diff --git a/keyboards/zmk-config/README.md b/keyboards/zmk-config/README.md
index 44a01b68..15c4538a 100644
--- a/keyboards/zmk-config/README.md
+++ b/keyboards/zmk-config/README.md
@@ -14,6 +14,8 @@ west build --board nice_nano -d build/lily58/left -- -DSHIELD=lily58_left -DZMK_
 
 west build --board nice_nano -d build/lily58/right -- -DSHIELD=lily58_right -DZMK_CONFIG=/workspaces/zmk-config/keyboards/zmk-config/config
 
+west build --board nice_nano -d build/pockettype -- -DSHIELD=pockettype -DZMK_CONFIG=/workspaces/zmk-config/keyboards/zmk-config/config
+
 west build --board itsybitsy_nrf52840 -d build/azarashi64/left -- -DSHIELD=azarashi64_left -DZMK_CONFIG=/workspaces/zmk-config/keyboards/zmk-config/config
 
 west build --board itsybitsy_nrf52840 -d build/azarashi64/right -- -DSHIELD=azarashi64_right -DZMK_CONFIG=/workspaces/zmk-config/keyboards/zmk-config/config
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/CMakeLists.txt b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/CMakeLists.txt
new file mode 100644
index 00000000..84b2ab99
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/CMakeLists.txt
@@ -0,0 +1,13 @@
+#
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
+  COMMAND ${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/../tools/uf2/utils/uf2conv.py
+  -c
+  -b 0x26000
+  -f 0xADA52840
+  -o ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.uf2
+  ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.bin
+)
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig
new file mode 100644
index 00000000..58bd4c5a
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig
@@ -0,0 +1,10 @@
+#
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+config BOARD_ENABLE_DCDC
+	bool "Enable DCDC mode"
+	select SOC_DCDC_NRF52X
+	default y
+	depends on BOARD_SPARKFUN_PRO_NRF52840_MINI
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig.board b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig.board
new file mode 100644
index 00000000..e292a9ed
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig.board
@@ -0,0 +1,9 @@
+# Maker Diary nrf52840 M.2 board configuration
+#
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+config BOARD_SPARKFUN_PRO_NRF52840_MINI
+	bool "sparkfun_pro_nrf52840_mini"
+	depends on SOC_NRF52840_QIAA
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig.defconfig b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig.defconfig
new file mode 100644
index 00000000..45bb7916
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/Kconfig.defconfig
@@ -0,0 +1,30 @@
+#
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+if BOARD_SPARKFUN_PRO_NRF52840_MINI
+
+config BOARD
+	default "sparkfun_pro_nrf52840_mini"
+
+if USB
+
+config USB_NRFX
+	default y
+
+config USB_DEVICE_STACK
+	default y
+
+endif # USB
+
+config BT_CTLR
+	default BT
+
+config ZMK_BLE
+	default y
+
+config ZMK_USB
+	default y
+
+endif # BOARD_SPARKFUN_PRO_NRF52840_MINI
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/README.md b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/README.md
new file mode 100644
index 00000000..0aaae9d9
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/README.md
@@ -0,0 +1,3 @@
+# Sparkfun Pro nrf52840 Mini
+
+https://www.sparkfun.com/products/15025
\ No newline at end of file
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/arduino_pro_micro_pins.dtsi b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/arduino_pro_micro_pins.dtsi
new file mode 100755
index 00000000..0de6f028
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/arduino_pro_micro_pins.dtsi
