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docs and examples
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‎contributed/effects/manySchemes/main.js‎

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/*
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* Copyright (c) 2018 Moddable Tech, Inc.
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*
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* This file is part of the Moddable SDK.
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*
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* This work is licensed under the
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* Creative Commons Attribution 4.0 International License.
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* To view a copy of this license, visit
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* <http://creativecommons.org/licenses/by/4.0>.
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* or send a letter to Creative Commons, PO Box 1866,
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* Mountain View, CA 94042, USA.
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*
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*/
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import Timer from "timer";
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import Time from "time";
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import Digital from "pins/digital";
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import Monitor from "pins/digital/monitor";
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import { NeoStrand, NeoStrandEffect } from "neostrand";
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const CYCLE_AUTOMATICALLY = 10000; // ms to cycle to the next effect
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const LEN = 144;
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const Timing_WS2812B = {
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mark: { level0: 1, duration0: 18, level1: 0, duration1: 7, },
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space: { level0: 1, duration0: 7, level1: 0, duration1: 18, },
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reset: { level0: 0, duration0: 600, level1: 0, duration1: 600, } };
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const strand = new NeoStrand({length: LEN, pin: 22, order: "RGB", timing: Timing_WS2812B});
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strand.brightness = 128;
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let mode = 0;
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let schemes = [];
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let baseDictionary = { strand };
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let marqueeDictionary = Object.assign({}, baseDictionary, { });
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let marquee1 = Object.assign({}, baseDictionary,
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{ sizeA: 1, rgbA: { r: 0x80, g: 0, b: 0 },
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sizeB: 4, rgbB: { r: 0, g: 0, b: 0x80 }
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});
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let marquee2 = Object.assign({}, marquee1, { reverse: 1 });
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let hueSpanDictionary = Object.assign({}, baseDictionary, { });
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let hueSpan1 = Object.assign({}, baseDictionary, { reverse: 1 });
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let hueSpan2 = Object.assign({}, baseDictionary, { size: (strand.length / 4) });
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let hueSpan3 = Object.assign({}, hueSpan2, { reverse: 1 });
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let sineDictionary = Object.assign({}, baseDictionary, { offset: .5 });
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let pulseDictionary = Object.assign({}, baseDictionary, { });
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let pulse1 = Object.assign({}, baseDictionary,
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{ direction: 0,
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duration: 5000,
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position: "random" });
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let patternDictionary = Object.assign({}, baseDictionary, { });
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let pattern1 = Object.assign({}, baseDictionary,
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{ pattern: [ 0x003300, 0x003300, 0x003300, 0x131313, 0x131313 ] });
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let pattern2 = Object.assign({}, baseDictionary,
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{ pattern: [ 0x110000, 0x008800, 0x008800, 0x008800, 0x008800 ] });
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schemes.push( [ new NeoStrand.Marquee( marqueeDictionary ) ]);
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schemes.push( [ new NeoStrand.Marquee( marquee1 ) ]);
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schemes.push( [ new NeoStrand.Marquee( marquee2 ) ]);
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schemes.push( [ new NeoStrand.HueSpan( hueSpanDictionary ) ]);
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schemes.push( [ new NeoStrand.HueSpan( hueSpan1 ) ]);
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schemes.push( [ new NeoStrand.HueSpan( hueSpan2 ) ]);
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schemes.push( [ new NeoStrand.HueSpan( hueSpan3 ) ]);
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schemes.push( [ new NeoStrand.Sine( sineDictionary ) ]);
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schemes.push( [ new NeoStrand.Pulse( pulseDictionary ) ]);
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schemes.push( [ new NeoStrand.Pulse( pulse1 ) ]);
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schemes.push( [ new NeoStrand.Pulse( pulse1 ) ,
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new NeoStrand.Pulse( pulse1 ),
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new NeoStrand.Pulse( pulse1 ),
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]);
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schemes.push( [ new NeoStrand.Pattern( patternDictionary ) ]);
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schemes.push( [ new NeoStrand.Pattern( pattern1 ) ]);
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schemes.push( [ new NeoStrand.Pattern( pattern2) ]);
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strand.setScheme(schemes[0]);
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strand.start(50);
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let monitor = new Monitor({
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pin: 0,
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mode: Digital.InputPullUp,
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edge: Monitor.Falling });
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monitor.lastMS = Time.ticks;
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monitor.onChanged = function() {
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let t = Time.ticks;
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if ((t - this.lastMS) > 125) {
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mode = (mode + 1) % schemes.length;
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strand.setScheme(schemes[mode]);
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}
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this.lastMS = t;
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}
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class RandomColor extends NeoStrandEffect {
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constructor(dictionary) {
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super(dictionary);
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this.name = "RandomColor"
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this.size = dictionary.size ? dictionary.size : 5;
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this.max = dictionary.max ? dictionary.max : 64;
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}
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loopPrepare(effect) {
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effect.colors_set = 0;
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}
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activate(effect) {
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effect.timeline.on(effect, { effectValue: [ 0, effect.dur ] }, effect.dur, null, 0);
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effect.reset(effect);
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}
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set effectValue(value) {
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if (0 == this.colors_set) {
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for (let i=this.start; i<this.end; i++) {
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if (0 == (i % this.size))
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this.color = this.strand.makeRGB(Math.random() * this.max, Math.random() * this.max, Math.random() * this.max);
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this.strand.set(i, this.color, this.start, this.end);
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}
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this.colors_set = 1;
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}
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}
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}
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schemes.push( [ new RandomColor( { strand, loop: 1, duration: 5000 } ) ]);
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‎contributed/effects/manySchemes/manifest.json‎

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{
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"include": [
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"$(MODDABLE)/examples/manifest_base.json",
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"$(MODULES)/pins/digital/monitor/manifest.json",
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],
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"creation": {
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"stack": 400,
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"static": 43008,
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},
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"modules": {
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"*": [
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"$(MODULES)/drivers/neopixel/*",
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"$(MODDABLE)/examples/experimental/neostrand/*",
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"./main",
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],
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"piu/Timeline": "$(MODULES)/piu/All/piuTimeline",
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},
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"preload": [
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"neopixel",
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"neostrand",
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"piu/Timeline",
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],
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"platforms": {
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"esp32": {
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"modules": {
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"*": "$(MODULES)/drivers/neopixel/esp32/*",
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},
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},
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"...": {
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"error": "unsupported platform"
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},
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}
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}

‎contributed/effects/readme.md‎

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This directory contains community contributed modules and code. We thank the contributors for sharing their work and hope you find it useful. Moddable does not provide support for the contents of this directory.
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