Hieromon Ikasamo
6 years ago
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AutoConnect for ESP8266 |
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Basic usage |
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Overview |
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AutoConnect for ESP8266 |
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Hieromon/AutoConnect |
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Getting started |
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Basic usage |
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Basic usage |
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Simple usage |
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Embed to the sketches |
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Basic usage |
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Basic logic sequence for the user sketches |
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<a href="#1-a-typical-logic-sequence" title="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 class="md-nav__item"> |
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<a href="#2-declare-autoconnect-object" title="2. Declare AutoConnect object" class="md-nav__link"> |
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2. Declare AutoConnect object |
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</li> |
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<li class="md-nav__item"> |
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<a href="#3-no-need-wifibegin" title="3. No need WiFI.begin(...)" class="md-nav__link"> |
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3. No need WiFI.begin(...) |
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<li class="md-nav__item"> |
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<a href="#4-alternate-esp8266webserverbegin" title="4. Alternate ESP8266WebServer::begin()" class="md-nav__link"> |
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4. Alternate ESP8266WebServer::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" title="5. AutoConnect::begin with SSID and Password" class="md-nav__link"> |
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5. AutoConnect::begin with SSID and Password |
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<li class="md-nav__item"> |
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<a href="#6-use-esp8266webserveron-to-handle-url" title="6. Use ESP8266WebServer::on to handle URL" class="md-nav__link"> |
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6. Use ESP8266WebServer::on to handle URL |
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</a> |
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<li class="md-nav__item"> |
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<a href="#7-use-either-esp8266webserverhandleclient-or-autoconnecthandleclient" title="7. Use either ESP8266WebServer::handleClient() or AutoConnect::handleClient()" class="md-nav__link"> |
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7. Use either ESP8266WebServer::handleClient() or AutoConnect::handleClient() |
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<a href="#esp8266webserver-hosted-or-parasitic" title=" ESP8266WebServer hosted or parasitic" class="md-nav__link"> |
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ESP8266WebServer hosted or parasitic |
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Advanced usage |
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Library APIs |
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Examples |
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FAQ |
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Simple usage |
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<h1>Basic usage</h1> |
||||
|
||||
<h2 id="simple-usage">Simple usage<a class="headerlink" href="#simple-usage" title="Permanent link">¶</a></h2> |
||||
<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> |
||||
<p>How embed the AutoConnect to the sketches you have. Most simple approach to applying AutoConnect for the existing sketches, follow the below steps.</p> |
||||
<p><img src="../images/BeforeAfter.svg" /></p> |
||||
<ul class="ulsty-edit" style="list-style:none;"> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
</ul> |
||||
|
||||
