-nav__item">
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<a href="acjson.html" title="Custom Web pages with JSON" class="md-nav__link">
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Custom Web pages with JSON
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</a>
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</li>
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<li class="md-nav__item">
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<a href="achandling.html" title="Handling the custom Web pages" class="md-nav__link">
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Handling the custom Web pages
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-toggle md-nav__toggle" data-md-toggle="nav-7" type="checkbox" id="nav-7">
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<label class="md-nav__link" for="nav-7">
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OTA Updates
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</label>
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<nav class="md-nav" data-md-component="collapsible" data-md-level="1">
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<label class="md-nav__title" for="nav-7">
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OTA Updates
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="otaupdate.html" title="OTA Updates" class="md-nav__link">
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OTA Updates
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</a>
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</li>
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Inside AutoConnect::begin
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File upload handler
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1. A typical logic sequence
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2. Declare AutoConnect object
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4. Alternate ESP8266WebServer::begin() and WebServer::begin()
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5. AutoConnect::begin with SSID and Password
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6. Use ESP8266WebServer::on and WebServer::on to handle URL
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7. Use either ESP8266WebServer::handleClient()/WebServer::handleClient() or AutoConnect::handleClient()
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ESP8266WebServer/WebServer hosted or parasitic
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<article class="md-content__inner md-typeset">
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<h1>Basic usage</h1>
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<h2 id="simple-usage">Simple usage<a class="headerlink" href="#simple-usage" title="Permanent link">¶</a></h2>
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<h3 id="embed-to-the-sketches"><i class="fa fa-edit"></i> Embed to the sketches<a class="headerlink" href="#embed-to-the-sketches" title="Permanent link">¶</a></h3>
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<p>How embed the AutoConnect to the sketches you have. Most simple approach to applying AutoConnect for the existing sketches, follow the below steps. The below sketch is for ESP8266. For ESP32, replace <code>ESP8266WebServer</code> with <code>WebServer</code> and <code>ESP8266WiFi.h</code> with <code>WiFi.h</code> respectively.</p>
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<p><img src="images/BeforeAfter.svg" /></p>
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<ul class="ulsty-edit" style="list-style:none;">
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<li>Insert <code class="codehilite"><span class="cp">#include</span> <span class="cpf"><AutoConnect.h></span></code> to behind of <code class="codehilite"><span class="cp">#include</span> <span class="cpf"><ESP8266WebServer.h></span></code>.</li>
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<li>Insert <code class="codehilite"><span class="na">AutoConnect</span> <em>PORTAL(WEBSERVER);</em></code> to behind of <code class="codehilite"><span class="na">ESP8266WebServer</span> <em>WEBSERVER;</em></code> declaration.<sup id="fnref:1"><a class="footnote-ref" href="#fn:1" rel="footnote">1</a></sup></li>
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<li>Remove <code class="codehilite">WiFi.<span class="na">begin</span>(<em>SSID</em>,<em>PSK</em>)</code> and the subsequent logic for the connection status check.</li>
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<li>Replace <code class="codehilite"><em>WEBSERVER</em>.<span class="na">begin</span><span class="p">()</span></code> to <code class="codehilite"><em>PORTAL</em>.<span class="na">begin</span><span class="p">()</span></code>.<sup id="fnref:2"><a class="footnote-ref" href="#fn:2" rel="footnote">2</a></sup></li>
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<li>Replace <code class="codehilite"><em>WEBSERVER</em>.<span class="na">handleClient</span><span class="p">()</span></code> to <code class="codehilite"><em>PORTAL</em>.<span class="na">handleClient</span><span class="p">()</span></code>.<sup id="fnref:3"><a class="footnote-ref" href="#fn:3" rel="footnote">3</a></sup></li>
