1  # SPDX-FileCopyrightText: 2022 Dan Halbert for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  import keypad
 6  import board
 7  
 8  km = keypad.KeyMatrix(
 9      row_pins=(board.A0, board.A1, board.A2, board.A3),
10      column_pins=(board.D0, board.D1, board.D2),
11      # Allow 50 msecs to debounce.
12      interval=0.050,
13  )
14  
15  while True:
16      event = km.events.get()
17      if event:
18          print(event)