raspi.py 文件源码

def _configure_input(self, name, configuration):
    pin = configuration['pin']

    self.log().debug('Pin %d -> %s' % (pin, name))

    if configuration['pull_up_down'] == 'up':
      pull_up_or_down = GPIO.PUD_UP
    else:
      pull_up_or_down = GPIO.PUD_DOWN

    if 'debounce' in configuration:
      debounce = configuration['debounce']
    else:
      debounce = 0

    GPIO.setup(pin, GPIO.IN, pull_up_down = pull_up_or_down)
    GPIO.add_event_detect(pin, GPIO.BOTH, callback = self._channel_changed, bouncetime = debounce)