<h2 id="basic-usage">Basic usage<a class="headerlink" href="#basic-usage" title="Permanent link">¶</a></h2> |
||||
<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> |
||||
<div class="admonition note"> |
||||
<ol> |
||||
<li><strong>Include headers,</strong> <code class="codehilite">ESP8266WebServer.h</code> and <code class="codehilite">AutoConnect.h</code> </li> |
||||
<li><strong>Declare ESP8266WebServer variable.</strong> </li> |
||||
<li><strong>Declare AutoConnect variable.</strong> </li> |
||||
<li><strong>Implements the URL handler <em>function()</em>.</strong> </li> |
||||
<li><strong>setup()</strong><br /> |
||||
5.1 <strong>Sets URL handler <em>function()</em> to ESP8266WebServer by</strong><code class="codehilite">ESP8266WebServer::on</code><strong>.</strong><br /> |
||||
5.2 <strong>Starts </strong><code class="codehilite">AutoConnect::begin()</code><strong>.</strong><br /> |
||||
5.3 <strong>Check connection status.</strong> </li> |
||||
<li><strong>loop()</strong><br /> |
||||
6.1 <strong>Invokes </strong><code class="codehilite">AutoConnect::handleClient()</code><strong>,<br>or invokes </strong><code class="codehilite">ESP8266WebServer::handleClient()</code><strong> then </strong><code class="codehilite">AutoConnect::handleRequest()</code><strong>.</strong><br /> |
||||
6.2 <strong>Do the process for actual sketch.</strong> </li> |
||||
</ol> |
||||
</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/index.html#constructors">AutoConnect constructor</a>.</p> |
||||
<p><div class="codehilite"><pre><span></span><span class="n">AutoConnect</span> <span class="nf">VARIABLE</span><span class="p">(</span><span class="o">&</span><span class="n">ESP8266WebServer</span><span class="p">);</span> |
||||
</pre></div> |
||||
or</p> |
||||
<div class="codehilite"><pre><span></span><span class="n">AutoConnect</span> <span class="n">VARIABLE</span><span class="p">;</span> |
||||
</pre></div> |
||||
|
||||
<ul> |
||||
<li> |
||||
<p><strong>Parameter with ESP8266WebServer variable:</strong> An ESP8266WebServer object variable must be declared in the sketch. AutoConnect uses its variable for handling the <a href="../menu/index.html">AutoConnect menu</a>.</p> |
||||
</li> |
||||
<li> |
||||
<p><strong>With no parameter:</strong> The sketch does not declare ESP8266WebServer object. In this case, AutoConnect allocates an instance of the ESP8266WebServer internally and the logic sequence of the sketch is somewhat different as the above. To register a URL handler function by <em>ESP8266WebServer::on</em> should be performed after <a href="../api/index.html#begin"><em>AutoConnect::begin</em></a>.</p> |
||||
</li> |
||||
</ul> |
||||
<h4 id="3-no-need-wifibegin">3. No need WiFI.begin(...)<a class="headerlink" href="#3-no-need-wifibegin" title="Permanent link">¶</a></h4> |
||||
<p>AutoConnect performs <em>WiFi.begin</em> for establishing a connection with WLAN internally. There is no need for a general process to establish a connection with <em>WiFi.begin</em> in a sketch.</p> |
||||
<h4 id="4-alternate-esp8266webserverbegin">4. Alternate ESP8266WebServer::begin()<a class="headerlink" href="#4-alternate-esp8266webserverbegin" title="Permanent link">¶</a></h4> |
||||
<p><a href="../api/index.html#begin"><em>AutoConnect::begin</em></a> internally executes <em>ESP8266WebServer::begin</em> too and it starts DNS server to behave as a captive portal. So the sketch does not need to call <em>ESP8266WebServer::begin</em>.</p> |
||||
<div class="admonition info"> |
||||
<p class="admonition-title">Why DNS Server Starts</p> |
||||
<p>AutoConnect traps the detection of captive portals and directs them to the AutoConnect menu to achieve a connection with the WLAN interactively. In order to trap, it temporarily responds SoftAP address to all DNS queries. When the connection with the WLAN is successfully established, the DNS server will stop.</p> |
||||
</div> |
||||
<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> |
||||
<p>SSID and Password can also specify by <a href="../api.me#begin"><em>AutoConnect::begin</em></a>. ESP8266 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> |
||||
<h4 id="6-use-esp8266webserveron-to-handle-url">6. Use ESP8266WebServer::on to handle URL<a class="headerlink" href="#6-use-esp8266webserveron-to-handle-url" title="Permanent link">¶</a></h4> |
