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How to View Modbus RS485 Data on the Web using Arduino & IoT (Udemy.com)

Learn how to program an Arduino to read Modbus data and display it on a SmartPhone App and the Web using IoT Technology

4.6
135 reviews

Created by: Emile Ackbarali

Last updated May 2026

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What you will learn

  • Understand the Arduino Mega, Max485 module and ESP8266 Wifi module from a Hardware persepctive
  • Connect a Max485 module to an Anduino Mega
  • Connect an ESP8266 Wifi module to an Arduino Mega
  • Use the Arduino IDE to develop applications for the Arduino Mega
  • Write an Arduino Sketch application to connect to a Wifi Network
  • Write an Arduino Sketch application to implement a Modbus Master
  • Download and configure the Blynk smartphone app to display Modbus IoT data
  • Configure Thingspeak IoT service to display Modbus IoT Data

How it compares

Against the other 1,182 rated Udemy courses in IT & Software on CourseDuck:

  • Rating4.6 out of 5higher than 67% of them
  • Reviews135#929 of 1,183 by number of reviews
  • Length2.3 hoursshorter than 80% of them
  • Last updatedMay 2026more recently than 75% of them

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Course Description

If you work in the Automation Industry, you will know that automation equipment is very expensive. And many a time, especially for small applications, you simply cannot justify the use of very expensive equipment. 

This is where the Arduino comes in! 

The Arduino development board allows you to create very simple, but very powerful, Modbus master or slave devices through the use of relatively simple "C" programming. With the Arduino, you have full custom control over the program design allowing you to create very lean and very efficient devices for very specific purposes. 

Put simply, mastering Modbus on the Arduino is going to take your skill level and value in the Automation Industry to a whole new level. 

That is what this course is going to do. At the end of the course, you will know how to:

1. Choose the appropriate Arduino hardware.

2. Interconnect Arduino hardware with other add-on hardware.

3. Write "C" applications to implement Modbus master and slave functionality.

4. Use software and hardware to test each application that you write.

  1. All of the programs written in the course are freely downloadable and give you a perfect starting point for further development. At the end of the course, you will have the knowledge to create your own products, your own custom Modbus master and slave hardware.

Looking forward to seeing you on the inside!
Read More Intermediate Intermediate Level product length iconTime: 2.3h

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Instructor Details

Emile Ackbarali

          I have been working in the fields of Software Development, Software Systems Integration and Process Automation since 1996. In 2003, I stepped out on my own and started working for myself providing software development and systems integration services to small and medium businesses.       

          Teaching has always been a passion for me. I have taught at the tertiary level for many years on the subjects of programming, control systems as well as systems integration. In the last few years I found myself incorporating more and more videos into the curriculum with amazing results. 

          When I heard of uDemy I just could not help but sign up. With teaching in a classroom, you can reach only so many students, but with uDemy you can reach the world! I plan to publish and promote as many courses as I possibly can on the uDemy platform. 

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Reviews

4.6

135 ratings on Udemy

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By Gary L. Neely on 12/1/2025

Fast paced but clear. I enjoy Emile's course content because I can glean the information quickly.

By John on 6/27/2025

A very good course. Very explicit with all steps clearly explained. I have only set up part of the project which I am working on because I am still trying to find addresses for one of the sensors.

By Thomas Macedo on 4/24/2024

The explanations are clear and explained in a way that you can follow them step by step and reproduce them. If something unexpected happen you can contact Emile and ask for his support although you can also get tips from the other students, in the Q&A section. Emile does know what he is doing and has knowledge about what he is teaching !!! This is not my first course I have had from him. Congratulations !!!

By Jeff Mueller on 9/19/2021

Unlike many of the Udemy classes I've taken, where progress can move at a snails pace, this course was very good at skipping past basic details (e.g. ones the student should be able to handle easily on their own). My only gripe, and it's slight, is that the course encouraged the purchase of a dedicated modbus device. However, I managed to complete the material virtually, without purchasing the actual device. I plan on making a DIY modbus device using another Arduino device: this is the format I plan to use my RS-485 system in anyway. No biggie. So overall, this course is a "highly recommend" from me. Emile is a very good teacher, and I plan on taking more of his courses in the future. Nice job!

By Ferdinand Fajardo on 5/25/2020

Interesting, adequately presented, I learned a lot of things in Arduino interfacing with Modbus, IoT with Blynk and ThingSpeak. I will definitely recommend this course. I am confident now to implement the knowledge I gained.

By José Roberto de Souza Filho on 3/4/2020

Falta o uso de ferramenta de design como Tinkercad. Versões antigas.

By Alhassan Ahmed on 10/22/2019

As usual Emile has been up to the task of brilliantly imparting knowledge. Would've loved that Sir Emile showed us how one could link the modbus data to highly customisable website template. Awesome delivery nonetheless.

By Mvoverveld on 8/7/2019

I already knew that Emile is the real deal on Modbus. In this course I discovered that he knows about many other things and, most importantly, how to integrate different technologies. I highly recommend Emile's courses.

By Mauricio Maroto on 2/16/2019

Emile is a great instructor, teaching everything he knows into the course contents, whcih helps a lot. If you need to get data from a Modbus controller with an Arduino, this is the way to go!

By Jahirg on 11/2/2018

es una eleccion muy buena y acertada, Excelente. Muy buen instructor

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Overall Score : 92 / 100

How to View Modbus RS485 Data on the Web using Arduino & IoT
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  • Video Duration: icon 2.3h
  • Price: $59.99
  • Provider: icon Udemy
  • Updated: icon May 2026
  • Level: Intermediate Intermediate
  • Language: icon English
  • Certificate: icon Yes
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