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diff --git a/circuitpython/shared-bindings/board/__init__.c b/circuitpython/shared-bindings/board/__init__.c
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+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Scott Shawcroft
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/obj.h"
+#include "py/runtime.h"
+
+#include "shared-bindings/board/__init__.h"
+#if CIRCUITPY_BOARD_I2C
+#include "shared-bindings/busio/I2C.h"
+#endif
+#if CIRCUITPY_BOARD_SPI
+#include "shared-bindings/busio/SPI.h"
+#endif
+#if CIRCUITPY_BOARD_UART
+#include "shared-bindings/busio/UART.h"
+#endif
+
+//| """Board specific pin names
+//|
+//| Common container for board base pin names. These will vary from board to
+//| board so don't expect portability when using this module.
+//|
+//| Another common use of this module is to use serial communciation buses with
+//| the default pins and settings.  For more information about serial communcication
+//| in CircuitPython, see the :mod:`busio`.
+//|
+//| For more information regarding the typical usage of :py:mod:`board`, refer to the `CircuitPython
+//| Essentials Learn guide
+//| <https://learn.adafruit.com/circuitpython-essentials/circuitpython-pins-and-modules>`_
+//|
+//| .. warning:: The board module varies by board. The APIs documented here may or may not be
+//|              available on a specific board."""
+
+//| board_id: str
+//| """Board ID string. The unique identifier for the board model in
+//| circuitpython, as well as on circuitpython.org.
+//| Example: "hallowing_m0_express"."""
+
+//| def I2C() -> busio.I2C:
+//|     """Returns the `busio.I2C` object for the board's designated I2C bus(es).
+//|     The object created is a singleton, and uses the default parameter values for `busio.I2C`."""
+//|     ...
+//|
+#if CIRCUITPY_BOARD_I2C
+STATIC mp_obj_t board_i2c_0(void) {
+    return common_hal_board_create_i2c(0);
+}
+#else
+STATIC mp_obj_t board_i2c_0(void) {
+    mp_raise_NotImplementedError_varg(translate("No default %q bus"), MP_QSTR_I2C);
+    return MP_ROM_NONE;
+}
+#endif
+MP_DEFINE_CONST_FUN_OBJ_0(board_i2c_obj, board_i2c_0);
+
+//| def SPI() -> busio.SPI:
+//|     """Returns the `busio.SPI` object for the board's designated SPI bus(es).
+//|     The object created is a singleton, and uses the default parameter values for `busio.SPI`."""
+//|     ...
+//|
+#if CIRCUITPY_BOARD_SPI
+STATIC mp_obj_t board_spi_0(void) {
+    return common_hal_board_create_spi(0);
+}
+#else
+STATIC mp_obj_t board_spi_0(void) {
+    mp_raise_NotImplementedError_varg(translate("No default %q bus"), MP_QSTR_SPI);
+    return MP_ROM_NONE;
+}
+#endif
+MP_DEFINE_CONST_FUN_OBJ_0(board_spi_obj, board_spi_0);
+
+//| def UART() -> busio.UART:
+//|     """Returns the `busio.UART` object for the board's designated UART bus(es).
+//|     The object created is a singleton, and uses the default parameter values for `busio.UART`."""
+//|     ...
+//|
+#if CIRCUITPY_BOARD_UART
+STATIC mp_obj_t board_uart_0(void) {
+    return common_hal_board_create_uart(0);
+}
+#else
+STATIC mp_obj_t board_uart_0(void) {
+    mp_raise_NotImplementedError_varg(translate("No default %q bus"), MP_QSTR_UART);
+    return MP_ROM_NONE;
+}
+#endif
+MP_DEFINE_CONST_FUN_OBJ_0(board_uart_obj, board_uart_0);
+
+const mp_obj_module_t board_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t *)&board_module_globals,
+};
+
+MP_REGISTER_MODULE(MP_QSTR_board, board_module, CIRCUITPY_BOARD);