通过单片机控制小风扇的工作，单片机对小风扇起到开关的作用，小风扇可以控制喷雾的方向。通过单片机的参数设置，使定时时间和熏球时间在液晶显示屏上显示出来。-Control of a small fan through the microcontroller, the microcontroller play a switching role of the small fan, small fans can control the direction of the spray. Through the MCU parameter is set to make a regular time, and smoked the ball displayed on the LCD screen.