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Class Hx711

24-Bit Dual-Channel ADC For Bridge Sensors

Assembly: Hx711.dll
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public class Hx711 : PollingSensorBase<Mass>, IObservable<IChangeResult<Mass>>, IMassSensor, ISamplingSensor<Mass>, ISensor<Mass>, ISensor, ISamplingSensor, IDisposable

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

Implements:
System.IObservable<Meadow.IChangeResult<Meadow.Units.Mass>>, Meadow.Peripherals.Sensors.Mass.IMassSensor, Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Mass>, Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Mass>, Meadow.Peripherals.Sensors.ISensor, Meadow.Peripherals.Sensors.ISamplingSensor, System.IDisposable

Properties

IsDisposed

Is the peripheral disposed

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public bool IsDisposed { get; }

IsSleeping

Is the peripheral sleeping

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public bool IsSleeping { get; }

Gain

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public Hx711.AdcGain Gain { get; }

TareValue

Gets/Sets Tare value

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public uint TareValue { get; set; }

DefaultSamplePeriod

Gets default sample period (1 Second)

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public TimeSpan DefaultSamplePeriod { get; }

Mass

The last read Mass

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public Mass? Mass { get; }

Methods

Sleep()

Puts the device into low-power sleep mode

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public void Sleep()

Wake()

Takes the device out of low-power sleep mode

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public void Wake()

Tare()

Tares the sensor, effectively setting the current weight reading to relative zero.

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public void Tare()

CalculateCalibrationFactor()

Calculates the calibration factor of the load cell. Call this method with a known weight on the sensor, and then use the returned value in a call to Meadow.Foundation.Sensors.LoadCell.Hx711.SetCalibrationFactor(System.Int32%2cMeadow.Units.Mass) before using the sensor.

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public int CalculateCalibrationFactor()
Returns

System.Int32

SetCalibrationFactor(int, Mass)

Sets the sensor's calibration factor based on a factor calculated with a know weight by calling Meadow.Foundation.Sensors.LoadCell.Hx711.CalculateCalibrationFactor().

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public void SetCalibrationFactor(int factor, Mass knownValue)
Parameters
TypeName
System.Int32factor
Meadow.Units.MassknownValue

ReadSensor()

Gets the current sensor weight

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protected override Task<Mass> ReadSensor()
Returns

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

Dispose(bool)

Dispose of the object

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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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public void Dispose()

Implements

  • System.IObservable<Meadow.IChangeResult<Meadow.Units.Mass>>
  • Meadow.Peripherals.Sensors.Mass.IMassSensor
  • Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Mass>
  • Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Mass>
  • Meadow.Peripherals.Sensors.ISensor
  • Meadow.Peripherals.Sensors.ISamplingSensor
  • System.IDisposable