August 2017
Intermediate to advanced
254 pages
6h 10m
English
Content preview from Azure IoT Development Cookbook
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Device twins
Firstly, we need to understand what a device twin is. We will be following some steps to use a device twin to understand their purpose and where we can use the device twin in any IoT solution. The device twin is a JSON formatted document that describes the metadata, properties of any device created within IoT Hub. It describes the individual device specific information.
The device twin is made up of: tags, desired properties, and reported properties. The operations that can be done on an IoT device is to update the data or query for any IoT device. this feature can be built into the IoT Solution from where a Administrator user can initiate these.
Tags hold the device metadata that can be accessed from an IoT solution only. The ...