Notice
boards play a vital role mostly in educational institutions. The
events, occasions or any news, which has to be passed to the students,
will be written on the notice boards present in every floor in the
colleges or schools. The present system is like, a person will be told
the news and he has to update this news on all the notice boards present
in the college or school. This will be seen mostly during the
examination seasons.
The
time table or the schedule of the exams has to be given to the
students. This will be done by writing the details on the notice boards.
But this process consumes a lot time to update the news on all the
notice boards and there may be chances that the person responsible may
commit some mistakes or he may be absent sometimes.
So, this may create
disturbances and the entire schedule may be disturbed. To avoid all
these, Wireless Notice Board have been designed which completely
eliminates the manual work.
This
project uses the wireless communication, Zeegbee. The Zeegbee
transmitter will be present at the Principal or the person related to
the issues to be displayed on the notice board. PC keyboard is used as
the input device here in this project. Whenever the user wants to send
the news updated to the notice board, he types that particular message
using keyboard and the same data will be transmitted through Zeegbee
transmitter.
At
the receiving end, the Zeegbee receiver and the decoder will be fixed
to the display panel. The receiver receives the data coming from the
transmitter and the same data will be received by the microcontroller at
the receiver end. The microcontroller sends this data to the display
unit and thus the message given by the user at the transmitter end will
be displayed.
SOFTWARE AND HARDWARE TOOLS:
Software Tools:
- Kiel compiler
- Orcad.
- Proload
Hardware Tools:
- Microcontroller AT89S52.
- LCD
- MAX232
- ZIGBEE
- Buzzer
- PC
- MULTIPLEXER
BLOCK DIAGRAM:
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