// Refer to http://aka.ms/azure-iot-hub-vs-cs-2017-wiki for more information on Connected Service for Azure IoT Hub
public static async Task SendDeviceToCloudMessageAsync(TrainSpotterMessage trainData)
{
CreateClient();
var btData = trainData;
string json = JsonConvert.SerializeObject(btData, Formatting.Indented);
var message = new Message(Encoding.ASCII.GetBytes(json));
await deviceClient.SendEventAsync(message);
Analytics.TrackEvent("SendDeviceToCloudMessageAsync", new Dictionary <string, string> {
{ "Category", "D2C:" + trainData.LastUpdate + ", " + trainData.Name + ", " + trainData.Url },
{ "Function", "SendD2C" }
});
}
private async void StartBeaconMonitoringAsync(object sender, Beacon beacon)
{
Ts trainMetaData = new Ts();
trainMetaData.Date = beacon.Timestamp;
var trainData = new TrainSpotterMessage();
try
{
trainData.Rssi = beacon.Rssi;
trainData.Mac = beacon.BluetoothAddressAsString;
trainData.TrainBeacon = beacon.BluetoothAddressAsString;
trainData.LastUpdate = beacon.Timestamp;
Analytics.TrackEvent("StartBeaconMonitoringAsync", new Dictionary <string, string> {
{ "Category", "Beacon:" + trainData.TrainBeacon },
{ "Function", "StartBeaconMonitoringAsync" }
});
foreach (var bluetoothBeacon in _beaconManager.BluetoothBeacons.ToList())
{
foreach (var beaconFrame in bluetoothBeacon.BeaconFrames.ToList()) //beacon.BeaconFrames.ToList())
{
if (beaconFrame is UidEddystoneFrame) //https://github.com/google/eddystone/tree/master/eddystone-uid
{
trainData.BeaconType = "UidEddystoneFrame";
trainData.Name = "Eddystone UID Frame";
trainData.Distance = ((UidEddystoneFrame)beaconFrame).RangingData; //Calibrated Tx power at 0 m - value is an 8-bit integer and ranges from -100 dBm to +20 dBm
// Note to developers: the best way to determine the precise value to put into this field is to measure the actual output of your beacon from 1 meter away and then add 41 dBm to that. 41dBm is the signal loss that occurs over 1 meter.
trainData.Namespace = ((UidEddystoneFrame)beaconFrame).NamespaceIdAsNumber.ToString("X") + " / " + ((UidEddystoneFrame)beaconFrame).InstanceIdAsNumber.ToString("X");
}
else if (beaconFrame is UrlEddystoneFrame) //https://github.com/google/eddystone/tree/master/eddystone-url
{
trainData.BeaconType = "UrlEddystoneFrame";
trainData.Name = "Eddystone URL Frame";
trainData.Url = ((UrlEddystoneFrame)beaconFrame).CompleteUrl;
trainData.Distance = ((UrlEddystoneFrame)beaconFrame).RangingData;
}
else if (beaconFrame is TlmEddystoneFrame) //https://github.com/google/eddystone/tree/master/eddystone-tlm
{
trainData.BeaconType = "TlmEddystoneFrame";
trainData.Name = "Eddystone Telemetry Frame";
trainData.Temperature = ((TlmEddystoneFrame)beaconFrame).TemperatureInC;
trainData.Battery = ((TlmEddystoneFrame)beaconFrame).BatteryInMilliV;
trainData.Uptime = ((TlmEddystoneFrame)beaconFrame).TimeSincePowerUp;
trainData.PacketsSent = ((TlmEddystoneFrame)beaconFrame).AdvertisementFrameCount;
}
else if (beaconFrame is EidEddystoneFrame) //https://github.com/google/eddystone/tree/master/eddystone-eid
{
trainData.BeaconType = "EidEddystoneFrame";
trainData.Name = "Eddystone EID Frame";
trainData.Distance = ((EidEddystoneFrame)beaconFrame).RangingData;
//trainData.Eid = BitConverter.ToString(((EidEddystoneFrame)beaconFrame).EphemeralIdentifier);
}
await AzureIoTHub.SendDeviceToCloudMessageAsync(trainData); //send the data only for recognized data types
Analytics.TrackEvent("Sent Data", new Dictionary <string, string> {
{ "Category", "Beacon:" + trainData.LastUpdate + ", " + trainData.Name + ", " + trainData.Url },
{ "Function", "StartBeaconMonitoringAsync" }
});
await Task.Delay(1000);
}
}
}
catch (Exception ex)
{
Debug.WriteLine("Error in Parsing Data: " + ex.Message);
await AzureIoTHub.SendDeviceToCloudMessageAsync(trainData); //send what we can...
Analytics.TrackEvent("Error Sent Data", new Dictionary <string, string> {
{ "Category", "Error:" + ex.Message.ToString() },
{ "Function", "StartBeaconMonitoringAsync" }
});
}
//StopWatchingBeaconManager(); //causes it to crash
//await Task.Delay(1000);
//StartBeaconManager();
}
public static string ToJson(this TrainSpotterMessage self) => JsonConvert.SerializeObject(self);
