Class KeyScanButton

Represents a AS1115 key scan button

Assembly: As1115.dll

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public class KeyScanButton : IButton, ISensor<bool>, ISensor

Implements:
Meadow.Peripherals.Sensors.Buttons.IButton, Meadow.Peripherals.Sensors.ISensor<System.Boolean>, Meadow.Peripherals.Sensors.ISensor

Properties

LongClickedThreshold

Get or set the long click threshold

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public TimeSpan LongClickedThreshold { get; set; }

State

Get current button state

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public bool State { get; }

Fields

buttonPressStart

Maximum DateTime value when the button was just pushed

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protected DateTime buttonPressStart

Methods

Update(bool)

Update the button state true for pressed, false for released

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public void Update(bool state)

Parameters

Type	Name
System.Boolean	state

RaiseClicked()

Raised when the button circuit is re-opened after it has been closed (at the end of a �press�).

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protected virtual void RaiseClicked()

RaisePressStarted()

Raised when a press starts (the button is pushed down; circuit is closed).

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protected virtual void RaisePressStarted()

RaisePressEnded()

Raised when a press ends (the button is released; circuit is opened).

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protected virtual void RaisePressEnded()

RaiseLongClicked()

Raised when the button circuit is pressed for at least 500ms.

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protected virtual void RaiseLongClicked()

Read()

Convenience method to get the current sensor reading

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public Task<bool> Read()

Returns

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

Events

PressStarted

Raised when a press starts (the button is pushed down)

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public event EventHandler PressStarted

Event Type

System.EventHandler

PressEnded

Raised when a press ends (the button is released)

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public event EventHandler PressEnded

Event Type

System.EventHandler

Clicked

Raised when the button circuit is re-opened after it has been closed (at the end of a press)

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public event EventHandler Clicked

Event Type

System.EventHandler

LongClicked

Raised when the button circuit is pressed for LongPressDuration

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public event EventHandler LongClicked

Event Type

System.EventHandler

Implements

• Meadow.Peripherals.Sensors.Buttons.IButton
• Meadow.Peripherals.Sensors.ISensor<System.Boolean>
• Meadow.Peripherals.Sensors.ISensor