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ESP32 for IoT – Build Real World Projects (Udemy.com)

Design and implement IoT systems using ESP32, MQTT, HTTP, ThingSpeak & Alexa integration

4.5
175 reviews

Created by: Amit Rana

Last updated February 2026

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What you will learn

  • ESP32 SoC and Development Board
  • C Coding for ESP32
  • Why ESP32 is preferred for IoT
  • GPIO and Sensor interfacing with ESP32
  • IoT Protocols with ESP32 : HTTP and MQTT
  • Using Cloud platforms for IoT Projects
  • Complete Automation Project
  • Circuit Design Guidelines for integrating ESP32 in your project / product

How it compares

Against the other 295 rated Udemy courses in Arduino on CourseDuck:

  • Rating4.5 out of 5higher than 65% of them
  • Reviews175#145 of 296 by number of reviews
  • Length5.8 hourslonger than 54% of them
  • Last updatedFebruary 2026more recently than 88% of them

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Course Description

ESP32 for IoT – Build Real Projects with Alexa Integration

If you want to confidently build real Internet of Things (IoT) systems using ESP32, this course is designed for you.

By the end of this course, you will be able to:

  • Program ESP32 using the Arduino IDE 

  • Interface sensors, relays, and real-world devices 

  • Send data to cloud platforms like ThingSpeak and Adafruit IO 

  • Understand and implement HTTP and MQTT protocols 

  • Integrate ESP32 projects with Amazon Alexa using IFTTT 

  • Build complete IoT systems from scratch 

Why This Course?

Learning IoT with ESP32 can feel overwhelming.

There are many ESP32 variants, countless Arduino libraries, and scattered tutorials that rarely connect hardware, programming, and cloud platforms into one complete system.

This course removes that confusion.

Instead of random experiments, you will follow a structured roadmap — from ESP32 basics to full cloud-connected IoT projects with Alexa integration.


What You Will Learn

FOUNDATIONS

  • What is IoT and how real IoT systems work 

  • Choosing the right ESP32 board 

  • Setting up ESP32 in Arduino IDE 

  • Understanding ESP32 pinout and architecture 

  • Introduction to C programming for ESP32 


HARDWARE INTERFACING

  • LED and switch interfacing 

  • Transistor and relay circuits 

  • AC switching circuits 

  • Capacitive touch inputs 

  • DHT22 temperature and humidity sensor 


INTERNET OF THINGS

  • IoT architecture and real-world use cases 

  • Communication protocols used in IoT 

  • HTTP vs MQTT 


THINGSPEAK INTEGRATION

  • Creating a ThingSpeak account 

  • Sending data using HTTP requests 

  • Data visualization and analytics 


ADAFRUIT IO & MQTT

  • Understanding MQTT protocol 

  • Topics, feeds, and dashboards 

  • Building MQTT-based IoT systems 

  • Complete home automation project 


ALEXA INTEGRATION

  • Understanding IFTTT 

  • Connecting ESP32 with Adafruit IO 

  • Integrating Alexa using IFTTT 

  • Voice-controlled lamp project using custom Alexa commands 


What This Course Will Do For You

  • Give you strong practical skills in ESP32 programming 

  • Help you understand how real IoT systems are designed 

  • Enable you to build cloud-connected IoT projects 

  • Take you from beginner to confident ESP32 IoT developer 


Who This Course Is For

  • Complete beginners in IoT and ESP32 

  • Engineering students who want practical embedded skills 

  • Developers transitioning into IoT 

  • Makers who want structured project-based learning 

  • Professionals exploring IoT system development 


Instructor

Hi, I’m Amit Rana — engineer, programmer, and trainer.

With over 10 years of teaching experience and more than 40,000 students across 150+ countries, I specialize in breaking down complex embedded and IoT concepts into clear, structured lessons.

To help you make an informed decision, 50% of this course is available as free preview lectures.


