30 lines
1.1 KiB
Python
30 lines
1.1 KiB
Python
import paho.mqtt.client as mqtt
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def on_connect(_client, userdata, flags, rc):
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print("Connected with result code " + str(rc))
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client.subscribe("test/topic")
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def on_message(_client, userdata, msg):
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print(msg.topic + " " + str(msg.payload))
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client = mqtt.Client()
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client.on_connect = on_connect
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client.on_message = on_message
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client.connect("localhost", 1883, 60)
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client.loop_forever()
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"""In this example, we create a new instance of the mqtt.Client class and set up the on_connect and on_message
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callback functions. The on_connect function is called when the client successfully connects to the broker,
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and the on_message function is called when a message is received on a subscribed topic.
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Then, we call the connect method to connect to the MQTT broker running on the local machine on port 1883, and set the
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keepalive value to 60 seconds.
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Finally, we call the loop_forever method to start the client and begin processing incoming messages. This method
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blocks the program execution and runs the client loop in a loop until the client is disconnected. (ChatGPT)"""
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