||||
<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>" function is the same as when using ESP8266WebServer natively.</p> |
||||
<h4 id="7-use-either-esp8266webserverhandleclient-or-autoconnecthandleclient">7. Use either ESP8266WebServer::handleClient() or AutoConnect::handleClient()<a class="headerlink" href="#7-use-either-esp8266webserverhandleclient-or-autoconnecthandleclient" title="Permanent link">¶</a></h4> |
||||
<p>Both classes member function name is the same: <em>handleClient</em>, but behavior is different. Using the AutoConnect embedded along with ESP8266WebServer::handleClient has limitations. Refer to the below section for details. </p> |
||||
<h3 id="esp8266webserver-hosted-or-parasitic"><i class="fa fa-caret-right"></i> ESP8266WebServer hosted or parasitic<a class="headerlink" href="#esp8266webserver-hosted-or-parasitic" title="Permanent link">¶</a></h3> |
||||
<p>The interoperable process with an ESP8266WebServer depends on the parameters of the <a href="../api/index.html#constructors">AutoConnect constructor</a>.</p> |
||||
<table> |
||||
<thead> |
||||
<tr> |
||||
<th>Declaration parameter</th> |
||||
<th>Use ESP8266WebServer::handleClient</th> |
||||
<th>Use AutoConnect::handleClient</th> |
||||
</tr> |
||||
</thead> |
||||
<tbody> |
||||
<tr> |
||||
<td>None</td> |
||||
<td>AutoConnect menu not available.<br>host() is needed.</td> |
||||
<td>AutoConnect menu available.<br>host() is needed.</td> |
||||
</tr> |
||||
<tr> |
||||
<td>Reference to ESP8266WebServer</td> |
||||
<td>AutoConnect menu not available.<br>host() not necessary.</td> |
||||
<td>AutoConnect menu available.<br>host() not necessary.</td> |
||||
</tr> |
||||
</tbody> |
||||
</table> |
||||
<ul> |
||||
<li> |
||||
<p><strong>By declaration for the AutoConnect variable with no parameter</strong>: The ESP8266WebServer instance is hosted by AutoConnect automatically then the sketches use <a href="../api/index.html#host"><em>AutoConnect::host</em></a> as API to get it after <a href="../api/index.html#begin"><em>AutoConnect::begin</em></a> performed.</p> |
||||
</li> |
||||
<li> |
||||
<p><strong>By declaration for the AutoConnect variable with the reference of ESP8266WebServer</strong>: AutoConnect will use it. The sketch can use it is too.</p> |
||||
</li> |
||||
<li> |
||||
<p><strong>In use ESP8266WebServer::handleClient()</strong>: AutoConnect menu can be dispatched but not works normally. It is necessary to call <a href="../api/index.html#void-handlerequest"><em>AutoConnect::handleRequest</em></a> after <em>ESP8255WebServer::handleClient</em> invoking.</p> |
||||
</li> |
||||
<li> |
||||
<p><strong>In use <a href="../api/index.html#void-handleclient">AutoConnect::handleClient()</a></strong>: The handleClient() process and the AutoConnect menu is available without calling <em>ESP8266WebServer::handleClient</em>.</p> |
||||
</li> |
||||
</ul> |
||||
<div class="admonition info"> |
||||
<p class="admonition-title">Why AutoConnect::handleRequest is needed when using ESP8266::handleClient</p> |
||||
<p>The AutoConnect menu function may affect WiFi connection state. It follows that the menu process must execute outside <em>ESP8266WebServer::handleClient</em>.<br /> |
||||
<a href="../api/index.html#void-handleclient"><em>AutoConnect::handleClient</em></a> is equivalent <em>ESP8266WebServer::handleClient</em> included <a href="../api/index.html#void-handlerequest"><em>AutoConnect::handleRequest</em></a>.</p> |
||||
</div> |
||||
<div class="footnote"> |
||||
<hr /> |
||||
<ol> |
||||
<li id="fn:1"> |
||||
<p>Each <em>VARIABLE</em> conforms to the actual declaration in the sketches. <a class="footnote-backref" href="#fnref:1" rev="footnote" title="Jump back to footnote 1 in the text">↩</a></p> |
||||
</li> |
||||
<li id="fn:2"> |
||||
<p>WiFi SSID and Password can be specified AutoConnect::begin() too. <a class="footnote-backref" href="#fnref:2" rev="footnote" title="Jump back to footnote 2 in the text">↩</a></p> |
||||
</li> |
||||
<li id="fn:3"> |
||||
<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" rev="footnote" title="Jump back to footnote 3 in the text">↩</a></p> |
||||
</li> |
||||
</ol> |
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</div> |
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## Simple usage |
||||
|
||||
