Internet of Things: MQTT

在本课程中，我将介绍允许您的设备通过 MQTT 协议相互交换消息的要点。

首先给大家介绍一下 MQTT 协议本身及其运行的基本原理，我会解释什么是 MQTT 代理。然后我们将下载并安装最流行的 Windows MQTT mosquitto broker，并学习如何配置它。首先，我们将在您的机器上进行，然后通过本地网络进行。接下来，我们将为 ESP32 编写一个程序，允许您与 mosquitto broker 通信，通过 WiFi 连接并测试该程序如何与蚊子 broker 一起使用。之后，我们将在 Raspberry Pi 上安装 linux 下的 mosquitto 并将 ESP32 连接到它。我们还将编写一个通过蚊子 API 工作的客户端，您可以将其嵌入到您的程序中。

然后我们将学习如何使用最流行的物联网云服务亚马逊网络服务物联网核心。您将学习如何将您的设备连接到它并为它们创建证书和策略。接下来，我们将为 ESP32 修改我们的程序，以便它可以与 Amazon Web Services IoT Core 一起使用。然后，我将向您展示如何将一个证书和策略用于多个设备。

Mosquitto broker , Amazon Web Services IoT core, ESP32, Raspberry Pi

MP4 | Video: h264, 1280×720 | Audio: AAC, 44.1 KHz
Language: English | Size: 894 MB | Duration: 1h 7m

What you’ll learn

• You will learn what mqtt is and how it works.
• You will be able to install and configure the mosquito mqtt broker on Windows PC and Raspberry Pi.
• We will write a program for ESP32 that works with mosquito broker.
• You will learn how to work with Amazon Web Services IoT core, most popular mqtt cloud service.
• We will modify the previously written program for ESP32 so that your devices can work with AVS IoT core.

Requirements

• Arduino (beginner)
• C/C++ (beginner)

Description

In this course, I will look at the main points that allow your devices to exchange messages with each other over the MQTT protocol.

First, I will tell you about the MQTT protocol itself and the basic principles of its operation, I will explain what MQTT broker is. Then we will download and install the most popular MQTT mosquito broker for Windows and learn how to configure it. First we will do it on your machine, and then through the local network. Next, we will write a program for ESP32 that allows you to communicate with mosquitto broker, connect it via WiFi and test how the program works with mosquito broker. After that, we will install the mosquitto under linux on Raspberry Pi and connect ESP32 to it. We will also write a client that works through mosquito API, which you can embed into your programs.

And then we will learn how to work with the most popular cloud service for the Internet of Things Amazon Web Services IoT core. You will learn how to connect your devices to it and create a certificate and a policy for them. Next, we will modify our program for ESP32 so that it can work with the Amazon Web Services IoT Core. Then I’ll show you how you can use one certificate and policy for multiple devices.

Who this course is for

This course could be suitable for electronics engineers or amateurs interested in the Internet of Things.