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)

Creating our dashboard using CherryPy

To create our home security dashboard, we will modify the code we wrote in Chapter 7, Setting Up a Raspberry Pi Web Server. These modifications include adding sensory data from the GPIOsomething we became very good at by the end of Chapter 8, Reading Raspberry Pi GPIO Sensor Data Using Python.

Two of the inputs, the temperature and humidity sensor and the Pi camera, will require additional steps so that we can integrate them into our dashboard.

Using the DHT11 to find temperature and humidity

The DHT11 temperature and humidity sensor is a low-cost hobbyist-grade sensor, capable of providing basic measurements. The DHT11 comes in two different versions, the four-pin model and the...