automatic plant irrigation system with dry / wet soil sense and controlling 230v water pump for...

Automatic plant irrigation system with dry / wetsoil sense and controlling 230V water pump foragricultural applications using AT89S52 MCU

CONTENTS:

• Objective

• Technology

• Block diagram

• Advantages

• Applications

• Conclusion

• Future scope

OBJECTIVE:• To tackle the problems of agricultural sector regarding irrigation

system with available water resources.

• New concepts are being developed to allow agricultural

automation to flourish and deliver its full potential, so we

consider the implication of developing a new single technology

of Automatic plant irrigation system using AT89S52 MCU

An embedded system is a special purpose

computer system designed to perform one or a few

dedicated functions, often with real time

computing constraints.

It is usually embedded as part of a complete

device including hardware and mechanical parts.

BLOCK DIAGRAM:

POWER SUPPLY UNIT:

AT89S52 Microcontroller:

• The AT89S52 is a low-power, high-performance CMOS 8-bit

microcontroller with 8K bytes of in-system programmable flash

memory.

• By combining a versatile 8-bit CPU with in-system

programmable flash on a monolithic chip, the Atmel AT89S52

is a powerful microcontroller which provides a highly-flexible

and cost-effective solution to many embedded control

applications.

PIN DIAGRAM:

RELAY:

A Relay is an electrically controllable switch widely used in industrialcontrols, automobiles, etc…

inductor

Moisture Sensors:

• It can be also called as a

soil moisture sensor.

• Soil moisture is highly

variable. Accuracy from a

single site isn't enough to

run an experiment.

AC motor:• An electric motor uses

electrical energy to produce

mechanical energy.

• Electric motors are found in

household appliances such

as fans, refrigerators,

washing machines, pool

pumps, floor vacuums, and

fan-forced ovens.

TRAIC (BT136):

TRIAC, from Triode for Alternating

Current, is a generalized trade name for

an electronic component which can

conduct current in either direction when it is

triggered (turned on), and is formally called

bidirectional triode thyristor or bilateral

triode thyristor.

Liquid crystal display (LCD):

• It is a thin, flat panel used for electronically displayinginformation such as text, images, and movingpictures.

• Its uses include monitors for computers, televisions,instrument panels, and other devices ranging fromaircraft cockpit displays, to every-day consumerdevices such as gaming devices, clocks, watches,calculators, and telephones.

Schematic diagram

KITWORKINGSNAPS

ADVANTAGES:

• Night – Day mode sensing

• Low cost

• Highly sensitive

• Reliable circuit

• Complete elimination of manpower

•

APPLICATIONS:•Water roof gardens.

•Agricultural land.

•Home gardens.

•Highly sensitive.

•Works according to soil condition.

•Low cost.

•Reliable circuit.

•Complete elimination of man power.

•Night-Day mode sensing.

CONCLUSION:• This project presents a high sensitive sensors based

automotive device control.

• The tracking controller based on the closed loop

algorithm is designed and implemented with Atmel

89S52 MCU in embedded system domain.

• The light sensitivity resistors are used to determine the

night – day vision.

FUTURE SCOPE:

• The main scope of this project is to make the

irrigation automated.

• With the use of low cost sensors and the simple

circuitry makes this project a low cost product, which

can be bought by a poor farmer.

• This project is best suited for places where water

is scares and to be used in limited quantity.