diff --git a/.travis.yml b/.travis.yml
index f252309678..0a3c063e2d 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,7 +21,7 @@ git:
 # that SDK is shortest and add it there.  In the case of major re-organizations,
 # just try to make the builds "about equal in run time"
 env:
-  - TRAVIS_TESTS="unix docs translations website" TRAVIS_BOARDS="feather_huzzah circuitplayground_express mini_sam_m4 grandcentral_m4_express pca10056 pca10059 feather_nrf52832 feather_nrf52840_express makerdiary_nrf52840_mdk" TRAVIS_SDK=arm:nrf:esp8266
+  - TRAVIS_TESTS="unix docs translations website" TRAVIS_BOARDS="feather_huzzah circuitplayground_express mini_sam_m4 grandcentral_m4_express pca10056 pca10059 feather_nrf52832 feather_nrf52840_express makerdiary_nrf52840_mdk particle_boron particle_argon particle_xenon" TRAVIS_SDK=arm:nrf:esp8266
   - TRAVIS_BOARDS="metro_m0_express metro_m4_express pirkey_m0 trellis_m4_express trinket_m0" TRAVIS_SDK=arm
   - TRAVIS_BOARDS="feather_radiofruit_zigbee gemma_m0 hallowing_m0_express itsybitsy_m0_express itsybitsy_m4_express meowmeow" TRAVIS_SDK=arm
   - TRAVIS_BOARDS="feather_m0_express_crickit feather_m0_rfm69 feather_m0_rfm9x feather_m4_express arduino_zero arduino_mkr1300" TRAVIS_SDK=arm
@@ -92,7 +92,7 @@ script:
   - make -C mpy-cross -j2
   - echo -en 'travis_fold:end:mpy-cross\\r'
 
-  - cd tools && python3 build_adafruit_bins.py
+  - cd tools && python3 build_release_files.py
   - cd ..
 
   - echo 'Building unix' && echo -en 'travis_fold:start:unix\\r'
diff --git a/ports/atmel-samd/Makefile b/ports/atmel-samd/Makefile
index 99b8842c6c..53fc59e59d 100644
--- a/ports/atmel-samd/Makefile
+++ b/ports/atmel-samd/Makefile
@@ -81,7 +81,8 @@ BASE_CFLAGS = \
 	-DCIRCUITPY_SAFE_RESTART_WORD=0xDEADBEEF \
 	--param max-inline-insns-single=500
 
-
+	# -ftime-report
+	# -H
 # NDEBUG disables assert() statements. This reduces code size pretty dramatically, per tannewt.
 
 ifeq ($(CHIP_FAMILY), samd21)
diff --git a/ports/atmel-samd/asf4 b/ports/atmel-samd/asf4
index 4007ba846b..8341a593fd 160000
--- a/ports/atmel-samd/asf4
+++ b/ports/atmel-samd/asf4
@@ -1 +1 @@
-Subproject commit 4007ba846bc937410f7eb8350e62e0f5fe9ed8f5
+Subproject commit 8341a593fd6120cafda8b158774a53a0b7aaa636
diff --git a/ports/atmel-samd/boards/cp32-m4/mpconfigboard.h b/ports/atmel-samd/boards/cp32-m4/mpconfigboard.h
index bcad7f18b8..5587d165ab 100644
--- a/ports/atmel-samd/boards/cp32-m4/mpconfigboard.h
+++ b/ports/atmel-samd/boards/cp32-m4/mpconfigboard.h
@@ -20,14 +20,6 @@
 
 #define BOARD_FLASH_SIZE (FLASH_SIZE - 0x4000 - CIRCUITPY_INTERNAL_NVM_SIZE)
 
-#include "external_flash/devices.h"
-
-// these are the labeled pins (SDA, SCL, SCK, MOSI, MISO, etc)
-#define EXTERNAL_FLASH_DEVICE_COUNT 1
-#define EXTERNAL_FLASH_DEVICES W25Q128JV_PM
-
-#include "external_flash/external_flash.h"
-
 #define DEFAULT_I2C_BUS_SCL (&pin_PB09)
 #define DEFAULT_I2C_BUS_SDA (&pin_PB08)
 
diff --git a/ports/atmel-samd/boards/cp32-m4/mpconfigboard.mk b/ports/atmel-samd/boards/cp32-m4/mpconfigboard.mk
index 56fc9b2fb5..63acd03b4c 100644
--- a/ports/atmel-samd/boards/cp32-m4/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/cp32-m4/mpconfigboard.mk
@@ -5,6 +5,8 @@ USB_PRODUCT = "CP32-M4"
