.. currentmodule:: pyb

class Switch -- switch object

A Switch object is used to control a push-button switch.

Usage:

sw = pyb.Switch() # create a switch object
sw.value() # get state (True if pressed, False otherwise)
sw() # shorthand notation to get the switch state
sw.callback(f) # register a callback to be called when the
 # switch is pressed down
sw.callback(None) # remove the callback

Example:

pyb.Switch().callback(lambda: pyb.LED(1).toggle())

Constructors

Create and return a switch object.

Methods

.. method:: Switch.__call__()

 Call switch object directly to get its state: ``True`` if pressed down,
 ``False`` otherwise.

.. method:: Switch.value()

 Get the switch state. Returns ``True`` if pressed down, otherwise ``False``.

.. method:: Switch.callback(fun)

 Register the given function to be called when the switch is pressed down.
 If ``fun`` is ``None``, then it disables the callback.

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