IINTRODUCTIONNTRODUCTION InIn the world of advance electronics, life of the world of advance electronics, life of

human beings should be simpler hence to make human beings should be simpler hence to make life more simpler and convenient, we have made life more simpler and convenient, we have made “AUTOMATIC PLANT IRRIGATION SYSTEM”. “AUTOMATIC PLANT IRRIGATION SYSTEM”.

A model of controlling irrigation facilities to help A model of controlling irrigation facilities to help millions of people. This model uses sensor millions of people. This model uses sensor technology with microcontroller to make a smart technology with microcontroller to make a smart switching deviceswitching device . .

The model shows the basic switching mechanism The model shows the basic switching mechanism of Water motor using sensors from any part of of Water motor using sensors from any part of field by sensing the moisture present in the soil. field by sensing the moisture present in the soil.

BLOCK DIAGRAMBLOCK DIAGRAM

MICROCONTROLLER

AT895S2SENSOR CIRCUIT

POWERSUPPLY

LCD SCREEN

MOTOR DRIVER CIRCUIT

PROBES TOSOIL

DC MOTOR

CIRCUIT DIAGRAMCIRCUIT DIAGRAM

WORKINGWORKING Our project consist of three stages namely Our project consist of three stages namely

sensor circuit, microcontroller circuit and sensor circuit, microcontroller circuit and motor driver circuit.motor driver circuit.

Sensor circuit senses the condition of soil and Sensor circuit senses the condition of soil and compares the voltage with the reference compares the voltage with the reference voltage i.e.,5v this is done by the IC timer 555.voltage i.e.,5v this is done by the IC timer 555.

If the condition of soil is less than the If the condition of soil is less than the reference voltage i.e.,dry then the IC timer reference voltage i.e.,dry then the IC timer send the high signal (logic ‘send the high signal (logic ‘11’ ) to ’ ) to Microcontroller PORT Microcontroller PORT 3939, this will turn ‘ON’ , this will turn ‘ON’ the motor driver circuit (l293d) which the motor driver circuit (l293d) which connected at PORT connected at PORT 2121 and make motor to and make motor to pump water to rhe field.pump water to rhe field.

When the soil becomes wet i.e, greater When the soil becomes wet i.e, greater than reference voltage(5v) the timer send than reference voltage(5v) the timer send logic ‘0’ signal to microcontroller which logic ‘0’ signal to microcontroller which will turn ‘off’ the motor driver circuit and will turn ‘off’ the motor driver circuit and stop pumping water to the field.stop pumping water to the field.

The condition of motor and soil are The condition of motor and soil are displayed in the LCD screendisplayed in the LCD screen..

In this way the process is repeated, In this way the process is repeated, whenever there is need of water to the whenever there is need of water to the field.field.

APPLICATIONSAPPLICATIONS

Irrigation In Fields.Irrigation In Fields. Irrigation In Gardens, Parks.Irrigation In Gardens, Parks. Very Efficient For Paddy, Rice Fields.Very Efficient For Paddy, Rice Fields. PicsiculturePicsiculture. .

MERITSMERITS Highly sensitive, Low cost and Highly sensitive, Low cost and

reliable circuit.reliable circuit. Works according to the soil condition.Works according to the soil condition. Complete elimination of manpower.Complete elimination of manpower. Can handle heavy loads up to 7A.Can handle heavy loads up to 7A. System can be switched into manual System can be switched into manual

mode whenever required.mode whenever required.

DEMERITSDEMERITS This is applicable for only large This is applicable for only large

farms.farms. Have limited life after installation Have limited life after installation

due to the detoriation of the plastic due to the detoriation of the plastic component in a hot, arid climate component in a hot, arid climate when exposed to ultraviolet lightwhen exposed to ultraviolet light..

FUTURE EXTENSIONFUTURE EXTENSION The working of project is basically The working of project is basically

dependent on the output of the humidity dependent on the output of the humidity sensors. Whenever there is need of sensors. Whenever there is need of excess water in the desired field(RICE excess water in the desired field(RICE crops) then it will not be possible by crops) then it will not be possible by using sensor technology. For this we will using sensor technology. For this we will have to adopt the DTMF technology. By have to adopt the DTMF technology. By using this we will be able to irrigate the using this we will be able to irrigate the desired field & in desired amount.desired field & in desired amount.

CONCLUSIONCONCLUSION In present days especially farmers are facing

major problems in watering their agriculture fields, it’s because they have no proper idea about when the power is available so that they can pump water. Even after then they need to wait until the field is properly watered, which makes them to stop doing other activities. Here is an idea which helps not only farmers even for watering the gardens also, which senses the soil moisture and switches the pump automatically when the power is ON.

THTHANK YOU!!ANK YOU!!