##Overview/概观
本程序用arduino 2560 控制ukit舵机，能实现轮模式和舵机模式。利用巡线传感器、超声波传感器实现巡线和壁障等功能。
This program uses Arduino 2560 to control the ukit's servo. It can be realized Wheel mode and servo mode.
The use of line sensors, ultrasonic sensors, such as line patrol and barrier function.