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2020 Pete Johanson
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/ {
+	pro_micro_d: connector_d {
+		compatible = "arduino-pro-micro";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xffffffc0>;
+		gpio-map-pass-thru = <0 0x3f>;
+		gpio-map
+			= <0 0 &gpio0 15 0>		/* D0 */
+			, <1 0 &gpio0 17 0>		/* D1 */
+			, <3 0 &gpio0 19 0>		/* D3 */
+			, <4 0 &gpio0 20 0>		/* D4/A6 */
+			, <5 0 &gpio0 21 0>		/* D5 */
+			, <6 0 &gpio0 22 0>		/* D6/A7 */
+			, <7 0 &gpio0 23 0>		/* D7 */
+			, <8 0 &gpio0 9 0>		/* D8/A8 */
+			, <9 0 &gpio0 10 0>		/* D9/A9 */
+			, <10 0 &gpio0 2 0>		/* D10/A10 */
+			, <16 0 &gpio0 3 0>		/* D16 */
+			, <14 0 &gpio0 31 0>	/* D14 */
+			, <15 0 &gpio0 30 0>	/* D15 */
+			;
+	};
+
+	pro_micro_a: connector_a {
+		compatible = "arduino-pro-micro";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xffffffc0>;
+		gpio-map-pass-thru = <0 0x3f>;
+		gpio-map
+			= <0 0 &gpio0 29 0>	/* A0 */
+			, <1 0 &gpio0 28 0>	/* A1 */
+			, <2 0 &gpio0 5 0>	/* A2 */
+			, <3 0 &gpio0 4 0>	/* A3 */
+			, <6 0 &gpio0 20 0>	/* D4/A6 */
+			, <7 0 &gpio0 22 0>	/* D6/A7 */
+			, <8 0 &gpio1 9 0>	/* D8/A8 */
+			, <9 0 &gpio1 10 0>	/* D9/A9 */
+			, <10 0 &gpio0 2 0>	/* D10/A10 */
+			;
+	};
+};
+
+pro_micro_i2c: &i2c0 {};
+pro_micro_spi: &spi0 {};
+pro_micro_serial: &uart0 {};
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/board.cmake b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/board.cmake
new file mode 100644
index 00000000..55b44e27
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/board.cmake
@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+board_runner_args(nrfjprog "--nrf-family=NRF52" "--softreset")
+
+include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/blackmagicprobe.board.cmake)
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini.dts b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini.dts
new file mode 100644
index 00000000..3935a2cf
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini.dts
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ * SPDX-License-Identifier: MIT
+ */
+
+/dts-v1/;
+#include <nordic/nrf52840_qiaa.dtsi>
+#include "arduino_pro_micro_pins.dtsi"
+
+/ {
+	model = "Sparkfun Pro nrf52840 Mini MCU";
+	compatible = "sparkfun,sparkfun_pro_nrf52840_mini";
+
+	chosen {
+		zephyr,code-partition = &code_partition;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		blue_led: led_2 {
+			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+			label = "Blue LED";
+		};
+	};
+
+};
+
+&adc {
+	status = "okay";
+};
+
+&gpiote {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&uart0 {
+	compatible = "nordic,nrf-uarte";
+	status = "okay";
+	current-speed = <115200>;
+	tx-pin = <17>;
+	rx-pin = <15>;
+};
+
+&usbd {
+	compatible = "nordic,nrf-usbd";
+	status = "okay";
+};
+
+&i2c0 {
+	compatible = "nordic,nrf-twi";
+	sda-pin = <8>;
+	scl-pin = <11>;
+};
+
+
+&flash0 {
+	/*
+	 * For more information, see:
+	 * http://docs.zephyrproject.org/latest/devices/dts/flash_partitions.html
+	 */
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		sd_partition: partition@0 {
+			label = "softdevice";
+			reg = <0x00000000 0x00026000>;
+		};
+		code_partition: partition@26000 {
+			label = "code_partition";
+			reg = <0x00026000 0x000c6000>;
+		};
+
+		/*
+		 * The flash starting at 0x000ec000 and ending at
+		 * 0x000f3fff is reserved for use by the application.
+		 */
+
+		/*
+		 * Storage partition will be used by FCB/LittleFS/NVS
+		 * if enabled.
