Book Image

Getting Started with Python for the Internet of Things

By : Tim Cox, Steven Lawrence Fernandes, Sai Yamanoor, Srihari Yamanoor, Prof. Diwakar Vaish
Book Image

Getting Started with Python for the Internet of Things

By: Tim Cox, Steven Lawrence Fernandes, Sai Yamanoor, Srihari Yamanoor, Prof. Diwakar Vaish

Overview of this book

This Learning Path takes you on a journey in the world of robotics and teaches you all that you can achieve with Raspberry Pi and Python. It teaches you to harness the power of Python with the Raspberry Pi 3 and the Raspberry Pi zero to build superlative automation systems that can transform your business. You will learn to create text classifiers, predict sentiment in words, and develop applications with the Tkinter library. Things will get more interesting when you build a human face detection and recognition system and a home automation system in Python, where different appliances are controlled using the Raspberry Pi. With such diverse robotics projects, you'll grasp the basics of robotics and its functions, and understand the integration of robotics with the IoT environment. By the end of this Learning Path, you will have covered everything from configuring a robotic controller, to creating a self-driven robotic vehicle using Python. • Raspberry Pi 3 Cookbook for Python Programmers - Third Edition by Tim Cox, Dr. Steven Lawrence Fernandes • Python Programming with Raspberry Pi by Sai Yamanoor, Srihari Yamanoor • Python Robotics Projects by Prof. Diwakar Vaish
Table of Contents (37 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Interfacing through I2C


So far, so good. Electronic circuits can be very interesting and, while they seem very complex, often we find that the working can be very simple. In the previous section, we interfaced one sensor at a time. We can go ahead and interface multiple sensors, but we are limited by the number of GPIOs that are present. We have also seen that some sensors such as ultrasonic sensors may use more than one GPIO pin for their working. This further reduces the number of sensors that we can interface with the microcontroller. Once we move on to more complex circuits, we will also realize that the wiring can be really messy and if a problem occurs then finding what's wrong becomes one tedious task.

Now, there is an even bigger problem that we face while designing robotic systems and that's the problem of timing—all the work done in a system has to be synchronized. Most of the systems are currently sequential in nature, as in the output of one unit becomes the input of another:

Now...