 USB_MANUFACTURER = "Nadda-Reel Company LLC"
 
 QSPI_FLASH_FILESYSTEM = 1
+EXTERNAL_FLASH_DEVICE_COUNT = 1
+EXTERNAL_FLASH_DEVICES = "W25Q128JV_PM"
 
 CHIP_VARIANT = SAMD51G19A
 CHIP_FAMILY = samd51
diff --git a/ports/atmel-samd/peripherals b/ports/atmel-samd/peripherals
index f20fcf642b..bdc11687ee 160000
--- a/ports/atmel-samd/peripherals
+++ b/ports/atmel-samd/peripherals
@@ -1 +1 @@
-Subproject commit f20fcf642b5654ee68d7d551ea7db39716ef83bf
+Subproject commit bdc11687ee9d0f71bfedca38478d91496321c40c
diff --git a/ports/nrf/boards/particle_argon/board.c b/ports/nrf/boards/particle_argon/board.c
new file mode 100644
index 0000000000..f891f54a13
--- /dev/null
+++ b/ports/nrf/boards/particle_argon/board.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 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 "boards/board.h"
+
+void board_init(void) {
+}
+
+bool board_requests_safe_mode(void) {
+  return false;
+}
+
+void reset_board(void) {
+
+}
diff --git a/ports/nrf/boards/particle_argon/mpconfigboard.h b/ports/nrf/boards/particle_argon/mpconfigboard.h
new file mode 100644
index 0000000000..4a5c1b0c83
--- /dev/null
+++ b/ports/nrf/boards/particle_argon/mpconfigboard.h
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Glenn Ruben Bakke
+ * Copyright (c) 2018 Dan Halbert 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 "nrfx/hal/nrf_gpio.h"
+
+#define FEATHER52840
+
+#define MICROPY_HW_BOARD_NAME       "Particle Argon"
+#define MICROPY_HW_MCU_NAME         "nRF52840"
+#define MICROPY_PY_SYS_PLATFORM     "Particle Argon"
+
+#define MICROPY_HW_RGB_LED_RED         (&pin_P0_13)
+#define MICROPY_HW_RGB_LED_GREEN       (&pin_P0_14)
+#define MICROPY_HW_RGB_LED_BLUE        (&pin_P0_15)
+
+#ifdef QSPI_FLASH_FILESYSTEM
+#define MICROPY_QSPI_DATA0                NRF_GPIO_PIN_MAP(0, 20)
+#define MICROPY_QSPI_DATA1                NRF_GPIO_PIN_MAP(0, 21)
+#define MICROPY_QSPI_DATA2                NRF_GPIO_PIN_MAP(0, 22)
+#define MICROPY_QSPI_DATA3                NRF_GPIO_PIN_MAP(0, 23)
+#define MICROPY_QSPI_SCK                  NRF_GPIO_PIN_MAP(0, 19)
+#define MICROPY_QSPI_CS                   NRF_GPIO_PIN_MAP(0, 17)
+#endif
+
+#ifdef SPI_FLASH_FILESYSTEM
+#define SPI_FLASH_MOSI_PIN &pin_P0_20
+#define SPI_FLASH_MISO_PIN &pin_P0_21
+#define SPI_FLASH_SCK_PIN &pin_P0_19
+#define SPI_FLASH_CS_PIN &pin_P0_17
+#endif
+
+#define CIRCUITPY_AUTORELOAD_DELAY_MS 500
+
+// If you change this, then make sure to update the linker scripts as well to
+// make sure you don't overwrite code
+#define PORT_HEAP_SIZE              (128 * 1024)
+// TODO #define CIRCUITPY_INTERNAL_NVM_SIZE 8192
+
+#define BOARD_FLASH_SIZE (FLASH_SIZE - 0x4000 - CIRCUITPY_INTERNAL_NVM_SIZE)
+
+#define BOARD_HAS_CRYSTAL 1
+
+#define DEFAULT_I2C_BUS_SCL         (&pin_P0_27)
+#define DEFAULT_I2C_BUS_SDA         (&pin_P0_26)
+
+#define DEFAULT_SPI_BUS_SCK         (&pin_P1_15)
+#define DEFAULT_SPI_BUS_MOSI        (&pin_P1_13)
+#define DEFAULT_SPI_BUS_MISO        (&pin_P1_14)
+
+#define DEFAULT_UART_BUS_RX         (&pin_P0_08)
+#define DEFAULT_UART_BUS_TX         (&pin_P0_06)
diff --git a/ports/nrf/boards/particle_argon/mpconfigboard.mk b/ports/nrf/boards/particle_argon/mpconfigboard.mk
