Alexaで空気環境を調べる

• Alexaからラズパイに部屋の空気環境を喋らす

  • 使用するRaspberry Piは低スペックなのでリアルタイムで喋らすには無理

    • iot001.local –> Raspberry Pi Model B Plus Rev 1.2

      pi@iot001:~ $ cat /proc/cpuinfo
      processor	: 0
      model name	: ARMv6-compatible processor rev 7 (v6l)
      BogoMIPS	: 697.95
      Features	: half thumb fastmult vfp edsp java tls
      CPU implementer	: 0x41
      CPU architecture: 7
      CPU variant	: 0x0
      CPU part	: 0xb76
      CPU revision	: 7
      
      Hardware	: BCM2835
      Revision	: 0010
      Serial		: 000000006979c362
      Model		: Raspberry Pi Model B Plus Rev 1.2   

    • iot002.local –> Raspberry Pi Zero W Rev 1.1

      pi@iot002:~ $ cat /proc/cpuinfo
      processor	: 0
      model name	: ARMv6-compatible processor rev 7 (v6l)
      BogoMIPS	: 997.08
      Features	: half thumb fastmult vfp edsp java tls
      CPU implementer	: 0x41
      CPU architecture: 7
      CPU variant	: 0x0
      CPU part	: 0xb76
      CPU revision	: 7
      
      Hardware	: BCM2835
      Revision	: 9000c1
      Serial		: 000000002c28cc9a
      Model		: Raspberry Pi Zero W Rev 1.1

  • iot002.localではBME680環境センサーから温度、湿度、気圧、IAQをpepoiothoused_voiceでopen-jtalkを使い定期的に音声ファイルに変換これを要求に応じて再生

  • Alexaのボイス・コマンドでSwitchのオンオフする際にhomebridge-cmdプラグインを使う・・・/var/log/homebridge.log抜粋
    [20/05/2023, 16:22:20] [Alexa] PowerController TurnOn B8:27:EB:7D:99:CF undefined null
    [20/05/2023, 17:25:08] [床下環境] Setting power state to on
    [20/05/2023, 17:25:09] [床下環境] power function succeeded!
    [20/05/2023, 17:25:09] [床下環境]
    [20/05/2023, 17:25:09] [Alexa] PowerController TurnOn B8:27:EB:7D:99:CF undefined null

    • 床下状態教えて・・・Alexaアプリ定型アクションで「床下環境」をオンオフ
    • homebridge config.json抜粋
      {

        "accessory": "CMD",
        "name": "床下環境",
        "on_cmd": "sudo /usr/local/bin/pepoalexacmd_on iot002.local remote hand dio1high",
        "off_cmd": "sudo /usr/local/bin/pepoalexacmd_off iot002.local remote hand dio1high"

      },
    • pepoalexacmdコマンドで/usr/bin/dio1highを起動
      pepoalexacmd_onとpepoalexacmd_offへSymbolic link
      https://github.com/kujiranodanna/IOT-House/blob/master/raspberrypi/usr/local/bin/pepoalexacmd
    • /usr/bin/dio1highを確認

      # cat /usr/bin/dio1high
      #!/bin/bash
      LOCK=/www/remote-hand/tmp/dio1high.lock
      if [ -e $LOCK ];then
        exit
      else
        echo -en $$ >$LOCK
      fi
      WGETMAIL=/usr/local/bin/peposendmail
      if [ mail_message = "mail" ];then
        WGETMAIL=/usr/local/bin/peposendmail
        SUBJECT=床下環境+dio1high
      elif [ mail_message = "mail_message" ];then
        DIR=/www/remote-hand/tmp
        tTALK=$DIR/pepoiothoused_voice_talk.wav
        TALK=$DIR/iot002_voice.wav
        if [ -e $tTALK ];then
          cp $tTALK $TALK
          /usr/local/bin/pepocurlupload iot001.local $TALK
        fi
        /usr/local/bin/pepoalexahelp
        MESSAGE=$(cat /www/remote-hand/tmp/.voice_req| awk '{sub("部屋","床下",$0);sub("質","の状態",$0);printf $0}')
        WGETMAIL=/usr/local/bin/pepolinemsgsend
        $WGETMAIL $MESSAGE

    • iot002.localはスピーカー未搭載なのでiot001.localへ音声ファイルを転送して喋ってもらう
    • pepoalexahelpでリアルタイムの空気状態を取得pepolinemsgsendでLine通知

Homebridge-alexa「床下状態教えて」音声コマンド・デモ