Automatic Plant Watering System Driven by Soil Moisture, Humidity and Rain

In recent days, population growth has led to water scarcity in most of the countries.A large amount of water is not properly utilized in agriculture.This article proposes automatic plant watering system based on soil moisture, humidity and rain.It automatically detects the soil moisture, rain and decides if watering is needed for plant.In this system, soil moisture sensor, checks the moisture value of soil, and if the soil moisture value is low, the microcontroller turns on the water pump to provide water to the plant.The water pump automatically turns off when the system detects sufficient moisture in the soil.Humidity sensor is used to check the air humidity.If the humidity value is too high, then controller turns off the motor.Rain sensor is used to sense the rain drops.If rain water is detected, then microcontroller turns off the pump.This proposed system is fully automated and does not require man power.This system is useful for farms, gardens etc.