+		 */
+		storage_partition: partition@ec000 {
+			label = "storage";
+			reg = <0x000ec000 0x00008000>;
+		};
+
+		boot_partition: partition@f4000 {
+			label = "adafruit_boot";
+			reg = <0x000f4000 0x0000c000>;
+		};
+	};
+};
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini.yaml b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini.yaml
new file mode 100644
index 00000000..489bfaa5
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini.yaml
@@ -0,0 +1,15 @@
+identifier: sparkfun_pro_nrf52840_mini
+name: Sparkfun Pro nrf52840 Mini MCU
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - adc
+  - usb_device
+  - ble
+  - ieee802154
+  - pwm
+  - watchdog
diff --git a/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini_defconfig b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini_defconfig
new file mode 100644
index 00000000..2d38d658
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/arm/sparkfun_pro_nrf52840_mini/sparkfun_pro_nrf52840_mini_defconfig
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_SPARKFUN_PRO_NRF52840_MINI=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+CONFIG_USE_DT_CODE_PARTITION=y
+
+CONFIG_MPU_ALLOW_FLASH_WRITE=y
+CONFIG_NVS=y
+CONFIG_SETTINGS_NVS=y
+CONFIG_FLASH=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_FLASH_MAP=y
diff --git a/keyboards/zmk-config/config/boards/shields/pockettype/Kconfig.defconfig b/keyboards/zmk-config/config/boards/shields/pockettype/Kconfig.defconfig
new file mode 100755
index 00000000..16d55189
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/shields/pockettype/Kconfig.defconfig
@@ -0,0 +1,9 @@
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_POCKETTYPE
+
+config ZMK_KEYBOARD_NAME
+    default "Pockettype!"
+
+endif
diff --git a/keyboards/zmk-config/config/boards/shields/pockettype/Kconfig.shield b/keyboards/zmk-config/config/boards/shields/pockettype/Kconfig.shield
new file mode 100755
index 00000000..8cbd2ff8
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/shields/pockettype/Kconfig.shield
@@ -0,0 +1,5 @@
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_POCKETTYPE
+    def_bool $(shields_list_contains,pockettype)
diff --git a/keyboards/zmk-config/config/boards/shields/pockettype/README.md b/keyboards/zmk-config/config/boards/shields/pockettype/README.md
new file mode 100644
index 00000000..21eff455
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/shields/pockettype/README.md
@@ -0,0 +1,5 @@
+# PocketType!
+
+Standard setup for the [PocketType!](https://mechboards.co.uk/shop/kits/pockettype/) mini keyboard.
+
+The `keymap` directory contains the keyboard layout and were created by [Keyboard Layout Editor](http://www.keyboard-layout-editor.com/). Please note: the zmk keymap is slightly adjusted from the default shown on the main PocketType! pages and QMK.
diff --git a/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.conf b/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.conf
new file mode 100755
index 00000000..e69de29b
diff --git a/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.keymap b/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.keymap
new file mode 100644
index 00000000..8fedd5c1
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.keymap
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+
+/ {
+	keymap {
+		compatible = "zmk,keymap";
+		
+		default_layer {
+			bindings = <
+				&kp ESCAPE  &kp Q     &kp W    &kp E    &kp R  &kp T   &kp Y     &kp U  &kp I      &kp O    &kp P    &kp BSPC
+				&kp TAB     &kp A     &kp S    &kp D    &kp F  &kp G   &kp H     &kp J  &kp K      &kp L    &kp SEMI &kp ENTER
+				&kp LSHFT   &kp Z     &kp X    &kp C    &kp V  &kp B   &kp N     &kp M  &kp COMMA  &kp DOT  &kp SQT  &kp RSHFT
+				&kp LCTRL   &kp LGUI  &kp LALT &kp CAPS &mo 1  &kp DEL &kp SPACE &mo 2  &kp LEFT   &kp UP   &kp DOWN &kp RIGHT
+			>;
+		};
+
+		lower_layer {
+			bindings = <
+				&kp F1     &kp F2     &kp F3     &kp F4 &kp F5 &kp F6 &kp F7 &kp F8     &kp F9     &kp F10   &kp F11     &kp F12
+				&kp N1     &kp N2     &kp N3     &kp N4 &kp N5 &kp N6 &kp N7 &kp N8     &kp N9     &kp N0    &kp MINUS   &kp EQUAL
+				&trans     &trans     &trans     &trans &trans &trans &trans &kp LBKT   &kp RBKT   &kp SLASH &kp BSLH    &kp PIPE
+				&bt BT_CLR &bt BT_PRV &bt BT_NXT &trans &trans &trans &trans &trans     &trans     &trans    &bootloader &reset
