MeshRadio – Embedded LoRa Mesh Engineering

MeshRadio – Embedded LoRa Mesh EngineeringFrom LoRa Chat to a Professional LoRa Mesh SystemLoRa enables impressive range with minimal power consumption.However, the step from a simple point-to-point radio link to a stable mesh network is far greater than many projects anticipate.This book documents the development of a custom embedded LoRa mesh system — transparent, practical, and consistently driven by engineering principles.Starting from a simple LoRa chat application, a complete mesh stack is built step by step: routing, control plane discipline, stable node roles, secure data transmission, and robust system architecture are not merely introduced, but systematically designed and justified.The focus is not on using ready-made frameworks, but on understanding the technical decisions that make stable wireless networks possible.Key TopicsDesign of a custom LoRa mesh protocolRouting with ETX evaluation and hold-down strategiesACK/Retry mechanisms for real-world radio conditionsControl plane discipline and network stabilityAES-CCM encryption and replay protectionNode roles and scalable mesh architecturesEmbedded implementation on ESP32-based platformsA Practical Engineering ApproachThis book is based on real software development.More than 40 structured source packages in the accompanying GitHub repository allow every development stage to be reproduced — from the first prototype to a stable mesh system.The result is not a theoretical example, but a solid foundation for your own projects.Who This Book Is ForThis book is intended for developers, makers, radio enthusiasts, and engineers who want not only to use LoRa, but to truly understand and extend it.It is equally suited for experimental projects, research, prototyping, and professional embedded development.PhilosophyMeshRadio is not an installation manual — it is an engineering guide.Its goal is to demonstrate how simple radio experiments can evolve into a systematically designed,rofessional-grade, stable LoRa mesh system.All sources at GitHub Read more