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<li>If the connection checks logic is needed, you can check the return value according to <code class="codehilite"><em>PORTAL</em>.<span class="na">begin</span><span class="p">()</span></code> with <code class="codehilite">true</code> or <code class="codehilite">false</code>.</li>
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</ul>
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<h2 id="basic-usage">Basic usage<a class="headerlink" href="#basic-usage" title="Permanent link">¶</a></h2>
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<h3 id="basic-logic-sequence-for-the-user-sketches"><i class="fa fa-caret-right"></i> Basic logic sequence for the user sketches<a class="headerlink" href="#basic-logic-sequence-for-the-user-sketches" title="Permanent link">¶</a></h3>
|
|
<h4 id="1-a-typical-logic-sequence">1. A typical logic sequence<a class="headerlink" href="#1-a-typical-logic-sequence" title="Permanent link">¶</a></h4>
|
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<div class="admonition note">
|
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<ol>
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<li><strong>Include headers,</strong> <code>ESP8266WebServer.h</code>/<code>WebServer.h</code> and <code>AutoConnect.h</code> </li>
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<li><strong>Declare an ESP8266WebServer variable for ESP8266 or a WebServer variable for ESP32.</strong> </li>
|
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<li><strong>Declare an AutoConnect variable.</strong> </li>
|
|
<li><strong>Implement the URL handlers provided for the </strong><code>on</code><strong> method of ESP8266WebServer/WebServer with the <em>function()</em>.</strong> </li>
|
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<li><strong>setup()</strong><br />
|
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5.1 <strong>Sets URL handler the <em>function()</em> to ESP8266WebServer/WebServer by</strong><code>ESP8266WebServer::on</code><strong>/</strong><code>WebServer::on</code><strong>.</strong><br />
|
|
5.2 <strong>Starts </strong><code>AutoConnect::begin()</code><strong>.</strong><br />
|
|
5.3 <strong>Check WiFi connection status.</strong> </li>
|
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<li><strong>loop()</strong><br />
|
|
6.1 <strong>Do the process for actual sketch.</strong><br />
|
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6.2 <strong>Invokes </strong><code>AutoConnect::handleClient()</code><strong>, or invokes </strong><code>ESP8266WebServer::handleClient()</code><strong>/</strong><code>WebServer::handleClient</code><strong> then </strong><code>AutoConnect::handleRequest()</code><strong>.</strong> </li>
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</ol>
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</div>
|
|
<h4 id="2-declare-autoconnect-object">2. Declare AutoConnect object<a class="headerlink" href="#2-declare-autoconnect-object" title="Permanent link">¶</a></h4>
|
|
<p><a href="#esp8266webserver-hosted-or-parasitic">Two options</a> are available for <a href="api.html#constructors">AutoConnect constructor</a>.</p>
|
|
<p><div class="codehilite" style="background: #272822"><pre style="line-height: 125%"><span></span><code><span style="color: #f8f8f2">AutoConnect</span> <span style="color: #a6e22e">VARIABLE</span><span style="color: #f8f8f2">(</span><span style="color: #f92672">&</span><span style="color: #f8f8f2">ESP8266WebServer);</span> <span style="color: #7a7a7a">// For ESP8266</span>
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<span style="color: #f8f8f2">AutoConnect</span> <span style="color: #a6e22e">VARIABLE</span><span style="color: #f8f8f2">(</span><span style="color: #f92672">&</span><span style="color: #f8f8f2">WebServer);</span> <span style="color: #7a7a7a">// For ESP32</span>
|
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</code></pre></div>
|
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or</p>
|
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<div class="codehilite" style="background: #272822"><pre style="line-height: 125%"><span></span><code><span style="color: #f8f8f2">AutoConnect</span> <span style="color: #f8f8f2">VARIABLE;</span>
|
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</code></pre></div>
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<ul>
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<li>
|
|
<p><strong>The parameter with an ESP8266WebServer/WebServer variable:</strong> An ESP8266WebServer/WebServer object variable must be declared. AutoConnect uses its variable to handles the <a href="menu.html">AutoConnect menu</a>.</p>
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</li>
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<li>
|
|
<p><strong>With no parameter:</strong> The sketch does not declare ESP8266WebServer/WebServer object. In this case, AutoConnect allocates an instance of the ESP8266WebServer/WebServer internally. The logic sequence of the sketch is somewhat different as the above. To register a URL handler function by <em>ESP8266WebServer::on</em> or <em>WebServer::on</em> should be performed after <a href="api.html#begin"><em>AutoConnect::begin</em></a>.</p>
