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

Speed control


It's amazing to have made a robotic arm so easily, and with just a bit of code, we are now able to control it the way we want. However, there is one problem you might have noticed, that is, the robot is moving the way we want but not at the speed at which we want it to move. This is a very common problem while using the digital PWM-based servos.

These servos do not have a built-in speed control. Their control system is programmed to move the servo as fast as they can to reach the goal position. Hence, to control the speed, we will have to play with the program itself and give it a smooth linear progression.

The speed control can be done through a few different techniques. So, without much talking, let's go and see the code. Before you write it, read it and go through the code once and then see the following explanation to it. Thereafter, you will have a better idea of what we are doing. This will make writing the code faster and easier. So, let's take a look at it:

import RPi...