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The Azure IoT Handbook

You're reading from  The Azure IoT Handbook

Product type Book
Published in Dec 2023
Publisher Packt
ISBN-13 9781837633616
Pages 248 pages
Edition 1st Edition
Languages
Author (1):
Dan Clark Dan Clark
Profile icon Dan Clark

Table of Contents (18) Chapters

Preface 1. Part 1: Capturing Data from Remote Devices
2. Chapter 1: An Introduction to the IoT 3. Chapter 2: Exploring the IoT Hub Service 4. Chapter 3: Provisioning Devices with the Device Provisioning Service 5. Chapter 4: Exploring Device Management and Monitoring 6. Chapter 5: Securing IoT Systems 7. Part 2: Processing the Data
8. Chapter 6: Creating Message Routing 9. Chapter 7: Exploring Azure Stream Analytics 10. Chapter 8: Investigating IoT Data with Azure Data Explorer 11. Chapter 9: Exploring IoT Edge Computing 12. Part 3: Processing the Data
13. Chapter 10: Visualizing Streaming Data in Power BI 14. Chapter 11: Integrating Machine Learning 15. Chapter 12: Responding to Device Events 16. Index 17. Other Books You May Enjoy

Communicating with IoT devices

There are several different ways you can communicate with your IoT devices. This includes device-to-cloud messages, cloud-to-device messages, file upload notifications, direct method invocation, and operation monitoring events.

Device-to-cloud messaging

We can use the Microsoft.Azure.Devices.Client SDK to create a simulated device. On the device, you will need to install an IoT device SDK and use it to establish a connection to IoT Hub using the connection string you obtained when you registered the device in IoT Hub.

The following code block shows some sample code in Python that demonstrates how to connect a device to IoT Hub using the Azure IoT device SDK:

import os
from azure.iot.device import IoTHubDeviceClient
# Connection string for the device
CONNECTION_STRING = "<your device connection string>"
# Connect to IoT Hub
client = IoTHubDeviceClient.create_from_connection_string(CONNECTION_STRING)
client.connect()
# Send a...
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