diff --git a/app/boards/shields/cradios/Kconfig.defconfig b/app/boards/shields/cradios/Kconfig.defconfig
new file mode 100644
index 00000000..0aca38fc
--- /dev/null
+++ b/app/boards/shields/cradios/Kconfig.defconfig
@@ -0,0 +1,14 @@
+
+if SHIELD_CRADIOS
+
+config ZMK_KEYBOARD_NAME
+	default "cradios"
+
+# Unable to use interrupts as the same pin number is used
+# across A & B controllers, and STM32F303CCT6 can't enable
+# interrutps for multiple controllers for the same "line"
+# for the external interrupts.
+config ZMK_KSCAN_GPIO_POLLING
+	default y
+
+endif
diff --git a/app/boards/shields/cradios/Kconfig.shield b/app/boards/shields/cradios/Kconfig.shield
new file mode 100644
index 00000000..844d4332
--- /dev/null
+++ b/app/boards/shields/cradios/Kconfig.shield
@@ -0,0 +1,5 @@
+# Copyright (c) 2020 Pete Johanson
+# SPDX-License-Identifier: MIT
+
+config SHIELD_CRADIOS
+	def_bool $(shields_list_contains,cradios)
diff --git a/app/boards/shields/cradios/cradios.dtsi b/app/boards/shields/cradios/cradios.dtsi
new file mode 100644
index 00000000..7c20c009
--- /dev/null
+++ b/app/boards/shields/cradios/cradios.dtsi
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2020 Pete Johanson
+ *
+ * SPDX-License-Identifier: MIT
+ */
+ #include <dt-bindings/zmk/matrix-transform.h>
+ 
+/ {
+	chosen {
+		zmk,kscan = &kscan0;
+		zmk,matrix_transform = &default_transform;
+	};
+
+		
+	default_transform: keymap_transform_0 {
+	compatible = "zmk,matrix-transform";
+        columns = <10>;
+        rows = <4>;
+		map = <
+RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5)  RC(0,6) RC(0,7) RC(0,8) RC(0,9) RC(0,10)
+RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5)  RC(1,6) RC(1,7) RC(1,8) RC(1,9) RC(1,10)
+RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5)  RC(2,6) RC(2,7) RC(2,8) RC(2,9) RC(2,10)
+                        RC(3,4) RC(3,5)  RC(3,6) RC(3,7)
+		>;
+	};	
+	
+			kscan0: kscan {
+			compatible = "zmk,kscan-gpio-direct";
+	};
+	
+		};
diff --git a/app/boards/shields/cradios/cradios.keymap b/app/boards/shields/cradios/cradios.keymap
new file mode 100644
index 00000000..29392241
--- /dev/null
+++ b/app/boards/shields/cradios/cradios.keymap
@@ -0,0 +1,17 @@
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+
+
+/ {
+	keymap0: keymap {
+		compatible = "zmk,keymap";
+
+		default_layer {
+		bindings = <
+		&kp Q &kp W &kp E &kp R &kp T 		&kp Y &kp U  &kp I    &kp O   &kp P 
+				&kp A &kp S &kp D &kp F &kp G 		&kp H &kp J  &kp K    &kp L   &kp SCLN 
+				&kp Z &kp X &kp C &kp V &kp B		&kp N &kp M  &kp CMMA &kp DOT &kp FSLH
+					    &kp DEL &kp RET 		&kp RET &SPC 
+		};
+	};
+};
diff --git a/app/boards/shields/cradios/cradios_left.conf b/app/boards/shields/cradios/cradios_left.conf
new file mode 100644
index 00000000..1e028a78
--- /dev/null
+++ b/app/boards/shields/cradios/cradios_left.conf
@@ -0,0 +1,2 @@
+CONFIG_ZMK_SPLIT=y
+CONFIG_ZMK_SPLIT_BLE_ROLE_CENTRAL=y
diff --git a/app/boards/shields/cradios/cradios_left.overlay b/app/boards/shields/cradios/cradios_left.overlay
new file mode 100644
index 00000000..6f53d8b9
--- /dev/null
+++ b/app/boards/shields/cradios/cradios_left.overlay
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2020 Pete Johanson
+ *
+ * SPDX-License-Identifier: MIT
+ */
+#include "cradios.dtsi"
+
+kscan_0 {
+
+		input-gpios
+		        = <&pro_micro_d 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 16 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 9 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			;
+};
+
+&bt_unpair_combo {
+	key-positions = <0 38>;
+};
+
diff --git a/app/boards/shields/cradios/cradios_right.conf b/app/boards/shields/cradios/cradios_right.conf
new file mode 100644
index 00000000..990cf7c0
--- /dev/null
+++ b/app/boards/shields/cradios/cradios_right.conf
@@ -0,0 +1,2 @@
+CONFIG_ZMK_SPLIT=y
+CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL=y
diff --git a/app/boards/shields/cradios/cradios_right.overlay b/app/boards/shields/cradios/cradios_right.overlay
new file mode 100644
index 00000000..f991ef9c
--- /dev/null
+++ b/app/boards/shields/cradios/cradios_right.overlay
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2020 Pete Johanson
+ *
+ * SPDX-License-Identifier: MIT
+ */
+#include "cradios.dtsi"
+
+&default_transform {
+	col-offset = <5>;
+};
+
+ &kscan0 {
+		input-gpios
+		
+			= <&pro_micro_d 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 16 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 9 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			;
+};
+
+&bt_unpair_combo {
+	key-positions = <0 38>;
+};
+
diff --git a/app/boards/shields/cradios/default.keymap b/app/boards/shields/cradios/default.keymap
new file mode 100644
index 00000000..08210052
--- /dev/null
+++ b/app/boards/shields/cradios/default.keymap
@@ -0,0 +1,19 @@
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+
+
+/ {
+	keymap0: keymap {
+		compatible = "zmk,keymap";
+
+		default_layer {
+		bindings = <
+				&kp Q &kp W &kp E &kp R &kp T 		&kp Y &kp U  &kp I    &kp O   &kp P 
+				&kp A &kp S &kp D &kp F &kp G 		&kp H &kp J  &kp K    &kp L   &kp SCLN 
+				&kp Z &kp X &kp C &kp V &kp B		&kp N &kp M  &kp CMMA &kp DOT &kp FSLH
+					    &kp DEL &kp RET 		&kp RET &kp SPC 
+					    
+					    >;
+		};
+	};
+};