gamepadshift – Tracks button presses read through a shift register.¶
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GamePadShift(clock: digitalio.DigitalInOut, data: digitalio.DigitalInOut, latch: digitalio.DigitalInOut)¶
Scan buttons for presses through a shift register
Initializes button scanning routines.
DigitalInOutobjects connected to the shift register controlling the buttons.
The button presses are accumulated, until the
get_pressedmethod is called, at which point the button state is cleared, and the new button presses start to be recorded.
gamepadshift.GamePadShiftmay be used at a time.
get_pressed(self) → int¶
Get the status of buttons pressed since the last call and clear it.
Returns an 8-bit number, with bits that correspond to buttons, which have been pressed (or held down) since the last call to this function set to 1, and the remaining bits set to 0. Then it clears the button state, so that new button presses (or buttons that are held down) can be recorded for the next call.