How to use MQTT in Node-Red: basics, examples, tip & tricks
Автор: Csongor Varga
Загружено: 2023-01-07
Просмотров: 64410
Want to learn how to communicate with MQTT in Node-Red? Here you can learn how to connect to an MQTT broker, subscribe to topic, send data to the server, handle different data types, use dynamic subscription and other tips and tricks. By the end of this tutorial, you'll be able to send and subscribe to MQTT messages with ease!
MQTT is a powerful messaging platform that can be used to control devices and machines remotely. In this tutorial, we'll be using Node-Red to send and receive MQTT messages. By the end of this tutorial, you'll be able to use MQTT to control your Node-Red projects!
Sensor toolbox video: • Utility nodes for sensors and wifi devices...
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Chapter:
0:00 Intro
0:07 Chapters
1:56 Prerequisite
2:54 Connect to an MQTT broker
5:37 Subscribe to a topic
8:11 Sending MQTT messages
10:04 MQTT Explorer
11:36 Door sensor example
13:46 Timer switch example
14:56 Data types
20:45 Dynamic subscription
25:20 Toolbox examples
28:09 Recap
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