The working of the circuit is as follows.
Automatic irrigation system using soil moisture sensor abstract.
Depending on the quality of the sensor it must be inserted near the roots of the plant.
The soil moisture sensor is inserted in the soil.
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.
Automatic plant watering system circuit and working.
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.
Hence the system reduces human intervention and provides required irrigation to field.
It is an arduino based automatic plant watering system that uses a soil moisture sensor.
For example a water content of 0 20 wfv soil moisture and irrigation read more.
The system reads the moisture content of the soil using soil moisture sensor and switches on the motor when the moisture is below the set limit.
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.
On receiving the signal the microcontroller produces an output that drives a relay and operates the water pump.
The author s prototype is shown in fig.
Multiplying the water fraction by volume measurement by 100 will equal the volumetric percent of water in soil.
A properly configured soil moisture sensor can save up to 60 percent of water used in irrigation.
Also lcd is used which is interfaced with microcontroller for displaying the moisture content of soil and water pump status.