### <i class="fa fa-edit"></i> Embed to the sketches |
||||
|
||||
How embed the AutoConnect to the sketches you have. Most simple approach to applying AutoConnect for the existing sketches, follow the below steps. |
||||
|
||||
<img src="../images/BeforeAfter.svg" /> |
||||
|
||||
<ul class="ulsty-edit" style="list-style:none;"> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
</ul> |
||||
|
||||
[^1]: |
||||
Each *VARIABLE* conforms to the actual declaration in the sketches. |
||||
|
||||
[^2]: |
||||
WiFi SSID and Password can be specified AutoConnect::begin() too. |
||||
|
||||
[^3]: |
||||
Replacement the **handleClient** method is not indispensable. AutoConnect can still connect with the captive portal as it is ESP8266WebServer::handleClient. But it can **not valid AutoConnect menu**. |
||||
|
||||
## Basic usage |
||||
|
||||
### <i class="fa fa-caret-right"></i> Basic logic sequence for the user sketches |
||||
|
||||
#### 1. A typical logic sequence |
||||
|
||||
!!! note "" |
||||
1. <strong>Include headers,</strong> `ESP8266WebServer.h` and `AutoConnect.h` |
||||
2. <strong>Declare ESP8266WebServer variable.</strong> |
||||
3. <strong>Declare AutoConnect variable.</strong> |
||||
4. <strong>Implements the URL handler *function()*.</strong> |
||||
5. <strong>setup()</strong> |
||||
5.1 <strong>Sets URL handler *function()* to ESP8266WebServer by</strong>`ESP8266WebServer::on`<strong>.</strong> |
||||
5.2 <strong>Starts </strong>`AutoConnect::begin()`<strong>.</strong> |
||||
5.3 <strong>Check connection status.</strong> |
||||
6. <strong>loop()</strong> |
||||
6.1 <strong>Invokes </strong>`AutoConnect::handleClient()`<strong>,<br>or invokes </strong>`ESP8266WebServer::handleClient()`<strong> then </strong>`AutoConnect::handleRequest()`<strong>.</strong> |
||||
6.2 <strong>Do the process for actual sketch.</strong> |
||||
|
||||
#### 2. Declare AutoConnect object |
||||
|
||||
[Two options](#esp8266webserver-hosted-or-parasitic) are available for [AutoConnect constructor](api.md#constructors). |
||||
|
||||
```arduino |
||||
AutoConnect VARIABLE(&ESP8266WebServer); |
||||
``` |
||||
or |
||||
|
||||
```arduino |
||||
AutoConnect VARIABLE; |
||||
``` |
||||
|
||||
- **Parameter with ESP8266WebServer variable:** An ESP8266WebServer object variable must be declared in the sketch. AutoConnect uses its variable for handling the [AutoConnect menu](menu.md). |
||||
|
||||
- **With no parameter:** The sketch does not declare ESP8266WebServer object. In this case, AutoConnect allocates an instance of the ESP8266WebServer internally and the logic sequence of the sketch is somewhat different as the above. To register a URL handler function by *ESP8266WebServer::on* should be performed after [*AutoConnect::begin*](api.md#begin). |
||||
|
||||
#### 3. No need WiFI.begin(...) |
||||
|
||||
AutoConnect performs *WiFi.begin* for establishing a connection with WLAN internally. There is no need for a general process to establish a connection with *WiFi.begin* in a sketch. |
||||
|
||||
#### 4. Alternate ESP8266WebServer::begin() |
||||
|
||||
[*AutoConnect::begin*](api.md#begin) internally executes *ESP8266WebServer::begin* too and it starts DNS server to behave as a captive portal. So the sketch does not need to call *ESP8266WebServer::begin*. |
||||
|
||||
!!! info "Why DNS Server Starts" |
||||
AutoConnect traps the detection of captive portals and directs them to the AutoConnect menu to achieve a connection with the WLAN interactively. In order to trap, it temporarily responds SoftAP address to all DNS queries. When the connection with the WLAN is successfully established, the DNS server will stop. |
||||
|
||||
#### 5. AutoConnect::begin with SSID and Password |
||||
|
||||
SSID and Password can also specify by [*AutoConnect::begin*](api.me#begin). ESP8266 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. |
||||
|
||||
#### 6. Use ESP8266WebServer::on to handle URL |
||||
|
||||
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 "*on::ESP8266WebServer*" function is the same as when using ESP8266WebServer natively. |
||||
|
||||
#### 7. Use either ESP8266WebServer::handleClient() or AutoConnect::handleClient() |
||||
|
||||
Both classes member function name is the same: *handleClient*, but behavior is different. Using the AutoConnect embedded along with ESP8266WebServer::handleClient has limitations. Refer to the below section for details. |
