Node-Red: Iot Projects With Esp32, Mqtt And Docker

Smart Home and IoT Projects with step by step guide and all codes for download

What you'll learn

Node-RED Installation and Setup

Mosquitto MQTT Broker, Grafana and InfluxDB as well as MariaDB with Adminer

All microservices are also shown with the Docker variant.

Implementation of ESP32 projects with PlatformIO

Combination of ESP32, MQTT and Node-RED

Creating and programming your own function nodes with JavaScript

State of the Art ESP32 Programming with C++

After this course you will be able to implement your own IoT projects

Requirements

First experience with ESP32

Basic knowledge of C++ and JavaScript

First experience in the Linux world helpful

Be able to build simple circuits.

Description

For Makers and DIY enthusiasts who want to take their Internet of Things (IoT) projects into their own hands.Welcome to my online course on Node-RED, MQTT and ESP32! Designed specifically for Makers and DIY enthusiasts, this course gives you the opportunity to take your projects to the next level by combining Node-RED, MQTT and ESP32.Node-RED is a visual programming environment that allows projects to be created easily and intuitively without the need for in-depth programming knowledge. MQTT is a lightweight protocol for data transmission in IoT networks, with which end devices can be connected quickly and easily. The great advantage of MQTT is that transmission is possible in near real time. The ESP32 is a powerful microcontroller that is ideal for IoT projects thanks to its integrated WiFi and Bluetooth support.In this course you will learn how to use Node-RED to control and regulate your ESP32-based projects and exchange data via MQTT. You will learn how to build your own IoT network, collect data from sensors and visualise it in real time with actual programs like InfluxDB or Grafana. You will also learn how to monitor and control your projects via the internet and retrieve data from anywhere in the world.This course is ideal for Makers and DIY enthusiasts who want to take control of their projects and deepen their knowledge of the Internet of Things with MQTT and Node-RED. The combination of Node-RED, MQTT and ESP32 gives you the flexibility and power you need to turn your projects into reality.What you learn:Node-RED Installation and SetupMosquitto MQTT Broker, Grafana and InfluxDB as well as MariaDB with AdminerAll microservices are also shown with the Docker variant.Implementation of ESP32 projects with PlatformIOCombination of ESP32, MQTT and Node-REDCreating and programming your own function nodes with JavaScriptState of the Art ESP32 Programming with C++After this course you will be able to implement your own IoT projectsSo let's get started and learn how you can create your own IoT projects!Markus Edenhauser, MA MSc

Overview

Section 1: Introduction

Lecture 1 Promo

Lecture 2 About me

Lecture 3 Prerequisites

Lecture 4 Sketch, Code examples and flows

Lecture 5 The basic sketch - start of every project

Lecture 6 Making instead of lecturing

Lecture 7 Disclaimer

Section 2: Install all programmes as containers

Lecture 8 Intro

Lecture 9 Why Docker?

