webthing-led

main.js

/*
 * Copyright (c) 2018  Moddable Tech, Inc.
 *
 *   This file is part of the Moddable SDK.
 * 
 *   This work is licensed under the
 *       Creative Commons Attribution 4.0 International License.
 *   To view a copy of this license, visit
 *       <http://creativecommons.org/licenses/by/4.0>.
 *   or send a letter to Creative Commons, PO Box 1866,
 *   Mountain View, CA 94042, USA.
 *
 */

import Timer from "timer";
import Digital from "pins/digital";
import Monitor from "monitor";
import config from "mc/config";
import MDNS from "mdns";

import {WebThings, WebThing} from "webthings";

const HOSTNAMES = ["modled", "modledtoggle"];

class OnOffLight extends WebThing {
	constructor(host) {
		super(host);
		this.state = true;
	}
	get on() {
		return this.state;
	}
	set on(state) {
		trace(`State: ${state}\n`);
		if (state == this.state) return;
		this.state = state;
		led1.write(state);
		this.changed();
		//application.distribute("onLightUpdate", state);
	}
	static get description() {
		return {
			"@context": "https://iot.mozilla.org/schemas",
			"@type": ["Light", "OnOffSwitch"],
			name: "light",
			description: "On/off light",
			properties: {
				on: {
					type: "boolean",
					description: "light state",
					txt: "on"
				}
			}
		}
	}
}


let things;

function onHostname( hostname) {
		trace(`Got hostname ${hostname}.\n`);
		things = new WebThings(mdns);
		things.add(OnOffLight);
		
    
		let monitor1 = new Monitor({pin: config.button1_pin, mode: Digital.InputPullUp, edge: Monitor.Falling});
	monitor1.onChanged = function() {
   trace(`Button 1: state: ${this.read()}\n`);
   toggle();
	}
  function toggle() {
    let old_state=things.things[0].instance["on"];
	trace(`Old state: ${old_state}\n`);
    if ( things ) {
      things.things[0].instance["on"] = !old_state;
    }
    
}

toggle();

let count = 0;
Timer.repeat(() => {
	trace(`repeat ${++count} \n`);
	toggle();
}, 15000);


	}

let index=0;

let mdns = new MDNS({hostName: HOSTNAMES[index]}, (message, value) => {
			switch (message) {
				case 1:
					if ("" !== value) onHostname(value);
					break;
				case 2:
					index++;
					if (index < HOSTNAMES.length) {
						trace(`Failed to get hostname ${value}...\n`);
						return HOSTNAMES[index];
					} else {
						trace(`Failed to get a hostname. Stopping.\n`);
						return -1;
					}
					break;
			}
		});
    
    
 //   let state=0;

let led1 = new Digital({pin: config.led1_pin, mode: Digital.Output});
//led1.write(state);


let keys = Object.keys(config);
keys.forEach(key => trace(`key: ${key}, value: ${config[key]}\n`));
trace("\n");

manifest.json

{
	"include": [
		"$(MODDABLE)/examples/manifest_base.json",
		"$(MODDABLE)/examples/manifest_net.json",		
		"$(MODDABLE)/modules/network/mdns/manifest.json",		
		"$(MODDABLE)/modules/network/webthings/manifest.json",
		"$(MODULES)/pins/digital/manifest.json",
		
	],
	"modules": {
		"*": [
			"$(MODULES)/pins/digital/monitor/*",	
			"./main",
		],
	},
	"platforms": {
		"esp32": {
			"config": {
				"led1_pin": 21,
				"button1_pin": 0,
			},
			"modules": {
				"*": "$(MODULES)/pins/digital/monitor/esp32/*",
			},
		},
		"esp": {
			"config": {
				"led1_pin": 2,
				"button1_pin": 0,
			},
			"modules": {
				"*": "$(MODULES)/pins/digital/monitor/esp/*",
			},
		},		
		"...": {
			"error": "need button and led pins"
		},
	}
}