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</li>
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</ul>
|
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<h4 id="3-no-need-wifibegin">3. No need WiFI.begin(...)<a class="headerlink" href="#3-no-need-wifibegin" title="Permanent link">¶</a></h4>
|
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<p>AutoConnect internally performs <em>WiFi.begin</em> to establish a WiFi connection. There is no need for a general process to establish a connection using <em>WiFi.begin</em> with a sketch code.</p>
|
|
<h4 id="4-alternate-esp8266webserverbegin-and-webserverbegin">4. Alternate ESP8266WebServer::begin() and WebServer::begin()<a class="headerlink" href="#4-alternate-esp8266webserverbegin-and-webserverbegin" title="Permanent link">¶</a></h4>
|
|
<p><a href="api.html#begin"><em>AutoConnect::begin</em></a> executes <em>ESP8266WebServer::begin</em>/<em>WebServer::begin</em> internally too and it starts the DNS server to behave as a Captive portal. So it is not needed to call <em>ESP8266WebServer::begin</em>/<em>WebServer::begin</em> in the sketch.</p>
|
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<div class="admonition info">
|
|
<p class="admonition-title">Why DNS Server starts</p>
|
|
<p>AutoConnect traps the detection of the captive portal and achieves a connection with the WLAN interactively by the AutoConnect menu. It responds SoftAP address to all DNS queries temporarily to trap. Once a WiFi connection establishes, the DNS server contributed by AutoConnect stops.</p>
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</div>
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<h4 id="5-autoconnectbegin-with-ssid-and-password">5. AutoConnect::begin with SSID and Password<a class="headerlink" href="#5-autoconnectbegin-with-ssid-and-password" title="Permanent link">¶</a></h4>
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<p>SSID and Password can also specify by <a href="api.html#begin"><em>AutoConnect::begin</em></a>. ESP8266/ESP32 uses provided SSID and Password explicitly. If the connection false with specified SSID with Password then a captive portal is activated. SSID and Password are not present, ESP8266 SDK will attempt to connect using the still effectual SSID and password. Usually, it succeeds.</p>
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<h4 id="6-use-esp8266webserveron-and-webserveron-to-handle-url">6. Use ESP8266WebServer::on and WebServer::on to handle URL<a class="headerlink" href="#6-use-esp8266webserveron-and-webserveron-to-handle-url" title="Permanent link">¶</a></h4>
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<p>AutoConnect is designed to coexist with the process for handling the web pages by user sketches. The page processing function which will send an HTML to the client invoked by the "<em>on::ESP8266WebServer</em>" or the "<em>on::WebServer</em>" function is the same as when using ESP8266WebServer/WebServer natively.</p>
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<h4 id="7-use-either-esp8266webserverhandleclientwebserverhandleclient-or-autoconnecthandleclient">7. Use either ESP8266WebServer::handleClient()/WebServer::handleClient() or AutoConnect::handleClient()<a class="headerlink" href="#7-use-either-esp8266webserverhandleclientwebserverhandleclient-or-autoconnecthandleclient" title="Permanent link">¶</a></h4>
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<p>Both classes member function name is the same: <em>handleClient</em>, but the behavior is different. Using the AutoConnect embedded along with ESP8266WebServer::handleClient/WebServer::handleClient has limitations. Refer to the below section for details. </p>
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<h3 id="esp8266webserverwebserver-hosted-or-parasitic"><i class="fa fa-caret-right"></i> ESP8266WebServer/WebServer hosted or parasitic<a class="headerlink" href="#esp8266webserverwebserver-hosted-or-parasitic" title="Permanent link">¶</a></h3>
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<p>The interoperable process with an ESP8266WebServer/WebServer depends on the parameters of the <a href="api.html#constructors">AutoConnect constructor</a>.</p>
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<table>
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<thead>
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<tr>
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<th>Declaration parameter for the constructor</th>
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<th>Use ESP8266WebServer::handleClient or WebServer::handleClient only</th>
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<th>Use AutoConnect::handleClient</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><a href="api.html#constructors">None</a></td>
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<td>AutoConnect menu not available.<br>To use AutoConnect menu, need <a href="api.html#handlerequest">AutoConnect::handleRequest()</a>.<br>also to use ESP8266WebServer/WebServer natively, need <a href="api.html#host">AutoConnect::host()</a>.</td>
