qmk_firmware/keyboards/dichotomy/dichotomy.h

#ifndef DICHOTOMY_H
#define DICHOTOMY_H

#include QMK_KEYBOARD_H
#include "report.h"
#include "pointing_device.h"
#include "quantum.h"
#include "matrix.h"
#include "backlight.h"
#include <stddef.h>

#define red_led_off()   PORTF |= (1<<6)
#define red_led_on()    PORTF &= ~(1<<6)
#define blu_led_off()   PORTF |= (1<<5)
#define blu_led_on()    PORTF &= ~(1<<5)
#define grn_led_off()   PORTD |= (1<<1)
#define grn_led_on()    PORTD &= ~(1<<1)

#define set_led_off()     red_led_off(); grn_led_off(); blu_led_off()
#define set_led_red()     red_led_on();  grn_led_off(); blu_led_off()
#define set_led_blue()    red_led_off(); grn_led_off(); blu_led_on()
#define set_led_green()   red_led_off(); grn_led_on();  blu_led_off()
#define set_led_yellow()  red_led_on();  grn_led_on();  blu_led_off()
#define set_led_magenta() red_led_on();  grn_led_off(); blu_led_on()
#define set_led_cyan()    red_led_off(); grn_led_on();  blu_led_on()
#define set_led_white()   red_led_on();  grn_led_on();  blu_led_on()

// This a shortcut to help you visually see your layout.
// The first section contains all of the arguements
// The second converts the arguments into a two-dimensional array
#define LAYOUT( \
  k00, k01, k02, k03, k04, k05,      k06, k07, k08, k09, k0A, k0B, \
  k10, k11, k12, k13, k14, k15,      k16, k17, k18, k19, k1A, k1B, \
  k20, k21, k22, k23, k24, k25,      k26, k27, k28, k29, k2A, k2B, \
                 k33, k34, k35,      k36, k37, k38,      \
            k42, k43, k44, k45,      k46, k47, k48, k49  \
) \
{ \
	{ k00,   k01,   k02,   k03,   k04,   k05,      k06,   k07,   k08,   k09,   k0A,   k0B   }, \
	{ k10,   k11,   k12,   k13,   k14,   k15,      k16,   k17,   k18,   k19,   k1A,   k1B   }, \
	{ k20,   k21,   k22,   k23,   k24,   k25,      k26,   k27,   k28,   k29,   k2A,   k2B   }, \
	{ KC_NO, KC_NO, KC_NO, k33,   k34,   k35,      k36,   k37,   k38,   KC_NO, KC_NO, KC_NO }, \
	{ KC_NO, KC_NO, k42,   k43,   k44,   k45,      k46,   k47,   k48,   k49,   KC_NO, KC_NO }  \
}

#endif