servo controller publisher

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hi, i create a subscribe sevo controller like this tutorial wiki/rosserial_arduino/Tutorials/Servo Controller and i want to create a publisher on my PC. i try with this code, but it doesnt work. could you help me please?

  int main(int argc, char **argv)
    {
        ros::init(argc, argv, "servo_publisher");
        ros::NodeHandle n;
        ros::Publisher servo_pub = n.advertise<std_msgs::UInt16>("servo", 1000);
        ros::Rate loop_rate(10);
        int count = 0;
        while(ros::ok())
        {
            std_msgs::UInt16 cmd_msg;
            cmd_msg.data = 10;
            ROS_INFO("%i",cmd_msg.data);
            servo_pub.publish(cmd_msg);
            ros::spin();
            loop_rate.sleep();
            ++count;
        }
        return 0;
    }