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)

Modifying Hello LED using infrared sensor

We will continue our exploration of sensors by modifying our original Hello LED code. In this project, we will combine a distance sensor with our PIR sensor, and flash an LED based on the values of these sensors. This circuit will not only tell us that someone is approaching, but will also give us an indication of how close they are.

We will cover the following in this section:

  • Configuring a distance sensor
  • Taking Hello LED to another level

Configuring a distance sensor

We will start by configuring the distance sensor and running some code. The following is a circuit diagram of our distance sensor circuit:

The following are the connections to be made:

  • VCC from the motion sensor...