Скачать или смотреть 05-65 (Node-RED project) Variables (Global, Flow, Node)

In this video I talk about Node-RED variables. In Node-RED, variables have context (like they do in "regular" programming languages) and provide a way to share data among nodes.

This playlist contains free lectures from the course "Node-RED & ESP32 Make a Terrarium Controller Project".

This course will guide you through the construction of an automated control system. The deliverable is a Terrarium controller.

Along the way, you will learn a great deal about useful technologies such as the Node Red programming environment and MQTT.

This course is perfect for Makers who are familiar with the ESP32 and are interested in learning how to use it alongside Node-RED.

Node-RED is a lightweight graphical programming tool. You can use it to join a variety of hardware and software components and create applications such as the automated terrarium controller in this course.

Node-RED is used in a range of settings. Makers to create home automation applications and organisations use it to automate their factory floors, among many other possibilities.

The ESP32 is a powerful low-cost microcontroller with build-in Wifi that we can program with the familiar Arduino IDE. Its "call to fame" is that it makes it easy for anyone that is familiar with the Arduino to leverage their knowledge and create gadgets that need more memory and processing power than what the Arduino Uno can provide, in addition to Wifi and Bluetooth. All this at a lower price point.

Learn more: https://techexplorations.com/so/nodered/