new file mode 100644
index 0000000000..1210dd8d7e
--- /dev/null
+++ b/ports/nrf/boards/particle_argon/mpconfigboard.mk
@@ -0,0 +1,25 @@
+USB_VID = 0x2b04
+USB_PID = 0xc00c
+USB_PRODUCT = "Argon"
+USB_MANUFACTURER = "Particle"
+
+MCU_SERIES = m4
+MCU_VARIANT = nrf52
+MCU_SUB_VARIANT = nrf52840
+MCU_CHIP = nrf52840
+SD ?= s140
+SOFTDEV_VERSION ?= 6.1.0
+
+BOOT_SETTING_ADDR = 0xFF000
+
+ifeq ($(SD),)
+	LD_FILE = boards/nrf52840_1M_256k.ld
+else
+	LD_FILE = boards/adafruit_$(MCU_SUB_VARIANT)_$(SD_LOWER)_v$(firstword $(subst ., ,$(SOFTDEV_VERSION))).ld
+endif
+
+NRF_DEFINES += -DNRF52840_XXAA -DNRF52840
+
+QSPI_FLASH_FILESYSTEM = 1
+EXTERNAL_FLASH_DEVICE_COUNT = 1
+EXTERNAL_FLASH_DEVICES = "MX25L1606"
diff --git a/ports/nrf/boards/particle_argon/pins.c b/ports/nrf/boards/particle_argon/pins.c
new file mode 100644
index 0000000000..0457f0aa86
--- /dev/null
+++ b/ports/nrf/boards/particle_argon/pins.c
@@ -0,0 +1,66 @@
+#include "shared-bindings/board/__init__.h"
+
+#include "board_busses.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_P0_03) },
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_P0_04) },
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_P0_28) },
+    { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_P0_29) },
+    { MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_P0_30) },
+    { MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_P0_31) },
+
+    { MP_ROM_QSTR(MP_QSTR_MODE), MP_ROM_PTR(&pin_P0_11) },
+
+    { MP_ROM_QSTR(MP_QSTR_VOLTAGE_MONITOR), MP_ROM_PTR(&pin_P0_05) },
+    { MP_ROM_QSTR(MP_QSTR_BATTERY), MP_ROM_PTR(&pin_P0_05) },
+
+    { MP_ROM_QSTR(MP_QSTR_CHARGE_STATUS), MP_ROM_PTR(&pin_P1_09) },
+
+    { MP_ROM_QSTR(MP_QSTR_NFC1), MP_ROM_PTR(&pin_P0_09) },
+    { MP_ROM_QSTR(MP_QSTR_NFC2), MP_ROM_PTR(&pin_P0_10) },
+
+    { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_P1_01) },
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_P1_02) },
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_P1_08) },
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_P1_10) },
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_P1_11) },
+    { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_P1_12) },
+    { MP_ROM_QSTR(MP_QSTR_BLUE_LED), MP_ROM_PTR(&pin_P1_12) },
+    { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_P1_03) },
+
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_RED), MP_ROM_PTR(&pin_P0_13) },
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_GREEN), MP_ROM_PTR(&pin_P0_14) },
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_BLUE), MP_ROM_PTR(&pin_P0_15) },
+
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_P1_15) },
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_P1_15) },
+    { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_P1_13) },
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_P1_13) },
+    { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_P1_14) },
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_P1_14) },
+
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_P0_08) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_P0_08) },
+
+    { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_P0_26) },
