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signalk-server

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An implementation of a [Signal K](http://signalk.org) server for boats.

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<!DOCTYPE HTML> <html lang="en" class="sidebar-visible no-js light"> <head> <!-- Book generated using mdBook --> <meta charset="UTF-8"> <title>Sponsor - Signal K Server Documentation</title> <!-- Custom HTML head --> <meta name="description" content="A Guide for users and developers."> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta name="theme-color" content="#ffffff" /> <link rel="shortcut icon" href="../favicon.png"> <link rel="stylesheet" href="../css/variables.css"> <link rel="stylesheet" href="../css/general.css"> <link rel="stylesheet" href="../css/chrome.css"> <link rel="stylesheet" href="../css/print.css" media="print"> <!-- Fonts --> <link rel="stylesheet" href="../FontAwesome/css/font-awesome.css"> <link rel="stylesheet" href="../fonts/fonts.css"> <!-- Highlight.js Stylesheets --> <link rel="stylesheet" href="../highlight.css"> <link rel="stylesheet" href="../tomorrow-night.css"> <link rel="stylesheet" href="../ayu-highlight.css"> <!-- Custom theme stylesheets --> </head> <body> <div id="body-container"> <!-- Provide site root to javascript --> <script> var path_to_root = "../"; var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? 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before it is displayed --> <script> var html = document.querySelector('html'); var sidebar = null; var sidebar_toggle = document.getElementById("sidebar-toggle-anchor"); if (document.body.clientWidth >= 1080) { try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { } sidebar = sidebar || 'visible'; } else { sidebar = 'hidden'; } sidebar_toggle.checked = sidebar === 'visible'; html.classList.remove('sidebar-visible'); html.classList.add("sidebar-" + sidebar); </script> <nav id="sidebar" class="sidebar" aria-label="Table of contents"> <div class="sidebar-scrollbox"> <a href="/" style="width:155px;height:30px;background-image:url(/signal-k-logo-image-text.svg);display:inline-block;background-repeat:no-repeat;background-position:center center;background-size:150px auto;"></a> <ol class="chapter"><li class="chapter-item expanded affix "><a href="../index.html">Introduction</a></li><li class="chapter-item expanded affix "><li class="part-title">Getting Started</li><li class="chapter-item expanded "><a href="../installation/install.html"><strong aria-hidden="true">1.</strong> Installation</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../installation/raspberry_pi_installation.html"><strong aria-hidden="true">1.1.</strong> Installing on Raspberry Pi</a></li><li class="chapter-item expanded "><a href="../installation/updating.html"><strong aria-hidden="true">1.2.</strong> Updating your installation</a></li><li class="chapter-item expanded "><a href="../installation/command_line.html"><strong aria-hidden="true">1.3.</strong> Runtime environment & options</a></li></ol></li><li class="chapter-item expanded "><a href="../security.html"><strong aria-hidden="true">2.</strong> Security</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../setup/generating_tokens.html"><strong aria-hidden="true">2.1.</strong> Generating tokens</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">Setup</li><li class="chapter-item expanded "><a href="../setup/configuration.html"><strong aria-hidden="true">3.</strong> Configuration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../setup/seatalk/seatalk.html"><strong aria-hidden="true">3.1.</strong> Seatalk Connections</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">Feature How Tos</li><li class="chapter-item expanded "><a href="../features/anchoralarm/anchoralarm.html"><strong aria-hidden="true">4.</strong> Anchor Alarm</a></li><li class="chapter-item expanded "><a href="../features/navdataserver/navdataserver.html"><strong aria-hidden="true">5.</strong> NMEA0183 Server</a></li><li class="chapter-item expanded "><a href="../features/datalogging/datalogging.html"><strong aria-hidden="true">6.</strong> Data Logging</a></li><li class="chapter-item expanded affix "><li class="part-title">Support</li><li class="chapter-item expanded "><a href="../support/help.html"><strong aria-hidden="true">7.</strong> Help & Support</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../support/faq.html"><strong aria-hidden="true">7.1.</strong> FAQs</a></li></ol></li><li class="chapter-item expanded "><a href="../support/sponsor.html" class="active"><strong aria-hidden="true">8.</strong> Sponsor</a></li><li class="chapter-item expanded affix "><li class="part-title">Develop</li><li class="chapter-item expanded "><a href="../develop/developer_notes.html"><strong aria-hidden="true">9.</strong> Notes for Developers</a></li><li class="chapter-item expanded "><a href="../whats_new.html"><strong aria-hidden="true">10.</strong> What's New in V2</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../breaking_changes.html"><strong aria-hidden="true">10.1.</strong> Changes & Deprecations</a></li></ol></li><li class="chapter-item expanded "><a href="../develop/webapps.html"><strong aria-hidden="true">11.</strong> WebApps</a></li><li class="chapter-item expanded "><a href="../develop/plugins/server_plugin.html"><strong aria-hidden="true">12.</strong> Plugins</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../develop/plugins/deltas.html"><strong aria-hidden="true">12.1.