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Class Si70xx

Provide access to the Si70xx series (Si7020, Si7021, and Si7030) temperature and humidity sensors

Assembly: Si70xx.dll​
View Source​
Declaration
public class Si70xx : ByteCommsSensorBase<(Temperature? Temperature, RelativeHumidity? Humidity)>, IObservable<IChangeResult<(Temperature? Temperature, RelativeHumidity? Humidity)>>, ISamplingSensor<(Temperature? Temperature, RelativeHumidity? Humidity)>, ISensor<(Temperature? Temperature, RelativeHumidity? Humidity)>, IDisposable, ITemperatureSensor, ISamplingSensor<Temperature>, ISensor<Temperature>, IHumiditySensor, ISamplingSensor<RelativeHumidity>, ISensor<RelativeHumidity>, ISensor, ISamplingSensor, II2cPeripheral

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

Implements:

Expand

System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>>, Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>, Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>, System.IDisposable, Meadow.Peripherals.Sensors.ITemperatureSensor, Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Temperature>, Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Temperature>, Meadow.Peripherals.Sensors.Atmospheric.IHumiditySensor, Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.RelativeHumidity>, Meadow.Peripherals.Sensors.ISensor<Meadow.Units.RelativeHumidity>, Meadow.Peripherals.Sensors.ISensor, Meadow.Peripherals.Sensors.ISamplingSensor, Meadow.Hardware.II2cPeripheral

Properties​

Temperature​

The temperature from the last reading

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Declaration
public Temperature? Temperature { get; }

Humidity​

The humidity, in percent relative humidity, from the last reading

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Declaration
public RelativeHumidity? Humidity { get; }

SerialNumber​

Serial number of the device

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Declaration
public ulong SerialNumber { get; }

SensorType​

Device type as extracted from the serial number

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Declaration
public Si70xx.DeviceType SensorType { get; }

FirmwareRevision​

Firmware revision of the sensor

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Declaration
public byte FirmwareRevision { get; }

DefaultI2cAddress​

The default I2C address for the peripheral

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Declaration
public byte DefaultI2cAddress { get; }

Methods​

Reset()​

Reset the sensor

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Declaration
protected void Reset()

Initialize()​

Initialize the sensor

View Source​
Declaration
protected void Initialize()

ReadSensor()​

Reads data from the sensor

View Source​
Declaration
protected override Task<(Temperature? Temperature, RelativeHumidity? Humidity)> ReadSensor()
Returns​

System.Threading.Tasks.Task<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>: The latest sensor reading### RaiseEventsAndNotify(IChangeResult<(Temperature? Temperature, RelativeHumidity? Humidity)>) Inheritance-safe way to raise events and notify observers.

View Source​
Declaration
protected override void RaiseEventsAndNotify(IChangeResult<(Temperature? Temperature, RelativeHumidity? Humidity)> changeResult)
Parameters​
TypeName
Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>changeResult

Heater(bool)​

Turn the heater on or off

View Source​
Declaration
public void Heater(bool onOrOff)
Parameters​
TypeNameDescription
System.BooleanonOrOffHeater status, true = turn heater on, false = turn heater off.

Implements​

  • System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>>
  • Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>
  • Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Units.Temperature>,System.Nullable<Meadow.Units.RelativeHumidity>>>
  • System.IDisposable
  • Meadow.Peripherals.Sensors.ITemperatureSensor
  • Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Temperature>
  • Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Temperature>
  • Meadow.Peripherals.Sensors.Atmospheric.IHumiditySensor
  • Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.RelativeHumidity>
  • Meadow.Peripherals.Sensors.ISensor<Meadow.Units.RelativeHumidity>
  • Meadow.Peripherals.Sensors.ISensor
  • Meadow.Peripherals.Sensors.ISamplingSensor
  • Meadow.Hardware.II2cPeripheral