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Interface Soil Sensor With 8051

Soil sensor measure the water content in soil.

  • The Soil Sensor is used to measure the volumetric water content of soil.
  • Soil moisture sensor has two probe through which current passes in soil.
  • Then read the resistance of soil to know the moisture level.
  • Water make the soil more prone to electric conductivity resulting less resistance in soil where on the other hand dry soil has poor electrical conductivity thus more resistance in soil.
  • Using these properties of electricity the sensor is designed.
  • Inside the sensor there are circuitry for measuring the resistance and converting it into voltage as output.

Application

  • Irrigation controller.
  • Gardening.

Hardware Required

  • Soil Sensor.
  • 8051 MicroController.

Pinout

  • VCC:+5v.
  • Gnd: Gnd.
  • OutPut:Digital.

Circuit

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