azure-iot-samples-csharp | understand samples for using Azure IoT Hub | Azure library
kandi X-RAY | azure-iot-samples-csharp Summary
kandi X-RAY | azure-iot-samples-csharp Summary
page_type: sample description: "A set of easy-to-understand, continuously-tested samples for connecting to Azure IoT Hub." languages:.
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QUESTION
I'm struggling with creating a message from a device to the IotHub in the correct format.
I'm using the Azure Client SDK (Microsoft.Azure.Devices.Client)
For better understanding lets start with a small example, we have the following string:
...ANSWER
Answered 2021-Jul-12 at 18:28If you create a proper Json object first it works and also shows up correct in the shell - interestingly only for this c# project, I tried doing the same in Java on Android and the same wierd formatting stuff still happens even after making an object with gson.
For the solution:
QUESTION
I am currently learning about Azure IOT Plug and Play and Digital Twins.
I am running the following Device Sample: Azure\IOT Plug and Play\azure-iot-samples-csharp\iot-hub\Samples\device\PnpDeviceSamples\Thermostat
and the corresponding Service Example: Azure\IOT Plug and Play\azure-iot-samples-csharp\iot-hub\Samples\service\PnpServiceSamples\Thermostat
To interact with the Thermostat: https://github.com/Azure/opendigitaltwins-dtdl/blob/master/DTDL/v2/samples/Thermostat.json
I would like to discover what Properties, Telemetry and Commands are available for a device/twin through an API/SDK based on the twin ID, However I notice that the Microsoft.Azure.Devices.Device and Microsoft.Azure.Devices.Shared.Twin classes only contain Property information and don't define Commands or Telemetry.
...ANSWER
Answered 2020-Oct-22 at 05:50To discover all the details of the device model dynamically in your application should do the following:
- identify the device's model-id
- resolve it to the model file from the repository
- parse the model file
See documentation here: https://docs.microsoft.com/en-us/azure/iot-pnp/concepts-model-discovery
To parse the model you can read the json directly, or use the model parser library to get a rich object model for the device model. See docs here: https://docs.microsoft.com/en-us/azure/iot-pnp/concepts-model-parser
QUESTION
I'm starting with IoT Hub and Azure services. I'm following this quickstart tutorial: Quickstart: Send telemetry from a device to an IoT hub and read it with a back-end application (.NET)
I created a Free Tier IoT Hub in my Azure account and registered a device using Azure Cloud Shell. Now I'm developing a "starter" library send D2C messages and I can see that it is possible to read sent messages. I have problems with the last step, it seems that the code is written in C# 8, but I'm developing with VS 2017 and get an error in a await foreach
loop.
The sample code is here, and this is the code I want to change to C# 7:
...ANSWER
Answered 2020-Oct-22 at 12:46It is possible to use the library without C# 8 by managing the enumerable manually. The basic form would look something like:
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