[詳解] 21 #define LED_BUILTIN (PIN_LED3) 27 #define PIN_VOLUME (0) 33 #define PIN_DISTANCE (1) 39 #define PIN_BRIGHTNESS (2) 45 #define PIN_LINE_L (3) 51 #define PIN_LINE_R (4) 57 #define PIN_TOGGLE (5) 105 #define PIN_LED6 (13) 111 #define PIN_MOTOR_L (14) 117 #define PIN_MOTOR_R (15) 123 #define PIN_BUZZER (16) 129 #define PIN_FLED_R (17) 135 #define PIN_FLED_G (18) 141 #define PIN_FLED_B (19)