- /cmd_vel -> for controlling movement [geometry_msgs/Twist]
- /front_sensor - ultrasonic distance measureent [sensor_msgs/Range]
- /left_sensor - ultrasonic distance measureent [sensor_msgs/Range]
- /right_sensor - ultrasonic distance measureent [sensor_msgs/Range]
- /rear_sensor - ultrasonic distance measureent [sensor_msgs/Range]
- /camera/depth/image_rect_raw - depth map stream [TODO: type]
- /camera/color/image_raw - video stream [TODO: type]