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Class NextPm

Represents a TERA Sensor NextPM serial particulate matter sensor

Assembly: NextPm.dll
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Declaration
public class NextPm : PollingSensorBase<(ParticulateReading? reading10s, ParticulateReading? reading1min, ParticulateReading? reading15min, Temperature? temperature, RelativeHumidity? humidity)>, IObservable<IChangeResult<(ParticulateReading? reading10s, ParticulateReading? reading1min, ParticulateReading? reading15min, Temperature? temperature, RelativeHumidity? humidity)>>, ISamplingSensor<(ParticulateReading? reading10s, ParticulateReading? reading1min, ParticulateReading? reading15min, Temperature? temperature, RelativeHumidity? humidity)>, ISensor<(ParticulateReading? reading10s, ParticulateReading? reading1min, ParticulateReading? reading15min, Temperature? temperature, RelativeHumidity? humidity)>, ISensor, ISamplingSensor, IDisposable, IPowerControllablePeripheral

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

Implements:
System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>>, Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>, Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>, Meadow.Peripherals.Sensors.ISensor, Meadow.Peripherals.Sensors.ISamplingSensor, System.IDisposable, Meadow.IPowerControllablePeripheral

Properties

IsDisposed

Returns true if the object is disposed, otherwise false

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Declaration
public bool IsDisposed { get; }

Methods

GetFirmwareVersion()

Gets the sensor's firmware

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Declaration
public Task<short> GetFirmwareVersion()
Returns

System.Threading.Tasks.Task<System.Int16>: The sensor's firmware version### IsAsleep() Checks to see if the sensor is in Sleep mode

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Declaration
public Task<bool> IsAsleep()
Returns

System.Threading.Tasks.Task<System.Boolean>: <b>True</b> if the sensor is in Sleep mode### PowerOff() Puts the device into Sleep mode

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Declaration
public Task PowerOff()
Returns

System.Threading.Tasks.Task

PowerOn()

Wakes the device from Sleep mode

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Declaration
public Task PowerOn()
Returns

System.Threading.Tasks.Task

GetFanSpeed()

Gets the fan speed (in percentage)

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Declaration
public Task<int> GetFanSpeed()
Returns

System.Threading.Tasks.Task<System.Int32>

SetFanSpeed(int)

Sets the sensor fan speed (in percentage)

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Declaration
public Task SetFanSpeed(int speedPercent)
Returns

System.Threading.Tasks.Task

Parameters
TypeName
System.Int32speedPercent
Exceptions

System.ArgumentOutOfRangeException

GetTemperatureAndHumidity()

Gets the sensor's current Temperature and Humidity readings

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Declaration
public Task<(Temperature temperature, RelativeHumidity humidity)> GetTemperatureAndHumidity()
Returns

System.Threading.Tasks.Task<System.ValueTuple<Meadow.Units.Temperature,Meadow.Units.RelativeHumidity>>

Get10SecondAverageReading()

Gets the average particulate reading for the past 10 seconds

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Declaration
public Task<ParticulateReading> Get10SecondAverageReading()
Returns

System.Threading.Tasks.Task<Meadow.Foundation.Sensors.Environmental.ParticulateReading>

Get1MinuteAverageReading()

Gets the average particulate reading for the past 60 seconds

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Declaration
public Task<ParticulateReading> Get1MinuteAverageReading()
Returns

System.Threading.Tasks.Task<Meadow.Foundation.Sensors.Environmental.ParticulateReading>

Get15MinuteAverageReading()

Gets the average particulate reading for the past 15 minutes

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Declaration
public Task<ParticulateReading> Get15MinuteAverageReading()
Returns

System.Threading.Tasks.Task<Meadow.Foundation.Sensors.Environmental.ParticulateReading>

RaiseEventsAndNotify(IChangeResult<(ParticulateReading? reading10s, ParticulateReading? reading1min, ParticulateReading? reading15min, Temperature? temperature, RelativeHumidity? humidity)>)

Notify observers

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Declaration
protected override void RaiseEventsAndNotify(IChangeResult<(ParticulateReading? reading10s, ParticulateReading? reading1min, ParticulateReading? reading15min, Temperature? temperature, RelativeHumidity? humidity)> changeResult)
Parameters
TypeNameDescription
Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>changeResultprovides new and old values

ReadSensor()

Read value from sensor

View Source
Declaration
protected override Task<(ParticulateReading? reading10s, ParticulateReading? reading1min, ParticulateReading? reading15min, Temperature? temperature, RelativeHumidity? humidity)> ReadSensor()
Returns

System.Threading.Tasks.Task<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>: unitized value### Dispose(bool) Dispose of the object

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Declaration
protected virtual void Dispose(bool disposing)
Parameters
TypeNameDescription
System.BooleandisposingIs disposing

Dispose()

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

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Declaration
public void Dispose()

Events

Readings10sUpdated

Raised when a new 10-second average reading is taken

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Declaration
public event EventHandler<IChangeResult<ParticulateReading>> Readings10sUpdated
Event Type

System.EventHandler<Meadow.IChangeResult<Meadow.Foundation.Sensors.Environmental.ParticulateReading>>

Readings1minUpdated

Raised when a new 1-minute average reading is taken

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Declaration
public event EventHandler<IChangeResult<ParticulateReading>> Readings1minUpdated
Event Type

System.EventHandler<Meadow.IChangeResult<Meadow.Foundation.Sensors.Environmental.ParticulateReading>>

Readings15minUpdated

Raised when a new 15-minute average reading is taken

View Source
Declaration
public event EventHandler<IChangeResult<ParticulateReading>> Readings15minUpdated
Event Type

System.EventHandler<Meadow.IChangeResult<Meadow.Foundation.Sensors.Environmental.ParticulateReading>>

TemperatureUpdated

Raised when a new temperature reading is taken

View Source
Declaration
public event EventHandler<IChangeResult<Temperature>> TemperatureUpdated
Event Type

System.EventHandler<Meadow.IChangeResult<Meadow.Units.Temperature>>

HumidityUpdated

Raised when a new humidity reading is taken

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Declaration
public event EventHandler<IChangeResult<RelativeHumidity>> HumidityUpdated
Event Type

System.EventHandler<Meadow.IChangeResult<Meadow.Units.RelativeHumidity>>

Implements

  • System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>>
  • Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>
  • Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Foundation.Sensors.Environmental.ParticulateReading>,System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>
  • Meadow.Peripherals.Sensors.ISensor
  • Meadow.Peripherals.Sensors.ISamplingSensor
  • System.IDisposable
  • Meadow.IPowerControllablePeripheral