Header header # Range 0 to 1, 1 is max throttle float64 throttle # Range 0 to 1, 1 is max brake float64 brake # Range -1 to +1, +1 is maximum left turn float64 steer uint8 NO_COMMAND=0 uint8 NEUTRAL=1 uint8 FORWARD=2 uint8 REVERSE=3 uint8 shift_gears