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 cloud proximity detector

In this practical, we will create a unique cloud proximity detector using the Keyestudio Arduino Super Starter Kit, which integrates with AWS IoT services. The project will use a combination of sensors, actuators, and cloud services. By the end of this practical, you will understand the benefits of utilizing AWS for IoT networks and learn how to optimize costs, resiliency, and low latency in your deployments.

Assembling the circuit

First, we will assemble the hardware of the project:

  1. Connect the NodeMCU ESP-32S, IR proximity sensor, piezo buzzer, and WS2812 RGB LED strip as shown here:
Figure 7.7 – Wire-up diagram of the hardware of the project

Figure 7.7 – Wire-up diagram of the hardware of the project

  1. Connect the IR proximity sensor to the breadboard. Connect the VCC pin to the 3.3V output on the NodeMCU, the GND pin to GND, and the data pin to GPIO 36 (also known as VP or ADC1_CH0) on the NodeMCU.
  2. Connect the RGB LED strip...