Networking Chapter 13 The Internet Things Iot Glance Instructors

Guide to Networking Essentials, Eighth Edition 13-1

Chapter 13

The Internet of Things (IoT)

At a Glance

Instructor’s Manual Table of Contents

• Overview

• Objectives

• Teaching Tips

• Quick Quizzes

• Class Discussion Topics

• Additional Projects

• Additional Resources

• Key Terms

• Technical Notes for Hands-On Projects

• Using Virtualization for Hands-On Projects

Guide to Networking Essentials, Eighth Edition 13-2

Lecture Notes

Overview

Chapter 13 will introduce students to the Internet of Things (IoT) and some

technologies that are used in this new computing model. They will also learn about

some of the use cases for IoT and examine some of the devices used to implement

networked “things. Students will also be introduced to DIY IoT devices and how to get

started with their own IoT projects.

Objectives

• Define the Internet of Things and list use cases

• Describe IoT network technologies

• Discuss a variety of IoT devices

• Work with DIY IoT devices

Teaching Tips

Introduction to the Internet of Things

1. Introduce students to the concept of the Internet of Things (IoT). Explain that IoT is the

2. Discuss some well-known examples of IoT that are already in use in many homes and

business today.

IoT Use Cases

1. Mention that this section takes a look at how IoT is affecting transportation, energy,

manufacturing, and public safety.

3. Explain that self-driving cars are considered to be a component of the IoT. Point out

that they are filled with sensors, communication devices, and microprocessors.

4. Discuss some of the benefits of IoT in transportation. Mention that the benefits are not

5. Explain that IoT is playing a part in not only energy consumption, but it is also being

7. Introduce students to how IoT devices can be used to help victims in emergency

situations. Mention that IoT can even be used to detect chemicals, explosives, and drugs

near the scene of an accident or disaster.

Teaching

Tip

With the rise in IoT devices, security breaches are a concern as well. Nearly half

of the US businesses reported that their IoT data was compromised. A strategy

consulting group Altman Vilandrie & Company surveyed about 400 IT decision

makers across 19 industries, it was found that about half of those companies

experienced an IoT related data breach.

IoT Technologies

1. Explain that the goals of most IoT technologies are to collect, process, analyze, react to,

2. Discuss how IoT devices usually collect data from the environment around the device

through the use of the following sensors:

a. Audio sensors

b. Proximity sensors

c. Light sensors

3. Introduce students to two places that IoT data processing occurs in:

a. The front end, where the sensors that collect the data are located; often referred

4. Explain to students that edge processing is done by a microprocessor or microcontroller.

Further explain that microprocessors used in IoT are usually reserved for computing-

Guide to Networking Essentials, Eighth Edition 13-5

Teaching

Tip

RFID tags are essential components of most industrial IoT systems. As demand

for such industrial systems continues to grow, so will the market for RFID

technologies.

Quick Quiz 1

1. True or False: Local weather sensors can warn mining operators of impending

lightning, high winds, or possible flooding conditions.

2. Which of the following sensors are used as a type of on/off switch when a certain level

of light intensity is reached?

a. photodiodes

b. proximity sensors

c. infrared sensors

d. photoresistors

3. What types of sensors can be used to measure or detect some property of living things?

a. Global positioning system (GPS)

b. Biometric sensors

c. Temperature sensors

d. Occupancy sensors

4. Which device is specifically designed to work with sensors and I/O devices and are the

processing device of choice for edge computing in IoT applications?

5. Which of the following IoT networking technologies uses IPv6 at the Network layer?

a. Bluetooth

b. Zigbee

c. 6LoWPAN

d. LoRaWAN

Commercial and Industrial IoT Devices

1. Mention to students that while home automation is a current driver of IoT, industrial

IoT products will likely have a greater impact on society as a whole. Point out that

Guide to Networking Essentials, Eighth Edition 13-6

A Sampler of Home Automation IoT Devices

1. Introduce the following popular IoT devices used in the home and office:

a. Smart home assistants

b. Smart thermostats

c. Smart vents

Industrial IoT Devices

1. Point out to students that the use of IoT in industry has been dubbed Industry 4.0.

2. Explain to students that some of the same technologies are used in both industry and

3. Discuss the following lists of devices that might be found in industrial applications that

aren’t as common as those in home automation:

a. Actuators

b. Electric motor

DIY IoT

1. Discuss some examples of turning “things” into IoT devices. Point out that just about

Getting Started with IoT

1. Introduce students to some of the vendors providing inexpensive components to DIY

IoT hobbyists:

Guide to Networking Essentials, Eighth Edition 13-7

c. Tinkercad from Autodesk

Teaching

Tip

To watch a video on how Tinkercad from Autodesk works, please visit:

www.tinkercad.com

2. Discuss the list of items that a DIY enthusiast will likely need to get started with IoT. If

possible, locate some of the following to use in your discussion :

a. Microcontroller development board

b. Solderless breadboard

c. Sensors

Tools for IoT

1. Demonstrate using as many of the following tools as possible:

a. Wire cutters

IoT Software Development

1. Explain to students that most microcontroller development boards have an associated

2. Point out that this chapter focuses on the Arduino IDE, which is designed specifically

for writing programs for Arduino and Arduino-compatible development boards.

3. Explain that programs written in the Arduino IDE use the C and C++ languages. Be

4. Discuss the following structure that all Arduino programs (called sketches) use:

5. Explain to students that most microcontrollers don’t run a true operating system. They

6. Introduce students to the Arduino Uno, which is one of the most popular Arduino

development boards.

7. Point out that there are development boards available that support Python and that these

8. Introduce students to the Raspberry Pi, which is a full-featured personal computer on a

single board the size of a credit card. Point out that it is best suited for running

Quick Quiz 2

1. Name an example of a popular smart home assistant.

2. True or False: Smart light bulbs use Z-Wave technology to provide the full spectrum of

colors.

3. What name has been given to the use of IoT technologies in industry?

4. Which of the following is a tightly wound coil of wire that creates a strong magnetic

field when electricity is applied?

a. IoT gateway

b. actuator

c. stepper motor

d. solenoid

5. Raspberry Pi is basically a PC on a board the size of a credit card. Raspberry Pi is an

example of which of the following?

a. solderless breadboard

b. power supply

c. single-board computer (SBC)

d. integrated development environment (IDE)

Guide to Networking Essentials, Eighth Edition 13-9

Class Discussion Topics

1. Many possible applications for IoT were discussed in this chapter. Use your

2. What do you see as the top three most important applications for IoT? Do you have

concerns about IoT technologies in so many different areas that could affect our

Additional Projects

1. Go to https://www.instructables.com/howto/arduino/ to see a list of IoT projects you

can do with an Arduino. The project there range from very simple to very advanced. If

you have access to resources to complete an actual physical project, find a project you

Additional Resources

1. IoT Revolution: 5 Ways the Internet of Things Will Change Transportation

3. Industry 4.0: The Future of Manufacturing

4. Pushing IoT Data Gathering, Analysis, and Response to the Edge

5. IoT DIY Projects

Key Terms

For explanations of key terms, see the Glossary for this text.

Guide to Networking Essentials, Eighth Edition 13–10

➢ global positioning system (GPS)

➢ gyroscope

➢ hook-up wire

➢ humidity sensor

➢ hydrophone

➢ motion sensor

➢ neighborhood area network (NAN)

➢ occupancy sensor

➢ passive infrared (PIR)

➢ photodiode

➢ photoresistor

Technical Notes for Hands-On Projects