Characteristic	Locus
Inheritance	object ObservableBase<Temperature> SamplingSensorBase<Temperature> Thermistor > SteinhartHartCalculatedThermistor
Implements	IObservable<IChangeResult<Temperature>> ITemperatureSensor ISamplingSensor<Temperature> ISensor<Temperature>
Inherited Members	Thermistor.AnalogInputPort Thermistor.NominalTemperature Thermistor.StartUpdating(TimeSpan?) Thermistor.StopUpdating() Thermistor.Temperature Thermistor.TemperatureUpdated SamplingSensorBase<Temperature>.samplingLock SamplingSensorBase<Temperature>.Updated SamplingSensorBase<Temperature>.SamplingTokenSource SamplingSensorBase<Temperature>.Conditions SamplingSensorBase<Temperature>.IsSampling SamplingSensorBase<Temperature>.UpdateInterval SamplingSensorBase<Temperature>.RaiseEventsAndNotify(IChangeResult<Temperature>) SamplingSensorBase<Temperature>.Read() ObservableBase<Temperature>.observers ObservableBase<Temperature>.NotifyObservers(IChangeResult<Temperature>) ObservableBase<Temperature>.Subscribe(IObserver<IChangeResult<Temperature>>) ObservableBase<Temperature>.CreateObserver(Action<IChangeResult<Temperature>>, Predicate<IChangeResult<Temperature>>) object.Equals(object) object.Equals(object, object) object.GetHashCode() object.GetType() object.MemberwiseClone() object.ReferenceEquals(object, object) object.ToString()
Namespace	Meadow.Foundation.Sensors.Temperature
Assembly	Thermistor.dll

Syntax

public class SteinhartHartCalculatedThermistor : Thermistor, IObservable<IChangeResult<Temperature>>, ITemperatureSensor, ISamplingSensor<Temperature>, ISensor<Temperature>

Constructors

SteinhartHartCalculatedThermistor(IAnalogInputPort, Resistance)

Creates a new SteinhartHartCalculatedThermistor object using the provided analog input and the thermistor's nominal resistance (i.e. 10kOhm)

Declaration

public SteinhartHartCalculatedThermistor(IAnalogInputPort analogInput, Resistance nominalResistance)

Parameters

Type	Name	Description
IAnalogInputPort	analogInput	The analog input reading the thermistor voltage divider output
Resistance	nominalResistance	The nominal resistance of the thermistor (e.g. 10kOhm for a 10k thermistor)

Remarks

The fixed resistor value will be assumed to match the thermistor's nominal resistance

SteinhartHartCalculatedThermistor(IAnalogInputPort, Resistance, Resistance)

Creates a new SteinhartHartCalculatedThermistor object using the provided analog input and the thermistor's nominal resistance (i.e. 10kOhm) and the fixed resistor value of the voltage divider circuit.

Declaration

public SteinhartHartCalculatedThermistor(IAnalogInputPort analogInput, Resistance nominalResistance, Resistance seriesResistance)

Parameters

Type	Name	Description
IAnalogInputPort	analogInput	The analog input reading the thermistor voltage divider output
Resistance	nominalResistance	The nominal resistance of the thermistor (e.g. 10kOhm for a 10k thermistor)
Resistance	seriesResistance	The resistance of the fixed-value series resistor in your voltage divider circuit

SteinhartHartCalculatedThermistor(IAnalogInputPort, Resistance, Resistance, double)

Creates a new SteinhartHartCalculatedThermistor object using the provided analog input and the thermistor's nominal resistance (i.e. 10kOhm) and the fixed resistor value of the voltage divider circuit.

Declaration

public SteinhartHartCalculatedThermistor(IAnalogInputPort analogInput, Resistance nominalResistance, Resistance seriesResistance, double betaCoefficient)

Parameters

Type	Name	Description
IAnalogInputPort	analogInput	The analog input reading the thermistor voltage divider output
Resistance	nominalResistance	The nominal resistance of the thermistor (e.g. 10kOhm for a 10k thermistor)
Resistance	seriesResistance	The resistance of the fixed-value series resistor in your voltage divider circuit
double	betaCoefficient	The beta coefficient of the thermistor used in the Steinhart-Hart equation

SteinhartHartCalculatedThermistor(IAnalogInputPort, Resistance, double)

Creates a new SteinhartHartCalculatedThermistor object using the provided analog input and the thermistor's nominal resistance (i.e. 10kOhm) and the fixed resistor value of the voltage divider circuit.

Declaration

public SteinhartHartCalculatedThermistor(IAnalogInputPort analogInput, Resistance nominalResistance, double betaCoefficient)

Parameters

Type	Name	Description
IAnalogInputPort	analogInput	The analog input reading the thermistor voltage divider output
Resistance	nominalResistance	The nominal resistance of the thermistor (e.g. 10kOhm for a 10k thermistor)
double	betaCoefficient	The beta coefficient of the thermistor used in the Steinhart-Hart equation

Remarks

The fixed resistor value will be assumed to match the thermistor's nominal resistance

Fields

DefaultBetaCoefficient

The common default beta coefficient (3950) for many thermistors

Declaration

public const double DefaultBetaCoefficient = 3950

Field Value

Type	Description
double

Properties

BetaCoefficient

Gets the beta coefficient of the thermistor used in the Steinhart-Hart equation

Declaration

public double BetaCoefficient { get; }

Property Value

Type	Description
double

NominalResistance

Gets the nominal resistance of the thermistor (e.g. 10kOhm for a 10k thermistor)

Declaration

public override Resistance NominalResistance { get; }

Property Value

Type	Description
Resistance

Overrides

Thermistor.NominalResistance

SeriesResistance

Gets the resistance of the fixed-value series resistor in your voltage divider circuit

Declaration

public Resistance SeriesResistance { get; }

Property Value

Type	Description
Resistance

Methods

ReadSensor()

Update the Temperature property

Declaration

protected override Task<Temperature> ReadSensor()

Returns

Type	Description
Task<Temperature>

Overrides

SamplingSensorBase<Temperature>.ReadSensor()