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只要用几个NAND门,就可以控制水泵和其它泵,防止你的地下室泛滥,以及保持水箱中的水位。图1所示电路从一个地下水箱的低水位L1和高水位L2获得12V信号。调整两个水位的间距,以避免
With just a few NAND gates, you can control your pumps and other pumps to prevent flooding of your basement and keep the water level in the tank. The circuit shown in Figure 1 obtains the 12V signal from the low water level L1 and high water level L2 of a groundwater tank. Adjust the spacing between the two water levels to avoid it