Lecture 10 Get a vServer

Lecture 11 Docker Installation

Lecture 12 Docker CLI using the example of Focalboard

Lecture 13 Portainer

Lecture 14 Mosquitto Broker

Lecture 15 Run Mosquitto in the Container

Lecture 16 ohmyz for more convenient terminal handling

Lecture 17 Mosquitto Broker with PW authentication

Lecture 18 Node-RED

Lecture 19 Node-RED with authentication

Lecture 20 InfluxDB

Lecture 21 Grafana

Lecture 22 MariaDB and create a DB via CLI

Lecture 23 Adminer

Lecture 24 Update Docker Container

Lecture 25 Traefik as reverse proxy for SSL access

Lecture 26 SSL for Node-RED with Traefik Labels

Lecture 27 Cronjobs for backup routines

Lecture 28 Backup of Node-RED Flows via Cronjob

Section 3: First overview of Node-RED

Lecture 29 Intro

Lecture 30 Separation of tasks of software and hardware

Lecture 31 First overview of flow and nodes

Lecture 32 Overwrite Payload with Function Node

Lecture 33 Process JSON

Lecture 34 Context, flow and global variables

Lecture 35 So many nodes

Section 4: MQTT Basics

Lecture 36 Intro

Lecture 37 MQTT terminology

Lecture 38 MQTT network using the example of Subscriber and Publisher

Lecture 39 MQTT Topic Levels and Wildcard with CLI examples

Lecture 40 Quality of Service QoS

Lecture 41 Retained Messages

Lecture 42 Birth Death und Last Will

Lecture 43 MQTT Best Practices

Lecture 44 MQTT Explorer

Section 5: Setup Node-RED

Lecture 45 Intro

Lecture 46 Broker settings and MQTT in & MQTT out

Lecture 47 Save data from Node-RED in InfluxDB

Lecture 48 First visualization of InfluxDB data in Grafana

Lecture 49 INSERT and SELECT with MariaDB

Section 6: Basic sketch with ESP32 for WIFI and MQTT

Lecture 50 Intro

Lecture 51 Recommendation VS Code with PlatformIO

Lecture 52 LED Blink without delay

Lecture 53 WiFi and MQTT Connection

Lecture 54 Switch LED with MQTT

Lecture 55 Send and receive JSON

Lecture 56 Transfer source code from VS Code for Arduino IDE

Section 7: Mini weather station

Lecture 57 Intro

Lecture 58 Wiring

Lecture 59 Basic Sketch

Lecture 60 BMP180 Temperature and barometric pressure

Lecture 61 BH1750 Light sensor

Lecture 62 Transmit sensor data to Node-RED

Lecture 63 Save data in InfluxDB

Lecture 64 Visualize data in Grafana

Lecture 65 Controlling a fan with MQTT

Lecture 66 Control fan with hysteresis

Lecture 67 Temperature values and hysteresis

Section 8: Visualize weather data on the e-ink display

Lecture 68 Intro

Lecture 69 Wiring

Lecture 70 PlatformIO and XIAO ESP32

Lecture 71 E-Ink Hello World

Lecture 72 Align text and adjust font

Lecture 73 Convert and embed graphics

Lecture 74 Display text and graphic together

Lecture 75 Weather data REST API

Lecture 76 Use REST APIs in Node-RED

Lecture 77 JSON editing

Lecture 78 Formatting date and other variables

Lecture 79 ESP32 requests new data

Lecture 80 Deepsleep

Lecture 81 Calculate power consumption

Lecture 82 3D printed housing

Section 9: Surveillance camera with ESP32-Cam incl. Machine-Learning Node

Lecture 83 Intro

Lecture 84 Wiring

Lecture 85 CameraWebServer Example

Lecture 86 Send Picture via MQTT

Lecture 87 Display photos in Node-RED

Lecture 88 Deepsleep and motion sensor as surveillance camera

Lecture 89 Telegram Token and Node-RED implementation

Lecture 90 Save photo on server

Lecture 91 Send photo via Telegram when motion detector is triggered

Section 10: Time recording witht RFID und TimeTagger

Lecture 92 Intro

Lecture 93 Wiring

Lecture 94 Read RFID ID

Lecture 95 Connection to Node-RED

Lecture 96 LED checkin checkout

Lecture 97 TimeTagger as Container with docker-compose

Lecture 98 TimeTagger Web API with HTTP Requests

Lecture 99 PUT Record via WEB API

Lecture 100 Using a Flatfile for saving checkin on server

Lecture 101 Send Record to WEB API

Section 11: Time-controlled plant watering with water level monitoring

Lecture 102 Intro

Lecture 103 Wiring

Lecture 104 Flow Chart

Lecture 105 Basic structure with enums

Lecture 106 MQTT communication with Node-RED and ESP32

Lecture 107 Globals.h for global variables

Lecture 108 Switch on relay via MQTT for 3 seconds

Lecture 109 Evaluate and transmit fill level with ultrasound

Lecture 110 Create MariaDB table and use database node

Lecture 111 Store water level information in MariaDB

Lecture 112 Time interval for watering

Lecture 113 Monitor water tank level

Lecture 114 DeepSleep to save power

Lecture 115 Visualization of data on Dashboard

Section 12: Smart plugs and relays

Lecture 116 Intro

Lecture 117 Flashing Tasmota

Lecture 118 Configure Tasmota

Lecture 119 Switching Tasmota sockets with Node-Red

Lecture 120 Read sensor data from Smart Plug

Lecture 121 Save energy data in InfluxDB and visualize in Grafana

Lecture 122 Shelly 1PM Setup

Lecture 123 Shelly and Node-RED via RPC

Lecture 124 Toggle Shelly with Node-RED

Lecture 125 Relay temperature monitoring with telegram notification

Section 13: Mini IoT Button with 100 days battery life

Lecture 126 Intro

Lecture 127 ESP8266 vs ESP32 XIAO

Lecture 128 IoTButton Sketch and Toggle Node

Lecture 129 3D print and Calculation Battery Consumption

Section 14: Internet Radio

Lecture 130 Intro

Lecture 131 Wiring

Lecture 132 Include Libraries

Lecture 133 Internet radio stations

Lecture 134 Control Radio via MQTT

Lecture 135 Setting the alarm time and Dashboard

Section 15: MQTT with TLS

Lecture 136 Intro

Lecture 137 DynDNS and Certbot

Lecture 138 Mount Cert files in Docker

Lecture 139 mosquitto.conf and NodeRED Broker Settings

Lecture 140 ESP32 and MQTT with TLS

Lecture 141 Analyze MQTT Traffic with Wireshark

Section 16: Conclusion

Lecture 142 Summary of all learnings

Lecture 143 Thank you and see you soon

Anyone with an interest in IoT development,All Makers who want to realise their projects themselves,Developers who are interested in being able to control their own microcontrollers via a dashboard,Anyone who wants to understand, apply and write their own practical projects with microcontrollers.