Remarks

Lm75
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Lm75 lm75;

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

    lm75 = new Lm75(Device.CreateI2cBus());

    var consumer = Lm75.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Temperature New Value { result.New.Celsius}C");
            Resolver.Log.Info($"Temperature Old Value { result.Old?.Celsius}C");
              },
        filter: null
    );
    lm75.Subscribe(consumer);

    lm75.TemperatureUpdated += (object sender, IChangeResult<Meadow.Units.Temperature> e) =>
    {
        Resolver.Log.Info($"Temperature Updated: {e.New.Celsius:n2}C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    var temp = await lm75.Read();
    Resolver.Log.Info($"Temperature New Value {temp.Celsius}C");

    lm75.StartUpdating();
}

Sample project(s) available on GitHub

Characteristic	Locus
Inheritance	object ObservableBase<Temperature> SamplingSensorBase<Temperature> PollingSensorBase<Temperature> ByteCommsSensorBase<Temperature> > Lm75
Implements	IObservable<IChangeResult<Temperature>> IDisposable ITemperatureSensor ISamplingSensor<Temperature> ISensor<Temperature> II2cPeripheral
Inherited Members	ByteCommsSensorBase<Temperature>.Init(int, int) ByteCommsSensorBase<Temperature>.Dispose(bool) ByteCommsSensorBase<Temperature>.Dispose() ByteCommsSensorBase<Temperature>.BusComms ByteCommsSensorBase<Temperature>.ReadBuffer ByteCommsSensorBase<Temperature>.WriteBuffer PollingSensorBase<Temperature>.StartUpdating(TimeSpan?) PollingSensorBase<Temperature>.StopUpdating() SamplingSensorBase<Temperature>.samplingLock SamplingSensorBase<Temperature>.Read() SamplingSensorBase<Temperature>.SamplingTokenSource SamplingSensorBase<Temperature>.Conditions SamplingSensorBase<Temperature>.IsSampling SamplingSensorBase<Temperature>.UpdateInterval SamplingSensorBase<Temperature>.Updated ObservableBase<Temperature>.NotifyObservers(IChangeResult<Temperature>) ObservableBase<Temperature>.Subscribe(IObserver<IChangeResult<Temperature>>) ObservableBase<Temperature>.CreateObserver(Action<IChangeResult<Temperature>>, Predicate<IChangeResult<Temperature>>) ObservableBase<Temperature>.observers 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	Lm75.dll

Syntax

public class Lm75 : ByteCommsSensorBase<Temperature>, IObservable<IChangeResult<Temperature>>, IDisposable, ITemperatureSensor, ISamplingSensor<Temperature>, ISensor<Temperature>, II2cPeripheral

Constructors

Lm75(II2cBus, byte)

Create a new TMP102 object using the default configuration for the sensor

Declaration

public Lm75(II2cBus i2cBus, byte address = 72)

Parameters

Type	Name	Description
II2cBus	i2cBus	The I2C bus
byte	address	I2C address of the sensor

Remarks

Lm75
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Lm75 lm75;

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

    lm75 = new Lm75(Device.CreateI2cBus());

    var consumer = Lm75.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Temperature New Value { result.New.Celsius}C");
            Resolver.Log.Info($"Temperature Old Value { result.Old?.Celsius}C");
              },
        filter: null
    );
    lm75.Subscribe(consumer);

    lm75.TemperatureUpdated += (object sender, IChangeResult<Meadow.Units.Temperature> e) =>
    {
        Resolver.Log.Info($"Temperature Updated: {e.New.Celsius:n2}C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    var temp = await lm75.Read();
    Resolver.Log.Info($"Temperature New Value {temp.Celsius}C");

    lm75.StartUpdating();
}

Sample project(s) available on GitHub

Properties

DefaultI2cAddress

The default I2C address for the peripheral

Declaration

public byte DefaultI2cAddress { get; }

Property Value

Type	Description
byte

Remarks

Lm75
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Lm75 lm75;

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

    lm75 = new Lm75(Device.CreateI2cBus());

    var consumer = Lm75.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Temperature New Value { result.New.Celsius}C");
            Resolver.Log.Info($"Temperature Old Value { result.Old?.Celsius}C");
              },
        filter: null
    );
    lm75.Subscribe(consumer);

    lm75.TemperatureUpdated += (object sender, IChangeResult<Meadow.Units.Temperature> e) =>
    {
        Resolver.Log.Info($"Temperature Updated: {e.New.Celsius:n2}C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    var temp = await lm75.Read();
    Resolver.Log.Info($"Temperature New Value {temp.Celsius}C");

    lm75.StartUpdating();
}

Sample project(s) available on GitHub

Temperature

The Temperature value from the last reading

Declaration

public Temperature? Temperature { get; protected set; }

Property Value

Type	Description
Temperature?

