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Python Robotics Projects

You're reading from   Python Robotics Projects Build smart and collaborative robots using Python

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781788832922
Length 340 pages
Edition 1st Edition
Languages
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Concepts
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Author (1):
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Prof. Diwakar Vaish Prof. Diwakar Vaish
Author Profile Icon Prof. Diwakar Vaish
Prof. Diwakar Vaish
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Toc

Table of Contents (24) Chapters Close

Title Page
Packt Upsell
Contributors
Preface
1. Robotics 101 FREE CHAPTER 2. Using GPIOs as Input 3. Making a Gardener Robot 4. Basics of Motors 5. Making a Pet Feeding Robot 6. Bluetooth-Controlled Robotic Car 7. Sensor Interface for Obstacle Avoidance 8. Making Your Own Area Scanner 9. Vision Processing 10. Making a Guard Robot 11. Basic Switching 12. Recognizing Humans with Jarvis 13. Making Jarvis IoT Enabled 14. Giving Voice to Jarvis 15. Gesture Recognition 16. Machine Learning 17. Gesture-Controlled Robotic Vehicle 18. Making a Robotic Arm 1. Other Books You May Enjoy Index

The MQTT protocol


MQTT is an ISO-certified protocol and is in use very widely. The interesting thing about this protocol is that it was developed by Andy Stanford and Arlen Nipper in 1999 for monitoring of an oil pipeline through the desert. As you can imagine, in middle of a desert, the protocol they developed had to be energy efficient and bandwidth efficient as well.

How this protocol works is quite interesting. It has a publish-subscribe architecture. This means, it has a central server, which we also call a broker. Any device can register with this broker and publish any meaningful data onto it. Now, the data that is being published should have a topic, for example, air temperature.

These topics are particularly important. Why, you may ask? To the broker, there can be one or many devices that can be connected. With the connection, they also need to subscribe to a topic. Let's say they are subscribed to the topic Air-Temperature. Now, whenever any new data comes, it gets published to the...

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