[New Shield] Murphpad (#806)

* initial commit

* initial commit

* Encode, OLED, and RGB Nice Nano support added as well as refining default keymap.

* tweaking keymap

* Prepared murphpad for PR. Includes adding support for second encoder, OLED, and underglow RGB

* Enabled OLED by default.

* removed naked60 config files

* Per PR feedback from ZMK maintainers, added hardware metadata file and renamed Pro Micro pins.

* removed tabs from keymap and replaced with normal spaces

* Update app/boards/shields/murphpad/murphpad.keymap

Co-authored-by: Nick Winans <nick@winans.codes>

* Update app/boards/shields/murphpad/murphpad.zmk.yml

Co-authored-by: Nick Winans <nick@winans.codes>

* Update app/boards/shields/murphpad/murphpad.zmk.yml

Co-authored-by: Nick Winans <nick@winans.codes>

Co-authored-by: honorless <86894501+lesshonor@users.noreply.github.com>
Co-authored-by: Nick Winans <nick@winans.codes>

app/boards/shields/murphpad/Kconfig.defconfig

@@ -0,0 +1,45 @@
+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_MURPHPAD
+
+config ZMK_KEYBOARD_NAME
+	default "MurphPad"
+
+endif
+
+if ZMK_DISPLAY
+
+config I2C
+	default y
+
+config SSD1306
+	default y
+
+config SSD1306_REVERSE_MODE
+	default y
+
+endif # ZMK_DISPLAY
+
+if LVGL
+
+config LVGL_HOR_RES_MAX
+	default 128
+
+config LVGL_VER_RES_MAX
+	default 32
+
+config LVGL_VDB_SIZE
+	default 64
+
+config LVGL_DPI
+	default 148
+
+config LVGL_BITS_PER_PIXEL
+	default 1
+
+choice LVGL_COLOR_DEPTH
+	default LVGL_COLOR_DEPTH_1
+endchoice
+
+endif # LVGL

app/boards/shields/murphpad/Kconfig.shield

@@ -0,0 +1,5 @@
+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_MURPHPAD
+	def_bool $(shields_list_contains,murphpad)

app/boards/shields/murphpad/boards/nice_nano.conf

@@ -0,0 +1,3 @@
+# Uncomment both to enable underglow
+CONFIG_ZMK_RGB_UNDERGLOW=y
+CONFIG_WS2812_STRIP=y

app/boards/shields/murphpad/boards/nice_nano.overlay

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+&spi1 {
+	compatible = "nordic,nrf-spim";
+	status = "okay";
+	mosi-pin = <31>;
+	// Unused pins, needed for SPI definition, but not used by the ws2812 driver itself.
+	sck-pin = <5>;
+	miso-pin = <7>;
+
+	led_strip: ws2812@0 {
+		compatible = "worldsemi,ws2812-spi";
+		label = "WS2812";
+
+		/* SPI */
+		reg = <0>; /* ignored, but necessary for SPI bindings */
+		spi-max-frequency = <4000000>;
+
+		/* WS2812 */
+		chain-length = <8>; /* number of LEDs */
+		spi-one-frame = <0x70>;
+		spi-zero-frame = <0x40>;
+	};
+};
+
+/ {
+	chosen {
+		zmk,underglow = &led_strip;
+	};
+};

app/boards/shields/murphpad/murphpad.conf

@@ -0,0 +1,9 @@
+# Uncomment to turn on logging, and set ZMK logging to debug output
+# CONFIG_ZMK_USB_LOGGING=y
+
+# Uncomment both to enable encoder
+CONFIG_EC11=y
+CONFIG_EC11_TRIGGER_GLOBAL_THREAD=y
+
+# Uncomment to enable OLED
+CONFIG_ZMK_DISPLAY=y