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_P0_26) },
+
+    { MP_ROM_QSTR(MP_QSTR_ANTENNA_EXTERNAL), MP_ROM_PTR(&pin_P0_25) },
+    { MP_ROM_QSTR(MP_QSTR_ANTENNA_PCB), MP_ROM_PTR(&pin_P0_02) },
+
+
+    { MP_ROM_QSTR(MP_QSTR_ESP_TX), MP_ROM_PTR(&pin_P1_04) },
+    { MP_ROM_QSTR(MP_QSTR_ESP_RX), MP_ROM_PTR(&pin_P1_05) },
+    { MP_ROM_QSTR(MP_QSTR_ESP_CTS), MP_ROM_PTR(&pin_P1_07) },
+    { MP_ROM_QSTR(MP_QSTR_ESP_RTS), MP_ROM_PTR(&pin_P1_06) },
+    { MP_ROM_QSTR(MP_QSTR_ESP_BOOT_MODE), MP_ROM_PTR(&pin_P0_16) },
+    { MP_ROM_QSTR(MP_QSTR_ESP_WIFI_EN), MP_ROM_PTR(&pin_P0_24) },
+    { MP_ROM_QSTR(MP_QSTR_ESP_HOST_WK), MP_ROM_PTR(&pin_P0_07) },
+};
+
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/ports/nrf/boards/particle_boron/board.c b/ports/nrf/boards/particle_boron/board.c
new file mode 100644
index 0000000000..f891f54a13
--- /dev/null
+++ b/ports/nrf/boards/particle_boron/board.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 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 "boards/board.h"
+
+void board_init(void) {
+}
+
+bool board_requests_safe_mode(void) {
+  return false;
+}
+
+void reset_board(void) {
+
+}
diff --git a/ports/nrf/boards/particle_boron/mpconfigboard.h b/ports/nrf/boards/particle_boron/mpconfigboard.h
new file mode 100644
index 0000000000..ac5caee0f7
--- /dev/null
+++ b/ports/nrf/boards/particle_boron/mpconfigboard.h
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Glenn Ruben Bakke
+ * Copyright (c) 2018 Dan Halbert 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 "nrfx/hal/nrf_gpio.h"
+
+#define FEATHER52840
+
+#define MICROPY_HW_BOARD_NAME       "Particle Boron"
+#define MICROPY_HW_MCU_NAME         "nRF52840"
+#define MICROPY_PY_SYS_PLATFORM     "Particle Boron"
+
+#define MICROPY_HW_RGB_LED_RED         (&pin_P0_13)
+#define MICROPY_HW_RGB_LED_GREEN       (&pin_P0_14)
+#define MICROPY_HW_RGB_LED_BLUE        (&pin_P0_15)
+
+#ifdef QSPI_FLASH_FILESYSTEM
+#define MICROPY_QSPI_DATA0                NRF_GPIO_PIN_MAP(0, 20)
+#define MICROPY_QSPI_DATA1                NRF_GPIO_PIN_MAP(0, 21)
+#define MICROPY_QSPI_DATA2                NRF_GPIO_PIN_MAP(0, 22)
+#define MICROPY_QSPI_DATA3                NRF_GPIO_PIN_MAP(0, 23)
+#define MICROPY_QSPI_SCK                  NRF_GPIO_PIN_MAP(0, 19)
+#define MICROPY_QSPI_CS                   NRF_GPIO_PIN_MAP(0, 17)
+#endif
+
+#ifdef SPI_FLASH_FILESYSTEM
+#define SPI_FLASH_MOSI_PIN &pin_P0_20
+#define SPI_FLASH_MISO_PIN &pin_P0_21
+#define SPI_FLASH_SCK_PIN &pin_P0_19
+#define SPI_FLASH_CS_PIN &pin_P0_17
+#endif
+
+#define CIRCUITPY_AUTORELOAD_DELAY_MS 500
+
+// If you change this, then make sure to update the linker scripts as well to
+// make sure you don't overwrite code
+#define PORT_HEAP_SIZE              (128 * 1024)
+// TODO #define CIRCUITPY_INTERNAL_NVM_SIZE 8192
+
+#define BOARD_FLASH_SIZE (FLASH_SIZE - 0x4000 - CIRCUITPY_INTERNAL_NVM_SIZE)
+
+#define BOARD_HAS_CRYSTAL 1
+
+#define DEFAULT_I2C_BUS_SCL         (&pin_P0_27)
+#define DEFAULT_I2C_BUS_SDA         (&pin_P0_26)
+
+#define DEFAULT_SPI_BUS_SCK         (&pin_P1_15)
+#define DEFAULT_SPI_BUS_MOSI        (&pin_P1_13)
+#define DEFAULT_SPI_BUS_MISO        (&pin_P1_14)
+
