public IObservable <double> WhenReadingTaken()
{
this.observable = this.observable ?? Observable.Create <double>(ob =>
{
var handler = new EventHandler <LightSensorDataUpdatedEventArgs>((sender, args) =>
ob.OnNext(args.Level)
);
var sensor = new LightSensor
{
Interval = 250
};
sensor.DataUpdated += handler;
sensor.Start();
return(() =>
{
sensor.Stop();
sensor.DataUpdated -= handler;
sensor.Dispose();
});
})
.Publish()
.RefCount();
return(this.observable);
}
public LightSensorExample()
{
var sensor = new LightSensor(Connectors.GPIO17);
sensor.Start();
Console.WriteLine("Light:");
for (int i = 0; i < 500; i++)
{
Console.WriteLine(sensor.Brightness);
Thread.Sleep(250);
}
}
/// <summary>
/// Starts sensor and registers listener to a sensor
/// </summary>
/// <param name="listener">Event handler to listen sensor events</param>
public void Start(EventHandler <SensorEventArgs> listener)
{
handler = (sender, e) =>
{
listener?.Invoke(this,
new SensorEventArgs(new List <float>()
{
e.Level
}));
};
sensor.DataUpdated += handler;
sensor.Start();
}
