 int ENB=11;
 int ABS = 100;
 
-void set_speed(const std_msgs::Int16& msg)
+void set_speed(const std_msgs::UInt8& msg)
 {
   int new_speed = msg.data;
   

}  

ros::Subscriber<std_msgs::UInt8> steering_subscriber("robot_car_steering", &move_robot);
ros::Subscriber<std_msgs::Int16> speed_subscriber("robot_car_speed", &set_speed);

std_msgs::Int16 ultrasonic_sensor_message;
ros::Publisher ultrasonic_sensor_publisher("robot_car_ultrasonic_sensor", &ultrasonic_sensor_message);

  {
    ABS = msg.data;
  }
  
  nh.logdebug("Speed set to: " + ABS);
}

void move_robot(const std_msgs::UInt8& msg)
