Fabrication of Solar Powered Automatic Irrigation System Using Arduino Uno

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Fabrication of Solar Powered Automatic Irrigation System Using
Arduino Uno
S. ARUN PRASATH1, S. KANNAN2
1PG Student, Dept of Energy science and Technology, Periyar University, Salem, Tamil Nadu, India
2Guest Faculty, Dept of Energy science and Technology, Periyar University, Salem, Tamil Nadu, India
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Abstract - An innovative way to maximize water use in
farming operations is the Automated Solar Irrigation
System with Arduino Uno. This system effectively manages
irrigation processes by combining the use of solar
energy harvesting with an automation platform based on
microcontrollers. The project makes use of a network of
sensors to track environmental factors and soil
moisture levels, giving decision-makers in real time
information for effective irrigation. An Arduino Uno
microcontroller, temperature and humidity sensors, rain
sensors, soil moisture sensors, solar panel array, water
pump, and valve control mechanism are the main parts of
the system. When it's necessary to initiate irrigation events,
the Arduino Uno processes sensor data and applies control
algorithms to make sure crops get the right amount of
water. As a sustainable power source, the solar panel array
lowers operating costs and dependence on grid electricity.
By using renewable energy, it also lessens the
environmental impact of the system. The ideal irrigation
schedule is determined by the system's intelligent
control algorithm, which takes into account crop-specific
water requirements, weather forecasts, and soil moisture
readings. This innovative method maximizes crop yield
while preserving water resources and responding to shifting
environmental conditions.
Key Words: Arduino Uno, Solar Panel, Soil Moisture
Sensor, Rain Sensor, Temperature and Humidity Sensor,
Battery.
1.INTRODUCTION
Global food production depends heavily on agricultural
practices, which makes it necessary to implement cutting-
edge technologies to solve issues like water scarcity and
environmental sustainability. Automated irrigation
systems have become revolutionary in this regard,
maximizing crop productivity and water use. In addition to
integrated soil moisture, rain, and humidity sensors,
this paper describes the Fabrication of Solar Powered
Automatic Irrigation System Using Arduino uno as the
control unit. By integrating these sensors, the system is
able to make decisions in real time based on
environmental conditions, which helps agriculture
manage water resources more effectively and conserve
them. The prudent use of water resources is the
cornerstone of sustainable agriculture.
Conventional irrigation techniques frequently lead
to inefficient use of water, which causes either
insufficient or excessive irrigation, both of which have a
negative effect on crop health
and productivity. The incorporation of cuttingedge techno
logies, like sensors and the Arduino Uno microcontroller,
provides an intricate method of managing
irrigation. The brains of the ASIS are the Arduino
Uno microcontroller, which offers a flexible and
programmable platform for sensor integration and
control. The system can precisely adjust irrigation to the
unique requirements of the soil moisture sensors, which
allow it to continuously monitor the moisture content of
the soil.
2.LITERATURE REVIEW
"Automated Solar Powered Irrigation System for
Sustainable Agriculture"
Authors: X. Wang, Y. Liu, Z. Zhang (2018)
This study explores the design and implementation of an
automated solar-powered irrigation system using Arduino
Uno. The research focuses on optimizing energy efficiency
through solar power and integrating soil moisture sensors
for precise irrigation. The results indicate improved crop
yield and reduced energy costs.
"Smart Irrigation System Based on IoT"
Authors: S. Sharma, P. Kumar, N. Joshi (2019)
Investigating the Internet of Things (IoT) paradigm, this
study presents a smart irrigation system utilizing Arduino
Uno. The integration of soil moisture and weather sensors
enables real-time data-driven decision-making. The
research emphasizes the importance of IoT in achieving
sustainable and efficient irrigation practices.
"Development of an Arduino-Based Automated
Irrigation System"
Authors: A. Ahmed, S. Rashid, M. T. Aziz (2020)
Focusing on Arduino-based solutions, this research paper
discusses the development of an automated irrigation
system. Arduino Uno is employed as the central controller,
managing soil moisture sensors and actuators. The study
evaluates the system's performance in terms of water
conservation and crop health.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 11 Issue: 01 | Jan 2024 www.irjet.net p-ISSN: 2395-0072

