Post on 04-Jun-2018
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INTRODUCTION OF PROJECT
This Project takes over the task of Ringing of the Bell in Colleges. It replaces
the Manual Switching of the Bell in the College. It has an Real Time Clock
(S!"#$% which tracks over the Real Time. &hen this time e'uals to the Bell
Ringing time then the Rela) for the Bell is switche* on. Time Clock is
*ispla)e* on +C *ispla). The Microcontroller ,T-c/! is use* to control all
the 0unctions. &hen the Real time an* Bell time get e'ual then the Bell is
switche* on for a pre*etermine* time.
This project can 1e use* in the e2am mo*e where user can set the e2am starttime an* e2am en* time. The *ispla) will show the e2am starte* an* when
e2am time over it will show the e2am en* an* 1u33er will ring for in*ication.
The implementation of this automatic college 1ell woul* 1e a*vantageous
since it keeps manual work awa) i.e. there is no re'uirement of an) la1our it
runs automaticall).
BLOCK DIAGRAM:
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MICROCONTROLLER 89c51:
The ,T-C/! is a low4power high4performance CM5S -41it microcomputer
with 6 71)tes of 0lash Programma1le an* 8rasa1le Rea* 5nl) Memor)
(P8R5M%. The *evice is manufacture* using ,tmel9s high *ensit) non4volatile
memor) technolog) an* is compati1le with the in*ustr) stan*ar* MCS4/!
instruction set an* pin out.
The on4chip 0lash allows the program memor) to 1e reprogramme* in4s)stem
or 1) a conventional nonvolatile memor) programmer. B) com1ining a
Micro
Controlle
r
Real Time
Clock
Buzzer Driver
LCD Display
Buzzer
Power Supply
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versatile -41it CP: with 0lash on a monolithic chip the ,tmel ,T-C/! is a
powerful microcomputer which provi*es a highl) fle2i1le an* cost effective
solution to man) applications.
DS1307:
The S!"#$ serial real4time clock (RTC% is a low4power full 1inar)4co*e*
*ecimal (BC% clock;calen*ar plus /< 1)tes of => SR,M. The
clock;calen*ar provi*es secon*s minutes hours *a) *ate month an* )ear
information. The en* of the month *ate is automaticall) a*juste* for months
with fewer than "! *a)s inclu*ing corrections for leap )ear. The clock
operates in either the ?64hour or !?4hour format with ,M;PM in*icator. The
S!"#$ has a 1uilt4in power4sense circuit that *etects power failures an*
automaticall) switches to the 1ackup suppl). Timekeeping operation continues
while the part operates from the 1ackup suppl)
LCD Dis!"#:
It wiil *ispla) the time *ate as well as current room temperature. 5utput of
microcontroller is applie* to the +C *ispla).
B$%%&' ( B$%%&' )'i*&':
5utput of microcontroller is applie* to 1u33er *river which *rives 1u33er after
lecture.
A!ic"+i,-s :
This s)stem can 1e use* in colleges for regular lecture 1ell.
It can 1e also use* in institutes coaching classes etc
This project can 1e use* in companies after some mo*ifications
A)*"-+".&s@
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There is no re'uirement of an) la1our it runs automaticall) A *ecreases
*epen*a1ilit) on human.
The chances of errors are less compare* to manual s)stem.
F$+$'& Sc,&:
&ireless technolog) can 1e use* for further a*vancements
Time ta1le can 1e *ispla)e* after some mo*ifications
REFERENCE BOOKS:/
The -#/! microcontroller @4 7enneth ,)ala
The -#/! microcontroller an* 8m1e**e* s)stems @4 Muhamma* ,li
Ma3i*i
EB/SITES:/
www.all*atasheets.com
www.*atasheetarchieve.com
www.atmel.com
http://www.alldatasheets.com/http://www.datasheetarchieve.com/http://www.atmel.com/http://www.alldatasheets.com/http://www.datasheetarchieve.com/http://www.atmel.com/