Add support for keeb.io fourier split keyboard

app/boards/shields/fourier/Kconfig.defconfig

@@ -0,0 +1,20 @@
+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+
+if SHIELD_FOURIER_LEFT
+
+config ZMK_KEYBOARD_NAME
+	default "Fourier"
+
+config ZMK_SPLIT_BLE_ROLE_CENTRAL
+	default y
+
+endif
+
+if SHIELD_FOURIER_LEFT || SHIELD_FOURIER_RIGHT
+
+config ZMK_SPLIT
+	default y
+
+endif

app/boards/shields/fourier/Kconfig.shield

@@ -0,0 +1,9 @@
+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+
+config SHIELD_FOURIER_LEFT
+	def_bool $(shields_list_contains,fourier_left)
+
+config SHIELD_FOURIER_RIGHT
+	def_bool $(shields_list_contains,fourier_right)

app/boards/shields/fourier/fourier.dtsi

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+/ {
+	chosen {
+		zmk,kscan = &kscan0;
+		zmk,matrix_transform = &default_transform;
+	};
+
+	/*
+	 * This transform correspondsto the 60% left without macro keypad and 65% right, even this
+	 * combination of PCBs can have keys in different locations based on configuration.
+	 */
+	default_transform: keymap_transform_0 {
+		compatible = "zmk,matrix-transform";
+		columns = <13>;
+		rows = <4>;
+		map = <
+RC(0,0) 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(0, 11) RC(0,12)
+RC(1,0)   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(1,12)
+RC(2,0)     RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5)  /**/    RC(2,6) RC(2,8) RC(2,9) RC(2,10) RC(2,11) RC(2,12)
+RC(3,0)   RC(3,1) RC(3,2) RC(3,3) RC(3,4)            /**/  RC(3,6)        RC(3,9)  RC(3,10)  RC(3,11)  RC(3,12)
+		>;
+	};
+
+	kscan0: kscan {
+		compatible = "zmk,kscan-gpio-matrix";
+		label = "KSCAN";
+
+		diode-direction = "col2row";
+		row-gpios
+			= <&pro_micro 21 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>  // Row A
+			, <&pro_micro 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>   // Row B
+			, <&pro_micro 7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>   // Row C
+			, <&pro_micro 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>   // Row D
+			;
+	};
+};

