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Google Assistant with Raspberry Pi
Yuki Anzai
June 22, 2017
Technology
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Google Assistant with Raspberry Pi
Yuki Anzai
June 22, 2017
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Transcript
Raspberry Pi Ͱ Google Assistant Λମݧ͠Α͏ ͋Μ͍͟Ώ͖ʢ@yanzmʣ GTUG Girls Meet
Up #33
ࢿྉ goo.gl/CDHpi4
Google Assistant • https://assistant.google.com/ • SDK • https://developers.google.com/assistant/sdk/ prototype/getting-started-pi-python/
ඞཁͳͷ • Raspberry Pi 3ʢRaspberry Pi 2 + WiFiυϯάϧͰ Մʣ
• Raspbian JessieͷΠϯετʔϧ͞ΕͨmicroSD • ిݯΞμϓλ ͘͠ microUSBέʔϒϧ • USB ϚΠΫ ͘͠ϚΠΫଂܕͷUSBΧϝϥ • εϐʔΧʔʢUSB or 3.5mmδϟοΫʣ
४උ • Raspberry Pi Λ WiFi ʹଓ͢Δ
४උ • Raspberry Pi ͰίϯιʔϧΛ։͖ɺifconfig ίϚϯ υΛ࣮ߦͯ͠IPΞυϨεΛϝϞ͢Δ
४උ • Raspberry Pi Ͱ SSH Λ༗ޮʹ͢Δ • Preferences -
Raspberry Pi Configuration - Interfaces • SSH Λ Enabled ʹͯ͠ OK ΛΫϦοΫ
४උ2 • ࣌ࠁઃఆΛ֬ೝ͢Δʢ͕࣌ؒਖ਼͚͠ΕOKʣ • JST ʹ͍ͨ͠ͳΒ • Preferences - Raspberry
Pi Configuration - Localisation • Set Timezone ΛΫϦοΫ • Area: Asia, Location: Tokyo • ࠶ىಈ
४උ3 • Raspberry Pi ʹ PC ͔Β SSH ͰϩάΠϯ͢Δ $
ssh pi@[ϝϞͨ͠IPΞυϨε] password: [σϑΥϧτraspberry] • ࣌ࠁઃఆΛ֬ೝ͢Δʢ͕࣌ؒਖ਼͚͠ΕOKʣ $ date
։ൃϓϩδΣΫτͱ ΞΧϯτͷઃఆ • https://developers.google.com/assistant/sdk/ prototype/getting-started-pi-python/config-dev- project-and-account Λ։͘ • goo.gl/GxLUSW •
Ҏ߱ɺ͜ͷϖʔδΛʮઃఆखॱυΩϡϝϯτʯͱݺ ͼ·͢ɻ
৽͍͠ϓϩδΣΫτΛ࡞Δ - 1 • ʮઃఆखॱυΩϡϝϯτʯʹ͋Δ GO TO THE PROJECT PAGE
ϘλϯΛΫϦοΫ͢Δ
৽͍͠ϓϩδΣΫτΛ࡞Δ - 2 • ্ͷํʹ͋ΔϓϩδΣΫτΛ࡞ΛΫϦοΫ • ϓϩδΣΫτ໊Λೖྗͯ͠࡞ΛΫϦοΫ • ͳΜͰΑ͍Ͱ͢ɻAssistant with
Raspberry Pi ͱ͔
Google Assistant API ༗ޮԽ • ʮઃఆखॱυΩϡϝϯτʯʹ͋Δ ENABLE THE API ϘλϯΛΫϦοΫ͢Δ
OAuth Client ID ͷઃఆ - 1 • OAuth ಉҙը໘Λઃఆ͢Δ
OAuth Client ID ͷઃఆ - 2 • OAuth ΫϥΠΞϯτ ID
Λ࡞͢Δ
OAuth Client ID ͷઃఆ - 3 • OAuth ΫϥΠΞϯτ ID
Λ࡞͢Δ • μΠΞϩά͕දࣔ͞ΕͨΒ OK ΛΫϦοΫ
OAuth Client ID ͷઃఆ - 4 • ΫϥΠΞϯτ ID secret
JSON ϑΝΠϧΛμϯ ϩʔυ
OAuth Client ID ͷઃఆ - 5 • μϯϩʔυͨ͠ΫϥΠΞϯτ ID secret
JSON ϑΝΠϧΛ Raspberry Pi ʹసૹ $ scp [μϯϩʔυͨ͠JSONϑΝΠϧ] pi@[ϝϞ ͨ͠IPΞυϨε]:/home/pi/ password: [σϑΥϧτraspberry]
ΞΫςΟϏςΟίϯτϩʔϧͷ ઃఆ - 1 • ʮઃఆखॱυΩϡϝϯτʯͷԼͷํʹ͋Δ Activity Controls page ͷϦϯΫΛ։͘
ΞΫςΟϏςΟίϯτϩʔϧͷ ઃఆ - 2 • ҎԼͷ߲Λ༗ޮʹ͢Δ • ΣϒͱΞϓϦͷΞΫςΟϏςΟ • ϩέʔγϣϯཤྺ
• ใ • ԻΞΫςΟϏςΟ
Իͷઃఆͱ֬ೝ - 0 • RaspberryPi ʹ SSH ͰϩάΠϯ͢Δ
Իͷઃఆͱ֬ೝ - 1 • εϐʔΧʔͷςετ • Front, Left ͕܁Γฦ͠ฉ͑͜ΕOK •
Ի͕໐Βͳ͍ਓ࣍ͷεϥΠυ $ speaker-test -t wav
