Meadow.Foundation.Sensors.Switches.SpdtSwitch

SpdtSwitch
Status
Source code	GitHub
NuGet package

SpdtSwitch represents a simple, two position, Single-Pole-Dual-Throw (SPDT) switch that closes a circuit to either ground/common or high depending on position.

The following example shows how to use a SPDT switch:

public class MeadowApp : App<F7Micro, MeadowApp>
{
    DigitalOutputPort _blueLED;
    SpdtSwitch _spdtSwitch;

    public MeadowApp()
    {
        _blueLED = new DigitalOutputPort(Device.Pins.OnboardLEDBlue, true);

        _spdtSwitch = new SpdtSwitch(Device.Pins.D13);
        _spdtSwitch.Changed += (s, e) =>
        {
            Console.WriteLine("Switch Changed");
            Console.WriteLine("Switch on: " + _spdtSwitch.IsOn.ToString());
        };

        Console.WriteLine("Initial switch state, isOn: " + _spdtSwitch.IsOn.ToString());
    }
}

Sample projects available on GitHub

Code Example

protected SpdtSwitch spdtSwitch;

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

    spdtSwitch = new SpdtSwitch(Device.CreateDigitalInterruptPort(Device.Pins.D15, InterruptMode.EdgeBoth, ResistorMode.InternalPullDown));
    spdtSwitch.Changed += (s, e) =>
    {
        Resolver.Log.Info(spdtSwitch.IsOn ? "Switch is on" : "Switch is off");
    };

    Resolver.Log.Info("SpdtSwitch ready...");

    return Task.CompletedTask;
}

Sample project(s) available on GitHub

Wiring Example

Class SpdtSwitch

Represents a simple, two position, Single-Pole-Dual-Throw (SPDT) switch that closes a circuit to either ground/common or high depending on position

Assembly: Meadow.Foundation.dll

View Source

Declaration

public class SpdtSwitch : ISwitch, ISensor<bool>, ISensor, IDisposable

Implements:
Meadow.Peripherals.Switches.ISwitch, Meadow.Peripherals.Sensors.ISensor<System.Boolean>, Meadow.Peripherals.Sensors.ISensor, System.IDisposable

Properties

IsOn

Describes whether or not the switch circuit is closed/connected (IsOn = true), or open (IsOn = false).

View Source

Declaration

public bool IsOn { get; protected set; }

DigitalInputPort

Returns the DigitalInputPort.

View Source

Declaration

protected IDigitalInterruptPort DigitalInputPort { get; set; }

IsDisposed

Is the object disposed

View Source

Declaration

public bool IsDisposed { get; }

Methods

DigitalInChanged(object, DigitalPortResult)

Event handler when switch value has been changed

View Source

Declaration

protected void DigitalInChanged(object sender, DigitalPortResult e)

Parameters

Type	Name
System.Object	sender
Meadow.Hardware.DigitalPortResult	e

Read()

Convenience method to get the current sensor reading

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Declaration

public Task<bool> Read()

Returns

System.Threading.Tasks.Task<System.Boolean>

Dispose()

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

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Declaration

public void Dispose()

Dispose(bool)

Dispose of the object

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Declaration

protected virtual void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing	Is disposing

Events

Changed

Raised when the switch circuit is opened or closed.

View Source

Declaration

public event EventHandler Changed

Event Type

System.EventHandler

Implements

• Meadow.Peripherals.Switches.ISwitch
• Meadow.Peripherals.Sensors.ISensor<System.Boolean>
• Meadow.Peripherals.Sensors.ISensor
• System.IDisposable