+#define DEFAULT_UART_BUS_RX         (&pin_P0_08)
+#define DEFAULT_UART_BUS_TX         (&pin_P0_06)
diff --git a/ports/nrf/boards/particle_boron/mpconfigboard.mk b/ports/nrf/boards/particle_boron/mpconfigboard.mk
new file mode 100644
index 0000000000..97bf67fb1f
--- /dev/null
+++ b/ports/nrf/boards/particle_boron/mpconfigboard.mk
@@ -0,0 +1,25 @@
+USB_VID = 0x2b04
+USB_PID = 0xc00d
+USB_PRODUCT = "Boron"
+USB_MANUFACTURER = "Particle"
+
+MCU_SERIES = m4
+MCU_VARIANT = nrf52
+MCU_SUB_VARIANT = nrf52840
+MCU_CHIP = nrf52840
+SD ?= s140
+SOFTDEV_VERSION ?= 6.1.0
+
+BOOT_SETTING_ADDR = 0xFF000
+
+ifeq ($(SD),)
+	LD_FILE = boards/nrf52840_1M_256k.ld
+else
+	LD_FILE = boards/adafruit_$(MCU_SUB_VARIANT)_$(SD_LOWER)_v$(firstword $(subst ., ,$(SOFTDEV_VERSION))).ld
+endif
+
+NRF_DEFINES += -DNRF52840_XXAA -DNRF52840
+
+QSPI_FLASH_FILESYSTEM = 1
+EXTERNAL_FLASH_DEVICE_COUNT = 1
+EXTERNAL_FLASH_DEVICES = "MX25L1606"
diff --git a/ports/nrf/boards/particle_boron/pins.c b/ports/nrf/boards/particle_boron/pins.c
new file mode 100644
index 0000000000..2bff0a2ce4
--- /dev/null
+++ b/ports/nrf/boards/particle_boron/pins.c
@@ -0,0 +1,64 @@
+#include "shared-bindings/board/__init__.h"
+
+#include "board_busses.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_P0_03) },
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_P0_04) },
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_P0_28) },
+    { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_P0_29) },
+    { MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_P0_30) },
+    { MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_P0_31) },
+
+    { MP_ROM_QSTR(MP_QSTR_MODE), MP_ROM_PTR(&pin_P0_11) },
+
+    { MP_ROM_QSTR(MP_QSTR_POWER_I2C_SDA), MP_ROM_PTR(&pin_P0_24) },
+    { MP_ROM_QSTR(MP_QSTR_POWER_I2C_SCL), MP_ROM_PTR(&pin_P1_09) },
+    { MP_ROM_QSTR(MP_QSTR_POWER_INTERRUPT), MP_ROM_PTR(&pin_P0_05) },
+
+    { MP_ROM_QSTR(MP_QSTR_NFC1), MP_ROM_PTR(&pin_P0_09) },
+    { MP_ROM_QSTR(MP_QSTR_NFC2), MP_ROM_PTR(&pin_P0_10) },
+
+    { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_P1_01) },
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_P1_02) },
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_P1_08) },
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_P1_10) },
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_P1_11) },
+    { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_P1_12) },
+    { MP_ROM_QSTR(MP_QSTR_BLUE_LED), MP_ROM_PTR(&pin_P1_12) },
+    { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_P1_03) },
+
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_RED), MP_ROM_PTR(&pin_P0_13) },
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_GREEN), MP_ROM_PTR(&pin_P0_14) },
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_BLUE), MP_ROM_PTR(&pin_P0_15) },
+
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_P1_15) },
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_P1_15) },
+    { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_P1_13) },
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_P1_13) },
+    { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_P1_14) },
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_P1_14) },
+
