public async Task <bool> Initialize()
{
moduleClient = await WrappedModuleClient.Create();
var acm0 = OpenSerialPort("/dev/ttyACM0");
if (acm0 != null)
{
Logger.LogInfo("Successfully opened /dev/ACM0");
serialPort = acm0;
}
else
{
Logger.LogInfo("ACM0 not available, opening serial port ACM1");
var acm1 = OpenSerialPort("/dev/ttyACM1");
if (acm1 != null)
{
Logger.LogInfo("Successfully opened /dev/ACM1");
serialPort = acm1;
}
else
{
return(false);
}
}
return(true);
}
/// <summary>
/// Initializes the ModuleClient and sets up the callback to receive
/// messages containing temperature information
/// </summary>
static async Task Init()
{
// Use Mqtt as it is more reliable than ampq
MqttTransportSettings mqttSetting = new MqttTransportSettings(TransportType.Mqtt_Tcp_Only);
ITransportSettings[] settings = { mqttSetting };
// Open a connection to the Edge runtime
ModuleClient ioTHubModuleClient = await ModuleClient.CreateFromEnvironmentAsync(settings);
await ioTHubModuleClient.OpenAsync();
wrappedModuleClient = new WrappedModuleClient(ioTHubModuleClient);
Logger.LogInfo("IoT Hub module client initialized.");
// get module twin settings
var moduleTwin = await ioTHubModuleClient.GetTwinAsync();
await OnDesiredPropertiesUpdate(moduleTwin.Properties.Desired, ioTHubModuleClient);
// Attach a callback for updates to the module twin's desired properties.
await ioTHubModuleClient.SetDesiredPropertyUpdateCallbackAsync(OnDesiredPropertiesUpdate, null);
// Register callback to be called when a message is received by the module
await ioTHubModuleClient.SetInputMessageHandlerAsync(TrackerModule.TelemetryInputName, ProcessTelemetry, ioTHubModuleClient);
// Register callback to be called when a message is received by the module
await ioTHubModuleClient.SetInputMessageHandlerAsync(TrackerModule.BalloonInputName, ProcessBalloonData, ioTHubModuleClient);
}
private void ReceiptTimerCallback(object state)
{
Logger.LogWarning("Timer fired - did not receive expected balloon message");
UpdatePacketReceiveHistory(false);
var trackerMessage = new TrackerMessage()
{
Location = this.Location,
DeviceName = this.DeviceName,
FlightId = this.FlightId,
PacketReceivedPercentage = CalculatePacketReceivedPercentage()
};
try
{
var moduleClient = WrappedModuleClient.Create().Result;
Message trackerMessageRaw = new Message(trackerMessage.ToRawBytes());
moduleClient.SendEventAsync(TrackerOutputName, trackerMessageRaw).Wait();
}
catch (Exception ex)
{
// Todo - wire in with application insights
Logger.LogWarning($"Error Transmitter tracker message: {ex.Message}");
}
}
/// <summary>
/// Initializes the ModuleClient and sets up the callback to receive
/// messages containing temperature information
/// </summary>
static async Task Init()
{
try
{
moduleClient = await WrappedModuleClient.Create();
}
catch (Exception ex)
{
Logger.LogFatalError("Failed to create module client.");
Logger.LogException(ex);
// Throw to make module shutdown and get restarted by the iot edge agent.
throw ex;
}
Logger.LogInfo("Created and connected Module Client. ");
// Register callback to be called when a message is received by the module
await moduleClient.moduleClient.SetInputMessageHandlerAsync(BalloonModule.TelemetryInputName, ProcessTelemetry, moduleClient.moduleClient);
transmitTimer = new Timer(TransmitTimerCallback, null, transmitInterval, transmitInterval);
}
