Automatic Irrigation System Using Soil Moisture Sensor Abstract

The working of the circuit is as follows.

Automatic irrigation system using soil moisture sensor abstract.

Explained in this section is a simple and exciting automatic plant watering system that you can build yourself in just a few hours. Automattic irrigation and plant watering system using arduino and soil moisture sensor this project is about a moisture sensing automatic plant watering system using arduino uno. The author s prototype is shown in fig. It is an arduino based automatic plant watering system that uses a soil moisture sensor.

A properly configured soil moisture sensor can save up to 60 percent of water used in irrigation. The idea of the project is to implement an automatic irrigation system by sensing the moisture of the soil. Multiplying the water fraction by volume measurement by 100 will equal the volumetric percent of water in soil. 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.

The soil moisture sensor is inserted in the soil. Hence the system reduces human intervention and provides required irrigation to field. Depending on the quality of the sensor it must be inserted near the roots of the plant. Also lcd is used which is interfaced with microcontroller for displaying the moisture content of soil and water pump status.

Automatic plant watering system circuit and working. On receiving the signal the microcontroller produces an output that drives a relay and operates the water pump. 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.