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_P0_08) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_P0_08) },
+
+    { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_P0_26) },
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_P0_26) },
+
+    { MP_ROM_QSTR(MP_QSTR_ANTENNA_SWITCH), MP_ROM_PTR(&pin_P0_07) },
+
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_TX), MP_ROM_PTR(&pin_P1_05) },
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_RX), MP_ROM_PTR(&pin_P1_04) },
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_CTS), MP_ROM_PTR(&pin_P1_06) },
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_RTS), MP_ROM_PTR(&pin_P1_07) },
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_POWER_ENABLE), MP_ROM_PTR(&pin_P0_25) },
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_POWER_MONITOR), MP_ROM_PTR(&pin_P0_02) },
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_RESET), MP_ROM_PTR(&pin_P0_12) },
+    { MP_ROM_QSTR(MP_QSTR_UBLOX_POWER_ON), MP_ROM_PTR(&pin_P0_16) },
+};
+
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/ports/nrf/boards/particle_xenon/board.c b/ports/nrf/boards/particle_xenon/board.c
new file mode 100644
index 0000000000..f891f54a13
--- /dev/null
+++ b/ports/nrf/boards/particle_xenon/board.c
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 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 "boards/board.h"
+
+void board_init(void) {
+}
+
+bool board_requests_safe_mode(void) {
+  return false;
+}
+
+void reset_board(void) {
+
+}
diff --git a/ports/nrf/boards/particle_xenon/mpconfigboard.h b/ports/nrf/boards/particle_xenon/mpconfigboard.h
new file mode 100644
index 0000000000..d3ce22327b
--- /dev/null
+++ b/ports/nrf/boards/particle_xenon/mpconfigboard.h
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Glenn Ruben Bakke
+ * Copyright (c) 2018 Dan Halbert 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 "nrfx/hal/nrf_gpio.h"
+
+#define FEATHER52840
+
+#define MICROPY_HW_BOARD_NAME       "Particle Xenon"
+#define MICROPY_HW_MCU_NAME         "nRF52840"
+#define MICROPY_PY_SYS_PLATFORM     "Particle Xenon"
+
+#define MICROPY_HW_RGB_LED_RED         (&pin_P0_13)
+#define MICROPY_HW_RGB_LED_GREEN       (&pin_P0_14)
+#define MICROPY_HW_RGB_LED_BLUE        (&pin_P0_15)
+
+#ifdef QSPI_FLASH_FILESYSTEM
+#define MICROPY_QSPI_DATA0                NRF_GPIO_PIN_MAP(0, 20)
+#define MICROPY_QSPI_DATA1                NRF_GPIO_PIN_MAP(0, 21)
+#define MICROPY_QSPI_DATA2                NRF_GPIO_PIN_MAP(0, 22)
+#define MICROPY_QSPI_DATA3                NRF_GPIO_PIN_MAP(0, 23)
+#define MICROPY_QSPI_SCK                  NRF_GPIO_PIN_MAP(0, 19)
+#define MICROPY_QSPI_CS                   NRF_GPIO_PIN_MAP(0, 17)
+#endif
+
+#ifdef SPI_FLASH_FILESYSTEM
+#define SPI_FLASH_MOSI_PIN &pin_P0_20
+#define SPI_FLASH_MISO_PIN &pin_P0_21
+#define SPI_FLASH_SCK_PIN &pin_P0_19
+#define SPI_FLASH_CS_PIN &pin_P0_17
+#endif
+
+#define CIRCUITPY_AUTORELOAD_DELAY_MS 500
+
+// If you change this, then make sure to update the linker scripts as well to
+// make sure you don't overwrite code
+#define PORT_HEAP_SIZE              (128 * 1024)
+// TODO #define CIRCUITPY_INTERNAL_NVM_SIZE 8192
+
