Node-RED: IoT Development with ESP32, MQTT and ESP32 CAM

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.

This course is part of my 10-hour Node-RED IoT course and has the following content.

Installation

1. Why Docker?
2. Get a vServer
3. Docker Installation
4. Docker CLI using the example of Focalboard
5. Portainer
6. Mosquitto Broker
7. Run Mosquitto in the Container
8. ohmyz for more convenient terminal handling
9. Mosquitto Broker with PW authentication
10. Node-RED
11. Node-RED with authentication
12. InfluxDB
13. Grafana
14. MariaDB and create a DB via CLI
15. Adminer
16. Update Docker Container 
17. Traefik as reverse proxy for SSL access
18. SSL for Node-RED with Traefik Labels
19. Cronjobs for backup routines
20. Backup of Node-RED Flows via Cronjob

First overview of Node-RED

1. Intro
2. Separation of tasks of software and hardware
3. First overview of flow and nodes
4. Overwrite Payload with Function Node
5. Process JSON
6. Context, flow and global variables
7. So many nodes

Project

1. Intro
2. Wiring
3. CameraWebServer Example
4. Send Picture via MQTT
5. Display photos in Node-RED
6. Deepsleep and motion sensor as surveillance camera
7. Telegram Token and Node-RED implementation 
8. Save photo on server
9. Send photo via Telegram when motion detector is triggered

See you in class