PRESENTATION ON PROJECT

Dept. of Electronics & CommunicationPROJECT TITLE – “KEYPAD INTERFACED ZIGBEE

BASED SECURITY SYSTEM”Prepared by :-Mohit Garg (1221531021)Ebadullah (1221531011)Shivani (1221531307)

Project Guide :- Prof. Preet Kamal Goel

CONTENTS• Introduction• Hardware Required• Atmega 16• Pin Diagram• ZigBee• Overview of LCD Display• Motor Driver IC L293D• Block Diagram• Proteus View• Working• Advantage• Disadvantage• Reference

INTRODUCTION“KEYPAD INTERFACED ZIGBEE BASED SECURITY SYSTEM”

This project is being design for security purpose

It has two stages of security

1) Keypad

2) ZigBee

It is based on Embedded System

It is combination of hardware and software

HARDWARE REQUIRED

• Microcontroller Atmega 16• Keypad• ZigBee• LCD 16x2• Motor Driver IC L293D• Motor• Voltage Regulator 7805

MotorMotor Driver IC

Keypad

ATMEGA 16• Advanced RISC Architecture• High-performance, Low-power ,

8-bit Microcontroller• 16K bytes of In-System Self-

Programmable Flash• 512 Bytes EEPROM• 1K Byte Internal SRAM

Atmega 16

05/01/2023

• 32 Programmable I/O lines• Master/Slave SPI Serial Interface• 8-Channel , 10-bit ADC• Programmable Serial USART• Two 8-bit Timer/Counters• Four PWM Channels • Up to 16 MIPS Throughput at 16 MHz

ATMEGA 16 Continued ..

PIN DIAGRAM

ZIGBEE• ZigBee is a IEEE 802.15.4-based specifications for a

suite of high-level communication protocols used to create personal area networks with small, low-power digital radios.

• It is simpler and less expensive than other wireless personal area networks (WPANs), such as Bluetooth or Wi-Fi.

• Uses: Electric Meters, Thermostats, Security Systems, Light Switches, Traffic Management, Projects.

ZIGBEE Contd…

• It has a non standard pin size.

• UART interface. Uses tx-rx.• To Program ZigBee use a

FTDI UART to USB convertor.

• ZigBee uses 3.3 volts.• Its range is 10-100m.

Zigbee

OVERVIEW OF LCD DISPLAY• This can be easily connected with

microcontroller and microprocessor• 16x2 Is most popular LCD display• It has 2 rows & 16 columns• LCD has two registers, namely,

Command and Data• The command register stores the

command instructions given to the LCD

• The data register stores the data to be displayed on the LCD

LCD Display 16x2

MOTOR DRIVER IC L293D

Motor Driver IC L293D

• Motor driver IC L293D is used to provide interface between MCU & Motor

• It has two H-bridge driver• Motor driver IC does not

amplify the current ; it only acts as a switch.

• Output current per channel = 600mA for L293D

BLOCK DIAGRAM

MICROCONT-ROLLER

ATMEGA 32

ZIGBEE

LCD

MOTOR DRIVER

ICL293D

MOTOR

KEYPAD

PROTEUS VIEW

WORKING

• Numeric keypad is interfaced with port of the

microcontroller.

• LCD is used to show the entered password or all the

messages we want to show when entered password is

correct/wrong.

• Authorized user has to enter the security code using

zigbee.

• Controller check the entered password from the

password saved in it.

• If entered code is correct then user has to verify it

through keypad

• The password entered through keypad may be same

as entered through zigbee or may be different.

• When verification is done then motor start rotating

which represents the opening of door.

WORKING Contd..

ADVANTAGE

• It provide more security as compared to the single stage security system

• It easy to use• Less circuit complexity• It based on new technology• Cheaper in cost

DISADVANTAGE

• Biometric security systems are more secure then this

system but they are also more costly

SOFTWARE REQUIRED

• Programmers Notepad [WinAVR]• Proteus 8 Professional• XCTU

REFERENCE

• “AVR Microcontroller and Embedded systems” by Muhammad Ali Mazidi, Sarmad Naimi and Sepehr Naimi, Pearson Education.

• Student Reference Guide :- Embedded System & Robotics• https://www.youtube.com/watch?v=VzgUtZyiHhE• http://www.atmel.com/images/doc2466.pdf• www.digi.com/pdf/ds_xbee_zigbee.pdf• www.ti.com/lit/ds/symlink/l293.pdf• https://en.wikipedia.org/wiki/ZigBee• https://en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller• https://en.wikipedia.org/wiki/Rectifier• http://dybkowski.net/download/winavr-user-manual.html• http://www.labcenter.com/products/vsm/vsm_overview.cfm

THANK YOU….