+#define BOARD_FLASH_SIZE (FLASH_SIZE - 0x4000 - CIRCUITPY_INTERNAL_NVM_SIZE)
+
+#define BOARD_HAS_CRYSTAL 1
+
+#define DEFAULT_I2C_BUS_SCL         (&pin_P0_27)
+#define DEFAULT_I2C_BUS_SDA         (&pin_P0_26)
+
+#define DEFAULT_SPI_BUS_SCK         (&pin_P1_15)
+#define DEFAULT_SPI_BUS_MOSI        (&pin_P1_13)
+#define DEFAULT_SPI_BUS_MISO        (&pin_P1_14)
+
+#define DEFAULT_UART_BUS_RX         (&pin_P0_08)
+#define DEFAULT_UART_BUS_TX         (&pin_P0_06)
diff --git a/ports/nrf/boards/particle_xenon/mpconfigboard.mk b/ports/nrf/boards/particle_xenon/mpconfigboard.mk
new file mode 100644
index 0000000000..50afe1bbd6
--- /dev/null
+++ b/ports/nrf/boards/particle_xenon/mpconfigboard.mk
@@ -0,0 +1,25 @@
+USB_VID = 0x2b04
+USB_PID = 0xc00e # argon is 0xc00c
+USB_PRODUCT = "Xenon"
+USB_MANUFACTURER = "Particle"
+
+MCU_SERIES = m4
+MCU_VARIANT = nrf52
+MCU_SUB_VARIANT = nrf52840
+MCU_CHIP = nrf52840
+SD ?= s140
+SOFTDEV_VERSION ?= 6.1.0
+
+BOOT_SETTING_ADDR = 0xFF000
+
+ifeq ($(SD),)
+	LD_FILE = boards/nrf52840_1M_256k.ld
+else
+	LD_FILE = boards/adafruit_$(MCU_SUB_VARIANT)_$(SD_LOWER)_v$(firstword $(subst ., ,$(SOFTDEV_VERSION))).ld
+endif
+
+NRF_DEFINES += -DNRF52840_XXAA -DNRF52840
+
+QSPI_FLASH_FILESYSTEM = 1
+EXTERNAL_FLASH_DEVICE_COUNT = 1
+EXTERNAL_FLASH_DEVICES = "MX25L1606"
diff --git a/ports/nrf/boards/particle_xenon/pins.c b/ports/nrf/boards/particle_xenon/pins.c
new file mode 100644
index 0000000000..11a29e9273
--- /dev/null
+++ b/ports/nrf/boards/particle_xenon/pins.c
@@ -0,0 +1,57 @@
+#include "shared-bindings/board/__init__.h"
+
+#include "board_busses.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_P0_03) },
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_P0_04) },
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_P0_28) },
+    { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_P0_29) },
+    { MP_ROM_QSTR(MP_QSTR_A4), MP_ROM_PTR(&pin_P0_30) },
+    { MP_ROM_QSTR(MP_QSTR_A5), MP_ROM_PTR(&pin_P0_31) },
+
+    { MP_ROM_QSTR(MP_QSTR_MODE), MP_ROM_PTR(&pin_P0_11) },
+
+    { MP_ROM_QSTR(MP_QSTR_VOLTAGE_MONITOR), MP_ROM_PTR(&pin_P0_05) },
+    { MP_ROM_QSTR(MP_QSTR_BATTERY), MP_ROM_PTR(&pin_P0_05) },
+
+    { MP_ROM_QSTR(MP_QSTR_CHARGE_STATUS), MP_ROM_PTR(&pin_P1_09) },
+
+    { MP_ROM_QSTR(MP_QSTR_NFC1), MP_ROM_PTR(&pin_P0_09) },
+    { MP_ROM_QSTR(MP_QSTR_NFC2), MP_ROM_PTR(&pin_P0_10) },
+
+    { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_P1_01) },
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_P1_02) },
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_P1_08) },
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_P1_10) },
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_P1_11) },
+    { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_P1_12) },
+    { MP_ROM_QSTR(MP_QSTR_BLUE_LED), MP_ROM_PTR(&pin_P1_12) },
+    { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_P1_03) },
+
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_RED), MP_ROM_PTR(&pin_P0_13) },
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_GREEN), MP_ROM_PTR(&pin_P0_14) },
+    { MP_ROM_QSTR(MP_QSTR_RGB_LED_BLUE), MP_ROM_PTR(&pin_P0_15) },
+
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_P1_15) },
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_P1_15) },
