Introduction to Node-RED

Name: Introduction to Node-RED
Rating: 4.3 (310 reviews)

Learn Node-RED for rapid prototyping and development of applications

Created byVenkatesh Varadachari, Lakshana Ramalingam

Last updated 7/2022

English

What you'll learn

This course will teach you a programming tool called Node-RED which is used for rapid application development.
You will understand the working of Node-RED.
You will learn how to interface various APIs, hardwares like Raspberry Pi and Arduino and cloud services with Node-RED.
You will be confident to build non-trivial projects and problem-solving applications using Node-RED.

Course content

4 sections • 30 lectures • 5h 8m total length

Introduction to the course7:24
Discover the fundamentals of Node-RED, deploy on different platforms, and master the Node-RED editor and key nodes while building non-trivial apps for IoT and beyond.
Why should you bother about Node-RED?11:36
Learn how Node-RED automates temperature monitoring with a DHT22 sensor on a Raspberry Pi and sends automated email alerts, emphasizing logic over coding.
Node-RED Update: What has changed?
What is Node-RED and why was it created?6:09
Node-RED is an open-source, visual programming tool that wires hardware, APIs, and online services with drag-and-drop nodes, enabling rapid prototyping and deployment across platforms.
How Node-RED works?7:47
Discover how Node-RED runs on Node.js, an event-driven, non-blocking runtime. Learn how npm and package.json manage modules and how nodes process inputs asynchronously for scalable, real-time input and output.
Quiz 1
Assignment 1

Critical Update1:50
Recent update on IBM Cloud platform0:06
Running Node-RED on the IBM Cloud15:41
Learn to run Node-RED on the IBM Cloud, create an account, and deploy a Node-RED boilerplate on a lite plan using Cloud Foundry and DevOps tools.
Getting to know the Node-RED User Interface21:38
Explore the Node-RED editor interface, including the header, palette, main workspace, and sidebar. Learn to connect nodes into flows, deploy changes, and inspect msg payload and complete msg object.
Running Node-RED locally on your Computer18:22
Learn how to install and run Node-RED locally on Windows or Mac, including installing Node.js, deploying Node-RED, starting the editor at localhost:1880, and securing with credential-based authentication.
Running Node-RED locally on your Raspberry Pi8:13
Discover why raspberry pi enhances node-red with gpio sensors and actuators, and learn to install, upgrade node.js, run node-red-start, and manage node-red locally through editor access and systemd services.
Running Node-RED locally on your Android9:36
Install and run Node-RED on Android via Termux, set up Node.js and termux-api, and explore using phone features with Node-RED palettes.
Quiz 2
Assignment 2

JS, RegExp, JSON and JSONata Primer17:36
Explore how Node-RED runs on Node.js to execute JavaScript and handle the msg object. Master JavaScript basics, RegExp, JSON, and JSONata for data querying and transformation.
Core Nodes - 114:39
Explore core nodes of node-red, including inject, debug, and function, and see how they become building blocks of a flow. Learn to manage payloads, timestamps, jsonata, and multiple outputs.
Core Nodes - 212:50
Explore core nodes in Node-RED—switch, change, template—plus function node features, using context variables (context, flow, global) to count triggers across flows and render outputs.
Additional Nodes20:13
Explore additional Node-RED nodes, including link nodes for cross-workspace connections, function and rbe nodes, and learn to use catch, status, mathjs integration, and delay for advanced flow control.
APIs in Node-RED - 118:38
Explore calling web APIs with Node-RED, using http request nodes to issue GET and POST requests, handle headers, authenticate with API keys, and interpret responses from services like tone analyzer.
APIs in Node-RED - 212:44
Build and secure a name formatter API in Node-RED, using HTTP in/out, GET and POST, with client-server setup, parameters, and basic authentication.
Storage Nodes16:01
Learn to use Node-RED storage nodes to persist data with Cloudant, SQLite, and cloud object storage, protecting against crashes and supporting sql and nosql databases.
Node-RED Dashboard7:51
Learn how to create and customize Node-RED dashboards to visualize live data with charts, gauges, notifications, and text, using dashboard nodes, tabs, and groups.
Twitter Sentiment Analysis7:44
Explore how to analyze tweets with Node-RED using the twitter node and sentiment node, employing the AFINN-165 wordlist for sentiment scores and routing results.
Quiz 3
Assignment 3

