PRK Firmware Keymap

keymap.rb

# Initialize a Keyboard
kbd = Keyboard.new
# You can make right side the "anchor" (so-called "master")

# Initialize GPIO assign
kbd.init_pins(
  [6, 7],    # row0, row1, etc.
  [9, 10]    # col0, col1, etc.
)
#keyboard.row_pins = (board.GP6, board.GP7)
#keyboard.col_pins = (board.GP9, board.GP10)

# default layer should be added at first
kbd.add_layer :default, %i[
  KC_A    KC_S
  KC_C    KC_V
]


# `before_report` will work just right before reporting what keys are pushed to USB host.
# You can use it to hack data by adding an instance method to Keyboard class by yourself.
# ex) Use Keyboard#before_report filter if you want to input `":" w/o shift` and `";" w/ shift`
#kbd.before_report do
#  kbd.invert_sft if kbd.keys_include?(:KC_SCOLON)
#  # You'll be also able to write `invert_ctl`, `invert_alt` and `invert_gui`
#end

kbd.start!

We can use all GP pins except maybe GP8.