本文整理汇总了Python中Adafruit_IO.MQTTClient.loop方法的典型用法代码示例。如果您正苦于以下问题：Python MQTTClient.loop方法的具体用法？Python MQTTClient.loop怎么用？Python MQTTClient.loop使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Adafruit_IO.MQTTClient的用法示例。
在下文中一共展示了MQTTClient.loop方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: on_message
# 需要导入模块: from Adafruit_IO import MQTTClient [as 别名]
# 或者: from Adafruit_IO.MQTTClient import loop [as 别名]
def on_message(client, userdata, msg):
print(str(datetime.datetime.now()) + ": " + msg.topic + " " + str(msg.payload))
#
# Forward the data to Adafruit IO. Replace topic with a valid feed name
#
feedname=msg.topic.replace("/","_")
print("Publish to Adafruit feedname: " + feedname)
# Initialize the client that should connect to io.adafruit.com
adafruitClient = MQTTClient(ADAFRUIT_IO_USERNAME, ADAFRUIT_IO_KEY,service_port=1883)
adafruitClient.on_connect = adafruit_connected
adafruitClient.connect()
adafruitClient.loop()
adafruitClient.publish(feedname,msg.payload)示例2: test_subscribe_and_publish
# 需要导入模块: from Adafruit_IO import MQTTClient [as 别名]
# 或者: from Adafruit_IO.MQTTClient import loop [as 别名]
def test_subscribe_and_publish(self):
# Create MQTT test client.
client = MQTTClient(self.get_test_username(), self.get_test_key())
# Save all on_message handler responses.
messages = []
def on_message(mqtt_client, feed, payload):
self.assertEqual(mqtt_client, client)
messages.append((feed, payload))
client.on_message = on_message
# Connect and wait until on_connect event is fired.
client.connect()
self.wait_until_connected(client)
# Subscribe to changes on a feed.
client.subscribe('testfeed')
# Publish a message on the feed.
client.publish('testfeed', 42)
# Wait for message to be received or timeout.
start = time.time()
while len(messages) == 0 and (time.time() - start) < TIMEOUT_SEC:
client.loop()
time.sleep(0)
# Verify one update message with payload is received.
self.assertListEqual(messages, [('testfeed', '42')])示例3: print
# 需要导入模块: from Adafruit_IO import MQTTClient [as 别名]
# 或者: from Adafruit_IO.MQTTClient import loop [as 别名]
# Setup the callback functions defined above.
client.on_connect = connected
client.on_disconnect = disconnected
client.on_message = message
# Connect to the Adafruit IO server.
client.connect()
print('Ctrl-C to exit')
# The first option is to run a thread in the background so you can continue
# doing things in your program.
#client.loop_background()
#client.loop_blocking()
pinNum = 26
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM) #numbering scheme that corresponds to breakout board and pin layout
GPIO.setup(pinNum,GPIO.OUT) #replace pinNum with whatever pin you used, this sets up that pin as$
while True:
client.loop()
if var1 == 1:
print('Received <- ON\n')
elif var1 == 0:
print('Received <- OFF\n')
time.sleep(2)
#GPIO.output(pinNum,GPIO.HIGH) #set GPIO High
#GPIO.cleanup()