cool-iot – Blame information for rev 7
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Rev | Author | Line No. | Line |
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5 | office | 1 | #!/usr/bin/env nodejs |
2 | office | 2 | /////////////////////////////////////////////////////////////////////////// |
3 | // Copyright (C) Wizardry and Steamworks 2018 - License: GNU GPLv3 // |
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4 | // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // |
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5 | // rights of fair usage, the disclaimer and warranty conditions. // |
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6 | /////////////////////////////////////////////////////////////////////////// |
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7 | |||
8 | const Gpio = require('onoff').Gpio |
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9 | const mqtt = require('mqtt') |
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10 | const YAML = require('yamljs'); |
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11 | const winston = require('winston') |
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12 | |||
13 | // Load configuration file. |
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14 | const config = YAML.load('config.yml'); |
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15 | |||
16 | // Generate GPIO pins for configuration. |
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17 | var COOL = {}; |
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18 | for(var i in config.GPIO) { |
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19 | if(!config.GPIO.hasOwnProperty(i)) |
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20 | continue; |
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21 | |||
22 | if(config.GPIO[i] === -1) |
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23 | continue; |
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24 | |||
25 | COOL[i] = new Gpio(config.GPIO[i], 'out') |
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26 | } |
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27 | |||
28 | // Set up logger. |
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5 | office | 29 | winston.add(winston.transports.File, {filename: config.log}) |
2 | office | 30 | |
31 | // Initiate connection to MQTT. |
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6 | office | 32 | const client = mqtt.connect(config.mqtt.url, {queueQoSZero: false}) |
2 | office | 33 | |
34 | client.on('connect', function () { |
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35 | winston.info('Connected to MQTT server') |
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36 | client.subscribe(config.mqtt.topic) |
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37 | }) |
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38 | |||
39 | client.on('message', function (topic, message) { |
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6 | office | 40 | if(message.length === 0) |
41 | return; |
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42 | |||
43 | // Remove any retained message. |
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44 | client.publish(topic, "", {retain: true}) |
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45 | |||
7 | office | 46 | message. |
2 | office | 47 | message = message.toString() |
5 | office | 48 | winston.info('Received message: ' + message) |
2 | office | 49 | if(!(message in config.GPIO)) { |
50 | winston.warn('Request to toggle unknown GPIO: ' + message) |
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51 | return; |
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52 | } |
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53 | |||
54 | var pin = config.GPIO[message] |
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55 | if(pin === -1) { |
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56 | winston.warn('GPIO pin for "' + message + '" is not configured') |
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57 | return; |
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58 | } |
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59 | |||
60 | winston.info('Toggling pin ' + pin + ' for ' + message) |
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7 | office | 61 | COOL[message].write(1, (err) => { |
62 | if(err) { |
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63 | winston.err('Unable to toggle pin ' + pin + ' error message received is: ' + err.message) |
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64 | return; |
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65 | } |
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66 | |||
67 | setTimeout(function() { |
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68 | winston.info('Toggled pin ' + pin + ' for ' + message) |
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69 | COOL[message].write(0) |
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70 | }, 1000) |
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71 | }) |
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2 | office | 72 | }) |