Ejemplo de Programa de Arduino conectado por USB a Raspberry PI

arduino_demo.py

"""A demo of the Google CloudSpeech recognizer."""

import os

import aiy.audio
import aiy.cloudspeech
import aiy.voicehat

import serial, time

def main():
    arduino = serial.Serial("/dev/ttyACM0", 9600)
    aiy.i18n.set_language_code('es-ES')
    recognizer = aiy.cloudspeech.get_recognizer()
    recognizer.expect_phrase('enciende')
    recognizer.expect_phrase('apaga')
    recognizer.expect_phrase('blink')
    recognizer.expect_phrase('repite esto')

    button = aiy.voicehat.get_button()
    led = aiy.voicehat.get_led()
    aiy.audio.get_recorder().start()

    while True:
        print('Press the button and speak')
        button.wait_for_press()
        print('Listening...')
        text = recognizer.recognize()
        if text is None:
            print('Sorry, I did not hear you.')
        else:
            print('You said "', text, '"')
            if 'apaga' in text:
                led.set_state(aiy.voicehat.LED.OFF)
                time.sleep(2)
                arduino.write(b'b')
            elif 'enciende' in text:
                led.set_state(aiy.voicehat.LED.ON)
                time.sleep(2)
                arduino.write(b'a')
            elif 'blink' in text:
                led.set_state(aiy.voicehat.LED.BLINK)
                time.sleep(2)
                arduino.write(b'c')
            elif 'repite esto' in text:
                to_repeat = text.replace('repite esto', '', 1)
                aiy.audio.say(to_repeat)
            elif 'adiós' in text:
                arduino.close()
                os._exit(0)


if __name__ == '__main__':
    main()