<script type="text/html" data-template-name="rpi-neopixels"> <div class="form-row"> <label for="node-input-pixels"><i class="fa fa-sun-o"></i> LEDs</label> <input type="text" id="node-input-pixels" placeholder="number" style="width:60px;"> in the string <span style="margin-left:50px;">Pin Number </span> <select id="node-input-gpio" style="width:50px; margin-left:5px;"> <option value="18">12</option> <option value="12">32</option> <option value="13">33</option> <option value="19">35</option> </select> </div> <div class="form-row"> <label for="node-input-mode"><i class="fa fa-cogs"></i> Mode</label> <select id="node-input-mode" style="width:73%"> <option value="pcent">Bar - Percent of length</option> <option value="pixels">Bar - Number of pixels</option> <option value="pcentneedle">Needle - Percent of length</option> <option value="pixelsneedle">Needle - Number of pixels</option> <option value="shiftu">Add pixel to start</option> <option value="shiftd">Add pixel to end</option> </select> </div> <div class="form-row" id="bgcol"> <label for="node-input-bgnd"><i class="fa fa-picture-o"></i> Background</label> <input type="text" id="node-input-bgnd" placeholder="HTML colour name or rrr,ggg,bbb"> </div> <div class="form-row" id="fgcol"> <label for="node-input-fgnd"><i class="fa fa-picture-o"></i> Foreground</label> <input type="text" id="node-input-fgnd" placeholder="HTML colour name or rrr,ggg,bbb"> </div> <div class="form-row"> <label for="node-input-wipe"><i class="fa fa-clock-o"></i> Wipe time</label> <input type="text" id="node-input-wipe" placeholder="number" style="width:60px;"> mS Pixel order <select id="node-input-rgb" style="width:80px"> <option value="rgb">RGB</option> <option value="grb">GRB</option> </select> </div> <div class="form-row"> <label for="node-input-brightness"><i class="fa fa-sun-o"></i> Brightness</label> <input type="text" id="node-input-brightness" placeholder="number" style="width:60px;"> (0-100) </div> <div class="form-row"> <label for="node-input-gamma"> </label> <label for="node-input-gamma" style="width:70%"> <input type="checkbox" id="node-input-gamma" style="display:inline-block; width:22px; vertical-align:baseline;"> Apply gamma correction </label> </div> <br/> <div class="form-row"> <label for="node-input-name"><i class="fa fa-tag"></i> Name</label> <input type="text" id="node-input-name"> </div> <div class="form-tips"><b>Note</b>: pins 12 and 32 are on channel 0, and 33 and 35 are on channel 1. You can only use one pin from each channel.</div> </script> <script type="text/html" data-help-name="rpi-neopixels"> <p>Raspberry Pi node to drive a string of neopixel or ws2812 LEDs.</p> <p>Defaults to a bar chart style mode using configured foreground and background colours. It can also display a needle (single pixel) type gauge.</p> <p>It can accept a number in <code>msg.payload</code> that can be either the number of pixels, or a percentage of the total length.</p> <p>If you want to change the foregound colour, you can send a CSV of <i>html colour,length</i>.</p> <p>To set the background just send an <i>html colour</i> name. <a href="http://html-color-codes.info/color-names/" target="_top">Here is a list</a> of html colour names.<p> <p>You can also select shift modes where a single colour pixel is added to either the start or the end of the strip.</p> <p>The <i>nth</i> pixel is set by <code>msg.payload</code> with a CSV string <i>n,r,g,b</i> <!-- <p>The whole strip is set by <code>msg.payload</code> with a CSV string <i>r,g,b</i> --> <p>A range of pixels from <i>x</i> to <i>y</i> can be set by <code>msg.payload</code> with a CSV string <i>x,y,r,g,b</i> <p>By default, gamma correction is enabled but it can disabled which can be useful for working with low brightness levels</p> <p><code>msg.brightness</code> can be used to dynamically set brightness level</p> <p>The pixels data line should be connected to Pi physical pin 12, 32, 33 or 35. <b>Note:</b> pins 12 and 32 are on the same channel, as are 33 and 35. If you want connect two neopixels then use pins from different channels.</p> <p>Note: this node may also conflict with audio playback.</p> <p align="right"><a href="http://flows.nodered.org/node/node-red-node-pi-neopixel#usage">More info </a></p> </script> <script type="text/javascript"> RED.nodes.registerType('rpi-neopixels',{ category: 'Raspberry Pi', color:"#c6dbef", defaults: { name: { value:"" }, gpio: { value:18 }, pixels: { value:"", required:true, validate:RED.validators.number() }, bgnd: { value:"" }, fgnd: { value:"" }, wipe: { value:"40", required:true, validate:RED.validators.number() }, mode: { value:"pcent" }, rgb: { value:"rgb" }, brightness: { value:"100", required:true, validate:RED.validators.number() }, gamma: { value: true } }, inputs:1, outputs:0, icon: "rpi.png", align: "right", label: function() { return this.name||this.pixels+" neopixels"; }, labelStyle: function() { return this.name?"node_label_italic":""; }, oneditprepare: function() { if (this.gamma === undefined) { this.gamma = true; $("#node-input-gamma").prop('checked', true); } if (this.brightness === undefined) { this.brighness = "100"; $("#node-input-brightness").val("100"); } var setstate = function () { if ($('#node-input-mode').val().indexOf("shift") !== -1) { $("#bgcol").hide(); $("#fgcol").hide(); } else { $("#bgcol").show(); $("#fgcol").show(); } }; $("#node-input-mode").change(function () { setstate(); }); setstate(); } }); </script>