=== Preface === This book and its offshoots were prepared to provide a guide on how to use VREL NextGen Remote Access laboratories.\\ It contains a technical description of the hardware, a software guide, and hands-on labs with detailed scenarios for various levels of IoT students.\\ We (Authors) assume that a person willing to use VREL NextGen labs is already familiar with IoT on the engineering level: understands IoT concepts, knows IoT MCUs, sensors and actuators, understands communication principles and, most of all, has programming skills in C++ and Python. This book is instantly updated online to catch up with the latest developments in software libraries and tools, so its printed edition is considered a collection edition only. Please always refer to the latest online version on Dokuwiki. **Enjoy the power of experiencing real hardware touch, even if done remotely, from your favourite study place.**