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Internet of Things with Python

You're reading from   Internet of Things with Python Create exciting IoT solutions

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Product type Paperback
Published in May 2016
Publisher Packt
ISBN-13 9781785881381
Length 388 pages
Edition 1st Edition
Languages
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Author (1):
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Gaston C. Hillar Gaston C. Hillar
Author Profile Icon Gaston C. Hillar
Gaston C. Hillar
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Table of Contents (13) Chapters Close

Preface 1. Understanding and Setting up the Base IoT Hardware FREE CHAPTER 2. Working with Python on Intel Galileo Gen 2 3. Interacting with Digital Outputs with Python 4. Working with a RESTful API and Pulse Width Modulation 5. Working with Digital Inputs, Polling and Interrupts 6. Working with Analog Inputs and Local Storage 7. Retrieving Data from the Real World with Sensors 8. Displaying Information and Performing Actions 9. Working with the Cloud 10. Analyzing Huge Amounts of Data with Cloud-based IoT Analytics A. Exercise Answers Index

Publishing messages with commands through the PubNub cloud


Now, we will take advantage of the PubNub console to send messages with commands to the temperature channel and make the Python code running on the board process these commands. In case you have logged out of PubNub, login again and click on the Temperature Control pane in the Admin Portal. PubNub will display the Demo Keyset pane.

Click on the Demo Keyset pane and PubNub will display the publish, subscribe, and secret keys. This way, we select the keyset that we want to use for our PubNub application.

Click on Debug Console on the sidebar located the left-hand side of the screen. PubNub will create a client for a default channel and subscribe to this channel using the secret keys we have selected in the previous step. We want to subscribe to the temperature channel, and therefore, enter temperature in the Default Channel textbox within a pane that includes the Add client button at the bottom. Then, click on Add client and PubNub will...

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