How does Azure IoT Hub work?

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The Internet of Things (IoT) provides businesses instant and real-world opportunities to save expenses, enhance revenue, and alter their operations. It enables bidirectional communication between IoT apps and the devices under its management. This cloud-to-device connectivity allows you to not only receive data from your devices but also send commands and policies back to them. The difference between Azure IoT hub and existing solutions is that it provides the infrastructure to authenticate, connect, and manage connected devices.

What Is Azure IoT Hub?

Azure IoT Hub enables feature-rich and scalable IoT solutions. Azure IoT Hub can link virtually any device and scale up to millions of devices. Events such as device creation, failure, and connection can be logged and monitored.

Azure IoT Hub provides,

  • Device libraries for the most popular platforms and languages allow simple device connectivity.
  • Secure communications using a variety of device-to-cloud and cloud-to-device hyper-scale communication options.
  • Searchable storage of per-device status information and meta-data.
  • Device management using IoT Hub

Azure IoT Hub can provide developers with the capabilities, patterns, and code libraries they need to create management systems that can control many devices. The goals and expectations of IoT operators range significantly across industries, from transportation to manufacturing to agriculture to utilities. There is also an extensive range of device types used by IoT operators.

Configuring and controlling devices

Devices linked to Azure IoT Hub can be managed using various built-in features. It implies-

  • Your devices’ metadata and status information may be stored, synchronized, and queried.
  • Device states can be configured per device or in groups based on common device attributes.
  • A device’s status change can be automatically replied to using message routing integration.
  • The device lifespan with Azure IoT Hub

What Is Azure IoT Hub Plan?

Operators can develop a device metadata scheme that allows them to do bulk management activities easily.


Operators may immediately identify device capabilities after securely provisioning new devices to Azure IoT Hub. Device IDs and credentials are created using the IoT Hub identity registry.


Device administration procedures such as configuration modifications and firmware updates can be performed in bulk or directly while ensuring system security.


Operators may be easily informed of any issues that arise while also monitoring the health of the device collection and the status of any ongoing activities.


Devices must be upgraded, retired, or decommissioned. The Azure IoT Hub identity registry is employed to extract device identities and credentials.

IoT Hub provides a variety of device management styles, like as

  • Reboot
  • Factory reset
  • Configuration
  • Firmware update
  • Reporting progress and status

These patterns can be customized to your exact needs. These templates can also be used to generate new patterns.

Connecting your devices

Using the Azure IoT device SDK, you can create applications that run on your devices and interface with IoT Hub. 

Languages currently supported include,

  • C#
  • C
  • Java
  • Python
  • Node.js.
  • Messaging Patterns

Azure IoT Hub supports a variety of communications patterns, such as,

  • Telemetry from device to cloud
  • Device-based file upload
  • Request-response mechanisms that enable device control from the cloud
  • Event grid and message routing

Device data can be routed.

Message routing allows you to direct where your hub delivers telemetry from your devices. The message routing functionality is included in Azure IoT Hub. It will enable you to automate message fan-out based on rules. Routing messages to numerous endpoints is free of charge.

Building end-to-end solutions

Integrating IoT Hub with other Azure services allows for the creation of end-to-end solutions. As an example,

  • Azure Logic Apps can automate business operations.
  • Using Azure Stream Analytics, you can do real-time analytic computations on data from your devices.
  • Azure Machine Learning can be used to add AI models and machine learning.
  • With Azure Event Grid, you can respond quickly to critical events.


Businesses face IoT-specific security, privacy, and regulatory challenges. Security for IoT systems entails provisioning devices, secure communication between devices and the cloud, and safe data protection in the cloud during processing along with storage securely.

Why is MQTT important for IoT?

MQTT has been identified as one of the leading protocols for IoT solutions in recent years. There are various reasons for this. Firstly, one of the IoT protocols now used is the lightest. Since it is an open standard, any hardware or software can use it. The availability of client libraries for all popular programming languages makes it simple to create IoT applications utilizing MQTT.

Thanks to the publish and subscribe paradigm, MQTT’s flexibility makes it feasible to handle various IoT project designs and use case types. Notably, since the broker manages all connections, publishers and subscribers of the system don’t even need to be aware of one another’s existence. The protocol enables highly scalable projects to be implemented, potentially enabling the connection of millions of IoT devices in a single system. Broadcasting messages to numerous devices simultaneously is possible thanks to MQTT’s bi-directional connection. 


Data can be transferred across secure communications channels using Azure IoT Hub. Each device is securely connected to the hub and may be managed securely. You may control access per-device basis, and devices are provisioned to the relevant hub when they initially power up.

One of the recipients of the IoT Breakthrough Award 2021 is Akenza; the technology company was named “Smart Construction Solution of the Year” in the Internet of Things industry. In their own words, the IoT Breakthrough Award’s founders acknowledge “great achievements and inventiveness, hard work and the success of IoT companies, technology and products” through this competition.

With notable clients like the Facility Management Provider ISS Switzerland and Georg Fischer, as well as with other large clients, the business has established itself in long-term relationships.