i2c connection

#define USE_I2C

soft serial connection

#define SOFT_SERIAL_PIN D0

#define SOFT_SERIAL_PIN D2

RGB LED connection (single LED chain)

#define SOFT_SERIAL_PIN D2

#define RGB_DI_PIN        B5
#define RGBLED_NUM_LEFT   4
#define RGBLED_NUM_RIGHT  4
#define RGBLED_NUM        (RGBLED_NUM_LEFT+RGBLED_NUM_RIGHT)

RGB LED connection (double LED chain with I2C)

#define USE_I2C

#define RGB_DI_PIN  B5
#define RGBLED_NUM  4

or

#define USE_I2C

#define RGB_DI_PIN       B5
#define RGBLED_NUM_LEFT  4
#define RGBLED_NUM_RIGHT 4
#define RGBLED_NUM       (RGBLED_NUM_LEFT+RGBLED_NUM_RIGHT)
#define RGBLED_SPLIT     { RGBLED_NUM_LEFT, RGBLED_NUM_RIGHT }

RGB LED connection (double LED chain with serial)

#define SOFT_SERIAL_PIN D2

#define RGB_DI_PIN  B5
#define RGBLED_NUM  4
#define RGBLIGHT_SPLIT

or

#define SOFT_SERIAL_PIN D2

#define RGB_DI_PIN        B5
#define RGBLED_NUM_LEFT   4
#define RGBLED_NUM_RIGHT  4
#define RGBLED_NUM        (RGBLED_NUM_LEFT+RGBLED_NUM_RIGHT)
#define RGBLED_SPLIT      { RGBLED_NUM_LEFT, RGBLED_NUM_RIGHT }

RGBLIGHT_SPLIT V.S. RGBLED_SPLIT

#define RGBLIGHT_SPLIT
//or
// #define USE_I2C

#define RGBLED_SPLIT { RGBLED_NUM_LEFT, RGBLED_NUM_RIGHT }