MQTT Basics

Mosquitto MQTT broker provides a fairly robust environment that is suitable for testing and to a great extent for production as well

Follow these instructinos to install mosquitto on macOS

Here is a quick setup to test

Subscribe to a topic and watch for messages

mosquitto_sub -v -t "myiottopic/test" -h test.mosquitto.org | ts

Publish to this topic

mosquitto_sub -t "myiottopic/test" -h test.mosquitto.org -m '{"key":"msg", "value":"hello world"}'

import paho.mqtt.client as mqtt
.
.
client = mqtt.Client()
.
.
client.connect(broker_address, broker_port, 60)
client.publish(topic, message, qos=1)

Google Sites

Report abuse