How to plug the KB2040 into the dumbpad
# SPDX-FileCopyrightText: 2022 Dan Halbert for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import rotaryio
import digitalio
import keypad
import board
from adafruit_hid.keycode import Keycode as K
from adafruit_hid.keyboard import Keyboard
import usb_hid
import board
import displayio
import terminalio
from adafruit_display_text import label
import adafruit_displayio_ssd1306
import busio
from adafruit_hid.consumer_control import ConsumerControl
from adafruit_hid.consumer_control_code import ConsumerControlCode
displayio.release_displays()
oled_reset = board.D4 #this doesn't actually do anything right now but is required
i2c = busio.I2C(board.D3, board.D2)
display_bus = displayio.I2CDisplay(i2c, device_address=0x3C, reset=oled_reset)
WIDTH = 128
HEIGHT = 32
BORDER = 5
display = adafruit_displayio_ssd1306.SSD1306(display_bus, width=WIDTH, height=HEIGHT)
# Make the display context
splash = displayio.Group()
display.show(splash)
color_bitmap = displayio.Bitmap(WIDTH, HEIGHT, 1)
color_palette = displayio.Palette(1)
color_palette[0] = 0xFFFFFF # White
bg_sprite = displayio.TileGrid(color_bitmap, pixel_shader=color_palette, x=0, y=0)
splash.append(bg_sprite)
# Draw a smaller inner rectangle
inner_bitmap = displayio.Bitmap(WIDTH - BORDER * 2, HEIGHT - BORDER * 2, 1)
inner_palette = displayio.Palette(1)
inner_palette[0] = 0x000000 # Black
inner_sprite = displayio.TileGrid(
inner_bitmap, pixel_shader=inner_palette, x=BORDER, y=BORDER
)
splash.append(inner_sprite)
# Draw a label
text = "CircuitPython"
text_area = label.Label(
terminalio.FONT, text=text, color=0xFFFFFF, x=28, y=HEIGHT // 2 - 1
)
splash.append(text_area)
keys = keypad.KeyMatrix(
row_pins = (board.CLK, board.MISO, board.MOSI, board.D10, board.D5),
column_pins = ( board.A0, board.A1, board.A2, board.A3),
columns_to_anodes=False,
)
keycodes = [
K.A, K.B, K.C, K.D,
K.E, K.F, K.G, K.H,
K.I, K.J, K.K, K.L,
K.M, K.N, K.O, K.P,
K.Q,
]
kbd = Keyboard(usb_hid.devices)
cc = ConsumerControl(usb_hid.devices)
encoder = rotaryio.IncrementalEncoder(board.D9, board.D8) ##need to add this to the code
last_position = None
while True:
position = encoder.position
if last_position is None:
text_area.text = "CircuitPython"
if ev := keys.events.get():
keycode = keycodes[ev.key_number]
if ev.pressed:
kbd.press(keycode)
text_area.text = str(ev.key_number) + " key press"
else:
kbd.release(keycode)
elif position != last_position:
position_change = position - last_position
if position_change > 0:
for _ in range(position_change):
cc.send(ConsumerControlCode.VOLUME_INCREMENT)
text_area.text = "Volume +"
last_position = position
elif position_change < 0:
for _ in range(-position_change):
cc.send(ConsumerControlCode.VOLUME_DECREMENT)
text_area.text = "Volume -"
last_position = position
if ev := keys.events.get():
keycode = keycodes[ev.key_number]
if ev.pressed:
kbd.press(keycode)
text_area.text = str(ev.key_number) + " key press"
else:
kbd.release(keycode)
else:
if ev := keys.events.get():
keycode = keycodes[ev.key_number]
if ev.pressed:
kbd.press(keycode)
text_area.text = str(ev.key_number) + " key press"
else:
kbd.release(keycode)
last_position = position