qmk_firmware/keyboards/nebula12/rules.mk

# MCU name
MCU = STM32F072

BOARD = GENERIC_STM32_F072XB

# Do not put the microcontroller into power saving mode
# when we get USB suspend event. We want it to keep updating
# backlight effects.
OPT_DEFS += -DNO_SUSPEND_POWER_DOWN

# Build Options
#   comment out to disable the options.
#
BACKLIGHT_ENABLE = no              # Enable keyboard backlight functionality
BOOTMAGIC_ENABLE = lite            # Virtual DIP switch configuration
MOUSEKEY_ENABLE = yes              # Mouse keys
EXTRAKEY_ENABLE = yes              # Audio control and System control
CONSOLE_ENABLE = no                # Console for debug
COMMAND_ENABLE = no                # Commands for debug and configuration
SLEEP_LED_ENABLE = no              # Breathing sleep LED during USB suspend
NKRO_ENABLE = yes                  # USB Nkey Rollover
AUDIO_ENABLE = no                  # Audio output on port C6
NO_USB_STARTUP_CHECK = no          # Disable initialization only when usb is plugged in
RGBLIGHT_ENABLE = yes              # Underglow RGB
WS2812_DRIVER = spi                # Underglow RGB Driver

CIE1931_CURVE = yes

# project specific files
SRC +=  keyboards/wilba_tech/wt_main.c \
        keyboards/wilba_tech/wt_rgb_backlight.c \
        drivers/issi/is31fl3731.c \
        quantum/color.c
QUANTUM_LIB_SRC += drivers/chibios/i2c_master.c