azure iot device to cloud messaging

manpreet Best Answer 2 years ago

_x000D_ Please try this .Hope it helps. Declare the constants first. private const string DeviceKey = "your secret key"; private const string DeviceId = "DeviceName"; And then create a connection string based on SymmetricKey _deviceClient = DeviceClient.Create(IotHubUri, new DeviceAuthenticationWithRegistrySymmetricKey(DeviceId, DeviceKey), TransportType.Mqtt); Sample code of Simulator: using System; using System.Text; using System.Threading.Tasks; using Microsoft.Azure.Devices.Client; using Newtonsoft.Json; namespace SimulatedDevice { class Program { private const string IotHubUri = "YourHubName.azure-devices.net"; private const string DeviceKey = "Secret Key"; private const string DeviceId = "DeviceId"; private const double MinVoltage = 40; private const double MinTemperature = 10; private const double MinHumidity = 50; private static readonly Random Rand = new Random(); private static DeviceClient _deviceClient; private static int _messageId = 1; static void Main(string[] args) { Console.WriteLine("Simulated device\n"); _deviceClient = DeviceClient.Create(IotHubUri, new DeviceAuthenticationWithRegistrySymmetricKey(DeviceId, DeviceKey), TransportType.Mqtt); _deviceClient.ProductInfo = "Simulated_Client"; SendDeviceToCloudMessagesAsync(); Console.ReadLine(); } private static async void SendDeviceToCloudMessagesAsync() { while (true) { var currentVoltage = MinVoltage + Rand.NextDouble() * 15; var currentTemperature = MinTemperature + Rand.NextDouble() * 20; var currentHumidity = MinHumidity + Rand.NextDouble() * 25; var telemetryDataPoint = new { deviceId = DeviceId, timestamp = DateTime.UtcNow, Temperature = currentTemperature, Humidity = currentHumidity, Voltage = currentVoltage, }; var messageString = JsonConvert.SerializeObject(telemetryDataPoint); var message = new Message(Encoding.ASCII.GetBytes(messageString)); await _deviceClient.SendEventAsync(message); Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString); await Task.Delay(2000); } } } }