如何在Google智能助理SDK上连接Raspberry Pi上的按钮

Question

Google智能助理SDK示例要求用户在与Google智能助理交谈之前点击输入。

我想知道有没有办法将按钮连接到RPI GPIO引脚之一，并让它触发G.Assistant。

while True: 
     if wait_for_user_trigger: 
      click.pause(info='Press Enter to send a new request...') 
     continue_conversation = assistant.converse() 
     # wait for user trigger if there is no follow-up turn in 
     # the conversation. 
     wait_for_user_trigger = not continue_conversation 

     # If we only want one conversation, break. 
     if once and (not continue_conversation): 
      break 

我想这将是我做改变连接GPIO库的区域。

我应该如何去实施它？我是Python和Raspberry Pi的新手。我确实有Java背景和自动化历史。

Answer 1

这可能帮助：

... 
import os.path 
import RPi.GPIO as GPIO 
... 
CLOSE_MICROPHONE = embbeded_assistant_pb2.ConverseResult.CLOSE_MICROPHONE 

GPIO.setmode(GPIO.BMC) 
GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP) 
GPIO.setup(23, GPIO.OUT) 
... 
while True: 
    if wait_for_user_trigger: 
     input_state = GPIO.input(18) 
     if input_state == True: 
      GPIO.output(23, False) 
      continue 
     else: 
      GPIO.output(23, True) 
      pass 
     #click.pause(info='Press Enter to send a new request...') 

... 

参考：https://youtu.be/ImrN404aDcc