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Practical Python Programming for IoT

You're reading from   Practical Python Programming for IoT Build advanced IoT projects using a Raspberry Pi 4, MQTT, RESTful APIs, WebSockets, and Python 3

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Product type Paperback
Published in Nov 2020
Publisher Packt
ISBN-13 9781838982461
Length 516 pages
Edition 1st Edition
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Author (1):
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Gary Smart Gary Smart
Author Profile Icon Gary Smart
Gary Smart
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Table of Contents (20) Chapters Close

Preface 1. Section 1: Programming with Python and the Raspberry Pi
2. Setting Up your Development Environment FREE CHAPTER 3. Getting Started with Python and IoT 4. Networking with RESTful APIs and Web Sockets Using Flask 5. Networking with MQTT, Python, and the Mosquitto MQTT Broker 6. Section 2: Practical Electronics for Interacting with the Physical World
7. Connecting Your Raspberry Pi to the Physical World 8. Electronics 101 for the Software Engineer 9. Section 3: IoT Playground - Practical Examples to Interact with the Physical World
10. Turning Things On and Off 11. Lights, Indicators, and Displaying Information 12. Measuring Temperature, Humidity, and Light Levels 13. Movement with Servos, Motors, and Steppers 14. Measuring Distance and Detecting Movement 15. Advanced IoT Programming Concepts - Threads, AsyncIO, and Event Loops 16. IoT Visualization and Automation Platforms 17. Tying It All Together - An IoT Christmas Tree 18. Assessments 19. Other Books You May Enjoy

Reviewing GPIOZero – simple interfacing for beginners

The focus of the GPIOZero library is on simplicity, making it a no-fuss library for beginners getting into physical computing and interfacing electronics. It achieves ease-of-use by abstracting away the underlying technical complexity and allows you to write code that deals with devices and peripherals such as LEDs, buttons, and common sensors, rather than writing lower-level code that directly manages pins.

Technically, GPIOZero is not actually a full-fledged GPIO library in terms of how it interacts with GPIO pin hardware. It is a simplifying wrapper around other GPIO libraries that are employed to do the actual GPIO grunt work. In Chapter 2, Getting Started with Python and IoT, we saw a push button and LED example in both GPIOZero and PiGPIO that illustrated this point.

Here are the key highlights of GPIOZero in a nutshell:

  • Description: High-level GPIO Library designed for beginners
  • Pros: Easy to learn and use with excellent...
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