68 lines
1.9 KiB
Python
68 lines
1.9 KiB
Python
# SPDX-FileCopyrightText: 2017 Limor Fried for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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import digitalio
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from adafruit_hid.keyboard import Keyboard
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from adafruit_hid.keycode import Keycode
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import board
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import usb_hid
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# A simple neat keyboard demo in circuitpython
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# The button pins we'll use, each will have an internal pullup
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buttonpins = [board.D12, board.D11, board.D10, board.D9, board.D6, board.D5]
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ledpins = [board.A0, board.A1, board.A2, board.A3, board.A4, board.A5]
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# The keycode sent for each button, will be paired with a control key
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buttonkeys = [Keycode.A, Keycode.B, Keycode.C, Keycode.D, Keycode.E, Keycode.F]
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controlkey = Keycode.LEFT_CONTROL
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# the keyboard object!
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kbd = Keyboard(usb_hid.devices)
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# our array of button objects
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buttons = []
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leds = []
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# make all pin objects, make them inputs w/pullups
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for pin in buttonpins:
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button = digitalio.DigitalInOut(pin)
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button.direction = digitalio.Direction.INPUT
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button.pull = digitalio.Pull.UP
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buttons.append(button)
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for pin in ledpins:
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led = digitalio.DigitalInOut(pin)
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led.direction = digitalio.Direction.OUTPUT
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leds.append(led)
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led = digitalio.DigitalInOut(board.D13)
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led.switch_to_output()
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print("Waiting for button presses")
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while True:
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# check each button
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for button in buttons:
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if not button.value: # pressed?
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i = buttons.index(button)
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leds[i].value = True
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print("Button #%d Pressed" % i)
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# turn on the LED
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led.value = True
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while not button.value:
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pass # wait for it to be released!
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# type the keycode!
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k = buttonkeys[i] # get the corresp. keycode
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kbd.press(controlkey, k)
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kbd.release_all()
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# turn off the LED
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led.value = False
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leds[i].value = False
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time.sleep(0.01)
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