Files
picar/Messaging/clientEx.py
2018-11-28 08:44:00 +10:30

43 lines
1.2 KiB
Python

# -*- coding: utf-8 -*-
"""
Created on Tue Nov 27 14:17:45 2018
@author: pivatom
"""
import paho.mqtt.client as mqtt
# These are just the defaults.
mqttc = mqtt.Client(client_id="", clean_session=True, userdata=None, protocol=MQTTv311, transport="tcp")
mqttc.tls_set(ca_certs=None, certfile=None, keyfile=None, cert_reqs=ssl.CERT_REQUIRED,
tls_version=ssl.PROTOCOL_TLS, ciphers=None)
# Use port 8883 for SSL
# Host is just an ip address or hostname of the broker.
mqttc.connect(host, port=1883, keepalive=60, bind_address="")
# Topic is a string of the topic to publish to.
mqttc.publish(topic, payload=None, qos=0, retain=False)
# Just subscribe to a topic.
mqttc.subscribe(topic, qos=0)
def on_message(client, userdata, message):
'''
Do something with the message. Choose based on what the topic is.
Can also just assign different callback functions for different topics
using message_callback_add(sub, callback)
'''
print("Received message '" + str(message.payload) + "' on topic '"
+ message.topic + "' with QoS " + str(message.qos))
mqttc.on_message = on_message
# Or for specific callback:
# Can use foo/# for all subtopics of foo/, or
# +/bar for all topics that include bar.
mqttc.message_callback_add(sub, on_message)