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<td>AutoConnect menu available.<br>To use ESP8266WebServer/WebServer natively, need <a href="api.html#host">AutoConnect::host()</a>.</td>
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</tr>
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<tr>
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<td><a href="api.html#withparameter">Reference to ESP8266WebServer/WebServer</a></td>
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<td>AutoConnect menu not available.<br>To use AutoConnect menu, need <a href="api.html#handlerequest">AutoConnect::handleRequest()</a>.</td>
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<td>AutoConnect menu available.</td>
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</tr>
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</tbody>
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</table>
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<ul>
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<li>
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<p><strong>By declaration for the AutoConnect variable with no parameter</strong>: The ESP8266WebServer/WebServer instance is hosted by AutoConnect automatically then the sketches use <a href="api.html#host"><em>AutoConnect::host</em></a> as API to get it after <a href="api.html#begin"><em>AutoConnect::begin</em></a> performed.</p>
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</li>
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<li>
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<p><strong>By declaration for the AutoConnect variable with the reference of ESP8266WebServer/WebServer</strong>: AutoConnect will use it. The sketch can use it is too.</p>
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</li>
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<li>
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<p><strong>In use ESP8266WebServer::handleClient()/WebServer::handleClient()</strong>: AutoConnect menu can be dispatched but not works normally. It is necessary to call <a href="api.html#void-handlerequest"><em>AutoConnect::handleRequest</em></a> after <em>ESP8255WebServer::handleClient</em>/<em>WebServer::handleClient</em> invoking.</p>
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</li>
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<li>
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<p><strong>In use <a href="api.html#void-handleclient">AutoConnect::handleClient()</a></strong>: The handleClient() process and the AutoConnect menu is available without calling <em>ESP8266WebServer::handleClient</em>.</p>
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</li>
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</ul>
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<div class="admonition info">
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<p class="admonition-title">Why AutoConnect::handleRequest is needed when using ESP8266WebServer::handleClient/WebServer::handleClient</p>
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<p>The AutoConnect menu function may affect WiFi connection state. It follows that the menu process must execute outside <em>ESP8266WebServer::handleClient</em> and <em>WebServer::handleClient</em>.<br />
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<a href="api.html#void-handleclient"><em>AutoConnect::handleClient</em></a> is equivalent <em>ESP8266WebServer::handleClient</em> and <em>WEbServer::handleClient</em> included <a href="api.html#void-handlerequest"><em>AutoConnect::handleRequest</em></a>.</p>
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</div>
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<div class="footnote">
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<hr />
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<ol>
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<li id="fn:1">
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<p>Each <em>VARIABLE</em> conforms to the actual declaration in the sketches. <a class="footnote-backref" href="#fnref:1" title="Jump back to footnote 1 in the text">↩</a></p>
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</li>
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<li id="fn:2">
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<p>WiFi SSID and Password can be specified AutoConnect::begin() too. <a class="footnote-backref" href="#fnref:2" title="Jump back to footnote 2 in the text">↩</a></p>
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</li>
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<li id="fn:3">
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<p>Replacement the <strong>handleClient</strong> method is not indispensable. AutoConnect can still connect with the captive portal as it is ESP8266WebServer::handleClient. But it can <strong>not valid AutoConnect menu</strong>. <a class="footnote-backref" href="#fnref:3" title="Jump back to footnote 3 in the text">↩</a></p>
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</li>
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</ol>
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</div>
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