Book Image

Internet of Things from Scratch

By : Renaldi Gondosubroto
Book Image

Internet of Things from Scratch

By: Renaldi Gondosubroto

Overview of this book

Develop the skills essential for building Internet of Things solutions with this indispensable guide. In an era where industries heavily rely on IoT, this book will quickly familiarize you with its foundations, widespread use, implementation guided by best practices, and the crucial technologies that allow it to work effectively. Starting with the use of IoT in real-life scenarios, this book offers comprehensive insights into basic IoT hardware, protocols, and technologies. You’ll then learn about architecting and implementing solutions such as wireless sensor networks, cloud computing with AWS, and crucial security considerations. You’ll understand how these systems are operated and monitored over time and work with simple to complex, industry-grade systems, adhering to best practices. In later chapters, you’ll be apprised of future IoT trends and strategies to manage the risks and opportunities that come with them. You’ll also get to grips with a diverse set of tools, including hardware such as ESP32 and Raspberry Pi, and software such as Mosquitto and ChatGPT for generative AI capabilities. By the end of this IoT book, you’ll be able to independently build and design complex, industry-standard solutions fully aligned with best practices.
Table of Contents (22 chapters)
1
Part 1: Getting Started with the Internet of Things
6
Part 2: Developing and Optimizing IoT Systems for Smart Environments
11
Part 3: Operating, Maintaining, and Securing IoT Networks
16
Part 4: Delving into Complex Systems and the Future of IoT

Practical – creating a Raspberry Pi Wi-Fi extender

In this chapter’s practical, we will create a Wi-Fi extender based on a Raspberry Pi. As part of this, we will be using the dnsmasq package, which will act as both the Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) server for the connections that we will need. DNS servers translate domain names into IP addresses, while DHCP servers automatically assign IP addresses and other network configuration parameters to devices on a network. We will also use the hostapd package, which will help set up one of the Wi-Fi modules as an access point.

Ensure that you have an active Wi-Fi router to connect to, alongside an Ethernet device we will be intending to bridge the Wi-Fi connection to.

You will be able to find any code segments used also located on GitHub, within the corresponding filename, in the raspberry_pi_wifi_extender subdirectory of Chapter02 at https://github.com/PacktPublishing/IoT-Made...