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Notice Board is primary thing in any institution / organization or public utility places like bus stations, railway stations and parks. But sticking various notices day-to-day is a difficult process. A separate person is required to take care of this notices display. This project deals about an advanced hi-tech wireless notice board.
Notice Board is primary thing in any institution / organization or public utility places like bus stations, railway stations and parks. But sticking various notices day-to-day is a difficult process. A separate person is required to take care of this notices display. This project deals about an advanced hi-tech wireless notice board.
The project is built around the 8051 micro controller from Atmel.
This micro controller provides all the functionality of the display and
wireless control. It also takes care of creating different display effects for
given text. Display is obtained on LCD (16X2) Matrix Display Array on a printed
circuit board. A GSM/CDMA Mobile Can is used to enter the required text or
notice. The scrolling speed of the text also can be changed according to user
requirement. After entering the text the SMS is sent to the no which is
connected to the LCD display. At any time the user can add or remove or alter
the text according to his requirement. At the receiving end the GSM modem which
is connected to the Max 232 receives the message and is connected to the
microcontroller 8051. The message is displayed on the LCD (16X2) Matrix Display
Array. This project uses regulated 5V, 500mA power supply. 7805 three terminal
voltage regulator is used for voltage regulation.
INTRODUCTION
Notice Board is primary thing in any institution / organization or
public utility places like bus stations, railway stations and parks. But
sticking various notices day-to-day is a difficult process. A separate person
is required to take care of this notices display. This project deals about an
advanced hi-tech wireless notice board.
An embedded system is a combination of software and hardware to
perform a dedicated task. Some of the main devices used in embedded products
are Microprocessors and Microcontrollers, Microprocessors are commonly referred
to as general purpose processors as they simply accept the inputs, process it
and give the output. In contrast, a microcontroller not only accepts the data
as inputs but also manipulates it, interfaces the data with various devices,
controls the data and thus finally gives the result. As everyone in this competitive
world prefers to make the things easy and simple to handle, this project sets
an example to some extent.
Now a day’s every advertisement is going to be digital. The big
shops and shopping centers are using the digital moving displays now. In
Railway station and bus stands everything that is ticket information, platform
number etc. is displaying in digital moving display. But in these displays
if they wants to change the message or style they have to go there and
connect the display to PC or laptop. Suppose the same message if the person
wants to display in main centers of the cities means he have to go there with
laptop and change the message by connecting into PC. This project we can use
mainly for police or army .I.e. displays will be connected to all the main
centers in city if they wants to display messages about something crucial
within 5 minute, they can’t. So keeping in this mind we are designing a new
display system which can access remotely, we are using the GSM technology to
access the display’s is one of the new technology in the embedded field to make
the communication between microcontroller and mobile. This project is a remote
notice board with MODEM connected to it, so if the user wants to display some
messages, he will send the messages in SMS format the MODEM in the display
system will receive the message and update the display according to the
message. For every message received from the user mobile, the system will check
for the password and if the password is correct the controller will display the
message
“GSM based Control System” implements the emerging applications of
the GSM technology. Using GSM networks, a control system has been proposed that
will act as an embedded system which can monitor and control appliances and
other devices locally using built-in input and output peripherals.
GSM
(Global System for Mobile Communications): It is a
cellular communication standard.
SMS
(Short Message Service): It is a service available
on most digital mobile phones that permit the sending of short messages (also
known as text messaging service).
The scope of this project is to introduce a new technology for
notice board display system using GSM. A user can send a message from anywhere
in the world.
BLOCK DIAGRAM
Fig. 1 Block Diagram of Wireless Electronic Notice Board
Using GSM
HARDWARE
REQUIREMENTS
The hardware requirements of the project will be
·
Power Supply
·
8051 series Microcontroller
·
Lamp
·
Push Buttons
·
Transformer
·
Diodes
·
Voltage Regulator
·
Crystal
·
LEDS
·
Capacitors
·
Resistors
·
GSM Modem
·
LCD
·
Level shifter IC
SOFTWARE
REQUIREMENTS
The software requirements of the project will be
§ Keil
compiler
§ Languages:
Embedded C or Assembly
§ DUMPING SOFT WARE:
Using Micro controller flash Software we are
dumping our HEX Code into Micro Controller
ADVANTAGES
§
Wireless system
§
Text can be entered from remote
place
§
Data will not be lost in power
failure condition
§
A lot of interaction and
information sharing occurs.
§
No printing & photocopying
costs.
§
No manual effort.
§
Helps to retain and develop the
knowledge base of your college or office.
§
Saves Time, Energy and finally
Environment.
APPLICATION
§
In offices
§
In educational institutes
§
In bus stations
§
Railway stations
§
In public utility places
§
In hospitals
