Also lcd is used which is interfaced with microcontroller for displaying the moisture content of soil and water pump status.
Automatic irrigation system using soil moisture sensor abstract.
The idea of the project is to implement an automatic irrigation system by sensing the moisture of the soil.
The author s prototype is shown in fig.
Explained in this section is a simple and exciting automatic plant watering system that you can build yourself in just a few hours.
On receiving the signal the microcontroller produces an output that drives a relay and operates the water pump.
It is an arduino based automatic plant watering system that uses a soil moisture sensor.
Multiplying the water fraction by volume measurement by 100 will equal the volumetric percent of water in soil.
The working of the circuit is as follows.
For example a water content of 0 20 wfv soil moisture and irrigation read more.
A properly configured soil moisture sensor can save up to 60 percent of water used in irrigation.
The soil moisture sensor is inserted in the soil.
Automatic plant watering system circuit and working.
Hence the system reduces human intervention and provides required irrigation to field.
Soil moisture and irrigation most soil moisture sensors provide measurements in the unit water fraction by volume wfv or m3m 3 and is symbolized with the greek letter theta θ.
Depending on the quality of the sensor it must be inserted near the roots of the plant.
The aim of the project is to develop an auto irrigation system which measures the moisture of the soil and automatically turns on or off the water supply system.