GartenwasserGPIO.py 文件源码

def loop():
    """
    The main loop in which we mow the lawn.
    """
    print 'GPIO daemon started'
    while True:
        for PIN in PINS:
            index = [y[0] for y in PINS].index(PIN[0])
            pin = PINS[index][0]
            oldstate = PINS[index][1]
            newstate = GPIO.input(pin)
            if newstate != oldstate:
                mqttc.publish(MQTT_TOPIC_OUT % pin, payload=newstate, qos=MQTT_QOS, retain=MQTT_RETAIN)
                PINS[index][1] = newstate
        time.sleep(.8)


# Use the signal module to handle signals