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Code for NeoKey emojis
Code for both macOS and Windows for the NeoKey Emoji Keyboard Learn Guide. Each NeoKey is assigned to an emoji. Emojis can be customized with the arrays right before the loop. NeoPixels also light up when NeoKey is pressed.
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‎NeoKey_Emoji_Keyboard/macOS_code.py‎

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import time
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import board
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import busio
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from adafruit_neokey.neokey1x4 import NeoKey1x4
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import usb_hid
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from adafruit_hid.keyboard import Keyboard
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from adafruit_hid.keycode import Keycode
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# use STEMMA I2C bus on RP2040 QT Py
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i2c_bus = busio.I2C(board.SCL1, board.SDA1)
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# Create a NeoKey object
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neokey = NeoKey1x4(i2c_bus, addr=0x30)
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# create a keyboard object
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keyboard = Keyboard(usb_hid.devices)
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print("NeoKey Emoji keyboard - macOS")
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# states for key presses
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key_0_state = False
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key_1_state = False
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key_2_state = False
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key_3_state = False
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# update these arrays to customize your emojis
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# cat face emoji
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emoji_0 = [Keycode.C, Keycode.A, Keycode.T, Keycode.DOWN_ARROW, Keycode.ENTER]
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# lightning bolt emoji
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emoji_1 = [Keycode.V, Keycode.O, Keycode.L, Keycode.T, Keycode.DOWN_ARROW, Keycode.ENTER]
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# control panel emoji
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emoji_2 = [Keycode.C, Keycode.O, Keycode.N, Keycode.T, Keycode.R, Keycode.O,
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Keycode.DOWN_ARROW, Keycode.ENTER]
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# guitar emoji
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emoji_3 = [Keycode.G, Keycode.U, Keycode.I, Keycode.T, Keycode.DOWN_ARROW, Keycode.ENTER]
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while True:
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# switch debouncing
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# also turns off NeoPixel on release
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if not neokey[0] and key_0_state:
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key_0_state = False
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neokey.pixels[0] = 0x0
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if not neokey[1] and key_1_state:
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key_1_state = False
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neokey.pixels[1] = 0x0
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if not neokey[2] and key_2_state:
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key_2_state = False
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neokey.pixels[2] = 0x0
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if not neokey[3] and key_3_state:
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key_3_state = False
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neokey.pixels[3] = 0x0
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# if 1st neokey is pressed...
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if neokey[0] and not key_0_state:
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print("Button A")
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# turn on NeoPixel
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neokey.pixels[0] = 0xFF0000
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# open macOS emoji menu
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keyboard.send(Keycode.CONTROL, Keycode.COMMAND, Keycode.SPACE)
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# delay for opening menu
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time.sleep(.2)
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# send key presses for emoji_0
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for i in emoji_0:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_0_state = True
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# if 2nd neokey is pressed...
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if neokey[1] and not key_1_state:
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print("Button B")
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# turn on NeoPixel
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neokey.pixels[1] = 0xFFFF00
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# open macOS emoji menu
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keyboard.send(Keycode.CONTROL, Keycode.COMMAND, Keycode.SPACE)
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# delay for opening menu
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time.sleep(.2)
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# send key presses for emoji_1
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for i in emoji_1:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_1_state = True
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# if 3rd neokey is pressed...
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if neokey[2] and not key_2_state:
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print("Button C")
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# turn on NeoPixel
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neokey.pixels[2] = 0x00FF00
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# open macOS emoji menu
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keyboard.send(Keycode.CONTROL, Keycode.COMMAND, Keycode.SPACE)
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# delay for opening menu
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time.sleep(.2)
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# send key presses for emoji_2
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for i in emoji_2:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_2_state = True
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# if 4th neokey is pressed...
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if neokey[3] and not key_3_state:
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print("Button D")
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# turn on NeoPixel
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neokey.pixels[3] = 0x00FFFF
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# open macOS emoji menu
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keyboard.send(Keycode.CONTROL, Keycode.COMMAND, Keycode.SPACE)
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# delay for opening menu
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time.sleep(.2)
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# send key presses for emoji_3
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for i in emoji_3:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_3_state = True

