script to play with google's AIY voice device

voice_app.py

# Copyright 2017 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


import aiy.audio
import aiy.cloudspeech
import aiy.voicehat
import aiy.tts
import requests
import os

def main():
    CAMERA_LIGHT_ON =os.environ['CAMERA_LIGHT_ON']
    print(CAMERA_LIGHT_ON)
    CAMERA_LIGHT_OFF = os.environ['CAMERA_LIGHT_OFF']
    print(CAMERA_LIGHT_OFF)
    
    aiy.audio.say("ok, reloading from gist", volume=25, pitch=55)
    button = aiy.voicehat.get_button()
    led = aiy.voicehat.get_led()
    aiy.audio.get_recorder().start()
    recognizer = aiy.cloudspeech.get_recognizer()
    recognizer.expect_phrase('goodbye')
    aiy.audio.play_wave("./yo.wav")

    while True:
        print('Press the button and speak')
        aiy.audio.say("Yo-bot is ready.  Press the button and speak.", volume=15, pitch=50)
        button.wait_for_press()
        led.set_state(aiy.voicehat.LED.ON)
        print('Listening...')
        text = recognizer.recognize()
        led.set_state(aiy.voicehat.LED.BLINK)
        if not text:
            led.set_state(aiy.voicehat.LED.OFF)        
            aiy.audio.play_wave("./umm.wav")
        elif text.lower().strip() == 'light up the sky' or text.lower().strip() == 'zoom light on':
            r = requests.get(CAMERA_LIGHT_ON)
            print(r.text)
            aiy.audio.say("yo-bot turns the light on", volume=25, pitch=60)
        elif text.lower().strip() == 'leave it all behind' or text.lower().strip() == 'zoom light off':
            r = requests.get(CAMERA_LIGHT_OFF)
            print(r.text)
            aiy.audio.say("yo-bot turns the light off", volume=25, pitch=60)
        elif text.lower().strip() == 'goodbye':
            led.set_state(aiy.voicehat.LED.OFF)        
            aiy.audio.say("yo-bot is turning off now", volume=25, pitch=45)
            print(text)
            break
        else:
            led.set_state(aiy.voicehat.LED.OFF)
            aiy.audio.play_wave("./yo.wav")
            aiy.audio.say(text, volume=25, pitch=60)


if __name__ == '__main__':
    main()