Название: Building Wireless Sensor Networks with OpenThread: Developing CoAP applications for Thread networks with ZephyrАвтор: Koen Vervloesem
Издательство: Elektor Publication
Год: 2024
Страниц: 258
Язык: английский
Формат: pdf (true)
Размер: 24.9 MB
This book will guide you through the operation of Thread, the setup of a Thread network, and the creation of your own Zephyr-based OpenThread applications to use it.
Thread is a protocol for building efficient, secure and scalable wireless mesh networks for the Internet of Things (IoT), based on IPv6. OpenThread is an open-source implementation of the Thread protocol, originally developed by Google. It offers a comprehensive Application Programming Interface (API) that is both operating system and platform agnostic. OpenThread is the industry’s reference implementation and the go-to platform for professional Thread application developers.
This book uses OpenThread in conjunction with Zephyr, an open-source real-time operating system designed for use with resource-constrained devices. This allows you to develop Thread applications that work on various hardware platforms, without the need to delve into low-level details or to learn another API when switching hardware platforms.
You’ll acquire knowledge on:
• The capture of network packets on Thread networks using Wireshark and the nRF Sniffer for 802.15.4.
• Network simulation with the OpenThread Network Simulator.
• Connecting a Thread network to a non-Thread network using a Thread Border Router.
• The basics of Thread networking, including device roles and types, as well as the diverse types of unicast and multicast IPv6 addresses used in a Thread network.
• The mechanisms behind network discovery, DNS queries, NAT64, and multicast addresses.
• The process of joining a Thread network using network commissioning.
• CoAP servers and clients and their OpenThread API.
• Service registration and discovery.
• Securing CoAP messages with DTLS, using a pre-shared key or X.509 certificates.
• Investigating and optimizing a Thread device’s power consumption.
Once you‘ve set up a Thread network with some devices and tried connecting and disconnecting them, you’ll have gained a good insight into the functionality of a Thread network, including its self-healing capabilities. After you’ve experimented with all code examples in this book, you’ll also have gained useful programming experience using the OpenThread API and CoAP.
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