Remarks

Lm75
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Lm75 lm75;

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

    lm75 = new Lm75(Device.CreateI2cBus());

    var consumer = Lm75.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Temperature New Value { result.New.Celsius}C");
            Resolver.Log.Info($"Temperature Old Value { result.Old?.Celsius}C");
              },
        filter: null
    );
    lm75.Subscribe(consumer);

    lm75.TemperatureUpdated += (object sender, IChangeResult<Meadow.Units.Temperature> e) =>
    {
        Resolver.Log.Info($"Temperature Updated: {e.New.Celsius:n2}C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    var temp = await lm75.Read();
    Resolver.Log.Info($"Temperature New Value {temp.Celsius}C");

    lm75.StartUpdating();
}

Sample project(s) available on GitHub

Methods

RaiseEventsAndNotify(IChangeResult<Temperature>)

Raise events for subcribers and notify of value changes

Declaration

protected override void RaiseEventsAndNotify(IChangeResult<Temperature> changeResult)

Parameters

Type	Name	Description
IChangeResult<Temperature>	changeResult	The updated sensor data

Overrides

SamplingSensorBase<Temperature>.RaiseEventsAndNotify(IChangeResult<Temperature>)

Remarks

Lm75
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Lm75 lm75;

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

    lm75 = new Lm75(Device.CreateI2cBus());

    var consumer = Lm75.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Temperature New Value { result.New.Celsius}C");
            Resolver.Log.Info($"Temperature Old Value { result.Old?.Celsius}C");
              },
        filter: null
    );
    lm75.Subscribe(consumer);

    lm75.TemperatureUpdated += (object sender, IChangeResult<Meadow.Units.Temperature> e) =>
    {
        Resolver.Log.Info($"Temperature Updated: {e.New.Celsius:n2}C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    var temp = await lm75.Read();
    Resolver.Log.Info($"Temperature New Value {temp.Celsius}C");

    lm75.StartUpdating();
}

Sample project(s) available on GitHub

ReadSensor()

Update the Temperature property

Declaration

protected override Task<Temperature> ReadSensor()

Returns

Type	Description
Task<Temperature>

Overrides

SamplingSensorBase<Temperature>.ReadSensor()

Remarks

Lm75
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Lm75 lm75;

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

    lm75 = new Lm75(Device.CreateI2cBus());

    var consumer = Lm75.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Temperature New Value { result.New.Celsius}C");
            Resolver.Log.Info($"Temperature Old Value { result.Old?.Celsius}C");
              },
        filter: null
    );
    lm75.Subscribe(consumer);

    lm75.TemperatureUpdated += (object sender, IChangeResult<Meadow.Units.Temperature> e) =>
    {
        Resolver.Log.Info($"Temperature Updated: {e.New.Celsius:n2}C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    var temp = await lm75.Read();
    Resolver.Log.Info($"Temperature New Value {temp.Celsius}C");

    lm75.StartUpdating();
}

Sample project(s) available on GitHub

Events

TemperatureUpdated

Raised when the value of the reading changes

Declaration

public event EventHandler<IChangeResult<Temperature>> TemperatureUpdated

Event Type

Type	Description
EventHandler<IChangeResult<Temperature>>

Remarks

Lm75
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Lm75 lm75;

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

    lm75 = new Lm75(Device.CreateI2cBus());

    var consumer = Lm75.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Temperature New Value { result.New.Celsius}C");
            Resolver.Log.Info($"Temperature Old Value { result.Old?.Celsius}C");
              },
        filter: null
    );
    lm75.Subscribe(consumer);

    lm75.TemperatureUpdated += (object sender, IChangeResult<Meadow.Units.Temperature> e) =>
    {
        Resolver.Log.Info($"Temperature Updated: {e.New.Celsius:n2}C");
    };
    return Task.CompletedTask;
}

public override async Task Run()
{
    var temp = await lm75.Read();
    Resolver.Log.Info($"Temperature New Value {temp.Celsius}C");

    lm75.StartUpdating();
}

Sample project(s) available on GitHub