app/boards/shields/fourier/fourier.keymap

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/bt.h>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/rgb.h>
+
+/ {
+    keymap {
+        compatible = "zmk,keymap";
+
+// ----------------------------------------------      ----------------------------------------------
+// | ESC  |  Q  |  W  |  E  |  R  |  T  |              |  Y  |  U  |  I  |  O  |  P  |     |  BKSP  |
+// | TAB    |  A  |  S  |  D   |  F  |  G  |             |  H  |  J  |  K  |  L  |  '  |    ENTER   |
+// | SHIFT     |  Z  |  X  |  C  |  V  |  B  |              |  N  |  M  |  ,  |  .  |  /  |  RSHFT  |
+// | LCTRL   | LALT| LGUI |   SPACE        |             |   SPACE/L1  | L2 |  RGUI  |  RALT  |RCTRL|
+// -------------------------------------------        -----------------------------------------------
+
+        default_layer {
+            bindings = <
+    &kp ESC   &kp Q    &kp W    &kp E     &kp R     &kp T   /**/ &kp Y       &kp U  &kp I     &kp O     &kp P     &none  &kp BACKSPACE
+    &kp TAB   &kp A    &kp S    &kp D     &kp F     &kp G   /**/ &kp H       &kp J  &kp K     &kp L     &kp SQT   &kp ENTER
+    &kp LSHFT &kp Z    &kp X    &kp C     &kp V     &kp B   /**/ &kp N       &kp M  &kp COMMA &kp DOT   &kp FSLH  &kp RSHFT
+    &kp LCTRL &kp LALT &kp LGUI &none     &kp SPACE         /**/ &lt 1 SPACE        &mo 2     &kp RGUI  &kp RALT  &kp RCTRL
+            >;
+        };
+
+// ----------------------------------------------      ----------------------------------------------
+// | 1    |  2  |  3  |  4  |  5  |  6  |              |  7  |  8  |  9  |  O  | PSCR |     |  DEL  |
+// | `      |     |  <- |  ^   |  -> |  Vo+ |             |  [  |  ]  |  -  |  =  |  ;  |      \    |
+// | trans     |     |     |     |  V  |  Vo- |              |     |     |    |     |     |  trans  |
+// | trans   | trans| trans |   trans        |             |   trans   | trans | trans | trans|trans|
+// -------------------------------------------        -----------------------------------------------
+
+        symbols_layer {
+            bindings = <
+    &kp N1     &kp N2   &kp N3   &kp N4    &kp N5    &kp N6        /**/ &kp N7    &kp N8   &kp N9    &kp N0    &kp PSCRN  &none  &kp DEL
+    &kp GRAVE  &none    &kp LEFT &kp UP    &kp RIGHT &kp C_VOL_UP  /**/ &kp LBKT  &kp RBKT &kp MINUS &kp EQUAL &kp SEMI   &kp BACKSLASH
+    &trans     &none    &none    &none     &kp DOWN  &kp C_VOL_DN  /**/ &none     &none    &none     &none     &none      &trans
+    &trans     &trans   &trans   &none     &trans                  /**/ &trans             &trans    &trans    &trans     &trans
+            >;
+        };
+
+// ----------------------------------------------      ----------------------------------------------
+// | F1   |  F2 |  F3 |  F4 | F5  |  F6 |              |  F7 |  F8  | F9  | F1O  | F11 |    |  F12  |
+// | CAP      |     | home| PgUp | End |     |           |     |     |     |     |        |         |
+// | trans     |  RGB T  |  RGB M   | PgDn |      |     | BT_NXT | BT_CLR |    |    |    |    |trans|
+// | trans   | trans| trans |   trans        |           | trans   | trans | trans | trans | trans  |
+// -------------------------------------------        -----------------------------------------------
+
+        fn_layer {
+            bindings = <
+    &kp F1     &kp F2          &kp F3          &kp F4    &kp F5     &kp F6    /**/ &kp F7     &kp F8     &kp F9    &kp F10    &kp F11    &none  &kp F12
+    &kp CAPS   &none           &kp HOME        &kp PG_UP &kp END    &none     /**/ &none      &none      &none     &none     &none      &none
+    &trans     &rgb_ug RGB_TOG &rgb_ug RGB_EFF &none     &kp PG_DN  &none     /**/ &bt BT_NXT &bt BT_CLR &none     &none     &none      &trans
+    &trans     &trans          &trans          &none     &trans               /**/ &trans                &trans    &trans    &trans     &trans
+            >;
+        };
+    };
+};

app/boards/shields/fourier/fourier.zmk.yml

@@ -0,0 +1,12 @@
+file_format: "1"
+id: fourier
+name: Fourier Rev. 1
+type: shield
+url: https://github.com/keebio/fourier
+requires:
+  - pro_micro
+features:
+  - keys
+siblings:
+  - fourier_left
+  - fourier_right

app/boards/shields/fourier/fourier_left.overlay

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "fourier.dtsi"
+
+&kscan0 {
+    col-gpios
+        = <&pro_micro 20 GPIO_ACTIVE_HIGH>  // Col1
+        , <&pro_micro 19 GPIO_ACTIVE_HIGH>  // Col2
+        , <&pro_micro 18 GPIO_ACTIVE_HIGH>  // Col3
+        , <&pro_micro 15 GPIO_ACTIVE_HIGH>  // Col4
+        , <&pro_micro 14 GPIO_ACTIVE_HIGH>  // Col5
+        , <&pro_micro 16 GPIO_ACTIVE_HIGH>  // Col6
+        ;
+};

app/boards/shields/fourier/fourier_right.overlay

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "fourier.dtsi"
+
+&default_transform {
+    col-offset = <6>;
+};
+
+&kscan0 {
+    col-gpios
+        = <&pro_micro 20 GPIO_ACTIVE_HIGH>  // Col1
+        , <&pro_micro 19 GPIO_ACTIVE_HIGH>  // Col2
+        , <&pro_micro 18 GPIO_ACTIVE_HIGH>  // Col3
+        , <&pro_micro 15 GPIO_ACTIVE_HIGH>  // Col4
+        , <&pro_micro 14 GPIO_ACTIVE_HIGH>  // Col5
+        , <&pro_micro 16 GPIO_ACTIVE_HIGH>  // Col6
+        , <&pro_micro 10 GPIO_ACTIVE_HIGH>  // Col7
+        ;
+};