The document discusses a project aimed at reducing power wastage and enhancing security in homes through various sensors and a microcontroller system. It outlines hardware and software requirements, describes components such as sensors, LCD displays, and Zigbee communication for wireless networking, and highlights advantages and applications in various settings. Future scope includes expanding the system's capabilities with additional technologies like IR sensors and GPRS for remote monitoring.

1. (Approved by AICTE & Affiliated to JNTU)
Mohabath Nagar, Near Maheshwaram X Road, On Srisailam
Highway, R.R.Dist-501359. A.P. INDIA.
Presented By
B.Praveen Reddy

2. CONTENTS
• Introduction
• Hardware Requirements
• Block Diagram
• Micro Controller
• Sensors
• RS 232
• Buzzer
• LCD Display
• Zibee Communication
• Software Requirements
• Advantages
• Applications
• Conclusion
• Future Scope

3. INTRODUCTION
 Now-a-days we are in need to avoid wastage of power in home.
 As more and more consumer electronics and home appliances are
deployed and the size of them is becoming large, power consumption
in home area tends to grow.
 Through this project we are overcoming the threat by using various
sensors to enhance security and to save power.

4. HARDWARE REQUIREMENTS
 Micro Controller
 LDR sensor
 Temperature sensor
 PIR sensor
 Level Sensor
 Vibration Sensor
 Zigbee modules
 LCD
 RS232 cable
 Crystal Oscillator

5. BLOCK DIAGRAM

6. MICRO CONTROLLER

7. Temperature Sensor (LM35)
 The LM35 sensor series are precision integrated-
circuit temperature sensors, whose output voltage
is linearly proportional to the Celsius (Centigrade)
temperature.
 To detect the heat produced during fire occurrence
we use temperature sensor.

8. PIR Sensor
 PIR stands for Passive Infra-Red.
 PIR is an electronic device that measures infrared
(IR) light radiating from objects in its field of view.
 PIR sensors are often used in the construction of
PIR-based motion detectors.

9. LDR Sensor
 LDR stands for Light Dependent Resistance.
 An LDR will have a resistance that varies
according to the amount of visible light that
falls on it.
 The light falling on the brown zigzag lines on
the sensor, causes the resistance of the device
to fall. This is known as a negative co-efficient.

10. Vibration Sensor (MMA7260Q)
 The MMA7260Q is a 3-axis
accelerometer
 Single axis accelerometers measure
acceleration in only one direction.
 Dual-axis accelerometers are the
most common measure acceleration
in two directions, perpendicular to
each other.
 Three-axis accelerometers measure
acceleration in three directions

11. Level Sensor (LM124)
 The LM124 series consists of four independent,
high gains, internally frequency compensated
operational amplifiers.
 LM124 series can be directly operated off of the
standard +5V power supply voltage which is used in
digital systems

12. RS 232
 RS-232 (serial ports), are now used
almost exclusively for dial-up
modems, like mice, that used to
use serial ports.
BUZZER
 A buzzer or beeper is an audio
signaling device, which may be
mechanical, electromechanical, or
electronic.

13. LCD Display
 A liquid crystal display (LCD) is a thin,
flat electronic visual display that
uses the light modulating properties of
liquid crystals.
 Liquid crystal display is very important
device in embedded system. It offers
high flexibility to user as he can display
the required data on it.

14. Zigbee Communication
 ZIGBEE is a wireless technology developed as an
open global standard to address the unique needs
of low-cost, low-power, wireless sensor networks.
 ZIGBEE is used for wireless communication that is
we can send the data through air.
 The protocol allows devices to intercommunicate
and be powered by batteries that last years
instead of hours.

15. Software Requirement
 PIC-C compiler
 PIC kit 2 programmer
 Express SCH
 Proteus

16. Advantages
 Provides Industrial security.
 Efficient and low cost design.
 Fire and gas detection using sensors.
 Low power consumption.
 Real time monitoring of all sensors.
 Easy to operate.
 This system consumes low power for its working.

17. Applications
 This system can be used in trains.
 This system can be used in waiting halls, shopping
malls, hospitals, cinema theaters etc.
 Best, Effective design based home security
system.
 Audible and visual alerts using buzzer and PC
based monitoring.

18. Conclusion
 Integrating features of all the hardware components used
have been developed in it.
 Presence of every module has been reasoned out and
placed carefully, thus contributing to the best working of
the unit.
 Secondly, using highly advanced IC’s with the help of
growing technology, the project has been successfully
implemented.

19. Future scope
 This project can be extended by using IR sensor, GPRS and 3G technologies.
 IR module helps in alerting if any window or door is open.
 Through GPRS, we can monitor the green house from anywhere in the world
and 3G technologies can be used to view the plants through video calling
option.
 This helps in finding out the emergency times and fast responding to the
situation.