diff --git a/Numpad_4000/code.py b/Numpad_4000/code.py
new file mode 100644
index 000000000..7c4c0fe0f
--- /dev/null
+++ b/Numpad_4000/code.py
@@ -0,0 +1,122 @@
+# SPDX-FileCopyrightText: 2021 John Park for Adafruit Industries
+# SPDX-License-Identifier: MIT
+# NUMPAD 4000! Made with snap-apart NeoKey PCB and Feather RP2040.
+
+import board
+import keypad
+import neopixel
+import usb_hid
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keycode import Keycode
+
+COLUMNS = 5
+ROWS = 5
+
+BLUE = 0x000510
+WHITE = 0x303030
+RED = 0xFF0000
+
+
+board_pix = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.1)
+board_pix[0] = BLUE
+
+key_pixels = neopixel.NeoPixel(board.D5, 30, brightness=0.1)
+key_pixels.fill(WHITE)
+
+keys = keypad.KeyMatrix(
+    row_pins=(board.D4, board.A3, board.A2, board.A1, board.A0),
+    column_pins=(board.D13, board.D12, board.D11, board.D10, board.D9),
+    columns_to_anodes=False,
+)
+
+kbd = Keyboard(usb_hid.devices)
+
+keycode_LUT = [
+             0, 1, 2, 3, 4,
+             5, 6, 7, 8,
+             10, 11, 12, 13, 14,
+             15, 16, 17, 18,
+             20, 21, 23, 24
+]
+
+pixel_LUT = [
+             0, 1, 2, 3, 4,
+             8, 7, 6, 5,
+             10, 11, 12, 13, 14,
+             18, 17, 16, 15,
+             20, 21, 23, 24
+]
+# create a keycode dictionary including modifier state and keycodes
+keymap = {
+            (0): (0, Keycode.KEYPAD_NUMLOCK),
+            (1): (0, Keycode.BACKSPACE),
+            (2): (0, Keycode.FORWARD_SLASH),
+            (3): (0, Keycode.KEYPAD_ASTERISK),
+            (4): (0, Keycode.KEYPAD_MINUS),
+
+            (5): (0, Keycode.PAGE_UP),
+            (6): (0, Keycode.KEYPAD_SEVEN),
+            (7): (0, Keycode.KEYPAD_EIGHT),
+            (8): (0, Keycode.KEYPAD_NINE),
+
+            (9): (0, Keycode.PAGE_DOWN),
+            (10): (0, Keycode.KEYPAD_FOUR),
+            (11): (0, Keycode.KEYPAD_FIVE),
+            (12): (0, Keycode.KEYPAD_SIX),
+            (13): (0, Keycode.KEYPAD_PLUS),
+
+            (14): (1, Keycode.SHIFT),
+            (15): (0, Keycode.KEYPAD_ONE),
+            (16): (0, Keycode.KEYPAD_TWO),
+            (17): (0, Keycode.KEYPAD_THREE),
+
+            (18): (2, Keycode.CONTROL),
+            (19): (0, Keycode.KEYPAD_ZERO),
+            (20): (0, Keycode.KEYPAD_PERIOD),
+            (21): (0, Keycode.KEYPAD_EQUALS)  # KEYPAD_ENTER on non-mac
+}
+
+shift_mod = False
+ctrl_mod = False
+
+
+while True:
+
+    key_event = keys.events.get()
+    if key_event:
+        if key_event.pressed:
+            if keymap[keycode_LUT.index(key_event.key_number)][0] == 1:
+                shift_mod = True
+            elif keymap[keycode_LUT.index(key_event.key_number)][0] == 2:
+                ctrl_mod = True
+            if shift_mod is False and ctrl_mod is False:
+                kbd.press(keymap[keycode_LUT.index(key_event.key_number)][1])
+                print(keymap[keycode_LUT.index(key_event.key_number)][1])
+                key_pixels[pixel_LUT.index(key_event.key_number)] = RED
+            elif shift_mod is True and ctrl_mod is False:
+                kbd.press(Keycode.SHIFT, keymap[keycode_LUT.index(key_event.key_number)][1])
+                print(keymap[keycode_LUT.index(key_event.key_number)][1])
+                key_pixels[pixel_LUT.index(key_event.key_number)] = RED
+            elif shift_mod is False and ctrl_mod is True:
+                kbd.press(Keycode.CONTROL, keymap[keycode_LUT.index(key_event.key_number)][1])
+                print(keymap[keycode_LUT.index(key_event.key_number)][1])
+                key_pixels[pixel_LUT.index(key_event.key_number)] = RED
+            elif shift_mod is True and ctrl_mod is True:
+                kbd.press(
+                          Keycode.SHIFT,
+                          Keycode.CONTROL,
+                          keymap[keycode_LUT.index(key_event.key_number)][1]
+                          )
+                print(keymap[keycode_LUT.index(key_event.key_number)][1])
+                key_pixels[pixel_LUT.index(key_event.key_number)] = RED
+            board_pix[0] = WHITE
+
+        if key_event.released:
+            if keymap[keycode_LUT.index(key_event.key_number)][0] == 1:  # un-shift
+                shift_mod = False
+            elif keymap[keycode_LUT.index(key_event.key_number)][0] == 2:  # un-ctrl
+                ctrl_mod = False
+
+            kbd.release(keymap[keycode_LUT.index(key_event.key_number)][1])
+            key_pixels[pixel_LUT.index(key_event.key_number)] = WHITE
+            board_pix[0] = BLUE