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Alex B.
2025-07-05 18:35:56 -04:00
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commit a7049daa83
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ESP-IDF_Robot/tutorial/docs/build/html/receiver.html vendored
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@@ -35,6 +35,53 @@
<section id="receiver">
<h1>RECEIVER<a class="headerlink" href="#receiver" title="Link to this heading"></a></h1>
<section id="configuration-variables">
<h2>Configuration Variables<a class="headerlink" href="#configuration-variables" title="Link to this heading"></a></h2>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">uint8_t</span><span class="w"> </span><span class="n">transmitter_mac</span><span class="p">[</span><span class="n">ESP_NOW_ETH_ALEN</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="mh">0x9C</span><span class="p">,</span><span class="w"> </span><span class="mh">0x9E</span><span class="p">,</span><span class="w"> </span><span class="mh">0x6E</span><span class="p">,</span><span class="w"> </span><span class="mh">0x14</span><span class="p">,</span><span class="w"> </span><span class="mh">0xB5</span><span class="p">,</span><span class="w"> </span><span class="mh">0x54</span><span class="p">};</span>
</pre></div>
</div>
</section>
<section id="receiving-data">
<h2>Receiving Data<a class="headerlink" href="#receiving-data" title="Link to this heading"></a></h2>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="kt">void</span><span class="w"> </span><span class="nf">onDataReceived</span><span class="w"> </span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="kt">uint8_t</span><span class="w"> </span><span class="o">*</span><span class="n">mac_addr</span><span class="p">,</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="kt">uint8_t</span><span class="w"> </span><span class="o">*</span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="kt">uint8_t</span><span class="w"> </span><span class="n">data_len</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="n">ESP_LOGI</span><span class="p">(</span><span class="n">TAG</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;Data received from: %02x:%02x:%02x:%02x:%02x:%02x, len=%d&quot;</span><span class="p">,</span><span class="w"> </span><span class="n">mac_addr</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="w"> </span><span class="n">mac_addr</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span><span class="w"> </span><span class="n">mac_addr</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span><span class="w"> </span><span class="n">mac_addr</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span><span class="w"> </span><span class="n">mac_addr</span><span class="p">[</span><span class="mi">4</span><span class="p">],</span><span class="w"> </span><span class="n">mac_addr</span><span class="p">[</span><span class="mi">5</span><span class="p">],</span><span class="w"> </span><span class="n">data_len</span><span class="p">);</span>
<span class="w"> </span><span class="n">memcpy</span><span class="p">(</span><span class="o">&amp;</span><span class="n">buf</span><span class="p">,</span><span class="w"> </span><span class="n">data</span><span class="p">,</span><span class="w"> </span><span class="k">sizeof</span><span class="p">(</span><span class="n">buf</span><span class="p">));</span>
<span class="p">}</span>
</pre></div>
</div>
</section>
<section id="main-function">
<h2>Main Function<a class="headerlink" href="#main-function" title="Link to this heading"></a></h2>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">&lt;string.h&gt;</span>
<span class="cp">#include</span><span class="w"> </span><span class="cpf">&quot;freertos/FreeRTOS.h&quot;</span>
<span class="cp">#include</span><span class="w"> </span><span class="cpf">&quot;nvs_flash.h&quot;</span>
<span class="cp">#include</span><span class="w"> </span><span class="cpf">&quot;esp_err.h&quot;</span>
<span class="kt">void</span><span class="w"> </span><span class="nf">app_main</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="c1">// Initialize NVS</span>
<span class="w"> </span><span class="n">esp_err_t</span><span class="w"> </span><span class="n">ret</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nvs_flash_init</span><span class="p">();</span>
<span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">ret</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">ESP_ERR_NVS_NO_FREE_PAGES</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">ret</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">ESP_ERR_NVS_NEW_VERSION_FOUND</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="n">ESP_ERROR_CHECK</span><span class="p">(</span><span class="w"> </span><span class="n">nvs_flash_erase</span><span class="p">()</span><span class="w"> </span><span class="p">);</span>
<span class="w"> </span><span class="n">ret</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nvs_flash_init</span><span class="p">();</span>
<span class="w"> </span><span class="p">}</span>
<span class="w"> </span><span class="n">ESP_ERROR_CHECK</span><span class="p">(</span><span class="w"> </span><span class="n">ret</span><span class="w"> </span><span class="p">);</span>
<span class="w"> </span><span class="n">wifi_init</span><span class="p">();</span>
<span class="w"> </span><span class="n">ESP_ERROR_CHECK</span><span class="p">(</span><span class="n">esp_now_init</span><span class="p">());</span>
<span class="w"> </span><span class="n">esp_now_peer_info_t</span><span class="w"> </span><span class="n">transmitterInfo</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="mi">0</span><span class="p">};</span>
<span class="w"> </span><span class="n">memcpy</span><span class="p">(</span><span class="n">transmitterInfo</span><span class="p">.</span><span class="n">peer_addr</span><span class="p">,</span><span class="w"> </span><span class="n">transmitter_mac</span><span class="p">,</span><span class="w"> </span><span class="n">ESP_NOW_ETH_ALEN</span><span class="p">);</span>
<span class="w"> </span><span class="n">transmitterInfo</span><span class="p">.</span><span class="n">channel</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// Current WiFi channel</span>
<span class="w"> </span><span class="n">transmitterInfo</span><span class="p">.</span><span class="n">ifidx</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">ESP_IF_WIFI_STA</span><span class="p">;</span>
<span class="w"> </span><span class="n">transmitterInfo</span><span class="p">.</span><span class="n">encrypt</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">false</span><span class="p">;</span>
<span class="w"> </span><span class="n">ESP_ERROR_CHECK</span><span class="p">(</span><span class="n">esp_now_add_peer</span><span class="p">(</span><span class="o">&amp;</span><span class="n">transmitterInfo</span><span class="p">));</span>
<span class="w"> </span><span class="n">ESP_ERROR_CHECK</span><span class="p">(</span><span class="n">esp_now_register_recv_cb</span><span class="p">((</span><span class="kt">void</span><span class="o">*</span><span class="p">)</span><span class="n">onDataReceived</span><span class="p">));</span>
<span class="w"> </span><span class="n">system_led_init</span><span class="p">();</span>
<span class="p">}</span>
</pre></div>
</div>
</section>
</section>
@@ -66,9 +113,14 @@
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="intro.html">INTRODUCTION</a></li>
<li class="toctree-l1"><a class="reference internal" href="overview.html">HOW DOES IT WORK?</a></li>
<li class="toctree-l1"><a class="reference internal" href="data.html">DATA</a></li>
<li class="toctree-l1"><a class="reference internal" href="data.html">DATA STRUCT</a></li>
<li class="toctree-l1"><a class="reference internal" href="transmitter.html">TRANSMITTER</a></li>
<li class="toctree-l1 current"><a class="current reference internal" href="#">RECEIVER</a></li>
<li class="toctree-l1 current"><a class="current reference internal" href="#">RECEIVER</a><ul>
<li class="toctree-l2"><a class="reference internal" href="#configuration-variables">Configuration Variables</a></li>
<li class="toctree-l2"><a class="reference internal" href="#receiving-data">Receiving Data</a></li>
<li class="toctree-l2"><a class="reference internal" href="#main-function">Main Function</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="progress.html">WORK-IN-PROGRESS WALK THROUGH</a></li>
</ul>