Book Image

Internet of Things Programming Projects

By : Colin Dow
Book Image

Internet of Things Programming Projects

By: Colin Dow

Overview of this book

The Internet of Things (IOT) has managed to attract the attention of researchers and tech enthusiasts, since it powerfully combines classical networks with instruments and devices. In Internet of Things Programming Projects, we unleash the power of Raspberry Pi and Python to create engaging projects. In the first part of the book, you’ll be introduced to the Raspberry Pi, learn how to set it up, and then jump right into Python programming. Then, you’ll dive into real-world computing by creating a“Hello World” app using flash LEDs. As you make your way through the chapters, you’ll go back to an age when analog needle meters ruled the world of data display. You’ll learn to retrieve weather data from a web service and display it on an analog needle meter, and build a home security system using the Raspberry Pi. The next project has a modern twist, where we employ the Raspberry Pi to send a signal to a web service that will send you a text when someone is at the door. In the final project, you take what you've learned from the previous two projects and create an IoT robot car that you can use to monitor what your pets are up to when you are away. By the end of this book, you will be well versed in almost every possible way to make your IoT projects stand out.
Table of Contents (21 chapters)

Chapter 8

  1. What is the difference between an active buzzer and a passive buzzer?

A. An active buzzer has an internal oscillator and will make a sound when a direct current, or DC, is applied to it. A passive buzzer requires an alternating current, or AC, in order for it to make a sound.

  1. True/false? We check the button.is_pressed parameter to confirm whether or not our push button has been pressed.

A. True

  1. True/false? We require a voltage divider circuit in order to connect our PIR sensor.

A. False

  1. What are the three different methods we may use to have our active buzzer beep on and off?

A. buzzer.on() and buzzer.off() separated by a delay, buzzer.toggle() and buzzer.beep()

  1. True/false? Push buttons must connect directly to a circuit in order to be useful.

A. False

  1. Which DistanceSensor parameter do we use to check the distance of an object from the distance sensor?

A...