+			>;
+		};
+
+		raise_layer {
+			bindings = <
+				&kp PRINTSCREEN  &trans       &trans       &trans       &trans &trans &trans   &kp PG_UP &kp UP   &kp PG_DN    &trans       &trans 
+				&trans           &trans       &trans       &trans       &trans &trans &kp HOME &kp LEFT  &kp DOWN &kp RIGHT    &kp END      &trans 
+				&kp LC(Z)        &kp LC(X)    &kp LC(C)    &kp LC(V)    &trans &trans &trans   &trans    &trans   &kp C_VOL_UP &kp C_VOL_DN &kp C_PP
+				&trans           &trans       &trans       &trans       &trans &trans &trans   &trans    &trans   &trans       &trans       &trans
+			>;
+		};
+	};
+};
diff --git a/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.overlay b/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.overlay
new file mode 100755
index 00000000..3e2963cf
--- /dev/null
+++ b/keyboards/zmk-config/config/boards/shields/pockettype/pockettype.overlay
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix-transform.h>
+
+// TODO: LEDs
+//    pro micro A3
+//    pro micro A2
+
+/ {
+    chosen {
+        zmk,kscan = &kscan0;
+        zmk,matrix_transform = &default_transform;
+    };
+
+    default_transform: keymap_transform_0 {
+        compatible = "zmk,matrix-transform";
+        columns = <12>;
+        rows = <4>;
+
+        map = <
+RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0) RC(0,0)
+RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0) RC(1,0)
+RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0) RC(2,0)
+RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0) RC(3,0)
+        >;
+    };
+
+    kscan0: kscan_0 {
+        compatible = "zmk,kscan-gpio-matrix";
+        label = "KSCAN";
+        diode-direction = "col2row";
+
+        col-gpios
+            = <&pro_micro_a 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro_a 0 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro_d 15 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 14 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 16 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 10 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 8 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 7 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 5 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 4 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 3 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 0 GPIO_ACTIVE_HIGH>
+            ;
+
+        row-gpios
+            = <&pro_micro_d 1 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 2 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 6 GPIO_ACTIVE_HIGH>
+            , <&pro_micro_d 9 GPIO_ACTIVE_HIGH>
+            ;
+    };
+};
diff --git a/keyboards/zmk-config/config/tidbit.keymap b/keyboards/zmk-config/config/tidbit.keymap
index dec0784c..5d04fda9 100644
--- a/keyboards/zmk-config/config/tidbit.keymap
+++ b/keyboards/zmk-config/config/tidbit.keymap
@@ -37,7 +37,7 @@
         compatible = "zmk,keymap";
         default_layer {
             bindings = <
-                           &to 1            &bootloader     &none
+                           &tog 1            &bootloader     &none
                 &none      &none             &none           &kp LC(LA(TAB))
                 &none      &none             &none           &kp LG(DOWN_ARROW)
                 &kp ESCAPE &none             &none           &none
@@ -48,7 +48,7 @@
         };
         num_pad_layer {
             bindings = <
-                                &to 2          &kp KP_NUMLOCK  &kp KP_SLASH
+                                &tog 2          &kp KP_NUMLOCK  &kp KP_SLASH
                 &kp KP_NUMBER_7 &kp KP_NUMBER_8 &kp KP_NUMBER_9 &kp KP_ASTERISK
                 &kp KP_NUMBER_4 &kp KP_NUMBER_5 &kp KP_NUMBER_6 &kp KP_MINUS
                 &kp KP_NUMBER_1 &kp KP_NUMBER_2 &kp KP_NUMBER_3 &kp KP_PLUS
@@ -60,7 +60,7 @@
 
          func_layer {
              bindings = <
-                                &to 0          &reset          &bootloader
+                                &tog 0          &reset          &bootloader
                 &out OUT_TOG    &out OUT_USB    &out OUT_BLE    &none
                 &rgb_ug RGB_TOG &bt BT_PRV      &bt BT_NXT      &bt BT_CLR
                 &ext_power EXT_POWER_TOGGLE_CMD &bt BT_SEL 4    &bt BT_SEL 5    &bt BT_SEL 6