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)

Reading our button state using Bluetooth and Python

As mentioned previously, we are able to interact with the Blue Dot app in more ways than just a simple button press. The Blue Dot app can interpret where on the button a user presses, as well as detect double presses and swipes. In the following code, we will read from the Blue Dot app using Python.

Reading button information using Python

Do the following :

  1. Open up Thonny from Application Menu | Programming | Thonny Python IDE
  2. Click on the New icon to create a new file
  3. Type the following into the file:
from bluedot import BlueDot
from signal import pause

class BlueDotButton:

def swiped(swipe):

if swipe.up:
print("Blue Dot Swiped Up&quot...