||||
|
||||
### <i class="fa fa-caret-right"></i> ESP8266WebServer hosted or parasitic |
||||
|
||||
The interoperable process with an ESP8266WebServer depends on the parameters of the [AutoConnect constructor](api.md#constructors). |
||||
|
||||
Declaration parameter | Use ESP8266WebServer::handleClient | Use AutoConnect::handleClient |
||||
----|----|--- |
||||
None | AutoConnect menu not available.<br>host() is needed. | AutoConnect menu available.<br>host() is needed. |
||||
Reference to ESP8266WebServer | AutoConnect menu not available.<br>host() not necessary. | AutoConnect menu available.<br>host() not necessary. |
||||
|
||||
- **By declaration for the AutoConnect variable with no parameter**: The ESP8266WebServer instance is hosted by AutoConnect automatically then the sketches use [*AutoConnect::host*](api.md#host) as API to get it after [*AutoConnect::begin*](api.md#begin) performed. |
||||
|
||||
- **By declaration for the AutoConnect variable with the reference of ESP8266WebServer**: AutoConnect will use it. The sketch can use it is too. |
||||
|
||||
- **In use ESP8266WebServer::handleClient()**: AutoConnect menu can be dispatched but not works normally. It is necessary to call [*AutoConnect::handleRequest*](api.md#void-handlerequest) after *ESP8255WebServer::handleClient* invoking. |
||||
|
||||
- **In use [AutoConnect::handleClient()](api.md#void-handleclient)**: The handleClient() process and the AutoConnect menu is available without calling *ESP8266WebServer::handleClient*. |
||||
|
||||
!!! info "Why AutoConnect::handleRequest is needed when using ESP8266::handleClient" |
||||
The AutoConnect menu function may affect WiFi connection state. It follows that the menu process must execute outside *ESP8266WebServer::handleClient*. |
||||
[*AutoConnect::handleClient*](api.md#void-handleclient) is equivalent *ESP8266WebServer::handleClient* included [*AutoConnect::handleRequest*](api.md#void-handlerequest). |
||||
|
||||
## Advanced usage |
||||
|
||||
### <i class="fa fa-caret-right"></i> 404 handler |
||||
@ -0,0 +1,106 @@ |
||||
## Simple usage |
||||
|
||||
### <i class="fa fa-edit"></i> Embed to the sketches |
||||
|
||||
How embed the AutoConnect to the sketches you have. Most simple approach to applying AutoConnect for the existing sketches, follow the below steps. |
||||
|
||||
<img src="../images/BeforeAfter.svg" /> |
||||
|
||||
<ul class="ulsty-edit" style="list-style:none;"> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
<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> |
||||
</ul> |
||||
|
||||
[^1]: |
||||
Each *VARIABLE* conforms to the actual declaration in the sketches. |
||||
|
||||
[^2]: |
||||
WiFi SSID and Password can be specified AutoConnect::begin() too. |
||||
|
||||
[^3]: |
||||
Replacement the **handleClient** method is not indispensable. AutoConnect can still connect with the captive portal as it is ESP8266WebServer::handleClient. But it can **not valid AutoConnect menu**. |
||||
|
||||
## Basic usage |
||||
|
||||
### <i class="fa fa-caret-right"></i> Basic logic sequence for the user sketches |
||||
|
||||
#### 1. A typical logic sequence |
||||
|
||||
!!! note "" |
||||
1. <strong>Include headers,</strong> `ESP8266WebServer.h` and `AutoConnect.h` |
||||
2. <strong>Declare ESP8266WebServer variable.</strong> |
||||
3. <strong>Declare AutoConnect variable.</strong> |
||||
4. <strong>Implements the URL handler *function()*.</strong> |
||||
5. <strong>setup()</strong> |
||||
5.1 <strong>Sets URL handler *function()* to ESP8266WebServer by</strong>`ESP8266WebServer::on`<strong>.</strong> |
||||
5.2 <strong>Starts </strong>`AutoConnect::begin()`<strong>.</strong> |
||||
5.3 <strong>Check connection status.</strong> |
||||
6. <strong>loop()</strong> |
||||
6.1 <strong>Invokes </strong>`AutoConnect::handleClient()`<strong>,<br>or invokes </strong>`ESP8266WebServer::handleClient()`<strong> then </strong>`AutoConnect::handleRequest()`<strong>.</strong> |
||||
6.2 <strong>Do the process for actual sketch.</strong> |
||||
|
||||
#### 2. Declare AutoConnect object |
||||
|
||||
[Two options](#esp8266webserver-hosted-or-parasitic) are available for [AutoConnect constructor](api.md#constructors). |
||||
|
||||
```arduino |
||||
