Update routing tutorial article

Author: ngastelum-ms

articles/iot-hub/horizontal-arm-route-messages.md

@@ -34,7 +34,7 @@ If your environment meets the prerequisites and you're familiar with using ARM t
     dotnet --version
     ```
 
-- Download and unzip the [IoT C# Samples](/samples/azure-samples/azure-iot-samples-csharp/azure-iot-samples-for-csharp-net/).
+- Download and unzip the [IoT C# SDK](https://github.com/Azure/azure-iot-sdk-csharp/archive/main.zip).
 
 ## Review the template
 
@@ -58,7 +58,7 @@ This section provides the steps to deploy the template, create a virtual device,
 
     [![Deploy To Azure](https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/1-CONTRIBUTION-GUIDE/images/deploytoazure.svg?sanitize=true)](https://portal.azure.com/#create/Microsoft.Template/uri/https%3A%2F%2Fraw.githubusercontent.com%2FAzure%2Fazure-quickstart-templates%2Fmaster%2Fquickstarts%2Fmicrosoft.devices%2Fiothub-auto-route-messages%2Fazuredeploy.json)
 
-1. Open a command window and go to the folder where you unzipped the IoT C# Samples. Find the folder with the arm-read-write.csproj file. You create the environment variables in this command window. Log into the [Azure portal](https://portal.azure.com) to get the keys. Select **Resource Groups** then select the resource group used for this quickstart.
+1. Open a command window and go to the folder where you unzipped the IoT C# SDK. Find the folder with the arm-read-write.csproj file. You create the environment variables in this command window. Log into the [Azure portal](https://portal.azure.com) to get the keys. Select **Resource Groups** then select the resource group used for this quickstart.
 
    ![Select the resource group](./media/horizontal-arm-route-messages/01-select-resource-group.png)
 
@@ -131,7 +131,7 @@ This section provides the steps to deploy the template, create a virtual device,
    ![View the sent messages](./media/horizontal-arm-route-messages/08-messages.png)
 
    > [!NOTE]
-   > These messages are encoded in UTF-32 and base64. If you read the message back, you have to decode it from base64 and utf-32 in order to read it as ASCII. If you're interested, you can use the method ReadOneRowFromFile in the Routing Tutorial to read one for from one of these message files and decode it into ASCII. ReadOneRowFromFile is in the IoT C# Samples repository that you unzipped for this quickstart. Here is the path from the top of that folder: *./iot-hub/Tutorials/Routing/SimulatedDevice/Program.cs.* Set the boolean `readTheFile` to true, and hardcode the path to the file on disk, and it will open and translate the first row in the file.
+   > These messages are encoded in UTF-32 and base64. If you read the message back, you have to decode it from base64 and utf-32 in order to read it as ASCII. If you're interested, you can use the method ReadOneRowFromFile in the Routing Tutorial to read one for from one of these message files and decode it into ASCII. ReadOneRowFromFile is in the IoT C# SDK repository that you unzipped for this quickstart. Here is the path from the top of that folder: *./iothub/device/samples/getting started/RoutingTutorial/SimulatedDevice/Program.cs.* Set the boolean `readTheFile` to true, and hardcode the path to the file on disk, and it will open and translate the first row in the file.
 
 You have deployed an ARM template to create an IoT Hub and a storage account, and run a program to send messages to the hub. The messages are then automatically stored in the storage account where they can be viewed.
 

articles/iot-hub/quickstart-bicep-route-messages.md

@@ -55,9 +55,9 @@ This section provides the steps to deploy the Bicep file, create a virtual devic
 
     When the deployment finishes, you should see a message indicating the deployment succeeded.
 
-1. Download and unzip the [IoT C# Samples](/samples/azure-samples/azure-iot-samples-csharp/azure-iot-samples-for-csharp-net/).
+1. Download and unzip the [IoT C# SDK](https://github.com/Azure/azure-iot-sdk-csharp/archive/main.zip).
 
-1. Open a command window and go to the folder where you unzipped the IoT C# Samples. Find the folder with the arm-read-write.csproj file. You create the environment variables in this command window. Log into the [Azure portal](https://portal.azure.com) to get the keys. Select **Resource Groups** then select the resource group used for this quickstart.
+1. Open a command window and go to the folder where you unzipped the IoT C# SDK. Find the folder with the arm-read-write.csproj file. You create the environment variables in this command window. Log into the [Azure portal](https://portal.azure.com) to get the keys. Select **Resource Groups** then select the resource group used for this quickstart.
 