</strong> Processing Data</a></li><li class="chapter-item expanded "><a href="../develop/plugins/server_plugin_api.html"><strong aria-hidden="true">12.2.</strong> Server API</a></li><li class="chapter-item expanded "><a href="../develop/plugins/resource_provider_plugins.html"><strong aria-hidden="true">12.3.</strong> Resource Providers</a></li><li class="chapter-item expanded "><a href="../develop/rest-api/course_calculations.html"><strong aria-hidden="true">12.4.</strong> Course Providers</a></li><li class="chapter-item expanded "><a href="../develop/plugins/autopilot_provider_plugins.html"><strong aria-hidden="true">12.5.</strong> Autopilot Providers</a></li></ol></li><li class="chapter-item expanded "><a href="../develop/plugins/publishing.html"><strong aria-hidden="true">13.</strong> Publishing to the AppStore</a></li><li class="chapter-item expanded "><a href="../develop/rest-api/open_api.html"><strong aria-hidden="true">14.</strong> REST APIs</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../develop/rest-api/course_api.html"><strong aria-hidden="true">14.1.</strong> Course API</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../develop/rest-api/course_calculations.html"><strong aria-hidden="true">14.1.1.</strong> Course Calculations</a></li></ol></li><li class="chapter-item expanded "><a href="../develop/rest-api/resources_api.html"><strong aria-hidden="true">14.2.</strong> Resources API</a></li><li class="chapter-item expanded "><a href="../develop/rest-api/notifications_api.html"><strong aria-hidden="true">14.3.</strong> Notifications API</a></li><li class="chapter-item expanded "><a href="../develop/rest-api/autopilot_api.html"><strong aria-hidden="true">14.4.</strong> Autopilot API</a></li><li class="chapter-item expanded "><a href="../develop/rest-api/anchor_api.html"><strong aria-hidden="true">14.5.</strong> Anchor API</a></li></ol></li><li class="chapter-item expanded "><a href="../develop/contributing.html"><strong aria-hidden="true">15.</strong> Contribute</a></li></ol> </div> <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div> </nav> <!-- Track and set sidebar scroll position --> <script> var sidebarScrollbox = document.querySelector('#sidebar .sidebar-scrollbox'); sidebarScrollbox.addEventListener('click', function(e) { if (e.target.tagName === 'A') { sessionStorage.setItem('sidebar-scroll', sidebarScrollbox.scrollTop); } }, { passive: true }); var sidebarScrollTop = sessionStorage.getItem('sidebar-scroll'); sessionStorage.removeItem('sidebar-scroll'); if (sidebarScrollTop) { // preserve sidebar scroll 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(Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar"> <i class="fa fa-search"></i> </button> </div> <h1 class="menu-title">Signal K Server Documentation</h1> <div class="right-buttons"> <a href="../print.html" title="Print this book" aria-label="Print this book"> <i id="print-button" class="fa fa-print"></i> </a> <a href="https://github.com/SignalK/signalk-server/tree/master/docs/src" title="Suggest an edit" aria-label="Suggest an edit"> <i id="git-edit-button" class="fa fa-edit"></i> </a> </div> </div> <div id="search-wrapper" class="hidden"> <form id="searchbar-outer" class="searchbar-outer"> <input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header"> </form> <div id="searchresults-outer" class="searchresults-outer hidden"> <div id="searchresults-header" class="searchresults-header"></div> <ul id="searchresults"> </ul> </div> </div> <!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM --> <script> document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible'); document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible'); Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) { link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1); }); </script> <div id="content" class="content"> <main> <h1 id="sponsor-signal-k"><a class="header" href="#sponsor-signal-k">Sponsor Signal K</a></h1> <p>Signal K is all about creating open and interoperable marine data systems. We have created an open specification for representing marine related data, APIs and interfacing to use the data and free software that you can download and use.</p> <p>If you would like to contribute and help fund continued development visit <a href="https://opencollective.com/signalk">Signal K on Open Collective</a>.</p> </main> <nav class="nav-wrapper" aria-label="Page navigation"> <!-- Mobile navigation buttons --> <a rel="prev" href="../support/faq.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left"> <i class="fa fa-angle-left"></i> </a> <a rel="next" href="../develop/developer_notes.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right"> <i class="fa fa-angle-right"></i> </a> <div style="clear: both"></div> </nav> </div> </div> <nav class="nav-wide-wrapper" aria-label="Page navigation"> <a rel="prev" href="../support/faq.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left"> <i class="fa fa-angle-left"></i> </a> <a rel="next" href="../develop/developer_notes.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right"> <i class="fa fa-angle-right"></i> </a> </nav> </div> <script> window.playground_copyable = true; </script> <script src="../elasticlunr.min.js"></script> <script src="../mark.min.js"></script> <script src="../searcher.js"></script> <script src="../clipboard.min.js"></script> <script src="../highlight.js"></script> <script src="../book.js"></script> <!-- Custom JS scripts --> </div> </body> </html>