<!DOCTYPE html> <html class="writer-html5" lang="en" > <head> <meta charset="utf-8" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Tallies Overview — Oostendam Tallies documentation</title> <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> <link rel="stylesheet" href="_static/css/theme.css" type="text/css" /> <link rel="stylesheet" href="_static/drawio.css" type="text/css" /> <!--[if lt IE 9]> <script src="_static/js/html5shiv.min.js"></script> <![endif]--> <script data-url_root="./" id="documentation_options" src="_static/documentation_options.js"></script> <script src="_static/jquery.js"></script> <script src="_static/underscore.js"></script> <script src="_static/_sphinx_javascript_frameworks_compat.js"></script> <script src="_static/doctools.js"></script> <script src="_static/sphinx_highlight.js"></script> <script src="_static/js/theme.js"></script> <link rel="index" title="Index" href="genindex.html" /> <link rel="search" title="Search" href="search.html" /> <link rel="prev" title="Tallies in Oostendam" href="index.html" /> </head> <body class="wy-body-for-nav"> <div class="wy-grid-for-nav"> <nav data-toggle="wy-nav-shift" class="wy-nav-side"> <div class="wy-side-scroll"> <div class="wy-side-nav-search" > <a href="index.html" class="icon icon-home"> Oostendam Tallies </a> <div role="search"> <form id="rtd-search-form" class="wy-form" action="search.html" method="get"> <input type="text" name="q" placeholder="Search docs" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> </div><div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu"> <p class="caption" role="heading"><span class="caption-text">Contents:</span></p> <ul class="current"> <li class="toctree-l1 current"><a class="current reference internal" href="#">Tallies Overview</a><ul> <li class="toctree-l2"><a class="reference internal" href="#hardware">Hardware</a></li> <li class="toctree-l2"><a class="reference internal" href="#software">Software</a></li> </ul> </li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"><nav class="wy-nav-top" aria-label="Mobile navigation menu" > <i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="index.html">Oostendam Tallies</a> </nav> <div class="wy-nav-content"> <div class="rst-content"> <div role="navigation" aria-label="Page navigation"> <ul class="wy-breadcrumbs"> <li><a href="index.html" class="icon icon-home"></a></li> <li class="breadcrumb-item active">Tallies Overview</li> <li class="wy-breadcrumbs-aside"> <a href="_sources/overview.rst.txt" rel="nofollow"> View page source</a> </li> </ul> <hr/> </div> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <section id="tallies-overview"> <h1>Tallies Overview<a class="headerlink" href="#tallies-overview" title="Permalink to this heading"></a></h1> <p>This page gives a short overview of how the tallies work in relation to the camera’s. A simple overview of the tallies in correlation between the server and the streamer is shown below:</p> <img alt="_images/overview.svg" class="drawio" src="_images/overview.svg" /><section id="hardware"> <h2>Hardware<a class="headerlink" href="#hardware" title="Permalink to this heading"></a></h2> <p>The hardware for the tallies is an <code class="docutils literal notranslate"><span class="pre">esp8266</span></code> microcontroller, as they can be found <a class="reference external" href="https://www.amazon.nl/Diymore-ESP8266-WiFi-ontwikkelingskaart-NodeMCU-ESP-12E-module/dp/B09Z6T2XS4/ref=sr_1_2_sspa?__mk_nl_NL=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=3DHTKU7SQKET9&keywords=esp8266&qid=1674509572&sprefix=esp8266%2Caps%2C135&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1">on Amazon</a>. These microcontrollers are very cheap but are capable of using the <code class="docutils literal notranslate"><span class="pre">802.11</span> <span class="pre">b/g/n</span></code> wifi standard(<code class="docutils literal notranslate"><span class="pre">IEEE</span></code>).</p> <p>A quick overview of the hardware:</p> <table class="docutils align-default"> <colgroup> <col style="width: 40%" /> <col style="width: 60%" /> </colgroup> <thead> <tr class="row-odd"><th class="head"><p>Type</p></th> <th class="head"><p>Value</p></th> </tr> </thead> <tbody> <tr class="row-even"><td><p>CPU</p></td> <td><p>32Bit RISC based on <code class="docutils literal notranslate"><span class="pre">Xtensa</span> <span class="pre">lx106</span></code></p></td> </tr> <tr class="row-odd"><td><p>Instruction RAM</p></td> <td><p>32 KiB</p></td> </tr> <tr class="row-even"><td><p>Instruction Cache</p></td> <td><p>32 KiB</p></td> </tr> <tr class="row-odd"><td><p>User Data RAM</p></td> <td><p>80 KiB</p></td> </tr> <tr class="row-even"><td><p>System Data RAM</p></td> <td><p>16 KiB</p></td> </tr> <tr class="row-odd"><td><p>Flash Memory (External)</p></td> <td><p>4 MiB</p></td> </tr> </tbody> </table> <p>Of the 17 GPIO pins available, only 3 are used for the RGB colouring. Wifi is used for communication between the tallies and a server that will tell the tally to turn on the lights.</p> </section> <section id="software"> <h2>Software<a class="headerlink" href="#software" title="Permalink to this heading"></a></h2> <p>On the Host a <code class="docutils literal notranslate"><span class="pre">NodeJS</span></code> server is run that opens a websocket on port <code class="docutils literal notranslate"><span class="pre">7411</span></code>. This websockets waits for tallies to connect and sends data to them when connected. The server also connects to the streamer, in our case a <code class="docutils literal notranslate"><span class="pre">Black</span> <span class="pre">Magic</span> <span class="pre">ATEM</span></code> that controls the camera’s. The streamer gives information about which camera is active which is passed to the tallies.</p> </section> </section> </div> </div> <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer"> <a href="index.html" class="btn btn-neutral float-left" title="Tallies in Oostendam" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a> </div> <hr/> <div role="contentinfo"> <p>© Copyright 2023, Eljakim.</p> </div> Built with <a href="https://www.sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/readthedocs/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script> jQuery(function () { SphinxRtdTheme.Navigation.enable(true); }); </script> </body> </html>