13-09-2014, 02:48 PM
Display Message on Notice Board using GSM
[attachment=67954]
Abstract
Notice board is primary thing in any institution or organization or
public utility places like bus stops, railway stations or parks. But
sending various notices day to day is a tedious process. This paper
deals with advanced notice board.
It presents an SMS based notice board incorporating the widely used
GSM to facilitate the communication of displaying message on notice
board via user’s mobile phone. Its operation is based on
microcontroller ATMEGA32 programmed in assembly language. A
SIM300 GSM modem with a SIM card is interfaced to the ports of the
microcontroller with the help of AT commands.
When the user sends a SMS via a registered number from his mobile
phone, it is received by SIM300 GSM modem at the receiver’s end.
SIM300 is duly interfaced through a level shifter IC MAX32 to the
microcontroller. The messaged is thus fetched into the microcontroller.
It is further displayed on an electronic notice board which equipped
with LCD display interfaced to microprocessor powered by a regulated
power supply from mains supply of 230 volts ac.
This project is our experiment on real time noticing.
. Introduction
Now-a-days advertisement is going digital. The big shops and the shopping centers use
digital displays now. Also, in trains and buses the information like platform number,
ticket information is displayed in digital boards. People are now adapted to the idea of
the world at its finger-tips. The use mobile phones have increased drastically over
years. Control and communication has become important in all the parts of the world.
5 Level Shifter:
The MAX232 is an IC that converts signals from an RS-232 serial port to signals
suitable for use in TTL compatible digital logic circuits. The MAX232 is a dual
driver/receiver and typically converts the RX, TX, CTS and RTS signals. The drivers
provide RS-232 voltage level outputs (approx. ± 7.5 V) from a single + 5 V supply via
on-chip charge pumps. This makes it useful for implementing RS-232 in devices that
otherwise do not need any voltages outside the 0 V to + 5 V range, as power supply
design does not need to be made more complicated.
Conclusions
The display boards are one of the major communications medium for mass media.
Local language can be added as a variation in this project. This can be achieved by
using graphics and other decoding techniques. Also we realize that this project saves
time, energy and hence environment. Cost of printing and photocopying is also
reduced as information can be given to a large number of people from our fingertips.
Thus we can conclude that this project is just a start, an idea to make use of GSM in
communications to a next level.
[attachment=67954]
Abstract
Notice board is primary thing in any institution or organization or
public utility places like bus stops, railway stations or parks. But
sending various notices day to day is a tedious process. This paper
deals with advanced notice board.
It presents an SMS based notice board incorporating the widely used
GSM to facilitate the communication of displaying message on notice
board via user’s mobile phone. Its operation is based on
microcontroller ATMEGA32 programmed in assembly language. A
SIM300 GSM modem with a SIM card is interfaced to the ports of the
microcontroller with the help of AT commands.
When the user sends a SMS via a registered number from his mobile
phone, it is received by SIM300 GSM modem at the receiver’s end.
SIM300 is duly interfaced through a level shifter IC MAX32 to the
microcontroller. The messaged is thus fetched into the microcontroller.
It is further displayed on an electronic notice board which equipped
with LCD display interfaced to microprocessor powered by a regulated
power supply from mains supply of 230 volts ac.
This project is our experiment on real time noticing.
. Introduction
Now-a-days advertisement is going digital. The big shops and the shopping centers use
digital displays now. Also, in trains and buses the information like platform number,
ticket information is displayed in digital boards. People are now adapted to the idea of
the world at its finger-tips. The use mobile phones have increased drastically over
years. Control and communication has become important in all the parts of the world.
5 Level Shifter:
The MAX232 is an IC that converts signals from an RS-232 serial port to signals
suitable for use in TTL compatible digital logic circuits. The MAX232 is a dual
driver/receiver and typically converts the RX, TX, CTS and RTS signals. The drivers
provide RS-232 voltage level outputs (approx. ± 7.5 V) from a single + 5 V supply via
on-chip charge pumps. This makes it useful for implementing RS-232 in devices that
otherwise do not need any voltages outside the 0 V to + 5 V range, as power supply
design does not need to be made more complicated.
Conclusions
The display boards are one of the major communications medium for mass media.
Local language can be added as a variation in this project. This can be achieved by
using graphics and other decoding techniques. Also we realize that this project saves
time, energy and hence environment. Cost of printing and photocopying is also
reduced as information can be given to a large number of people from our fingertips.
Thus we can conclude that this project is just a start, an idea to make use of GSM in
communications to a next level.