public async void Run(IBackgroundTaskInstance taskInstance)
{
m_Deferral = taskInstance.GetDeferral();
taskInstance.Canceled += TaskInstanceCanceled;
// initialize I2C
var i2cSettings = new I2cConnectionSettings(BMP280.Address)
{
BusSpeed = I2cBusSpeed.FastMode,
SharingMode = I2cSharingMode.Shared,
};
var selector = I2cDevice.GetDeviceSelector(m_DeviceSelector);
var deviceInformation = await DeviceInformation.FindAllAsync(selector);
m_Device = await I2cDevice.FromIdAsync(deviceInformation[0].Id, i2cSettings);
// initialize sensor
m_Sensor = new BMP280(m_Device);
await m_Sensor.PowerUp();
// initialize MQTT
try
{
m_Client = new MqttClient(m_Host);
m_Client.Connect(m_ClientId);
}
catch (MqttConnectionException ex)
{
// ignore connection exception and retry to connect later
Debug.WriteLine("Cannot connect to MQTT broker: " + ex.Message);
m_Client = null;
}
var appService = taskInstance.TriggerDetails as AppServiceTriggerDetails;
if (appService != null && appService.Name == m_ServiceName)
{
m_AppServiceConnection = appService.AppServiceConnection;
m_AppServiceConnection.RequestReceived += OnRequestReceived;
}
m_Client.Publish(m_ServiceTopic, Encoding.UTF8.GetBytes(DateTime.Now.ToUniversalTime().ToString("O")), m_QoS, true);
// start timer
m_Timer = new Timer(TemperatureProvider, null, m_TimerDueTime, m_TimerInterval);
}
public async void Run(IBackgroundTaskInstance taskInstance)
{
m_Deferral = taskInstance.GetDeferral();
taskInstance.Canceled += TaskInstanceCanceled;
// initialize I2C
var i2cSettings = new I2cConnectionSettings(BMP280.Address)
{
BusSpeed = I2cBusSpeed.FastMode,
SharingMode = I2cSharingMode.Shared,
};
var selector = I2cDevice.GetDeviceSelector(m_DeviceSelector);
var deviceInformation = await DeviceInformation.FindAllAsync(selector);
m_Device = await I2cDevice.FromIdAsync(deviceInformation[0].Id, i2cSettings);
// initialize sensor
m_Sensor = new BMP280(m_Device);
await m_Sensor.PowerUp();
// initialize MQTT
try
{
m_Client = new MqttClient(m_Host);
m_Client.Connect(m_ClientId);
}
catch (MqttConnectionException ex)
{
// ignore connection exception and retry to connect later
Debug.WriteLine("Cannot connect to MQTT broker: " + ex.Message);
m_Client = null;
}
var appService = taskInstance.TriggerDetails as AppServiceTriggerDetails;
if (appService != null && appService.Name == m_ServiceName)
{
m_AppServiceConnection = appService.AppServiceConnection;
m_AppServiceConnection.RequestReceived += OnRequestReceived;
}
m_Client.Publish(m_ServiceTopic, Encoding.UTF8.GetBytes(DateTime.Now.ToUniversalTime().ToString("O")), m_QoS, true);
// start timer
m_Timer = new Timer(TemperatureProvider, null, m_TimerDueTime, m_TimerInterval);
}
