Meadow.Foundation.Sensors.Atmospheric.AdafruitMPRLS

AdafruitMPRLS
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

AdafruitMPRLS sensor;

public override Task Initialize()
{
    Resolver.Log.Info("Initializing...");

    sensor = new AdafruitMPRLS(Device.CreateI2cBus());
    sensor.Updated += PressureSensor_Updated;

    return Task.CompletedTask;
}

public override Task Run()
{
    sensor.StartUpdating(TimeSpan.FromSeconds(1));

    return Task.CompletedTask;
}

void PressureSensor_Updated(object sender, IChangeResult<(Pressure? Pressure, Pressure? RawPsiMeasurement)> result)
{
    Resolver.Log.Info($"New pressure PSI: {result.New.Pressure?.Psi}, Old pressure PSI: {result.Old?.Pressure?.Psi}");

    Resolver.Log.Info($"Pressure in Pascal: {result.New.Pressure?.Pascal}");

    Resolver.Log.Info($"Raw sensor value: {result.New.RawPsiMeasurement?.Psi}");
}

Sample project(s) available on GitHub

Wiring Example

To wire a Adafruit MPRLS Sensor to your Meadow board, connect the following:

MPRLS	Meadow Pin
GND	GND
VCC	3.3V
SCL	D08
SDA	D07

Class AdafruitMPRLS

Device driver for the Adafruit MPRLS Ported Pressure Sensor Breakout

Assembly: AdafruitMPRLS.dll

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Declaration

public class AdafruitMPRLS : ByteCommsSensorBase<(Pressure? Pressure, Pressure? RawPsiMeasurement)>, IObservable<IChangeResult<(Pressure? Pressure, Pressure? RawPsiMeasurement)>>, ISamplingSensor<(Pressure? Pressure, Pressure? RawPsiMeasurement)>, ISensor<(Pressure? Pressure, Pressure? RawPsiMeasurement)>, IDisposable, II2cPeripheral, IBarometricPressureSensor, ISamplingSensor<Pressure>, ISensor<Pressure>, ISensor, ISamplingSensor

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

Implements:

Expand

System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>>, Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>, Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>, System.IDisposable, Meadow.Hardware.II2cPeripheral, Meadow.Peripherals.Sensors.Atmospheric.IBarometricPressureSensor, Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Pressure>, Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Pressure>, Meadow.Peripherals.Sensors.ISensor, Meadow.Peripherals.Sensors.ISamplingSensor

Properties

DefaultI2cAddress

The default I2C address for the peripheral

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Declaration

public byte DefaultI2cAddress { get; }

IsDevicePowered

Set by the sensor, to tell us it has power.

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Declaration

public bool IsDevicePowered { get; set; }

IsDeviceBusy

Set by the sensor, to tell us it's busy.

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Declaration

public bool IsDeviceBusy { get; set; }

HasMemoryIntegrityFailed

Set by the sensor, to tell us whether or not there's an issue with its own memory.

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Declaration

public bool HasMemoryIntegrityFailed { get; set; }

RawPsiMeasurement

Returns the current raw pressure value in pounds per square inch (PSI)

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Declaration

public Pressure? RawPsiMeasurement { get; }

Pressure

Returns the current pressure reading

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Declaration

public Pressure? Pressure { get; }

InternalMathSaturated

Indicates the sensor has reached its pressure limit.

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Declaration

public bool InternalMathSaturated { get; set; }

Methods

RaiseEventsAndNotify(IChangeResult<(Pressure? Pressure, Pressure? RawPsiMeasurement)>)

Notify subscribers of PressureUpdated event handler

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Declaration

protected override void RaiseEventsAndNotify(IChangeResult<(Pressure? Pressure, Pressure? RawPsiMeasurement)> changeResult)

Parameters

Type	Name
Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>	changeResult

ReadSensor()

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

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Declaration

protected override Task<(Pressure? Pressure, Pressure? RawPsiMeasurement)> ReadSensor()

Returns

System.Threading.Tasks.Task<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>

Implements

• System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>>
• Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>
• Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Units.Pressure>,System.Nullable<Meadow.Units.Pressure>>>
• System.IDisposable
• Meadow.Hardware.II2cPeripheral
• Meadow.Peripherals.Sensors.Atmospheric.IBarometricPressureSensor
• Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Pressure>
• Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Pressure>
• Meadow.Peripherals.Sensors.ISensor
• Meadow.Peripherals.Sensors.ISamplingSensor