Using Openweathermap node5:17
Build a weather station in Node-RED using the openweathermap node to fetch temperature, humidity, pressure, wind, and more, with API keys, input and query nodes, and Cloudant database weather_data storage.
Migrate from Dark Sky API to Openweather API : Dark Sky discontinued
Using web API6:10
Learn to build a weather station by using the darksky.net web API, performing forecast and time machine requests, and parsing JSON to display current, hourly, and daily data.
Using DHT11 - RPi (Part 1)16:17
Connect the DHT11 to a Raspberry Pi and bring its temperature and humidity data into Node-RED using GPIO, rpi-gpio, and the Adafruit Python library, with exec nodes and MQTT.
Using DHT11 - RPi (Part 2)5:56
Complete the 3rd task by configuring DHT11 readings on Raspberry Pi with Node-RED, visualize data on Android dashboards and an LCD, and send data via MQTT.
Using DHT11 - Arduino (Part 1)12:56
Build a weather station by reading DHT11 data from an Arduino with Node-RED using Arduino nodes over serial, via Firmata, COM port, and 57600 baud, then visualize with dashboard.
Using DHT11 - Arduino (Part 2)3:03
Complete the second task of the DHT11 Arduino challenge by configuring MQTT and Termux API notifications, storing data with SQLite, and visualizing it on a dashboard.
A weather station on your Android!4:55
Build a weather station on android using node-red and the darksky node, with a 7 am audio weather news notification and a dashboard that shows current darksky data, and vibration.
Slack and Watson Integration17:01
Build a weather station by integrating Slack slash commands with Watson and Node-RED, sending weather data from OpenWeatherMap and using intents, entities, and dialog flows.
Assignment 4

Requirements

Basic knowledge of programming principles
Basic understanding of Electronics
Familiarity with JavaScript is an advantage
Familiarity in working with boards like Raspberry Pi and Arduino

Description

July 2022 Update

Updated Bill of Materials

June 2022 Update

Updated the Steps on deploying Node-RED on the IBM Cloud Platform

September 2021 Update

Included critical update document regarding changes in IBM cloud policies for free lite account.

September 2020 Update

In-depth Lecture on changes and updates to Node-RED (Version 1.1+)
Updated the Steps on deploying Node-RED on the IBM Cloud Platform
a. Node-RED App Configuration
b. Automatic Deployment Configuration
c. Delivery Pipeline Configuration
In-depth Lecture on Migrating from Dark Sky API to OpenWeather API for Node-RED
Updated the flows, to replace Dark Sky API with OpenWeather API

April 2020 Update

Included General Updates and changes in Node-RED
Included Documents regarding Updates to the Darksky API

Hello learners! Welcome to Makerdemy’s "Introduction to Node-RED" course. If you are looking for that special course that teaches you how to prototype and develop applications on the go, you have come to the right place. This is a beginner level course, still, prior knowledge of basic programming principles and electronic concepts is a must before taking this course.

Through an innovative pedagogy of mixing projects and concepts, this course will help you learn the WHY, HOW, and WHAT. To this end, this course is beyond a cookbook. You will always know WHY you are doing something. For the more curious learners, we have ample resources to dive in and continue your learning journey.

In just five hours, you will be confident enough to use Node-RED to prototype real-world applications. You will also develop an in-depth understanding of the Node-RED editor and learn to use the different Node-RED nodes present in the library. As a part of this course, you will be exposed to building flows absolutely based on logic which is how Node-RED works!

If you are a hobbyist, a student or an engineer with a basic understanding of electronics and programming, this is the course for you.

So, what are you waiting for?! Come, join me in this course. I am looking forward to being your instructor and guide you in tinkering with Node-RED.

Who this course is for:

Any developer or an engineer who wants to build applications on the go.
An IoT enthusiast who wants to build an IoT application.
Anyone who is interested in exploring the Node-RED.

Introduction to Node-RED

What you'll learn

Explore related topics

Course content