[Keymap] adding emdarcher's keymap for mf68 and tada68 (#6718)

* adding a custom mf68 keymap

* added custom tada68 keymap

* readme edit on tada68 map

* added mac fast-forward and rewind keybindings to tada68 emdarcher keymap

* tada68 keymap documentation and edits

* cleanup and edits

* typo fix in emdarcher's tada68 keymap

* cleaning up emdarcher keymap for tada68

* cleaned up emdarcher keymap for mf68

keyboards/40percentclub/mf68/keymaps/emdarcher/config.h

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+#pragma once
+
+#define GRAVE_ESC_ALT_OVERRIDE

keyboards/40percentclub/mf68/keymaps/emdarcher/keymap.c

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+#include QMK_KEYBOARD_H
+
+#define _QWERTY 0
+#define _FN1 1
+#define _FN2 2
+#define X0 LT(_FN2, KC_CAPS)
+#define X1 MO(_FN1)
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* Default layer */
+  [_QWERTY] = LAYOUT_68_ansi(
+    KC_GESC, KC_1  , KC_2  , KC_3  , KC_4  , KC_5  , KC_6  , KC_7  , KC_8  , KC_9  , KC_0  ,KC_MINS, KC_EQL, KC_BSPC,      KC_INS ,KC_PGUP,
+    KC_TAB , KC_Q  , KC_W  , KC_E  , KC_R  , KC_T  , KC_Y  , KC_U  , KC_I  , KC_O  , KC_P  ,KC_LBRC,KC_RBRC, KC_BSLS,      KC_DEL ,KC_PGDN,
+    X0     , KC_A  , KC_S  , KC_D  , KC_F  , KC_G  , KC_H  , KC_J  , KC_K  , KC_L  ,KC_SCLN,KC_QUOT,    KC_ENTER,
+    KC_LSFT     , KC_Z  , KC_X  , KC_C  , KC_V  , KC_B  , KC_N  , KC_M  ,KC_COMM,KC_DOT ,KC_SLSH,       KC_RSFT,            KC_UP ,
+    KC_LCTL ,KC_LALT ,KC_LGUI ,            KC_SPACE                     ,  X1   ,KC_RALT ,KC_RCTL ,                KC_LEFT,KC_DOWN,KC_RGHT
+  ),
+ /* FN Layer */
+  [_FN1] = LAYOUT_68_ansi(
+    KC_GRV , KC_F1 , KC_F2 , KC_F3 , KC_F4 , KC_F5 , KC_F6 , KC_F7 , KC_F8 , KC_F9 ,KC_F10 ,KC_F11 ,KC_F12 ,  KC_BSPC,     _______,KC_HOME,
+    _______,_______,_______,_______,_______,_______,_______,_______,_______,_______,KC_PSCR,KC_SLCK,KC_PAUS,_______,       _______,KC_END,
+     X0    ,_______,_______,_______,_______,_______,_______,_______,_______,_______,KC_MRWD,KC_MFFD,    _______,
+   _______      ,_______,KC_MPLY,KC_MSTP,KC_MPRV,KC_MNXT,KC_VOLD,KC_VOLU,KC_MUTE,_______,_______,       _______,           _______,
+   _______ ,_______ ,_______ ,             _______,                      _______,_______,_______,                  _______,_______,_______
+  ),
+
+ /* CAPS LOCK layer */
+  [_FN2] = LAYOUT_68_ansi(
+    KC_GRV , KC_F1 , KC_F2 , KC_F3 , KC_F4 , KC_F5 , KC_F6 , KC_F7 , KC_F8 , KC_F9 ,KC_F10 ,KC_F11 ,KC_F12 , KC_BSPC,      KC_VOLU,KC_HOME,
+    _______,_______,_______,_______,_______,_______,_______,_______,_______,_______,_______,_______,_______, _______,      KC_VOLD,KC_END,
+    _______,_______,_______,_______,_______,_______,KC_LEFT,KC_DOWN, KC_UP ,KC_RGHT,_______,_______,    _______,
+    _______     ,_______,_______,_______,_______,_______,_______,_______,_______,_______,_______,       _______,           KC_MUTE,
+    _______ ,_______ ,_______ ,            _______,                      _______,_______,_______,                  KC_MPRV,KC_MPLY,KC_MNXT
+  )
+};
+
+
+
+void led_set_user(uint8_t usb_led){
+    //turn on the Pro Micro's on board LEDs for CAPS LOCK
+    if(IS_LED_ON(usb_led, USB_LED_CAPS_LOCK)){
+        //set led pins to low
+        setPinOutput(B0);
+        writePinLow(B0);
+        setPinOutput(B5);
+        writePinLow(B5);
+    } else {
+        //set to Hi-Z
+        setPinInput(B0);
+        writePinLow(B0);
+        setPinInput(B5);  
+        writePinLow(B5);
+    }
+}

keyboards/40percentclub/mf68/keymaps/emdarcher/readme.md

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+# emdarcher's MF68 Layout
+
+A layout mostly based off the factory layout, but with some modifications. Designed for use in a MAC or Unix environment, and has some VIM inspiration.
+
+- Utilizes the Pro Micro's on board LED's to show the CAPS LOCK status.
+- Added Caps Lock for an extra FN layer with VIM like control on hjlk keys.
+- Made the ESC key use GESC for functionality for Grave and Tilde with shift or GUI modifiers.
+- Added Print Screen, Scroll Lock, and Pause keys on P,[,] keys to add Mac screen brightness control.
+    * On Mac, Scroll Lock is Brightness Down and Pause is Brightness Up, so with this FN+[ = brighness down, FN+] = brightness up
+- Has Mac Fast-forward and Rewind keys mapped for changing media tracks. FN+; = Rewind, FN+' = Fast-forward
+- Moved LGUI to the default MAC Command key position.
+
+Note: By default, this keymap doesn't utilize the backlighting.

keyboards/40percentclub/mf68/keymaps/emdarcher/rules.mk

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+
+BACKLIGHT_ENABLE = no
+