Class AnalogLightSensor

Represents an analog light sensor

Assembly: Meadow.Foundation.dll

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

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

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protected IAnalogInputPort AnalogInputPort { get; }

LuminanceCalibration

Illuminance sensor calibration

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

Illuminance

Current illuminance value read by sensor

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public Illuminance? Illuminance { get; }

IsDisposed

Is the object disposed

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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.

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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.

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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.

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public override void StopUpdating()

VoltageToLuminance(Voltage)

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

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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.

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public void Dispose()

Dispose(bool)

Dispose of the object

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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