diff --git a/ports/atmel-samd/boards/adafruit_sproutsense_m0/board.c b/ports/atmel-samd/boards/adafruit_sproutsense_m0/board.c
new file mode 100644
index 0000000000000..fb1ce4fb834f0
--- /dev/null
+++ b/ports/atmel-samd/boards/adafruit_sproutsense_m0/board.c
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * 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 "supervisor/board.h"
+
+// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
diff --git a/ports/atmel-samd/boards/adafruit_sproutsense_m0/mpconfigboard.h b/ports/atmel-samd/boards/adafruit_sproutsense_m0/mpconfigboard.h
new file mode 100644
index 0000000000000..17ec9c8a5904c
--- /dev/null
+++ b/ports/atmel-samd/boards/adafruit_sproutsense_m0/mpconfigboard.h
@@ -0,0 +1,35 @@
+#define MICROPY_HW_BOARD_NAME "Adafruit SproutSense M0"
+#define MICROPY_HW_MCU_NAME "samd21e18"
+
+#define MICROPY_HW_NEOPIXEL (&pin_PA01)
+#define MICROPY_HW_NEOPIXEL_COUNT (1)
+
+#define IGNORE_PIN_PA02     1
+
+#define IGNORE_PIN_PA05     1
+#define IGNORE_PIN_PA06     1
+#define IGNORE_PIN_PA07     1
+#define IGNORE_PIN_PA08     1
+#define IGNORE_PIN_PA09     1
+#define IGNORE_PIN_PA10     1
+#define IGNORE_PIN_PA11     1
+
+#define IGNORE_PIN_PA14     1
+#define IGNORE_PIN_PA15     1
+
+#define IGNORE_PIN_PA18     1
+#define IGNORE_PIN_PA19     1
+
+#define IGNORE_PIN_PA22     1
+#define IGNORE_PIN_PA23     1
+// USB is always used internally so skip the pin objects for it.
+#define IGNORE_PIN_PA24     1
+#define IGNORE_PIN_PA25     1
+
+#define IGNORE_PIN_PA27     1
+#define IGNORE_PIN_PA28     1
+#define IGNORE_PIN_PA30     1
+#define IGNORE_PIN_PA31     1
+
+#define DEFAULT_I2C_BUS_SCL (&pin_PA17)
+#define DEFAULT_I2C_BUS_SDA (&pin_PA16)
diff --git a/ports/atmel-samd/boards/adafruit_sproutsense_m0/mpconfigboard.mk b/ports/atmel-samd/boards/adafruit_sproutsense_m0/mpconfigboard.mk
new file mode 100644
index 0000000000000..458a6eea8ef9a
--- /dev/null
+++ b/ports/atmel-samd/boards/adafruit_sproutsense_m0/mpconfigboard.mk
@@ -0,0 +1,21 @@
+USB_VID = 0x239A
+USB_PID = 0x815C
+USB_PRODUCT = "SproutSense M0"
+USB_MANUFACTURER = "Adafruit Industries LLC"
+
+CHIP_VARIANT = SAMD21E18A
+CHIP_FAMILY = samd21
+
+INTERNAL_FLASH_FILESYSTEM = 1
+LONGINT_IMPL = NONE
+CIRCUITPY_FULL_BUILD = 0
+
+CIRCUITPY_AUDIOCORE = 0
+CIRCUITPY_BUSIO_SPI = 0
+CIRCUITPY_BUSIO_UART = 0
+CIRCUITPY_PULSEIO = 0
+CIRCUITPY_PWMIO = 0
+CIRCUITPY_RAINBOWIO = 0
+CIRCUITPY_ROTARYIO = 0
+CIRCUITPY_RTC = 0
+CIRCUITPY_TOUCHIO_USE_NATIVE = 0
diff --git a/ports/atmel-samd/boards/adafruit_sproutsense_m0/pins.c b/ports/atmel-samd/boards/adafruit_sproutsense_m0/pins.c
new file mode 100644
index 0000000000000..38b6d5766b0cf
--- /dev/null
+++ b/ports/atmel-samd/boards/adafruit_sproutsense_m0/pins.c
@@ -0,0 +1,17 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+
+    { MP_ROM_QSTR(MP_QSTR_LIGHT), MP_ROM_PTR(&pin_PA00) },
+    { MP_ROM_QSTR(MP_QSTR_NEOPIXEL), MP_ROM_PTR(&pin_PA01) },
+
+    { MP_ROM_QSTR(MP_QSTR_EXCITATION), MP_ROM_PTR(&pin_PA01) },
+    { MP_ROM_QSTR(MP_QSTR_SENSOR), MP_ROM_PTR(&pin_PA01) },
+
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_PA16) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_PA17) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);