AutoConnect VARIABLE(&ESP8266WebServer); |
||||
``` |
||||
or |
||||
|
||||
```arduino |
||||
AutoConnect VARIABLE; |
||||
``` |
||||
|
||||
- **Parameter with ESP8266WebServer variable:** An ESP8266WebServer object variable must be declared in the sketch. AutoConnect uses its variable for handling the [AutoConnect menu](menu.md). |
||||
|
||||
- **With no parameter:** The sketch does not declare ESP8266WebServer object. In this case, AutoConnect allocates an instance of the ESP8266WebServer internally and the logic sequence of the sketch is somewhat different as the above. To register a URL handler function by *ESP8266WebServer::on* should be performed after [*AutoConnect::begin*](api.md#begin). |
||||
|
||||
#### 3. No need WiFI.begin(...) |
||||
|
||||
AutoConnect performs *WiFi.begin* for establishing a connection with WLAN internally. There is no need for a general process to establish a connection with *WiFi.begin* in a sketch. |
||||
|
||||
#### 4. Alternate ESP8266WebServer::begin() |
||||
|
||||
[*AutoConnect::begin*](api.md#begin) internally executes *ESP8266WebServer::begin* too and it starts DNS server to behave as a captive portal. So the sketch does not need to call *ESP8266WebServer::begin*. |
||||
|
||||
!!! info "Why DNS Server Starts" |
||||
AutoConnect traps the detection of captive portals and directs them to the AutoConnect menu to achieve a connection with the WLAN interactively. In order to trap, it temporarily responds SoftAP address to all DNS queries. When the connection with the WLAN is successfully established, the DNS server will stop. |
||||
|
||||
#### 5. AutoConnect::begin with SSID and Password |
||||
|
||||
SSID and Password can also specify by [*AutoConnect::begin*](api.me#begin). ESP8266 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. |
||||
|
||||
#### 6. Use ESP8266WebServer::on to handle URL |
||||
|
||||
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 "*on::ESP8266WebServer*" function is the same as when using ESP8266WebServer natively. |
||||
|
||||
#### 7. Use either ESP8266WebServer::handleClient() or AutoConnect::handleClient() |
||||
|
||||
Both classes member function name is the same: *handleClient*, but behavior is different. Using the AutoConnect embedded along with ESP8266WebServer::handleClient has limitations. Refer to the below section for details. |
||||
|
||||
### <i class="fa fa-caret-right"></i> ESP8266WebServer hosted or parasitic |
||||
|
||||
The interoperable process with an ESP8266WebServer depends on the parameters of the [AutoConnect constructor](api.md#constructors). |
||||
|
||||
Declaration parameter | Use ESP8266WebServer::handleClient | Use AutoConnect::handleClient |
||||
----|----|--- |
||||
None | AutoConnect menu not available.<br>host() is needed. | AutoConnect menu available.<br>host() is needed. |
||||
Reference to ESP8266WebServer | AutoConnect menu not available.<br>host() not necessary. | AutoConnect menu available.<br>host() not necessary. |
||||
|
||||
- **By declaration for the AutoConnect variable with no parameter**: The ESP8266WebServer instance is hosted by AutoConnect automatically then the sketches use [*AutoConnect::host*](api.md#host) as API to get it after [*AutoConnect::begin*](api.md#begin) performed. |
||||
|
||||
- **By declaration for the AutoConnect variable with the reference of ESP8266WebServer**: AutoConnect will use it. The sketch can use it is too. |
||||
|
||||
- **In use ESP8266WebServer::handleClient()**: AutoConnect menu can be dispatched but not works normally. It is necessary to call [*AutoConnect::handleRequest*](api.md#void-handlerequest) after *ESP8255WebServer::handleClient* invoking. |
||||
|
||||
- **In use [AutoConnect::handleClient()](api.md#void-handleclient)**: The handleClient() process and the AutoConnect menu is available without calling *ESP8266WebServer::handleClient*. |
||||
|
||||
!!! info "Why AutoConnect::handleRequest is needed when using ESP8266::handleClient" |
||||
The AutoConnect menu function may affect WiFi connection state. It follows that the menu process must execute outside *ESP8266WebServer::handleClient*. |
||||
[*AutoConnect::handleClient*](api.md#void-handleclient) is equivalent *ESP8266WebServer::handleClient* included [*AutoConnect::handleRequest*](api.md#void-handlerequest). |
||||
|
||||
Loading…
Reference in new issue