レッツラズパイ！〜Google Homeに室温を教えてもらおう編〜

$ sudo apt-get autoremove nodejs

$ sudo mkdir ~/.nvm
$ sudo chmod 777 ~/.nvm

$ ls -la ~/.

時刻確認コマンド
$ date

※時刻がずれていた場合(例)
$ sudo date -s "06/18 13:00 2018"

$ git clone https://github.com/creationix/nvm.git ~/.nvm

$ source ~/.nvm/nvm.sh

$ nvm --version

$ nvm ls-remote
※2018/6/18時点でLTSはv8.11.3

$ nvm install v8.11.3

$ node -v
$ npm -v

$ sudo vim /etc/profile.d/nvm.sh

source ~/.nvm/nvm.sh

$ nvm alias default v8.11.3

$ mkdir ~/googlehome
$ cd ~/googlehome

$ pwd

$ sudo apt-get install git-core libnss-mdns libavahi-compat-libdnssd-dev

$ git clone https://github.com/noelportugal/google-home-notifier

$ cd ~/googlehome/google-home-notifier
$ vim package.json

  ],
  "license": "MIT",
  "dependencies": {
    "body-parser": "^1.15.2",
    "castv2-client": "^1.1.2",

 ],
  "license": "MIT",
  "repository": {
    "type": "git"
  },
  "dependencies": {
    "body-parser": "^1.15.2",
    "castv2-client": "^1.1.2",

$ npm install

vim /home/pi/googlehome/google-home-notifier/test.js

const googlehome = require('./google-home-notifier')
const language = 'ja';

googlehome.device('【google homeのデバイス名】', language);
googlehome.ip("【google homeのIPアドレス】"); //ここにgoogle homeのip追記．

googlehome.notify('こんにちは。私はグーグルホームです。', function(res) {
  console.log(res);
});

vim /home/pi/googlehome/google-home-notifier/google-home-notifier.js

var Client = require('castv2-client').Client;
var DefaultMediaReceiver = require('castv2-client').DefaultMediaReceiver;
var mdns = require('mdns');
var browser = mdns.createBrowser(mdns.tcp('googlecast'));
var deviceAddress;
var language;

var device = function(name, lang = 'ja') {   // ここを「ja」に書き換える
    device = name;
    language = lang;
    return this;
};

var ip = function(ip, lang = 'ja') {    // ここを「ja」に書き換える
  deviceAddress = ip;
  language = lang;
  return this;
}

deviceAddress = '【Google HomeのIPアドレス】';    // Google HomeのIPアドレスを書き加える

var googletts = require('google-tts-api');
var googlettsaccent = 'ja';    // ここを「ja」に書き換える
var accent = function(accent) {
  googlettsaccent = accent;
  return this;
}

// ############ 以下省略 #############

vim /home/pi/googlehome/google-home-notifier/node_modules/google-tts-api/lib/key.js

eval(html.match(/TKK=eval\(\'\(.*\)\'\);/g)[0]);

eval(html.match(/TKK='[0-9]+.[0-9]+'/g)[0]);

node /home/pi/googlehome/google-home-notifier/test.js

<?php
//deviceIdは、先ほど確認したデバイスIDの値を入力
$deviceId = '【デバイスID】';
$today = date("Ymd");
$time = date("H:i");
$sensor_path = '/sys/bus/w1/devices/'.$deviceId.'/w1_slave';
$csv_dir = '/var/www/temperature/';
$csv_file = $today.'.csv';
$t = null;
//温度取得
exec("cat ".$sensor_path, $w1_slave);
if(isset($w1_slave[1])){
$tmp = explode('t=', $w1_slave[1]);

if(isset($tmp[1])) $t = $tmp[1] / 1000;
if(isset($t)) $t2 = explode('.', $t);
}
//CSV書き込み
if(!file_exists($csv_dir)){
mkdir($csv_dir);
}
if( $handle = fopen( $csv_dir.$csv_file , 'w' ) ){
fputcsv( $handle, Array("現在、".$t2[0]."度です") );
fclose($handle);
}
return;

tail -F /var/www/temperature/YYYYMMDD.csv
※YYYYMMDD.csvは作業日と同じ日付のファイルを指定してください。

vim /home/pi/googlehome/google-home-notifier/smarthome.py

import paho.mqtt.client as mqtt
import json
import subprocess

TOKEN = "【Beebotteで取得したトークン】"
HOSTNAME = "mqtt.beebotte.com"
PORT = 8883
TOPIC = "【Beebotteのチャンネル名】/voice"
CACERT = "mqtt.beebotte.com.pem"

# 名詞の変換表
noun_conv = {
            "気温": "temperature",
            "室温": "temperature",
            "温度": "temperature",
            }

# 接続中の処理を記載→subscribeする
def on_connect(client, userdata, flags, respons_code):
        print('status {0}'.format(respons_code))
        client.subscribe(TOPIC)


def on_message(client, userdata, msg):
    print(msg.topic + " " + str(msg.payload))
    data = json.loads(msg.payload.decode("utf-8"))["data"][0]
    # Google Assistantの側でTextFiledの前後に半角スペースが入ることがあるのでstripして削除
    data = {key:value.strip(' ') for key, value in data.items()}
    # 「〜は」と言ってしまった際に「は」が入ってTextFieldに入ってくることがあるので削除
    if data["device"].endswith("は"):
        data["device"] = data["device"][:-1]
    print(data)

    # 日本語の表記ゆれに併せて、IFTTTのTextFieldをtemperatureに修正
    if not data["device"] in set(noun_conv.values()):
        try:
            data["device"] = noun_conv[data["device"]]
        except:
            print("unkown device")
            return
        print(data)
    subprocess.call(['node', '/home/pi/googlehome/google-home-notifier/googlehome.js'])


client = mqtt.Client()
client.username_pw_set("token:%s"%TOKEN)
client.on_connect = on_connect
client.on_message = on_message
client.tls_set(CACERT)
client.connect(HOSTNAME, port=PORT, keepalive=60)
client.loop_forever()

vim /home/pi/googlehome/google-home-notifier/googlehome.js

const googlehome = require('./google-home-notifier')
const language = 'ja';

const execSync = require('child_process').execSync;
const result =  execSync('cat /var/www/temperature/`date "+%Y%m%d"`.csv').toString();


googlehome.device('【Google Homeのデバイス名】', language);
googlehome.ip("【Google HomeのIPアドレス】"); //ここにgoogle homeのip追記．

googlehome.notify(result, function(res) {
  console.log(res);
});

$ sudo pip3 install paho-mqtt

$ wget https://beebotte.com/certs/mqtt.beebotte.com.pem -P /home/pi/googlehome/google-home-notifier

python3 /home/pi/googlehome/google-home-notifier/smarthome.py