‎NeoKey_Emoji_Keyboard/windows_code.py‎

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import time
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import board
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import busio
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from adafruit_neokey.neokey1x4 import NeoKey1x4
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import usb_hid
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from adafruit_hid.keyboard import Keyboard
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from adafruit_hid.keycode import Keycode
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# use STEMMA I2C bus on RP2040 QT Py
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i2c_bus = busio.I2C(board.SCL1, board.SDA1)
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# Create a NeoKey object
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neokey = NeoKey1x4(i2c_bus, addr=0x30)
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# create a keyboard object
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keyboard = Keyboard(usb_hid.devices)
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print("NeoKey Emoji keyboard - Windows")
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# states for key presses
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key_0_state = False
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key_1_state = False
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key_2_state = False
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key_3_state = False
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# update these arrays to customize your emojis
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# cat face emoji
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emoji_0 = [Keycode.C, Keycode.A, Keycode.T, Keycode.SPACE, Keycode.F, Keycode.ENTER, Keycode.ESCAPE]
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# lightning bolt emoji
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emoji_1 = [Keycode.V, Keycode.O, Keycode.L, Keycode.T, Keycode.ENTER, Keycode.ESCAPE]
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# control panel emoji
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emoji_2 = [Keycode.K, Keycode.N, Keycode.O, Keycode.ENTER, Keycode.ESCAPE]
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# guitar emoji
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emoji_3 = [Keycode.G, Keycode.U, Keycode.I, Keycode.T, Keycode.ENTER, Keycode.ESCAPE]
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while True:
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# switch debouncing
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# also turns off NeoPixel on release
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if not neokey[0] and key_0_state:
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key_0_state = False
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neokey.pixels[0] = 0x0
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if not neokey[1] and key_1_state:
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key_1_state = False
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neokey.pixels[1] = 0x0
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if not neokey[2] and key_2_state:
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key_2_state = False
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neokey.pixels[2] = 0x0
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if not neokey[3] and key_3_state:
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key_3_state = False
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neokey.pixels[3] = 0x0
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# if 1st neokey is pressed...
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if neokey[0] and not key_0_state:
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print("Button A")
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# turn on NeoPixel
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neokey.pixels[0] = 0xFF0000
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# open windows emoji menu
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keyboard.send(Keycode.WINDOWS, Keycode.PERIOD)
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# delay for opening menu
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time.sleep(0.75)
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# send key presses for emoji_0
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for i in emoji_0:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_0_state = True
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# if 2nd neokey is pressed...
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if neokey[1] and not key_1_state:
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print("Button B")
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# turn on NeoPixel
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neokey.pixels[1] = 0xFFFF00
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# open windows emoji menu
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keyboard.send(Keycode.WINDOWS, Keycode.PERIOD)
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# delay for opening menu
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time.sleep(.75)
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# send key presses for emoji_1
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for i in emoji_1:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_1_state = True
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# if 3rd neokey is pressed...
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if neokey[2] and not key_2_state:
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print("Button C")
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# turn on NeoPixel
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neokey.pixels[2] = 0x00FF00
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# open windows emoji menu
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keyboard.send(Keycode.WINDOWS, Keycode.PERIOD)
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# delay for opening menu
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time.sleep(.75)
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# send key presses for emoji_2
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for i in emoji_2:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_2_state = True
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# if 4th neokey is pressed...
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if neokey[3] and not key_3_state:
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print("Button D")
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# turn on NeoPixel
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neokey.pixels[3] = 0x00FFFF
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# open windows emoji menu
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keyboard.send(Keycode.WINDOWS, Keycode.PERIOD)
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# delay for opening menu
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time.sleep(.75)
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# send key presses for emoji_3
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for i in emoji_3:
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keyboard.send(i)
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time.sleep(0.05)
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# update key state
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key_3_state = True

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