Buttons
There are two buttons on the board, called button_a
and button_b
.
Attributes
- button_a
A
Button
instance (see below) representing the left button.
- button_b
Represents the right button.
Classes
- class Button
Represents a button.
Note
This class is not actually available to the user, it is only used by the two button instances, which are provided already initialized.
- is_pressed()
Returns
True
if the specified buttonbutton
is currently being held down, andFalse
otherwise.
- was_pressed()
Returns
True
orFalse
to indicate if the button was pressed (went from up to down) since the device started or the last time this method was called. Calling this method will clear the press state so that the button must be pressed again before this method will returnTrue
again.
- get_presses()
Returns the running total of button presses, and resets this total to zero before returning.
Example
import microbit
while True:
if microbit.button_a.is_pressed() and microbit.button_b.is_pressed():
microbit.display.scroll("AB")
break
elif microbit.button_a.is_pressed():
microbit.display.scroll("A")
elif microbit.button_b.is_pressed():
microbit.display.scroll("B")
microbit.sleep(100)