AUTOMATIC PLANT WATERING SYSTEM USING ARDUINO BASED PPT

So what is this project? What does it do? Basically this is a soil moisture monitoring system, which detects if the moisture content in the soil is above or below a certain satisfactory threshold value. If it goes below a certain critical point, it is time to water the plant until the soil surrounding the plant is moist enough. An arrangement of a DC motor relay is used to control the watering mechanism.

1. AUTOMATIC PLANT WATERING SYSTEM Prepared By: Saurav Kumar Sandeep Kumar Prasad Rishav Ranjan Submitted To: Nawneet Kr Pandey Head Of Department Computer Science & Engineering

2. OVERVIEW So what is this project? What does it do? Basically this is a soil moisture monitoring system, which detects if the moisture content in the soil is above or below a certain satisfactory threshold value. If it goes below a certain critical point, it is time to water the plant until the soil surrounding the plant is moist enough. An arrangement of a DC motor relay is used to control the watering mechanism.

3. MOTIVATION Before we start with the project itself, lets see what led us to take up this challenge to make this Automated Plant Watering System. In this 21 st century, climate change and depletion of resources have become a major issue to deal with. With the ever growing population and increased demand for natural resources we find ourselves in a middle of a crisis, a crisis which calls for immediate action. Sustainable development must be adopted by each one of us, both on a personal level and socio-industrial level. Among the teeming natural resources which make life possible on earth, perhaps the most important is water. Water shortage has become a crucial issue in most parts of the world. Recently, the state of Maharashtra in India is facing a severe drought which has already claimed many lives. Hence we see that water conservation is of utmost importance.

4. INTRODUCTION Conventional Watering Methods use a lot of water and needless to say, a lot of it is wasted on a daily basis With the help of advanced methods of watering, which should ideally use just the correct amount of water needed for the plants, we could save a considerable amount of water This system uses Arduino Uno and Moisture Sensor to provide adequate amount of water needed by plant This system works automatically without any human intervention.

5. EQUIPMENTS USED Arduino Uno Soil Moisture Sensor LCD Display Relay DC Pump Potentiometer Power Source ( Rechargeable Battery)

6. THE ARDUINO UNO The Arduino is an open- source microcontroller based kit for building digital devices and interactive objects that can sense and control objects in the physical world The Arduino based provides sets of digital and analog I/O pins that can be interfaced to various expansion boards and other circuits For programming the microcontrollers, the Arduino has a specific software associated with it which provides an integrated development environment (IDE) based on the processing project, which includes support for the C and C++ programming language.

7. THE ARDUINO UNO

8. SOIL MOISTURE SENSOR Soil moisture sensors measure the volumetric water content in soil. It indirectly measures by using some other property of the soil, such as electrical resistance, dielectric constant or interaction with nutrient as a proxy for the moisture content. The soil moisture sensor uses capacitance to measure dielectric permittivity of the surrounding medium. In soil, dielectric permittivity is a function of the water content. The sensor creates a voltage proportional to the dielectric permittivity, and therefore the water content of the soil.

9. SOIL MOISTURE SENSOR

10. LCD DISPLAY An LCD is an electronic display module which uses liquid crystal to produce a visible image. The 16×2 LCD display is a very basic module commonly used in circuits. The 16x2 LCD displays 16 character per line in 2 lines. In this LCD each character is displayed in 5x7 pixel matrix.

11. LCD DISPLAY

12. RELAY A  relay  is an  electrically  operated  switch . It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal.

13. RELAY

14. DC PUMPS A  pump  is a device that moves fluids ( liquids  or  gases ), by mechanical action. This is lightweight, small size, high efficiency, low consumption and low noise water pump.

15. DC PUMPS

16. POTENTIOMETER A  potentiometer  is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider Potentiometers is used to control the brightness of the LCD

17. POTENTIOMETER

18. POWER SOURCE (RECHARGABLE BATTERY) When selecting the appropriate battery for this project, some important points must be considered Firstly, it should be environmentally friendly Secondly, it should be of stable quality and high reliability Also, it must be rechargeable type, so it will not contribute to pollution of the environment

19. POWER SOURCE (RECHARGABLE BATTERY)

20. BLOCK DIAGRAM LCD SCREEN ARDUINO UNO R3 LM393 DRIVER RELAY DRIVER RELAY WATER PUMP SOIL MOISTURE SENSOR

21. CIRCUIT DIAGRAM

22. WORKING The Soil Moisture sensor continuously monitors the moisture in the soil and sends that information to the Arduino with values lying in the range 0 to 1023 If soil moisture content goes below a certain point, which is decided by the threshold value given in the Arduino code, the Arduino signals the relay to turn ON the motor The motor will remain ON till the moisture in the soil reaches required threshold When the moisture in the soil reaches the require threshold, it will automatically turn OFF the motor.

23. ADVANTAGES Water Conservation. Real time data. Low operation cost. Efficient and saves time. Increase in productivity. Reduce soil erosion and nutrient leaching.

24. The Final Project When Moisture is high When Moisture is low

25. The Final Setup of the Project

26. THANK YOU