signalk-server
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An implementation of a [Signal K](http://signalk.org) server for boats.
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<ol class="chapter"><li class="chapter-item expanded affix "><a href="index.html" class="active">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"><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>
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<h1 class="menu-title">Signal K Server Documentation</h1>
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<h2 id="introduction"><a class="header" href="#introduction">Introduction</a></h2>
<p>Signal K Server is software designed to be deployed on a vessel to act as a central hub which:</p>
<ol>
<li>Collects data from devices and sensors on board</li>
<li>Aggregates and exposes it using the <em><a href="https://signalk.org/specification/latest/">Signal K Data Standard</a></em></li>
<li>Exposes the collected data via REST APIs and websocket protocols over a standard WiFi, LAN or Internet connection.</li>
</ol>
<p>Through implementation of the <em><a href="https://signalk.org/specification/latest/">Signal K Data Standard</a></em>, it enables data exchange between NMEA0183, NMEA2000 and other marine protocols facilitating two way communication between the various onboard systems. In addition it can also act as data hub for additional sensors ensuring their data appears within the single data model. <em>(Visit the <a href="https://github.com/SignalK/SensESP">Signal K SensESP project</a> for <a href="https://en.wikipedia.org/wiki/ESP32">ESP32</a> for details.).</em></p>
<p>Data is made available to client applications / connections in JSON format making it widely accessible to Apps on phone / tablet devices and web applications.</p>
<p>Signal K Server is also extensible, providing a plugin framework which allows developers to create solutions that integrate and extend its capabilities. These solutions can be published to <strong>npmjs</strong> and installed via the <strong>App Store</strong> in the server's web-based user interface.</p>
<p><img src="img/server_only.svg" alt="Server only setup" /></p>
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