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<li class="toctree-l1 current current-page"><a class="current reference internal" href="#">Compiling the software</a></li>
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<div class="section" id="compiling-the-software">
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<span id="id1"></span><h1>Compiling the software<a class="headerlink" href="#compiling-the-software" title="Permalink to this headline">¶</a></h1>
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<div class="section" id="tools">
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<h2>Tools<a class="headerlink" href="#tools" title="Permalink to this headline">¶</a></h2>
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<p>I use the following tools in order to build and manage the software:</p>
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<ul class="simple">
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<li><p>Visual Studio Code</p></li>
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<li><p>PlatformIO</p></li>
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<li><p>Git for Windows</p></li>
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<li><p>VSCode plugin: Minify (used to minimise the html files)</p></li>
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</ul>
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</div>
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<div class="section" id="code-formatting">
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<h2>Code Formatting<a class="headerlink" href="#code-formatting" title="Permalink to this headline">¶</a></h2>
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<p>I use pre-commit and their cpp style checks to validate the code. Plugin defintions are found in <strong>.pre-commit-config.yaml</strong></p>
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<p><a class="reference external" href="https://www.pre-commit.com">Pre-Commit</a></p>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>There is not yet any automatic checks since this does not work on Windows. It works if running under WSL2 with Ubuntu.</p>
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</div>
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</div>
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<div class="section" id="targets">
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<h2>Targets<a class="headerlink" href="#targets" title="Permalink to this headline">¶</a></h2>
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<p>In the platformio config there are 3 targets defined</p>
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<ul class="simple">
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<li><p>gravity-debug; Maximum logging for trouble shooting, deep sleep is disabled.</p></li>
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<li><p>gravity-release; Standard release</p></li>
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<li><p>gravity32-release: Version for ESP32 mini.</p></li>
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<li><p>gravity32c3-release: Version for ESP32 C3 mini v2.1+.</p></li>
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<li><p>gravity32c3v1-release: Version for ESP32 C3 mini v1.0.</p></li>
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<li><p>gravity32s2-release: Version for ESP32 S2 mini.</p></li>
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<li><p>gravity32lite-release: Version for ESP32 lite (Floaty hardware).</p></li>
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</ul>
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<div class="admonition warning">
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<p class="admonition-title">Warning</p>
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<p>The debug target can be unstable and crash the device under certain circumstanses. Excessive logging to the serial port can cause corruption and crashes.
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So only enable enough debugging to troubleshoot your changes.</p>
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</div>
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</div>
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<div class="section" id="serial-debugging-on-battery">
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<h2>Serial debugging on battery<a class="headerlink" href="#serial-debugging-on-battery" title="Permalink to this headline">¶</a></h2>
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<a class="reference internal image-reference" href="_images/serial.png"><img alt="Serial output" src="_images/serial.png" style="width: 600px;"/></a>
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<p>On the ESP32 builds the serial output can be written to UART0 which is connected to the RX/TX pins on the chip. This way the serial output can be viewed
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without a connection to the USB port, convinient when running the device on battery power. In order to get this to work you need to compile the sofware
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with the option <strong>DUSE_SERIAL_PINS</strong> and attach as USB to TTL cable to the correct pins.</p>
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<p>You connect the USB to TTL cable that you connect the TX, RX and GND pins. <strong>Dont connect the power pin</strong> if you are powering the device from USB or Battery.</p>
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<a class="reference internal image-reference" href="_images/usb-ttl.jpg"><img alt="USB to TTL cable" src="_images/usb-ttl.jpg" style="width: 300px;"/></a>
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<a class="reference internal image-reference" href="_images/serial_esp32c3.jpg"><img alt="Serial output ESP32c3" src="_images/serial_esp32c3.jpg" style="width: 300px;"/></a>
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</div>
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<div class="section" id="source-structure">
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<h2>Source structure<a class="headerlink" href="#source-structure" title="Permalink to this headline">¶</a></h2>
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<div class="table-wrapper"><table class="colwidths-given docutils align-default" id="id2">
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<caption><span class="caption-text">Directory structure</span><a class="headerlink" href="#id2" title="Permalink to this table">¶</a></caption>
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<colgroup>
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<col style="width: 40%"/>
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<col style="width: 60%"/>
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</colgroup>
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<thead>
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<tr class="row-odd"><th class="head"><p>path</p></th>
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<th class="head"><p>content</p></th>
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</tr>
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</thead>
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<tbody>
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<tr class="row-even"><td><p>/bin</p></td>
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<td><p>Contains compiled binaries</p></td>
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</tr>
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<tr class="row-odd"><td><p>/data</p></td>
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<td><p>Directory for flashing device filesystem</p></td>
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</tr>
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<tr class="row-even"><td><p>/doc</p></td>
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<td><p>Various external documents used as input</p></td>
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</tr>
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<tr class="row-odd"><td><p>/html</p></td>
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<td><p>Source for html files</p></td>
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</tr>
