Azure IoT Development Cookbook

How to do it...

In this topic, we are going to create a C# simulator, which will use the device twin and direct methods to send the firmware update to device:

1. Create C# console IoT application.
2. Add a Azure.Devices package for NuGet.
3. Trigger the remote update to update the device firmware:

client = ServiceClient.CreateFromConnectionString(AzureIoTHub.GetConnectionString());CloudToDeviceMethod method = new CloudToDeviceMethod("firmwareUpdate");method.ResponseTimeout = TimeSpan.FromSeconds(30);method.SetPayloadJson(@"{fwPackageUri : '"+ bloburl + "'}");CloudToDeviceMethodResult result = await client.InvokeDeviceMethodAsync(targetDevice, method);