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Hi, Good Day, Can I ask for a help regarding on the soil moisture sensor on how i will program it, because i was having a hard time, i’m using PIC16F877A micro-controller, in which the soil sensor detects that the soil is dry the water pump will automatically ON, and when the soil sensor detects that the soil is wet the water pump will automatically OFF, Thank You!!!.
Are you talking about this Soil Moisture Sensor Module ?
It can be interfaced with microcontrollers using ADC or digital GPIO pins. Using analog method you can find the exact moisture content of soil. But if you are using digital output, you can detect when the moisture level crosses a particular level.
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