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About the Book

"Wired Protocols in Embedded Systems" is a comprehensive guide to the fundamental principles and implementations of wired communication protocols in embedded systems. It covers the essential concepts of data transmission and protocol structures, providing a deep understanding of how different communication standards operate.

What’s Inside:

• Fundamentals of Wired Communication – Voltage levels, pull-up/pull-down resistors, output stages, and their impact on signal transmission.
• Intra-Board Protocols – In-depth coverage of 1-Wire, UART, SPI, I²C, and I³C, including their physical layers, timing, and data transfer mechanisms.
• External Communication Protocols – Insights into RS-485, CAN, USB, and Ethernet, explaining their key characteristics and use cases.

This book is designed for embedded engineers, firmware developers, and anyone interested in understanding the details of wired communication protocols. It will also be valuable for Arduino enthusiasts and hobbyists working with microcontrollers, sensors, and electronic modules that require reliable wired communication. Whether you are designing new embedded systems, integrating existing communication interfaces, or experimenting with hardware projects, Wired Protocols in Embedded Systems provides a solid foundation for making informed decisions.

This book is structured to guide you through the principles, implementations, and best practices of wired communication in embedded systems. By the end of this book, you will not only understand the technical details but also gain the confidence to apply this knowledge in your projects and professional work.

About the Author

Aliaksandr Kavalchuk

I`m a seasoned Firmware Engineer with over a decade of hands-on experience in embedded systems development, microcontroller programming, and low-level debugging. My professional journey spans full-cycle product development — from schematic design and PCB layout to firmware architecture and production-ready code — across diverse industries, including industrial automation, wearable technology, and data storage.

I have contributed to mission-critical products for companies such as Grundfos (industrial dosing pumps), KIOXIA (enterprise SSDs), and numerous IoT and consumer electronics startups. I`m proficient in C/C++, Python, and RTOS/Linux-based systems, with deep expertise in protocols like UART, SPI, I2C, and 1-Wire, as well as hardware debugging via JTAG, SWD, and logic analyzers.

Beyond my engineering work, I`m an active technical writer. My publications include the books “Wired Protocols in Embedded Systems” and “Diving into JTAG”, along with in-depth articles featured on platforms like Memfault, PlatformIO Labs, and Medium. My goal is to demystify complex technical concepts and explain them in a clear, practical manner.