Mastering hardware protocols with ESP32 and Arduinos

person icon Markus Edenhauser

Mastering hardware protocols with ESP32 and Arduinos

Analysis and use of UART, I2C, OneWire, SPI and non-standard protocols in the Arduino environment.

updated on icon Updated on Dec, 2023

language icon Language - English

person icon Markus Edenhauser

architecture icon IT & Software,Hardware,Arduino

Lectures -75

Duration -6 hours


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Course Description

Welcome to the video course "Analysis and use of UART, I2C, OneWire, SPI and non-standard protocols in the Arduino/ESP environment"!

In this course we dive deep into the world of communication protocols and show you how to use them effectively with Arduino and ESP microcontrollers.

This course is ideal for Arduino and ESP enthusiasts who want to expand their understanding of communication protocols to create complex projects. Whether you are an experienced developer or a beginner, this course will provide you with valuable knowledge and practical applications.

This is not a theory course. We will jump straight into practical implementation and analyse and evaluate the protocols with a logic analyser.

In the course of the course, we will mainly deal with the most important communication protocols in the Arduino environment:

  • UART

  • I2C

  • OneWire

  • SPI

We will also look at non-standard protocols that are often used in special applications. You will learn how to identify, analyse and integrate these protocols into your Arduino and ESP projects.

After the introductory chapter, we can are able to handle bit operators so that we can do our own evaluations and libraries at bit level.

We will evaluate a light sensor (BH1750), DHT20 and DHT11 as well as an Ikea air quality sensor ourselves, without any external libraries.

In this video course we will use practical examples and demonstrations to teach you how to use these protocols. You will learn how to set up serial communication between different microcontrollers, transfer data, read sensors. We will also cover common challenges and troubleshooting that can occur when using these protocols.

By the end of the course you will have a solid understanding of UART, I2C, OneWire, SPI and non-standard protocols. You will be able to use these protocols safely and effectively in your Arduino and ESP projects and significantly expand your skills as a developer.

Sign up for my video course now and dive into the fascinating world of hardware protocols with microcontrollers!

Who this course is for:

  • Arduino and ESP hobbyists
  • Electronics and IoT enthusiasts
  • Programmers and developers: if you already have basic programming skills and want to expand your skills in the field of microcontroller programming
  • Anyone who enjoys developing with microcontrollers


What will you learn in this course:

  • What is I2C, UART, SPI and Onewire?

  • Analysis and discussion of data sheets

  • Understanding and using bit operations

  • Analysis of external libraries for understanding control

  • Evaluating sensors without external libraries

  • Protocol Reverse Engineering

  • Understand the different communication protocols such as UART, I2C, OneWire and SPI and explain how they work.

  • To analyse the advantages and disadvantages of the different protocols and select the appropriate protocols for specific use cases.

  • To successfully establish serial communication between Arduino and ESP microcontrollers and implement data transfers between them.

  • To recognise and analyse non-standard protocols and integrate them into own Arduino and ESP projects to meet specific


What are the prerequisites for this course?

  • Logic Analyzer for analysing the logs with PulseView (Windows, macOS & Linux)

  • Arduino or ESP32

  • First experience with programming Arduinos and ESPs. You should already know how to use the IDE.

  • Various sensors for evaluating protocols such as DHT20, DHT11, BH1750. More details in the parts list

  • Fun with the analysis of protocols

Mastering hardware protocols with ESP32 and Arduinos


Check out the detailed breakdown of what’s inside the course

5 Lectures
  • play icon Prerequisites for this course 01:38 01:38
  • play icon Practice before theory 01:56 01:56
  • play icon Differentiation from Wifi, Bluetooth ESP NOW and Co. 01:16 01:16
  • play icon Open VSC PlatformIO program in Arduino IDE 05:22 05:22
  • play icon Sketches, part list and e-book 00:39 00:39
Basics logic analyzer and bit operators
9 Lectures
PulseView Basics
10 Lectures
18 Lectures
8 Lectures
Non-standard protocols- DHT11 (DHT22)
5 Lectures
5 Lectures
13 Lectures
Closing chapter
2 Lectures

Instructor Details

Markus Edenhauser

Markus Edenhauser

Bringing IT and People together

I am Markus Edenhauser from Austria/Tyrol. I have professional experience in electrical engineering & finance industry as well as in the non-profit sector. My experiences range from IT auditor and trainer for it-topics, head of department for finance and technology to personnel management. Nowadays I develop funny things with microcontrollers for IoT devices #smarthome.

Education: Foreman in Electrical Engineering, Train the Trainer and Bachelor & Master degree in Business Informatics and Master degree in Coaching, Organizational & Human Resources Development.

I am looking forward to welcoming you in my courses.


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