单片机控制的土壤湿度电路

A CIRCUIT TO CONTROL THE HUMIDITY OF THE SOIL WITH THE SINGLE CHIP MICROCOMPUTER 89C2051

不用湿度传感器 ,根据湿度的变化输入给单片机一个信号 ,单片机根据信号电平的高低输出控制信号 ,控制电磁阈的断通 ,以决定是否给土壤喷水 ,从而实现对土壤湿度的控制。

A sign is imported to the 89C2051 and no humidity sensor is used. The single chip microcomputer outputs a controlling signal according to the level of its potential to control whether to turn on or off the threshold , and then to decide whether to give the soil water ; and so the auto-control of the soil's humidity comes true.