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MagneticSwitch.cs
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MagneticSwitch.cs
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using Meadow.Hardware;
using Meadow.Peripherals.Switches;
using System;
using System.Threading.Tasks;
namespace Meadow.Foundation.Grove.Sensors.Switches
{
/// <summary>
/// Represents a Magnetic Switch
/// </summary>
public class MagneticSwitch : ISwitch
{
readonly IDigitalInputPort port;
/// <summary>
/// Returns the state of the switch
/// </summary>
public bool IsOn => port.State;
/// <summary>
/// Event triggered when status has changed
/// </summary>
public event EventHandler Changed = delegate { };
/// <summary>
/// Creates a MagneticSwitch driver
/// </summary>
/// <param name="signalPort"></param>
public MagneticSwitch(IDigitalInterruptPort signalPort)
{
port = signalPort;
signalPort.Changed += SignalPortChanged;
}
/// <summary>
/// Creates a MagneticSwitch driver
/// </summary>
/// <param name="inputPin"></param>
public MagneticSwitch(IPin inputPin)
: this(inputPin.CreateDigitalInterruptPort(
InterruptMode.EdgeBoth,
ResistorMode.InternalPullUp,
TimeSpan.Zero,
TimeSpan.FromMilliseconds(25)))
{ }
private void SignalPortChanged(object sender, DigitalPortResult e)
{
Changed?.Invoke(this, EventArgs.Empty);
}
/// <summary>
/// Returns the state of the switch
/// </summary>
/// <returns></returns>
public Task<bool> Read()
{
return Task.FromResult(IsOn);
}
}
}