DEFINITION OF PROBLEM
PROPOSED SYSTEM
PLANNING
SELECTION OF COMPONENTS
FABRICATION PROCESS
OUTPUT AND CONCLUSION
(Documentation)
"Solar-Powered Precision Agriculture Using Arduino"
Authors: R. Gupta, S. Jain, V. Kumar (2017)
This study delves into the integration of solar power with
precision agriculture, utilizing Arduino Uno. The research
emphasizes the role of solar energy in powering sensor
nodes and actuators for irrigation control. The findings
highlight the potential for sustainable agriculture practices
through solar-powered precision irrigation.
"Wireless Sensor Network-Based Smart Irrigation
Control System"
Authors: A. Ali, M. S. Rehman, S. Kim (2018)
Examining the wireless sensor network paradigm, this
study proposes a smart irrigation control system
employing Arduino Uno. Soil moisture and environmental
sensors communicate wirelessly, allowing for real-time
monitoring and control. The research underscores the
efficiency gains and resource conservation achieved
through wireless sensor networks.
"Solar-Powered Drip Irrigation System with Soil
Moisture Sensors"
Authors: K. Patel, A. Gupta, P. Sharma (2019)
Focusing on drip irrigation, this study integrates solar
power with Arduino Uno for a sustainable irrigation
system. Soil moisture sensors guide the precise
application of water through drip irrigation, leading to
water savings and improved crop productivity.
"Automation of Irrigation System Based on Arduino"
Authors: S. Garg, N. Mathur, R. K. Bhaskar (2016)
This research investigates the automation of an irrigation
system using Arduino Uno. The study discusses the
integration of soil moisture and temperature sensors,
emphasizing the role of automation in achieving efficient
water management in agriculture.
3. METHODOLOGY
4. COMPONENTS
1. Arduino Uno: This microcontroller acts as the brain of
the system, receiving sensor inputs and controlling the
water pump accordingly.
2. Soil Moisture Sensor: This sensor measures the soil
moisture content and provides a real-time reading to the
Arduino Uno, enabling it to determine when watering is
necessary.
3. Rain Sensor: The rain sensor detects the presence of
rain and prevents unnecessary watering, saving water and
avoiding over-irrigation.
4. Humidity Sensor: This sensor measures the humidity
levels in the air, helping the system determine whether
additional irrigation is required.
5. 12V DC Water Pump: The water pump delivers water
from the source to the irrigation system. It is powered by a
12V battery, which is charged using a solar panel.

