1. PERSONAL ASSISTANCE FOR DUMB AND ILLITERATE S IN
AIRLINES USING WIRELESS COMMUNICATION
By
G.Sai Teja(10JR1A0414)
A.Sushma(10JR1A0402)
J.Mounica(11JR5A0402)
K.pushpa(10JR1A0415)
B.Bhagya(10JR1A0406)
Under the esteemed guidance of
Mr.A.SRINAG,MTECH
Asst.professor of ECE

2. 2
EMBEDDED SYSTEM
 An embedded system is a combination of computer
hardware and software, either fixed in capability or
programmable, that is specifically designed for a
particular function.

3. ABSTRACT
 The main objective of this project is to construct a user friendly
multi-language communication system for illiterate/dumb people
traveling by Airlines.
 For the communicatiton between the passengers and air hostess we
are using ZIG-BEE here.
 In this project we use push button switches and LCD to make it
easy even to illiterates as it is also included with symbols, which
indicates the needs.
 The project is built around the AT89C52 micro controller which
provides all the functionality of the display and wireless control.

4. BLOCK DIAGRAM
TX
TRANSMITTER

5. RECEIVER
RX

6. Circuit diagram
TRANSMITTER

7. RECEIVER

8. Pin diagram of AT89C52
A
T
8
9
C
5
2

9. Features of AT89C52
ROM - 8K bytes
RAM - 256 bytes
Timer - 3
I/O pins - 32
Serial port - 3
Interrupt sources - 8

10. POWER SUPPLY

11. CRYSTAL OSCILLATOR

12. PUSH BUTTON SWITCH

13. LIGHT EMITTING DIODE
They are employed in the
indication of the power
on and off.
They can be used to indicate
the functioning of a load
connected to the device.

14. BUZZER
It is an audio signal in device
which may be mechanical or
Electromechanical or piezo
or electric type.
Typical applications of buzzer
are alarm devices,confirmation
of user Input such as mouse click,
key stroke.

15. LCD DISPLAY

16. ZIGBEE
Features
• Frequency – 2.4GHz ISM band
• Operating range – around 76m
• Operating Voltage – 2.1 – 3.6V dc
• Data Rate - 250Kbps
• Distance-40m
• small size
• Low cost

17. RESULT ANALYSIS
TRANSMITTER SIDE

18. RECEIVER SIDE

19. THANK YOU…

20. ANY QUERIES?