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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

Running and testing the Python server

In this section, we will run and interact with a Python server program that will let us control our LED from a web browser by copying and pasting links. Once we have used the program to control our LED, we'll then delve into the mechanics of the code and how it works in the next section.

Here are the steps to follow:

  1. Run the chapter02/dweet_led.py program. You should see output similar to the following:
(venv) $ python dweet_led.py
INFO:main:Created new thing name a8e38712 # (1)
LED Control URLs - Try them in your web browser:
On : https://dweet.io/dweet/for/a8e38712?state=on # (2)
Off : https://dweet.io/dweet/for/a8e38712?state=off
Blink : https://dweet.io/dweet/for/a8e38712?state=blink

INFO:main:LED off
Waiting for dweets. Press Control+C to exit.

On line (1), the program has created a unique name for our thing to use with dweet.io. You'll notice this name in the URLs starting on...

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