protel画图软件鼠标放大与缩小，甚至可以拖动。轻松使用protel软件。-protel99 drawing software to enlarge and narrow the mouse, or even drag. Protel99 easy to use software.

捕获遥控器的pwm信号兵对其进行放大或者缩小，从而实现对小车的遥控，舵机由遥控器直接控制-Pwm signal soldiers to capture the remote control to zoom in or out, enabling the remote control of the car, steering gear direct control by remote control