--- /dev/null
+# SPDX-FileCopyrightText: 2023 Carter Nelson for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+"""
+Pin definitions for the KB2040 with u2if firmware.
+
+Adafruit CircuitPython 8.2.0 on 2023-07-05; Adafruit KB2040 with rp2040
+>>> import board
+>>> board.
+A0 A1 A2 A3
+BUTTON CLK D0 D1
+D10 D11 D12 D13
+D2 D3 D4 D5
+D6 D7 D8 D9
+I2C MISO MOSI NEOPIXEL
+RX SCK SCL SDA
+SPI STEMMA_I2C TX UART
+board_id
+"""
+
+from adafruit_blinka.microcontroller.rp2040_u2if import pin
+
+D0 = TX = pin.GP0
+D1 = RX = pin.GP1
+D2 = pin.GP2
+D3 = pin.GP3
+D4 = pin.GP4
+D5 = pin.GP5
+D6 = pin.GP6
+D7 = pin.GP7
+D8 = pin.GP8
+D9 = pin.GP9
+D10 = pin.GP10
+D11 = pin.GP11
+D12 = pin.GP12
+D13 = pin.GP13
+
+A0 = pin.GP26
+A1 = pin.GP27
+A2 = pin.GP28
+A3 = pin.GP29
+
+BUTTON = pin.GP11
+
+NEOPIXEL = pin.GP17
+
+SDA = pin.GP12
+SCL = pin.GP13
+
+SCLK = pin.GP18
+MOSI = pin.GP19
+MISO = pin.GP20
+
+
+# access u2if via pin instance to open for specifc VID/PID
+# pylint:disable = protected-access
+pin.GP0._u2if_open_hid(0x239A, 0x0105)
\ No newline at end of file