CircuitPython implementation of a "Vim clutch" for the RPi Pico

code.py

import board
import digitalio
import usb_hid
from adafruit_hid.keyboard import Keyboard
from adafruit_hid.keycode import Keycode

kbd = Keyboard(usb_hid.devices)
button = digitalio.DigitalInOut(board.GP13)
button.switch_to_input(pull=digitalio.Pull.UP)

def vim_clutch(state: bool):
    """
    On press, send `i` key.
    On release, send `Esc` key.
    https://github.com/alevchuk/vim-clutch
    """
    if state:
        kbd.send(Keycode.I)
    else:
        kbd.send(Keycode.ESCAPE)

def big_key(*keycodes):
    return lambda state: kbd.press(*keycodes) if state else kbd.release(*keycodes)

prev = None

while True:
    state = not button.value

    if state != prev:
        # big_key(Keycode.GUI)(state)
        big_key(Keycode.CONTROL)(state)
        # big_key(Keycode.B)(state)
        # vim_clutch(state)
        prev = state