+    { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_P1_13) },
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_P1_13) },
+    { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_P1_14) },
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_P1_14) },
+
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_P0_08) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_P0_08) },
+
+    { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_P0_26) },
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_P0_26) },
+
+    { MP_ROM_QSTR(MP_QSTR_ANTENNA_EXTERNAL), MP_ROM_PTR(&pin_P0_25) },
+    { MP_ROM_QSTR(MP_QSTR_ANTENNA_PCB), MP_ROM_PTR(&pin_P0_24) },
+};
+
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/supervisor/shared/external_flash/devices.h b/supervisor/shared/external_flash/devices.h
index 8d8574c47c..6036c27dfa 100644
--- a/supervisor/shared/external_flash/devices.h
+++ b/supervisor/shared/external_flash/devices.h
@@ -335,6 +335,24 @@ typedef struct {
     .single_status_byte = false, \
 }
 
+// Settings for the Macronix MX25L1606 2MiB SPI flash.
+// Datasheet:
+#define MX25L1606  {\
+    .total_size = (1 << 21), /* 2 MiB */ \
+    .start_up_time_us = 5000, \
+    .manufacturer_id = 0xc2, \
+    .memory_type = 0x20, \
+    .capacity = 0x15, \
+    .max_clock_speed_mhz = 8, \
+    .quad_enable_bit_mask = 0x40, \
+    .has_sector_protection = false, \
+    .supports_fast_read = true, \
+    .supports_qspi = true, \
+    .supports_qspi_writes = true, \
+    .write_status_register_split = false, \
+    .single_status_byte = true, \
+}
+
 // Settings for the Macronix MX25R6435F 8MiB SPI flash.
 // Datasheet: http://www.macronix.com/Lists/Datasheet/Attachments/7428/MX25R6435F,%20Wide%20Range,%2064Mb,%20v1.4.pdf
 // By default its in lower power mode which can only do 8mhz. In high power mode it can do 80mhz.
diff --git a/tools/build_adafruit_bins.py b/tools/build_release_files.py
similarity index 91%
rename from tools/build_adafruit_bins.py
rename to tools/build_release_files.py
index 94c31ad335..a3b91c3310 100755
--- a/tools/build_adafruit_bins.py
+++ b/tools/build_release_files.py
@@ -1,6 +1,4 @@
 import os
-from sh import rm
-from sh import make
 import sys
 import subprocess
 import shutil
@@ -8,7 +6,7 @@ import build_board_info as build_info
 import time
 
 for port in build_info.SUPPORTED_PORTS:
-    rm("-rf", "../ports/{}/build*".format(port))
+    result = subprocess.run("rm -rf ../ports/{}/build*".format(port), stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=True)
 
 ROSIE_SETUPS = ["rosie-ci"]
 rosie_ok = {}
@@ -60,8 +58,9 @@ for board in build_boards:
         if travis:
             print('travis_fold:start:adafruit-bins-{}-{}\\r'.format(language, board))
         print("Build {} for {} took {:.2f}s and {}".format(board, language, build_duration, success))
-        print(make_result.stdout.decode("utf-8"))
-        print(other_output)
+        if make_result.returncode != 0:
+            print(make_result.stdout.decode("utf-8"))
+            print(other_output)
         # Only upload to Rosie if its a pull request.
         if travis:
             for rosie in ROSIE_SETUPS: