This presentation is on Automatic Watering System in Greenhouse using Arduino. Video of this project: https://youtu.be/yYzVZfUBJQo

1. Presentation
on
Automatic Watering System In Greenhouse
International Islamic University Chittagong
Department of Computer Science & Engineering
Prepared By:
Abdur Rahman(C-151023)
Minhajul Alam(C-1510001)
Foyzul Abrar Chy(C-151063)
M. Irfanul Kalam Chy(C-151110)
Yamin Sobhan(C-151020)
Ishrak Md. Imtiaz(C-151099)
Submitted To:
Abdullahil Kafi
Assistant Professor
Dept. of CSE, IIUC

2. Objectives
 To reduce the cost of labor.
 Saving the time is the major purpose of this project.
 To save the plants from being rotten because of over
irrigation.

3. Embedded System
 A microcontroller or microprocessor based system that is built
to control the functions of equipment, machinery or plant.
 Combination of hardware and software for specific
application.

4. Apparatus
 Hardware:
• Moisture Sensor module
• Arduino UNO
• 12V Solenoid Valve
• Adapter 12v
• Resistor 1k ohm
• Diode 1N4007
• Transistor TIP122
• Bread Board
 Software:
• Arduino IDE

6. How does it work:
 We will set a fixed moisture level for three moisture sensors in the Arduino
UNO.
 The three moisture sensors will detect the moisture level from the soil.
 When the detected level of moisture will exceed the given level in the
Arduino UNO, then water supply through solenoid Valve will gonna be off.
 Until then the water supply will go on.

7. Moisture sensor
Arduino UNO
Solenoid Valve
Water Supply
Block Diagram:

8. Arduino UNO:
 Arduino Uno is a microcontroller. It has 14 digital input/output pins (of which
6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a
USB connection, a power jack, an ICSP header and a reset button.

9. Moisture Sensor:
 This is a simple water sensor can be used to detect soil moisture when the soil
moisture deficit module outputs a high level, and vice versa output low.
 Operating voltage 3.3V-5V.

10. Solenoid Valve:
 The 12V solenoid controlled fluid valve. Simply connect a fluid source to the
¾" threaded inlet and it will interrupt the flow until 12V is applied to the fast-
on connectors on the solenoid.

11. Arduino Code:

12. Green House:

13. Project Pictures:

14. Limitations of this Project:
 We didn’t use a gravity-feed solenoid valve. This means that we will need
3 PSI water pressure to fully open the valve.
 As the moisture sensor can’t cover the whole field, the moisture value may vary.
 Moisture Sensor does not give absolute reading of moisture, gives relative.

15. Thank You!