ARDUINO BASED AUTO IRRIGATION SYSTEM

Under the guidance of Mr. Anand Deshmukh

Presented byAbhishek T

2SD12EE002Shashikala

2SD12EE048Suved Mahajan

2SD12EE057Md. Rafi

2SD12EE065

Need for automation

Circuit Diagra

m

Why Arduino

?

How it

works?

Programming an arduino

Results

Contents

Conclusion

Contd…Advantages &disadvantages

Need for automation• Automatic irrigation systems can be

programmed to discharge more precise amounts of water in a targeted area, which promotes water conservation.

• To ensure the planned usage of water so that a lot of water can be saved from being wasted.

• To ease the work of the farmers by reducing frequent rounds to the field.

• To reduce hazardous electric shocks to the farmers while switching ON the pump.

Why ARDUINO?• A large assortment of included libraries

for interfacing to a wide range of hardware.

• An Arduino includes important on-board peripherals like ADC & DAC , but 8051 won’t.

• Least maintenance is required : once programmed the product may work life long.

• 14 digital pins and 6 analog pins: These pins are key for extending the computing capability of the Arduino into the real world.

• An open source design: debugging is easier because large number of people using and troubleshooting it.

Hardware and software requirementsHardware requirements : 1. Arduino UNO board 2. Soil moisture sensor3. LM-393 Driver4. 20x4 LCD display5. Stepper motor (used as a rotating platform for the water pipe)6. L293D driver for stepper motor7. Submersible Water Pump8. 12V, 2A Adapter9. TIP 122 transistor10. IN4007S Diode11. Resistors 12. 10k pot13. Jumper wires14. Water pipes15. Bread boards. Software requirements : The Arduino software (can be downloaded from official Arduino website)

Circuit diagram

How it works?

o Soil moisture sensor will check the moisture of the soil, When the moisture level of the soil goes below the set value, it will direct the arduino whether it should pump the water or not.

o Once the arduino receives the signal it generates the output that drives a switch and prompts the motor to pump water to the plants.

Design of the switching circuit:

Calculating R1:The above circuit is to be designed for the value of R1 through which pin 13 of arduino sends a signal. From the data sheet of transistor TIP122, we have Current Gain=1000 Current gain = Ic = 2ATo find Ib:Ib = Ib = 2mA.To find R1:R1=(V-Vbe)/IbR1=(5-2)/2x10-3

R1 = 1.5 KΩ (this resistor connects base of TIP122 & pin 13 of arduino)• The status of the water pump and soil is displayed on LCD

which is interfaced to the Arduino. o After the field has got enough water level, microcontroller

recieves the signal from sensor in order to turn off the pump.o Thus the entire system works only when it recieves the signal

from moisture sensor.

Graph obtained for a sample of a soil:

Significance of the graph : It indicates the moisture level of a soil sample. the lowest percentage moisture is 1%(1023) in

the graph i.e. the field is too dry. The field needs to be irrigated.

When the pump starts to irrigate the field the moisture level in the soil increases, when percentage moisture reaches 60% or 62% (400) the pump automatically turns off indicating that there is sufficient moisture in the soil.

Applications• It can be agricultural fields, lawns & as

drip irrigation sytems.• It can be used for cultivation purposes.• It can be used to provide water in

nursery planting arena.• It can be used for wide range of crops as

one can customize reference required for different kind of crops.

• Pond water management and water transfer.

Conclusion• Using the automated irrigation

system optimizes the usage of water by reducing wastage of water.

• The proposed controller eliminates the manual switching mechanism used by the farmers.

• The system can also be designed for temperature sensor based cooling system for temperature sensitive plants.

• The use of this system will be able to contribute to the socio-economic development of the nation.

• It is Fast response & User friendly.

References:[1] Energy management in an automated powered irrigation system Yalla, S.P.; Kumar

K.V.R.; Ramesh, B.Year: 2013 IEEE Conference Publications.

[2] Arduino based Automated irrigation system using power using solar Uddin, J.; Reza,

S.M.T.; Newaz, Q.; Uddin, J.; Islam, T.; Jong-Myon Kim Year: 2012 IEEE Conference

Publications.

[3]Solar powered wireless multi-sensor device for an irrigation system Codreanu, N.;

Varzaru, G.; Ionescu, C. Electronics Technology (ISSE), Year: 2014 IEEE Conference

Publications

[4]The 8051 Microcontroller and Embedded Systems Using Assembly and C Second Edition

Muhammad Ali Mazidi Janice Gillispie Mazidi Rolin D. McKinlay.

[5]M. D. Dukes, J. M. Scholberg,”Soil Moisture Controlled Subsurface Drip Irrigation On

Sandy Soils”,Applied Engineering in Agriculture,Vol. 21(1): 89−101,2005.