mmm

a.c

#define GPIO_RGB 5

// this is used in a lot of places because I was lazy to type the long thing.
// may be it's not even needed anymore, idk
#define FLASH_FN ICACHE_FLASH_ATTR

void FLASH_FN ioInit() {
	// GPIO5 - RGB output
	PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO5_U, FUNC_GPIO5);

	// Configure GPIO directions
	gpio_output_set(0, 0, (1<<GPIO_RGB), 0);
}