app/boards/shields/murphpad/murphpad.keymap

@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+#include <dt-bindings/zmk/rgb.h>
+
+
+#define TIMEOUT 300
+
+&encoder_1 {
+    status = "okay";
+};
+
+&encoder_2 {
+    status = "okay";
+};
+
+/ {
+    combos {
+        compatible = "zmk,combos";
+        combo_btclr {
+            timeout-ms = <TIMEOUT>;
+            key-positions = <1 6>;
+            bindings = <&bt BT_CLR>;
+        };
+        combo_reset {
+            timeout-ms = <TIMEOUT>;
+            key-positions = <1 3>;
+            bindings = <&reset>;
+        };
+        combo_bootloader {
+            timeout-ms = <TIMEOUT>;
+            key-positions = <1 2>;
+            bindings = <&bootloader>;
+        };
+        combo_bt_nxt {
+            timeout-ms = <TIMEOUT>;
+            key-positions = <1 4>;
+            bindings = <&bt BT_NXT>;
+        };
+    };
+    
+    sensors {
+        compatible = "zmk,keymap-sensors";
+        sensors = <&encoder_1 &encoder_2>;
+    };
+
+
+    keymap0: keymap {
+        compatible = "zmk,keymap";
+
+        default_layer {
+            label = "default layer";
+            bindings = <
+                &bt BT_CLR       &kp TAB      &kp F5          &kp LC(LA(C))     &kp LG(D)   
+                &rgb_ug RGB_TOG  &kp ESC      &kp KP_DIVIDE   &kp KP_MULTIPLY   &kp KP_MINUS    
+                &rgb_ug RGB_EFF  &kp KP_N7    &kp KP_N8       &kp KP_N9         &kp KP_PLUS   
+                &kp C_MUTE       &kp KP_N4    &kp KP_N5       &kp KP_N6         &trans
+                &mo 1            &kp KP_N1    &kp KP_N2       &kp KP_N3         &kp KP_ENTER
+                &kp BSPC         &kp KP_N0    &trans          &kp KP_DOT        &trans
+            >;
+            sensor-bindings = <&inc_dec_kp C_VOL_UP C_VOL_DN &inc_dec_kp PG_UP PG_DN>;
+
+        }; 
+        
+        fn_layer {
+            label = "fn layer";
+            bindings = <
+                &trans      &trans     &trans        &trans          &trans  
+                &trans      &kp KP_NUM &trans        &trans          &trans     
+                &trans      &trans     &trans        &trans             &trans
+                &bt BT_CLR  &trans     &trans        &trans          &trans    
+                &trans      &trans     &trans        &trans          &trans
+                &kp DEL        &trans     &trans        &trans          &trans           
+            >;  
+            sensor-bindings = <&inc_dec_kp PG_UP PG_DN &inc_dec_kp C_VOL_UP C_VOL_DN>;
+                
+        };
+    };
+};

app/boards/shields/murphpad/murphpad.overlay

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+/ {
+	chosen {
+		zmk,kscan = &kscan0;
+	};
+
+	kscan0: kscan {
+		compatible = "zmk,kscan-gpio-matrix";
+		label = "KSCAN";
+
+		diode-direction = "col2row";
+		row-gpios
+			= <&pro_micro 20  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro 16 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro 14 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro 15 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            		, <&pro_micro 18  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            		, <&pro_micro 19  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            ;
+		col-gpios
+			= <&pro_micro 9  GPIO_ACTIVE_HIGH>
+			, <&pro_micro 6  GPIO_ACTIVE_HIGH>
+			, <&pro_micro 5  GPIO_ACTIVE_HIGH>
+			, <&pro_micro 4  GPIO_ACTIVE_HIGH>
+            		, <&pro_micro 10 GPIO_ACTIVE_HIGH>
+			;
+	};
+
+	encoder_1: encoder_1 {
+		compatible = "alps,ec11";
+		label = "Encoder 1";
+		a-gpios = <&pro_micro 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		b-gpios = <&pro_micro 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		resolution = <4>;
+		status = "disabled";
+	};
+	
+	encoder_2: encoder_2 {
+		compatible = "alps,ec11";
+		label = "Encoder 2";
+		a-gpios = <&pro_micro 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		b-gpios = <&pro_micro 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+		resolution = <4>;
+		status = "disabled";
+	};
+
+};
+
+&pro_micro_i2c {
+	status = "okay";
+
+	oled: ssd1306@3c {
+		compatible = "solomon,ssd1306fb";
+		reg = <0x3c>;
+		label = "DISPLAY";
+		width = <128>;
+		height = <32>;
+		segment-offset = <0>;
+		page-offset = <0>;
+		display-offset = <0>;
+		multiplex-ratio = <31>;
+		segment-remap;
+		com-invdir;
+		com-sequential;
+		prechargep = <0x22>;
+	};
+};

app/boards/shields/murphpad/murphpad.zmk.yml

@@ -0,0 +1,12 @@
+file_format: "1"
+id: murphpad
+name: MurphPad
+type: shield
+url: https://mechwild.com/product/murphpad/
+requires: [pro_micro]
+exposes: [i2c_oled]
+features:
+  - keys
+  - display
+  - encoder
+  - underglow