30-Day Money Back Guarantee

Your enrollment is completely risk-free. If you feel the course does not meet your expectations, Udemy offers a 30-day full money-back guarantee.


Enroll today and start building real IoT systems with ESP32 and Alexa.
Read More Beginner Beginner Level product length iconTime: 5.8h

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Instructor Details

Amit Rana

Learn from a Technology Director Shaping the Future of Smart Buildings and IoT

Embark on a transformative learning journey with Amit Rana, a dynamic Technology Consulting Director at JLL , where he spearheads strategic technology initiatives and drives innovation within the realm of smart buildings, enterprise architecture, and the Internet of Things. With over 17 years immersed in the tech industry, Amit brings a wealth of practical knowledge and a visionary approach to his engaging Udemy courses. His daily work involves navigating the complexities of cutting-edge technologies and translating them into impactful business solutions for a global leader in real estate services.

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Reviews

4.5

175 ratings on Udemy

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By Carlos Assunção on 5/28/2026

A good course for beginners utilizing esp32. Course content are easy and instructions are clear. Though it would be ideal if the screen that displays the esp32 built was bigger. Thank you!

By Bruno Goycoolea on 9/22/2025

I liked it as lot because it explained a lot of things and i learnt a big amount of stuff here.

By Muhammad Lutfi on 7/14/2025

Good course for absolute beginners who feel lost about how to start with ESP32 and IoT. The instructor makes it clear this is just an entry point, not a full bootcamp or advanced training. It covers the basics well: GPIO, sensors, MQTT, and simple cloud usage, but stays high-level and doesn’t go deep into coding. Perfect to break the fear barrier and build your first project, but you’ll definitely need more learning and practice afterwards. Overall, it’s a clear and honest starting point. Just know it’s your first step, not the whole journey :)

By Bryan Ibrahim on 7/10/2025

Showed how to use real world technologies and APIs which is fundamental in the IOT world. Good beginner course, would recommend!

By Samarth Vyas on 6/25/2025

The course had what I wanted, I have now got interested in IoT and embedded systems due to this course, in which I practically implemented the ESP32, Adafuit, and Thingspeaks. Overall, a good course.

By Rishit Sinha on 6/9/2025

Was a great course. Got to learn a lot of new stuff about Iot and its protocols.

By Luca Carbe on 12/24/2024

The teacher is very well prepared on every topic he covers, I like the graphic and schematic explanations for the most complicated topics that becomes pretty easy this way, well done! The reason why I gave 4.5 stars and not 5 is because, despite I followed other ESP 32 / Arduino courses, the teacher goes really fast and sometimes I had the feeling that the lessons were not even connected to each other, especially in the first 2 modules. Can be improved by dedicating a couple lessons more to "soften" the switch to the next topic even if this makes the course a bit longer, but other than that very well done! Keep up the good work :)

By Varun Kavil on 2/21/2024

I started my embedded journey with Mr. Amit's advance Arduino course and haven't find such a nice explainer and a great teacher. Again starting ESP32 journey with him and looking to learn and experiment more.

By Joshua Keeler on 5/8/2023

This was a really interesting introduction to ESP32. I have many things that i want to experiment and try after watching this Tutorial. I also appreciate taking the time to show us the tools we could use to complete our projects. My main issue with the course is the audio. I am not certain what was going on. In some videos you are loud, some quite. Some i could understand you clearly and others it was almost like the audio was overlapping with something else resulting in you sounding muffled.

By Luiz F Grigio on 4/6/2022

It is very important to have this type of background, a kind of historical timeline to locate us on the current state of the technology.

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Overall Score : 90 / 100

ESP32 for IoT – Build Real World Projects
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  • Video Duration: icon 5.8h
  • Price: $59.99
  • Provider: icon Udemy
  • Updated: icon February 2026
  • Level: Beginner Beginner
  • Language: icon English
  • Certificate: icon Yes
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