Class AnalogLightSensor

Represents an analog light sensor

Assembly: Meadow.Foundation.dll

View Source

Declaration

public class AnalogLightSensor : SamplingSensorBase<Illuminance>, IObservable<IChangeResult<Illuminance>>, ILightSensor, ISamplingSensor<Illuminance>, ISensor<Illuminance>, ISensor, ISamplingSensor, IDisposable

Inheritance: System.Object -> Meadow.Foundation.ObservableBase<UNIT>

Implements:
System.IObservable<Meadow.IChangeResult<Meadow.Units.Illuminance>>, Meadow.Peripherals.Sensors.Light.ILightSensor, Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Illuminance>, Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Illuminance>, Meadow.Peripherals.Sensors.ISensor, Meadow.Peripherals.Sensors.ISamplingSensor, System.IDisposable

Properties

AnalogInputPort

Analog port connected to sensor

View Source

Declaration

protected IAnalogInputPort AnalogInputPort { get; }

LuminanceCalibration

Illuminance sensor calibration

View Source

Declaration

public AnalogLightSensor.Calibration LuminanceCalibration { get; protected set; }

Illuminance

Current illuminance value read by sensor

View Source

Declaration

public Illuminance? Illuminance { get; }

IsDisposed

Is the object disposed

View Source

Declaration

public bool IsDisposed { get; }

Methods

ReadSensor()

Convenience method to get the current luminance. For frequent reads, use StartSampling() and StopSampling() in conjunction with the SampleBuffer.

View Source

Declaration

protected override Task<Illuminance> ReadSensor()

Returns

System.Threading.Tasks.Task<Meadow.Units.Illuminance>

StartUpdating(TimeSpan?)

Starts continuously sampling the sensor.

This method also starts raising Changed events and IObservable subscribers getting notified. Use the readIntervalDuration parameter to specify how often events and notifications are raised/sent.

View Source

Declaration

public override void StartUpdating(TimeSpan? updateInterval)

Parameters

Type	Name	Description
System.Nullable<System.TimeSpan>	updateInterval	A TimeSpan that specifies how long to

 wait between readings. This value influences how often `*Updated`
 events are raised and `IObservable` consumers are notified.
 The default is 5 seconds. |

StopUpdating()

Stops sampling the temperature.

View Source

Declaration

public override void StopUpdating()

VoltageToLuminance(Voltage)

Converts a voltage value to a level in centimeters, based on the current calibration values.

View Source

Declaration

protected Illuminance VoltageToLuminance(Voltage voltage)

Returns

Meadow.Units.Illuminance

Parameters

Type	Name
Meadow.Units.Voltage	voltage

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

View Source

Declaration

public void Dispose()

Dispose(bool)

Dispose of the object

View Source

Declaration

protected virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing	Is disposing

Implements

• System.IObservable<Meadow.IChangeResult<Meadow.Units.Illuminance>>
• Meadow.Peripherals.Sensors.Light.ILightSensor
• Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Illuminance>
• Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Illuminance>
• Meadow.Peripherals.Sensors.ISensor
• Meadow.Peripherals.Sensors.ISamplingSensor
• System.IDisposable