Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Characteristic	Locus
Inheritance	object ObservableBase<Length> SamplingSensorBase<Length> PollingSensorBase<Length> > Me007ys
Implements	IObservable<IChangeResult<Length>> IRangeFinder ISamplingSensor<Length> ISensor<Length> ISleepAwarePeripheral IDisposable
Inherited Members	SamplingSensorBase<Length>.samplingLock SamplingSensorBase<Length>.SamplingTokenSource SamplingSensorBase<Length>.Conditions SamplingSensorBase<Length>.IsSampling SamplingSensorBase<Length>.UpdateInterval SamplingSensorBase<Length>.Updated ObservableBase<Length>.NotifyObservers(IChangeResult<Length>) ObservableBase<Length>.Subscribe(IObserver<IChangeResult<Length>>) ObservableBase<Length>.CreateObserver(Action<IChangeResult<Length>>, Predicate<IChangeResult<Length>>) ObservableBase<Length>.observers object.Equals(object) object.Equals(object, object) object.GetHashCode() object.GetType() object.MemberwiseClone() object.ReferenceEquals(object, object) object.ToString()
Namespace	Meadow.Foundation.Sensors.Distance
Assembly	Me007ys.dll

Syntax

public class Me007ys : PollingSensorBase<Length>, IObservable<IChangeResult<Length>>, IRangeFinder, ISamplingSensor<Length>, ISensor<Length>, ISleepAwarePeripheral, IDisposable

Constructors

Me007ys(ISerialPort)

Creates a new ME007YS object communicating over serial

Declaration

public Me007ys(ISerialPort serialMessage)

Parameters

Type	Name	Description
ISerialPort	serialMessage	The serial message port

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Me007ys(IMeadowDevice, SerialPortName)

Creates a new ME007YS object communicating over serial

Declaration

public Me007ys(IMeadowDevice device, SerialPortName serialPortName)

Parameters

Type	Name	Description
IMeadowDevice	device	The device connected to the sensor
SerialPortName	serialPortName	The serial port

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Properties

Distance

Distance from sensor to object

Declaration

public Length? Distance { get; protected set; }

Property Value

Type	Description
Length?

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

OutOfRangeValue

Value returned when the sensor cannot determine the distance

Declaration

public Length OutOfRangeValue { get; }

Property Value

Type	Description
Length

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Methods

AfterWake(CancellationToken)

Called after the platform returns to Wake state

Declaration

public Task AfterWake(CancellationToken cancellationToken)

Parameters

Type	Name	Description
CancellationToken	cancellationToken

Returns

Type	Description
Task

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

BeforeSleep(CancellationToken)

Called before the platform goes into Sleep state

Declaration

public Task BeforeSleep(CancellationToken cancellationToken)

Parameters

Type	Name	Description
CancellationToken	cancellationToken

Returns

Type	Description
Task

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration

public void Dispose()

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Dispose(bool)

Dispose of the object

Declaration

protected virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
bool	disposing	Is disposing

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

MeasureDistance()

Start a distance measurement

Declaration

public void MeasureDistance()

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

RaiseEventsAndNotify(IChangeResult<Length>)

Raise distance change event for subscribers

Declaration

protected override void RaiseEventsAndNotify(IChangeResult<Length> changeResult)

Parameters

Type	Name	Description
IChangeResult<Length>	changeResult

Overrides

Meadow.Foundation.SamplingSensorBase<Meadow.Units.Length>.RaiseEventsAndNotify(Meadow.IChangeResult<Meadow.Units.Length>)

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Read()

Convenience method to get the current sensor reading

Declaration

public override Task<Length> Read()

Returns

Type	Description
Task<Length>

Overrides

Meadow.Foundation.SamplingSensorBase<Meadow.Units.Length>.Read()

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

ReadSensor()

Read the distance from the sensor

Declaration

protected override Task<Length> ReadSensor()

Returns

Type	Description
Task<Length>

Overrides

Meadow.Foundation.SamplingSensorBase<Meadow.Units.Length>.ReadSensor()

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

StartUpdating(TimeSpan?)

Start updating distances

Declaration

public override void StartUpdating(TimeSpan? updateInterval)

Parameters

Type	Name	Description
TimeSpan?	updateInterval	The interval used to notify external subscribers

Overrides

PollingSensorBase<Length>.StartUpdating(TimeSpan?)

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

StopUpdating()

Stop sampling

Declaration

public override void StopUpdating()

Overrides

Meadow.Foundation.PollingSensorBase<Meadow.Units.Length>.StopUpdating()

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub

Events

DistanceUpdated

Raised when the value of the reading changes

Declaration

public event EventHandler<IChangeResult<Length>> DistanceUpdated

Event Type

Type	Description
EventHandler<IChangeResult<Length>>

Remarks

Me007ys
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Me007ys me007ys;

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

    me007ys = new Me007ys(Device, Device.PlatformOS.GetSerialPortName("COM1"));

    var consumer = Me007ys.CreateObserver(
        handler: result =>
        {
            Resolver.Log.Info($"Observer: Distance changed by threshold; new distance: {result.New.Centimeters:N1}cm, old: {result.Old?.Centimeters:N1}cm");
        },
        filter: result =>
        {
            if (result.Old is { } old)
            {
                return Math.Abs((result.New - old).Centimeters) > 0.5;
            }
            return false;
        }
    );
    me007ys.Subscribe(consumer);

    me007ys.DistanceUpdated += Me007y_DistanceUpdated;

    return Task.CompletedTask;
}

public override async Task Run()
{
    var distance = await me007ys.Read();
    Resolver.Log.Info($"Initial distance is: {distance.Centimeters:N1}cm / {distance.Inches:N1}in");

    me007ys.StartUpdating(TimeSpan.FromSeconds(2));
}

private void Me007y_DistanceUpdated(object sender, IChangeResult<Length> e)
{
    Resolver.Log.Info($"Distance: {e.New.Centimeters:N1}cm / {e.New.Inches:N1}in");
}

Sample project(s) available on GitHub