From @Makeblock-official 's demo repo, we can barely know the pin map on the board. ``` var PORT1_PIN1 = 11, PORT1_PIN2 = 12, PORT2_PIN1 = 9, PORT2_PIN2 = 10, PORT3_PIN1 = 16, // A2 PORT3_PIN2 = 17, // A3 PORT4_PIN1 = 14, // A0 PORT4_PIN2 = 15, // A1 MOTORL_PWM = 6, MOTORL_DIR = 7, MOTORR_PWM = 5, MOTORR_DIR = 4; ``` We need to know the detail pin map for the board used for mbot. cc/ @ajfisher