doorbell/bellhear.js@e8ccd40d0ef6 (annotated)
doorbell/bellhear.js
Thu, 04 Jun 2015 14:50:33 +0200
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 04 Jun 2015 14:50:33 +0200
- changeset 0
- e8ccd40d0ef6
- permissions
- -rwxr-xr-x
Genesis of lecture sources for Droidcon Berlin 2015 in Postbahnhof.
| michael@0 | 1 | #! /usr/bin/env node |
| michael@0 | 2 | // |
| michael@0 | 3 | // Doorbell - Door Bell Gateway for Mesh Networks |
| michael@0 | 4 | // Copyright © 2015 Michael Schloh von Bennewitz <michael@schloh.com> |
| michael@0 | 5 | // |
| michael@0 | 6 | // Permission to use, copy, modify, and/or distribute this software for |
| michael@0 | 7 | // any purpose with or without fee is hereby granted, provided that the |
| michael@0 | 8 | // above copyright notice and this permission notice appear in all copies. |
| michael@0 | 9 | // |
| michael@0 | 10 | // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| michael@0 | 11 | // WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| michael@0 | 12 | // WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| michael@0 | 13 | // AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| michael@0 | 14 | // DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| michael@0 | 15 | // PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS |
| michael@0 | 16 | // ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF |
| michael@0 | 17 | // THIS SOFTWARE. |
| michael@0 | 18 | // |
| michael@0 | 19 | // This file is part of Doorbell, a smart door bell IoT gateway |
| michael@0 | 20 | // which can be found at http://dev.europalab.com/doorbell/ |
| michael@0 | 21 | // |
| michael@0 | 22 | // bellhear.js: ECMA JavaScript implementation |
| michael@0 | 23 | // |
| michael@0 | 24 | |
| michael@0 | 25 | /*********************************************************** |
| michael@0 | 26 | | _ _ _ _ | |
| michael@0 | 27 | | __| | ___ ___ _ __| |__ ___| | | | |
| michael@0 | 28 | | / _` |/ _ \ / _ \| '__| '_ \ / _ \ | | | |
| michael@0 | 29 | | | (_| | (_) | (_) | | | |_) | __/ | | | |
| michael@0 | 30 | | \__,_|\___/ \___/|_| |_.__/ \___|_|_| | |
| michael@0 | 31 | | | |
| michael@0 | 32 | | Requirements: MQTT broker with standard configuration | |
| michael@0 | 33 | | NodeJS and NPM modules (see package.json) | |
| michael@0 | 34 | | | |
| michael@0 | 35 | | Execute: To start this application, launch it with the | |
| michael@0 | 36 | | script named bellhear.js: $ ./bellhear.js | |
| michael@0 | 37 | | | |
| michael@0 | 38 | | Support: http://list.europalab.com/mailman/doorbell/ | |
| michael@0 | 39 | | | |
| michael@0 | 40 | | Test: mosquitto_pub -m ON -t door/bell | |
| michael@0 | 41 | | | |
| michael@0 | 42 | ***********************************************************/ |
| michael@0 | 43 | |
| michael@0 | 44 | |
| michael@0 | 45 | // Simple doorbell subscribe client |
| michael@0 | 46 | var mqtt = require('mqtt'); |
| michael@0 | 47 | var locli = mqtt.connect('mqtt://localhost/'); |
| michael@0 | 48 | |
| michael@0 | 49 | locli.on('connect', function () { |
| michael@0 | 50 | //locli.subscribe('/door/bell'); // explicit |
| michael@0 | 51 | //locli.subscribe('/door/#'); // recursive |
| michael@0 | 52 | locli.subscribe('/door/+'); // one level |
| michael@0 | 53 | }); |
| michael@0 | 54 | |
| michael@0 | 55 | locli.on('message', function(topic, message) { |
| michael@0 | 56 | console.log(message.toString()); |
| michael@0 | 57 | //locli.end(); |
| michael@0 | 58 | }); |
| michael@0 | 59 | |
| michael@0 | 60 | // disable automatic reconnect |
| michael@0 | 61 | locli.options.reconnectPeriod = 0; |
