Python gpiozero 模块，MotionSensor() 实例源码

def __init__(self, sensor_pin=4):
        self.pir = MotionSensor(sensor_pin)
        self.led_pins = {}
        self.count = int(time.time())
        self.pir.when_motion = self.on_when_motion
        self.pir.when_no_motion = self.on_when_no_motion
        self.audio_file_index = 0
        self.led_color_index = 0
        for pin in LED_PINS:
            self.led_pins[pin] = LED(pin)
        print('Artwork is watching motions...')
        pause()

def main():
    try:
        counter = count(1)
        with MotionSensor(11) as pir:
            pir.when_motion = lambda: counting(counter)
            signal.pause()
    except KeyboardInterrupt:
        pass