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How to Program an Arduino as a Modbus TCP/IP Client & Server (Udemy.com)

Learn how to create your own Modbus TCP/IP Client and Server Device using the Arduino Uno Development System

4.5
358 reviews

Created by: Emile Ackbarali

Last updated May 2026

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What you will learn

  • Understand the Arduino Uno and Ethernet Shield from a Hardware persepctive
  • Connect an Arduino Ethernet Shield to an Arduino Uno
  • Connect an Arduino Uno to a Hitachi HD44780 LCD display
  • Use the Arduino IDE to develop applications for the Arduino Uno
  • Write an Arduino Sketch application to display messages on an LCD display
  • Write an Arduino Sketch application to implement a Modbus Client
  • Test an Arduino Modbus master using the Modsim32 Modbus server simulator
  • Write an Arduino Sketch application to implement a Modbus Server
  • Test an Arduino Modbus slave using the Modscan32 Modbus client application

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Quality Score

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Overall Score : 90 / 100

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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 client or server 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.
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 client and server hardware.
Looking forward to seeing you on the inside!Who this course is for:
  • Electrical Engineers
  • Electrical Technicians
  • Electrical Tech or Engineering Students
  • Process Control Technicians and Engineers
  • Process Automation Engineers
  • Programmers working in the Process Automation field
Read More Intermediate Intermediate Level product length iconTime: 2.2h

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Instructor Details

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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.
I am also associated with a great company called Mora Systems Limited that under the leadership of it's Managing Director has produced innovative and outstanding products and services in the fields of GIS and Cellular based SCADA.
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

4.5

358 ratings on Udemy

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By Jongwon Im on 10/3/2020

Thank you for your clear and good lecture.

By Carlos Adrian Sosa on 9/17/2020

Si. Fue una buena eleccion. Hubiera esperado mayor conocimiento y mayor aporte por parte del instructor, por que luego por necesidad tuve que aprender cosas que estaban en el mismo tema, por mi mismo.

By Francis Poelmans on 9/16/2020

De cursus voldeed volledig aan mijn verwachting.

By Nilesh Bhange on 8/26/2020

The course was nice but I found it very basic. More explanation on how the library's were built could be better. A basic explanation on Ethernet, mod bus was expected.

By Irving Alain Gonzlez Landa on 7/21/2020

Estuvo ms que bien. super bien explicado

By Mark on 6/25/2020

yes exactly what I wanted

By Hector Ramos on 5/13/2020

An excellent course, fast and direct, with the necessary resources/info in every lesson, a cheap way to understand Modbus' functionality. Widely Recommended.

By Carlo Falardo on 5/2/2020

Yes its very helpful for me to understand more about modbus

By Pawel Zawadzki on 4/24/2020

Good course, this was what I was expecting.

By Bill Tackett on 4/21/2020

The instructor was well versed and spoken.
I have not been able to find this information anywhere else,
you answered all of my questions and gave me the knowledge I needed.

By R Magesh on 4/15/2020

Very good narration and easy to understand. Thank you

By pathompol kulthai on 4/15/2020

Good course. You can applied to your project.

Showing 12 of 129 reviews

How to Program an Arduino as a Modbus TCP/IP Client & Server
Visit course on Udemy Write a review
  • Video Duration: icon 2.2h
  • Price: $44.99
  • Provider: icon Udemy
  • Updated: icon May 2026
  • Level: Intermediate Intermediate
  • Language: icon English
  • Certificate: icon Yes
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