Automatic Irrigation System Using Soil Moisture Sensor Block Diagram

The working of automatic irrigation system is very simple and easy to understand.

Automatic irrigation system using soil moisture sensor block diagram. Depending on the quality of the sensor it must be inserted near the roots of the plant. The circuit diagram of the automatic plant watering system is shown in fig. This is very simple and interesting circuit for electronics lovers. In this project we are going to build a transistor based simple soil moisture detector circuit.

When the sensor circuit senses the condition of soil it compares it with the reference voltage 5v. Moisture sensor and motor water pump. In its most basic form moisture sensor senses level of the soil moisture. Hence the system reduces human intervention and provides required irrigation to field.

Block diagram of sensor based automatic drip irrigation system 1 temperature sensor. Temperature sensor has been used for sensing the temperature. According to this system there are two functional components in this project i e. In here the power source provided by the solar panel is being stored in a 12 v battery and then it is converted to dc to ac by the inverter.

The moisture sensor just senses the moisture of the soil. The working of the circuit is as follows. Working of automatic irrigation system. The idea of the project is to implement an automatic irrigation system by sensing the moisture of the soil.

In this project arduino is used for controlling the whole working of the circuit. This soil moisture sensor circuit can be used in many applications like automatic plant irrigation system greenhouse projects etc. Then motor water pump supplies water to plants. Automatic plant watering system circuit and working.

The author s prototype is shown in fig. 2 soil moisture sensor. In this circuit we have used an npn transistor to detect soil moisture. First of all when there is no moisture present in the soil there will be conduction between two probes of the soil sensor.

The soil moisture sensor is inserted in the soil. It is an arduino based automatic plant watering system that uses a soil moisture sensor. Also lcd is used which is interfaced with microcontroller for displaying the moisture content of soil and water pump status. This process is done by a 555 timer.

The soil moisture sensor measures the conductivity of the. Schematic circuit diagram of automatic plant watering irrigation system. On receiving the signal the microcontroller produces an output that drives a relay and operates the water pump. The change in moisture is.