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<tr class="row-even"><td><p>/img</p></td>
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<td><p>Images uses in README.md</p></td>
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</tr>
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<tr class="row-odd"><td><p>/lib</p></td>
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<td><p>External libraries used when compiling</p></td>
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</tr>
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<tr class="row-even"><td><p>/script</p></td>
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<td><p>Scripts used in build process</p></td>
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</tr>
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<tr class="row-odd"><td><p>/src</p></td>
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<td><p>Source code for software</p></td>
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</tr>
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<tr class="row-even"><td><p>/src_docs</p></td>
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<td><p>Source code for documentation</p></td>
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</tr>
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<tr class="row-odd"><td><p>/test</p></td>
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<td><p>Test data for developing html files</p></td>
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</tr>
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</tbody>
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</table></div>
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</div>
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<div class="section" id="options">
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<h2>Options<a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2>
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<p>This is a list of C++ defines that is used to enable/disable functions in the code.</p>
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<div class="table-wrapper"><table class="colwidths-given docutils align-default" id="id3">
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<caption><span class="caption-text">Defines</span><a class="headerlink" href="#id3" title="Permalink to this table">¶</a></caption>
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<colgroup>
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<col style="width: 40%"/>
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<col style="width: 60%"/>
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</colgroup>
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<thead>
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<tr class="row-odd"><th class="head"><p>define</p></th>
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<th class="head"><p>description</p></th>
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</tr>
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</thead>
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<tbody>
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<tr class="row-even"><td><p>ACTIVATE_OTA</p></td>
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<td><p>Enables the OTA functionallity in the code</p></td>
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</tr>
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<tr class="row-odd"><td><p>SKIP_SLEEPMODE</p></td>
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<td><p>The device never goes into sleep mode, useful when developing.</p></td>
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</tr>
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<tr class="row-even"><td><p>xxx_DISABLE_LOGGING</p></td>
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<td><p>Done include verbose logging in the corresponding class. Excessive logging may crash device.</p></td>
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</tr>
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<tr class="row-odd"><td><p>USE_LITTLEFS</p></td>
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<td><p>Use the new filesystem in Ardurino</p></td>
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</tr>
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<tr class="row-even"><td><p>USER_SSID</p></td>
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<td><p>If defined the device will always use this SSID</p></td>
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</tr>
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<tr class="row-odd"><td><p>USER_SSID_PWD</p></td>
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<td><p>Password to the SSID</p></td>
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</tr>
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<tr class="row-even"><td><p>CFG_APPVER</p></td>
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<td><p>Defines the version of the compiled software</p></td>
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</tr>
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<tr class="row-odd"><td><p>USE_SERIAL_PINS</p></td>
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<td><p>Will send the serial console to the TX/RX pins on an ESP32 target so that debugging can be done when on battery</p></td>
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</tr>
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<tr class="row-even"><td><p>REDUCE_WIFI_POWER</p></td>
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<td><p>Will reduce wifi power to support the ESP32C3 v1.0 which has a bad antenna</p></td>
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</tr>
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<tr class="row-odd"><td><p>FLOATY</p></td>
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<td><p>Build for the ESP32lite FLOATY hardware option (no DS18B20 and no battery monitor)</p></td>
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</tr>
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</tbody>
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</table></div>
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</div>
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<a class="next-page" href="contributing.html">
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<div class="context">
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<span>Next</span>
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<div class="title">Contributing</div>
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<div class="title">Data Formats</div>
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<div class="related-information">
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Copyright © 2021-2023, Magnus Persson |
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Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> and <a class="muted-link" href="https://pradyunsg.me">@pradyunsg</a>'s
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<a href="https://github.com/pradyunsg/furo">Furo theme</a>.
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<span class="toc-title">
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Contents
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<div class="toc-tree-container">
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<div class="toc-tree">
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<ul>
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<li><a class="reference internal" href="#">Compiling the software</a><ul>
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<li><a class="reference internal" href="#tools">Tools</a></li>
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<li><a class="reference internal" href="#code-formatting">Code Formatting</a></li>
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<li><a class="reference internal" href="#targets">Targets</a></li>
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<li><a class="reference internal" href="#serial-debugging-on-battery">Serial debugging on battery</a></li>
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<li><a class="reference internal" href="#source-structure">Source structure</a></li>
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<li><a class="reference internal" href="#options">Options</a></li>
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