main.py 文件源码

def start():
    last = GPIO.input(button)
    while True:
        val = GPIO.input(button)
        GPIO.wait_for_edge(button, GPIO.FALLING) # we wait for the button to be pressed
        GPIO.output(lights[1], GPIO.HIGH)
        inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NORMAL, device)
        inp.setchannels(1)
        inp.setrate(16000)
        inp.setformat(alsaaudio.PCM_FORMAT_S16_LE)
        inp.setperiodsize(500)
        audio = ""
        while(GPIO.input(button)==0): # we keep recording while the button is pressed
            l, data = inp.read()
            if l:
                audio += data
        rf = open(path+'recording.wav', 'w')
        rf.write(audio)
        rf.close()
        inp = None
        alexa()