private Task UpdateLeds(ApplicationSensorReading sensorReading)
{
if (!_runningLedTest)
{
// ***
// *** Green is "all clear"
// ***
bool allClear = !sensorReading.IsCritical && !sensorReading.IsAboveUpperThreshold && !sensorReading.IsBelowLowerThreshold;
this.GreenPin.Write(allClear ? GpioPinValue.Low : GpioPinValue.High);
// ***
// *** Red is > upper threshold temperature
// ***
this.RedPin.Write(sensorReading.IsAboveUpperThreshold ? GpioPinValue.Low : GpioPinValue.High);
// ***
// *** Blue is < upper threshold temperature
// ***
this.BluePin.Write(sensorReading.IsBelowLowerThreshold ? GpioPinValue.Low : GpioPinValue.High);
// ***
// *** Yellow is >= critical temperature
// ***
this.YellowPin.Write(sensorReading.IsCritical ? GpioPinValue.Low : GpioPinValue.High);
// ***
// *** Cache the last sensor reading
// ***
_previousSensorReading = sensorReading;
}
return(Task.FromResult(0));
}
protected async Task OnTemperatureAlertChangedEvent()
{
try
{
if (this.TemperatureRepository != null)
{
this.EventAggregator.GetEvent <Events.TemperatureChangedEvent>().Publish(new TemperatureChangedEventArgs()
{
SensorReading = ApplicationSensorReading.FromIApplicationSensorReading(await this.TemperatureRepository.GetSensorReading())
});
}
}
catch (Exception ex)
{
this.EventAggregator.GetEvent <Events.DebugEvent>().Publish(new DebugEventArgs(ex));
}
}
private async Task SendSensorReading(bool force)
{
try
{
IApplicationSensorReading sensorReading = await this.GetSensorReading();
// ***
// *** Add the temperature thresholds
// ***
sensorReading.CriticalThreshold = this.Device.CriticalTemperatureThreshold;
sensorReading.LowerThreshold = this.Device.LowerTemperatureThreshold;
sensorReading.UpperThreshold = this.Device.UpperTemperatureThreshold;
// ***
// *** Only send the event when the reading has changed
// ***
if (force ||
_previousReading == null ||
_previousReading.Temperature != sensorReading.Temperature ||
_previousReading.IsCritical != sensorReading.IsCritical ||
_previousReading.IsAboveUpperThreshold != sensorReading.IsAboveUpperThreshold ||
_previousReading.IsBelowLowerThreshold != sensorReading.IsBelowLowerThreshold ||
_previousReading.CriticalThreshold != sensorReading.CriticalThreshold ||
_previousReading.LowerThreshold != sensorReading.LowerThreshold ||
_previousReading.UpperThreshold != sensorReading.UpperThreshold)
{
this.EventAggregator.GetEvent <Events.TemperatureChangedEvent>().Publish(new TemperatureChangedEventArgs()
{
SensorReading = ApplicationSensorReading.FromIApplicationSensorReading(sensorReading)
});
_previousReading = sensorReading;
}
}
catch (Exception ex)
{
this.EventAggregator.GetEvent <Events.DebugEvent>().Publish(new DebugEventArgs(ex));
}
}