    ![Select the resource group](./media/horizontal-arm-route-messages/01-select-resource-group.png)
 
@@ -130,7 +130,7 @@ This section provides the steps to deploy the Bicep file, create a virtual devic
    ![View the sent messages](./media/horizontal-arm-route-messages/08-messages.png)
 
    > [!NOTE]
-   > These messages are encoded in UTF-32 and base64. If you read the message back, you have to decode it from base64 and utf-32 in order to read it as ASCII. If you're interested, you can use the method ReadOneRowFromFile in the Routing Tutorial to read one for from one of these message files and decode it into ASCII. ReadOneRowFromFile is in the IoT C# Samples repository that you unzipped for this quickstart. Here is the path from the top of that folder: *./iot-hub/Tutorials/Routing/SimulatedDevice/Program.cs.* Set the boolean `readTheFile` to true, and hardcode the path to the file on disk, and it will open and translate the first row in the file.
+   > These messages are encoded in UTF-32 and base64. If you read the message back, you have to decode it from base64 and utf-32 in order to read it as ASCII. If you're interested, you can use the method ReadOneRowFromFile in the Routing Tutorial to read one for from one of these message files and decode it into ASCII. ReadOneRowFromFile is in the IoT C# SDK repository that you unzipped for this quickstart. Here is the path from the top of that folder: *./iothub/device/samples/getting started/RoutingTutorial/SimulatedDevice/Program.cs* Set the boolean `readTheFile` to true, and hardcode the path to the file on disk, and it will open and translate the first row in the file.
 
 You have deployed a Bicep file to create an IoT Hub and a storage account, and run a program to send messages to the hub. The messages are then automatically stored in the storage account where they can be viewed.
 

articles/iot-hub/tutorial-routing.md

@@ -32,10 +32,10 @@ In this tutorial, you perform the following tasks:
 
 * An IoT hub in your Azure subscription. If you don't have a hub yet, you can follow the steps in [Create an IoT hub](iot-hub-create-through-portal.md).
 
-* This tutorial uses sample code from [Azure IoT samples for C#](https://github.com/Azure-Samples/azure-iot-samples-csharp).
+* This tutorial uses sample code from [Azure IoT SDK for C#](https://github.com/Azure/azure-iot-sdk-csharp).
 
-  * Download or clone the samples repo to your development machine.
-  * Have .NET Core 3.0.0 or greater on your development machine. Check your version by running `dotnet --version` and [Download .NET](https://dotnet.microsoft.com/download) if necessary. <!-- TODO: update sample to use .NET 6.0 -->
+  * Download or clone the SDK repo to your development machine.
+  * Have .NET Core 3.0.0 or greater on your development machine. Check your version by running `dotnet --version` and [Download .NET](https://dotnet.microsoft.com/download) if necessary.
 
 * Make sure that port 8883 is open in your firewall. The sample in this tutorial uses MQTT protocol, which communicates over port 8883. This port may be blocked in some corporate and educational network environments. For more information and ways to work around this issue, see [Connecting to IoT Hub (MQTT)](iot-hub-mqtt-support.md#connecting-to-iot-hub).
 
@@ -100,32 +100,28 @@ Register a new device in your IoT hub.
 ---
 
 Now that you have a device ID and key, use the sample code to start sending device telemetry messages to IoT Hub.
-<!-- TODO: update sample to use environment variables, not inline variables -->
 
 >[!TIP]
 >If you're following the Azure CLI steps for this tutorial, run the sample code in a separate session. That way, you can allow the sample code to continue running while you follow the rest of the CLI steps.
 
-1. If you didn't as part of the prerequisites, download or clone the [Azure IoT samples for C# repo](https://github.com/Azure-Samples/azure-iot-samples-csharp) from GitHub now.
-1. In the sample folder, navigate to the `/iot-hub/Tutorials/Routing/SimulatedDevice/` folder.
-1. In an editor of your choice, open the `Program.cs` file.
-1. Find the variable definitions at the top of the **Program** class. Update the following variables with your own information:
-
-   * **s_myDeviceId**: The device ID that you assigned when registering the device.
-   * **s_iotHubUri**: The hostname of your IoT hub, which takes the format `IOTHUB_NAME.azure-devices.net`.
-   * **s_deviceKey**: The device key that you copied from the device identity information.
-
-1. Save and close the file.
+1. If you didn't as part of the prerequisites, download or clone the [Azure IoT SDK for C# repo](https://github.com/Azure/azure-iot-sdk-csharp) from GitHub now.
+1. In the sample folder, navigate to the `/iothub/device/samples/getting started/RoutingTutorial/SimulatedDevice/` folder.
 1. Install the Azure IoT C# SDK and necessary dependencies as specified in the `SimulatedDevice.csproj` file:
 
    ```console
    dotnet restore
    ```
 
-1. Run the sample code:
+1. In an editor of your choice, open the `Paramaters.cs` file. This file shows the parameters that are supported by the sample. Only the first three required parameters will be used in this article when running the sample. Review the code in this file. No changes are needed.
+1. Build and run the sample code using the following command:
 
-   ```console
-   dotnet run
-   ```
+    * Replace `<myDeviceId>` with the device ID that you assigned when registering the device.
+    * Replace `<iotHubUri>` with the hostname of your IoT hub, which takes the format `IOTHUB_NAME.azure-devices.net`.
+    * Replace `<deviceKey>` with the device key that you copied from the device identity information.
+
+    ```cmd
+    dotnet run --d <myDeviceId> --u <iotHubUri> --k <deviceKey>
+    ```
 
 1. You should start to see messages printed to output as they are sent to IoT Hub. Leave this program running for the duration of the tutorial.