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 secure smart lock system

In this practical, we will create a secure smart lock system using an Arduino board, an Radio-Frequency Identification (RFID) reader, and an electronic lock. The focus will be on implementing security best practices and risk management principles to ensure the privacy and safety of the system.

Materials

We can start off by taking a look at the following hardware and software required for this practical:

  • Keyestudio Arduino Super Starter Kit
  • MFRC522 RFID reader module
  • Electronic lock or solenoid
  • Jumper wires
  • AWS account

Part 1 – Setting up the Arduino board and RFID reader

We can now look at setting up our hardware to be then loaded with the software.

  1. Connect the Arduino board to your computer using a USB cable.
  2. Connect the MFRC522 RFID reader module to the Arduino board using the following wiring:
    • SDA to pin 10
    • SCK to pin 13
    • MOSI to pin 11
    • MISO to pin 12
    • IRQ to unconnected
    • GND...