6. 12V 10W Solar Panel: This solar panel generates
electricity from sunlight and charges the 12V battery,
eliminating the need for an external power source.
7. 12V 4Ah Lead Acid Battery: The rechargeable battery
stores energy generated by the solar panel to power the
water pump and the Arduino Uno.
8. MPPT Charge Controller: This controller optimizes the
charging process of the battery, ensuring maximum
efficiency by tracking the maximum power point of the
solar panel.
9. 9V Regulator for Arduino Uno: The regulator step-
downs the voltage from the 12V battery to a steady 9V,
which is the operating voltage for the Arduino Uno.
5. BLOCK DIAGRAM
6. FABRICATION PROCESS
1. Connect the solar panel and MPPT charge controller:
Wire the solar panel to the charge controller, ensuring the
correct polarity. Connect the battery to the charge
controller as well.
2. Connect the charge controller to the 12V battery: Make
appropriate connections between the charge controller
and the battery. Ensure that the voltage rating of the
battery matches the system requirements.
3. Wire the sensors to the Arduino Uno: Connect the soil
moisture, rain, and humidity sensors to the appropriate
digital or analog pins on the Arduino Uno. Refer to the
sensor datasheets and Arduino documentation for the pin
configurations.
4. Power the Arduino Uno: Use the 9V regulator to step-
down the voltage from the 12V battery to a steady 9V.
Connect the regulated output to the Vin pin on the Arduino
Uno.
5. Connect the water pump to the Arduino Uno: Wire the
water pump to a suitable relay module or motor driver
controlled by the Arduino. Ensure that the relay or motor
driver can handle the power requirements of the water
pump.
6. Upload the code to the Arduino Uno: Write a program
that reads sensor values, analyzes them, and controls the
water pump accordingly. This program should include
appropriate conditional statements to determine when
watering is necessary.
7. Test and calibrate the system: Place the soil moisture
sensor in a representative soil sample and adjust the code
to establish the desired moisture threshold. Simulate rain
and varying humidity levels to validate the system's
responsiveness and accuracy.
7.RESULTS AND INTREPRETATION
A successful test and design have been completed for the
"Fabrication of Solar Powered Automatic Irrigation
System Using Arduino uno". The suggested system
has each part precisely identified and put together so that
it can operate on its own. Different
plants' moisture contents will be measured
using the selected moisture sensors.To determine whether
it is raining or not, a rain sensor is used. Conditions and
temperature in the field are monitored by the temperature
and humidity sensor. A signal is sent by the
moisture sensor to the Arduino board to turn on the water
pump and water the corresponding plant if the moisture
level is found to be below the necessary level. The Water
Pump is signaled to turn off
when the appropriate moisture level is reached.
Consequently, extensive testing has been conducted to
guarantee the intended functionality of the suggested
system. In the designed system, the following real
parameters are recorded and tabulated: 12V
for the solar output voltage; 4 hours for the battery to
charge; 4 points and 2 hours for the battery to
discharge; 12V for the battery voltage; 4AH for the battery
amps; 5V for the Arduino input; dry soil in which the
pump is ON; wet soil in which the pump is off.

Fig -1: Solar Automatic Irrigation Setup
8. CONCLUSIONS
Sustainable and effective agricultural practices have
advanced significantly with the creation and application of
the Arduino Uno-based Automated Solar
Irrigation System. Utilizing solar energy, microcontroller-
based automation, and cutting-edge sensor technology are
all integrated into this creative
system to maximize irrigation operations. A clear path for
future improvements has emerged, significant lessons
have been learned, and the system has shown remarkable
achievements through extensive testing and real-
world deployment.
9. FUTURE ENHANCEMENTS
9.1 Machine Learning Integration: Implementing
machine learning algorithms can enhance the system's
decision-making capabilities by learning from historical
data and adapting to changing conditions.
9.2 Crop-Specific Profiles: Developing the capability to
store and utilize crop-specific water requirements can
further customize the irrigation schedule, optimizing it for
different types of crops.
9.3 Predictive Weather Modelling: Incorporating
advanced weather forecasting models can improve the
system's ability to anticipate environmental changes and
adjust irrigation schedules accordingly.
9.4 IoT Integration for Enhanced Connectivity:
Expanding the system to include Internet of Things (IoT)
connectivity can facilitate more advanced remote
monitoring and control capabilities, enabling real-time
adjustments from anywhere in the world.
ACKNOWLEDGEMENT
I would like to express my special thanks of gratitude to
my guide and our institution who gave me the golden
opportunity to do this wonderful project on the topic
(Fabrication of Solar Powered Automatic Irrigation System
Using Arduino uno), which also helped me in doing lot of
advancements and I came to know about so many new
things. I am really thankful to them.
REFERENCES
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4. EMCON (2006): Feasibility Assessment for the
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5. United States Departments of Agriculture
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investigation of remote control via Android smart phone
Solar output voltage 12V
Battery charging time 4hours
Battery discharging time 4.2hours
Battery voltage 12V Battery Amps 4AH
Arduino input 5V
Soil in Dry condition Pump ON
Soil in wet condition Pump OFF

of Arduino based automated irrigation system using
moisture sensor," 2016 3rd International Conference on
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