Class Ens160
Represents an ENS160 Digital Metal-Oxide Multi-Gas Sensor
Assembly: Ens160.dll
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public class Ens160 : ByteCommsSensorBase<(Concentration? CO2Concentration, Concentration? EthanolConcentration, Concentration? TVOCConcentration)>, IObservable<IChangeResult<(Concentration? CO2Concentration, Concentration? EthanolConcentration, Concentration? TVOCConcentration)>>, ISamplingSensor<(Concentration? CO2Concentration, Concentration? EthanolConcentration, Concentration? TVOCConcentration)>, ISensor<(Concentration? CO2Concentration, Concentration? EthanolConcentration, Concentration? TVOCConcentration)>, IDisposable, ICO2ConcentrationSensor, ISamplingSensor<Concentration>, ISensor<Concentration>, ISensor, ISamplingSensor, II2cPeripheral
Inheritance: System.Object -> Meadow.Foundation.ObservableBase<UNIT> -> Meadow.Foundation.SamplingSensorBase<UNIT> -> Meadow.Foundation.PollingSensorBase<UNIT> -> Meadow.Foundation.ByteCommsSensorBase<UNIT>
Implements:
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System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>>>, Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>>, Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>>, System.IDisposable, Meadow.Peripherals.Sensors.Environmental.ICO2ConcentrationSensor, Meadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Concentration>, Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Concentration>, Meadow.Peripherals.Sensors.ISensor, Meadow.Peripherals.Sensors.ISamplingSensor, Meadow.Hardware.II2cPeripheral
Properties
Concentration
The current C02 concentration value
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public Concentration? Concentration { get; }
CO2Concentration
The current C02 concentration value
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public Concentration? CO2Concentration { get; }
EthanolConcentration
The current ethanol concentration value
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public Concentration? EthanolConcentration { get; }
TVOCConcentration
The current Total Volatile Organic Compounds (TVOC) concentration value
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public Concentration? TVOCConcentration { get; }
CurrentOperatingMode
The current device operating mode
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public Ens160.OperatingMode CurrentOperatingMode { get; set; }
DefaultI2cAddress
The default I2C address for the peripheral
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public byte DefaultI2cAddress { get; }
Methods
Initialize()
Initialize the sensor
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protected Task Initialize()
Returns
System.Threading.Tasks.Task
Reset()
Reset the sensor
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public Task Reset()
Returns
System.Threading.Tasks.Task
GetDeviceID()
Get the sensor ID from PART_ID register Default value is 0x0160 (352)
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public ushort GetDeviceID()
Returns
System.UInt16: ID as a ushort (2 bytes)### GetFirmwareVersion()
Get the sensor app / firmware version
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public (byte Major, byte Minor, byte Release) GetFirmwareVersion()
Returns
System.ValueTuple<System.Byte,System.Byte,System.Byte>: The major, minor, release values as a tuple of bytes### SetTemperature(Temperature)
Set ambient temperature
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public void SetTemperature(Temperature ambientTemperature)
Parameters
| Type | Name |
|---|---|
Meadow.Units.Temperature | ambientTemperature |
SetHumidity(RelativeHumidity)
Set relative humidity
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public void SetHumidity(RelativeHumidity humidity)
Parameters
| Type | Name |
|---|---|
Meadow.Units.RelativeHumidity | humidity |
GetAirQualityIndex()
Get the air quality index (AQI)
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public Ens160.UBAAirQualityIndex GetAirQualityIndex()
Returns
Meadow.Foundation.Sensors.Environmental.Ens160.UBAAirQualityIndex
GetTemperature()
Get the temperature used for calculations - taken from TEMP_IN if supplied
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public Temperature GetTemperature()
Returns
Meadow.Units.Temperature: Temperature### GetHumidity()
Get the relative humidity used in its calculations -b taken from RH_IN if supplied
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public RelativeHumidity GetHumidity()
Returns
Meadow.Units.RelativeHumidity
StartUpdating(TimeSpan?)
Starts updating the sensor on the updateInterval frequency specified
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public override void StartUpdating(TimeSpan? updateInterval = null)
Parameters
| Type | Name |
|---|---|
System.Nullable<System.TimeSpan> | updateInterval |
StopUpdating()
Stop updating the sensor The sensor will not respond to commands for 500ms The call will delay the calling thread for 500ms
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public override void StopUpdating()
ReadSensor()
Get Scdx40 C02 Gas Concentration and Update the Concentration property
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protected override Task<(Concentration? CO2Concentration, Concentration? EthanolConcentration, Concentration? TVOCConcentration)> ReadSensor()
Returns
System.Threading.Tasks.Task<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>>
RaiseEventsAndNotify(IChangeResult<(Concentration? CO2Concentration, Concentration? EthanolConcentration, Concentration? TVOCConcentration)>)
Raise change events for subscribers
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protected override void RaiseEventsAndNotify(IChangeResult<(Concentration? CO2Concentration, Concentration? EthanolConcentration, Concentration? TVOCConcentration)> changeResult)
Parameters
| Type | Name | Description |
|---|---|---|
Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>> | changeResult | The change result with the current sensor data |
Events
CO2ConcentrationUpdated
Raised when the CO2 concentration changes
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public event EventHandler<IChangeResult<Concentration>> CO2ConcentrationUpdated
Event Type
System.EventHandler<Meadow.IChangeResult<Meadow.Units.Concentration>>
EthanolConcentrationUpdated
Raised when the ethanol concentration changes
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public event EventHandler<IChangeResult<Concentration>> EthanolConcentrationUpdated
Event Type
System.EventHandler<Meadow.IChangeResult<Meadow.Units.Concentration>>
TVOCConcentrationUpdated
Raised when the Total Volatile Organic Compounds (TVOC) concentration changes
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public event EventHandler<IChangeResult<Concentration>> TVOCConcentrationUpdated
Event Type
System.EventHandler<Meadow.IChangeResult<Meadow.Units.Concentration>>
Implements
System.IObservable<Meadow.IChangeResult<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>>>Meadow.Peripherals.Sensors.ISamplingSensor<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>>Meadow.Peripherals.Sensors.ISensor<System.ValueTuple<System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>,System.Nullable<Meadow.Units.Concentration>>>System.IDisposableMeadow.Peripherals.Sensors.Environmental.ICO2ConcentrationSensorMeadow.Peripherals.Sensors.ISamplingSensor<Meadow.Units.Concentration>Meadow.Peripherals.Sensors.ISensor<Meadow.Units.Concentration>Meadow.Peripherals.Sensors.ISensorMeadow.Peripherals.Sensors.ISamplingSensorMeadow.Hardware.II2cPeripheral