εϐʔΧʔ͔ΒԻ͕໐Βͳ͍ ਓ͜ΕΛΔ $ sudo raspi-config • ʲAdvanced OptionsʳΛબ • ʲAudioʳΛબ
• ʲForce 3.5mmʢ'headphone'ʣjackʳΛબ
Իͷઃఆͱ֬ೝ - 2 • ϚΠΫͷςετʢ5ඵؒԻʣ • Τϥʔ͕ग़ͳ͔ͬͨΒదʹ͠Όͬͯ 7 •
Τϥʔ͕ग़ͨΒ 3ʢ࣍ʣ $ arecord --format=S16_LE --duration=5 -- rate=16k --file-type=raw out.raw
Իͷઃఆͱ֬ೝ - 3 • ϚΠΫͷΧʔυ൪߸ͱσόΠε൪߸ΛௐΔ • ͜ΕͳΒΧʔυ൪߸ 1, σόΠε൪߸ 0
$ arecord -l **** List of CAPTURE Hardware Devices **** card 1: Device [USB PnP Sound Device], device 0: USB Audio [USB Audio]
Իͷઃఆͱ֬ೝ - 4 • εϐʔΧʔͷΧʔυ൪߸ͱσόΠε൪߸ΛௐΔ • ͜ΕͳΒΧʔυ൪߸ 0, σόΠε൪߸ 0
$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Իͷઃఆͱ֬ೝ - 5 • SSH ͷଓΛΔ • ઃఆϑΝΠϧΛ࡞Δ • ϑΝΠϧ໊
: .asoundrc • ༰: ࣍ͷεϥΠυ
pcm.!default { type asym capture.pcm "mic" playback.pcm "speaker" } pcm.mic
{ type plug slave { pcm "hw:[ϚΠΫͷΧʔυ൪߸],[ϚΠΫͷσόΠε൪߸]" } } pcm.speaker { type plug slave { pcm "hw:[εϐʔΧʔͷΧʔυ൪߸],[εϐʔΧʔͷσόΠε൪߸]" } }
pcm.!default { type asym capture.pcm "mic" playback.pcm "speaker" } pcm.mic
{ type plug slave { pcm "hw:1,0" } } pcm.speaker { type plug slave { pcm "hw:1,1" } } ྫʣ
Իͷઃఆͱ֬ೝ - 6 • Raspberry Pi ͷ /home/pi/ ʹஔ͘ •
2 ʹΔ $ scp .asoundrc pi@[ϝϞͨ͠IPΞυϨε]:/ home/pi/ password: [σϑΥϧτraspberry]
Իͷઃఆͱ֬ೝ - 7 • 2ͰԻͨ͠ԻΛ࠶ੜ • ͳ͘Ի͞Ε͍ͯΕ OK • Իྔͷௐઅ
$ aplay --format=S16_LE --rate=16k out.raw $ alsamixer
Python ͷઃఆ • Python virtual environment ΛͬͯγεςϜͷ Python ύοέʔδ͔Β SDK
ͱґଘ͢ΔΖΖΛ ִ • ݱঢ় Google Assistant ͷϥΠϒϥϦ Python 3.x ͰͷΈಈ͘ • Πϯετʔϧͷ్தͰฉ͔ΕͨΒ y ͰਐΜͰͩ͘͞ ͍
Python ͷઃఆ $ sudo apt-get update $ sudo apt-get install
python3-dev python3-venv $ python3 -m venv env $ env/bin/python -m pip install --upgrade pip setuptools $ source env/bin/activate
ϥΠϒϥϦͱαϯϓϧίʔυ Λऔͬͯ͘Δ (env) $ python -m pip install --upgrade google-assistant-library
αϯϓϧίʔυͷೝূ - 1 • ϒϥβΛ։͍ͯ Google ΞΧϯτʹϩάΠϯ͢ Δ • ΞΫςΟϏςΟίϯτϩʔϧͷઃఆΛͨͭ͠
• ೝূπʔϧΛΠϯετʔϧ͢Δ (env) $ python -m pip install --upgrade google-auth-oauthlib[tool]
αϯϓϧίʔυͷೝূ - 2 • ೝূπʔϧΛ࣮ߦ͢Δ • จࣈίʔυͷΤϥʔ͕ग़ͨΒ (env) $ google-oauthlib-tool
--client- secrets /home/pi/[લʹసૹ͓͍ͯͨ͠JSON] -- scope https://www.googleapis.com/auth/ assistant-sdk-prototype --save --headless (env) $ export LC_ALL=C.UTF-8 (env) $ export LANG=C.UTF-8
• ͱදࣔ͞ΕΔͷͰ … ෦ͷ URL Λίϐʔͯ͠ϒϥ βʹషΓ͚ͯදࣔ • ΞΧϯτΛબʢඞཁͳ߹ʣ͠ɺALLOW ʢڐ
ՄʣΛΫϦοΫ • දࣔ͞ΕΔίʔυΛίϐʔ͠ Please visit this URL to authorize this application: … Enter the authorization code: • ʹೖྗ
αϯϓϧίʔυͷ࣮ߦ • OK, google. What’s the weather in Tokyo •
ͱݴͬͯΈΑ͏ (env) $ google-assistant-demo