interrupt_stoppuhr.py 文件源码

def main(switch=18, green=8, red=7):
    GPIO.setmode(GPIO.BCM)
    #GPIO.setup(switch, GPIO.IN, pull_up_down=GPIO.PUD_UP)
    GPIO.setup(switch, GPIO.IN)
    GPIO.setup(green, GPIO.OUT)
    GPIO.setup(red, GPIO.OUT)
    queue = Queue()
    GPIO.add_event_detect(switch, GPIO.BOTH, callback=partial(interrupt_Event, queue), bouncetime=150)

    running=True
    start=datetime.now()
    end=datetime.now()
    try:
        while running:
            sleep(0.1)
            if not queue.empty():
                pin, state = queue.get()
                if state == GPIO.LOW:
                    start = datetime.now()
                    GPIO.output(green, False)
                    GPIO.output(red, True)
                elif state == GPIO.HIGH:
                    print_duration(start, datetime.now())
                    GPIO.output(green, True)
                    GPIO.output(red, False)

    except (KeyboardInterrupt, SystemExit):
        running=False
        GPIO.cleanup()
        print("\nQuit\n")