AUTOMATIC LPG GAS SENSING WITH ALARM

AUTOMATIC LPG GAS SENSING WITH ALARM
The project deals with the design of an automatic LPG gas sensor,
which can detect the liquefied petroleum gas. The project has been designed
using the micro controller. The project has its own accuracy and has its
timing control. We can implement this project in home, industries, hotels,
where the need to protect the gas exposure. n future we can automatically
open fire extinguisher. When the lea!age of gas automatically an alarm will
be acti"ated.
BLOCK DIAGRAM:
AUTOMATIC LPG GAS SENSING WITH ALARAM
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AUTOMATIC SMOKE SENSING WITH ALARM
The project deals with the design of an automatic smo!e sensor,
which can detect the smo!e. The project has been designed using the micro
controller. The project has its own accuracy and has its timing control. We
can implement this project in home, industries, hotels, where the need to
protect the gas exposure. n future we can automatically open fire
extinguisher. When the lea!age of smo!e automatically an alarm will be
acti"ated.
BLOCK DIAGRAM:
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AUTOMATIC ALCOHOL DETECTION FOR TOLLGATES
The project deals with the design of an automatic alcohol sensor,
which can detect the alcohol consumed person. The project has been
designed using the micro controller. The project has its own accuracy and
has its timing control. We can implement this project in temples, tollgates,
industries, hotels, where the need to protect the gas exposure. When the
detection of /L)#-#L. /utomatically an alarm will be acti"ated.
BLOCK DIAGRAM:
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MICRO CONTROLLER BASED VOTING MACHINE
This project is the best solution to a"oid the fa!e "otes and in "alid
"otes registered by our citi0ens. The project has been designed using a micro
controller 12c34. The memory is a"ailable we can ha"e many number of
candidates and that will reduce the manual counting of "otes at any time we
can !now the result within few minutes of the completion of the "oting
process. n future we may do it as a wireless module also.
BLOCK DIAGRAM:
MICROCONTROLLER BASED VOTING MACHINE
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FASTEST FINGER IDENTIFICATION USING 89C51
n qui0 programs and other specific e"ents we need to !now the time
of the particular e"ent "ery precisely, but this can not be achie"ed in real
time because the pressing actions will ha"e the delay in the order of few
milli seconds with normal switch arrangement and by using gate logics.
-ence we use micro controller 12c34 to sense the press action and acti"ate
the bu00er only for the concerned pressed person indicating that he has
pressed the switch.
BLOCK DIAGRAM
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EFFICIENT TRAFFIC LIGHT CONTROL USING 89C51
The aim of the project is to first sense the traffic density and based on
that we control the traffic. This completely replaces the con"entional traffic
light control system. .ecause the time delay for each direction is fixed in
normally a"ailable traffic control systems. There is no option in the circuit to
increase the time delay based on the traffic conditions. .ut in our project we
sense the amount of traffic and accordingly we proceed further to clear the
traffic.
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EMBEDDED LASER BASED SECURITY SYSTEM.
&ecurity is a major aspect in offices and control rooms. *ot enter into
these restricted areas. /lso documents and other important files should be
protected from fire and illegal users. hence it is necessary to pro"ide a
security system in such places for safety purpose. #ur project aims at
pro"iding such a security system. The circuit consist of fire, heat, door open
8 loc!ed open sense circuit. The heat sensing circuit is sensed by thermister.
When e"er heat is sensed the alarm is acti"ated. The entering of un!nown
person is sensed by the door open with the help of limit switch. the fire is
sensed by the L+% . these all other sensed out puts are input to the
microcontroller and acti"ate the bu00er. The security of the office is ensured.
BLOCK DIAGRAM:
EMBEDDED LASER BASED SECURITY SYSTEM
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EMBEDDED DOWN COUNTER AND UP COUNTER.
The project deals with the design of an automatic counter which can
count both upwards and downwards. The project has been designed using
the micro controller. The project has its own accuracy and has its timing
control i.e. the counter can count based on the different timing delays if we
change the program. /lso this project has the ad"antage of stopping the
count at any moment. When the user wants to count in the re"erse direction
simply he has to press the switch placed in the hardware in order to get the
required output.
BLOCK DIAGRAM
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DIGITAL LED RUNNING DISPLAY.
Light emitting diodes are ad"antages due to their small si0e, low current
consumption and catchy colours they emit. -ere the running display circuit
where n the letters formed by L$+ arrangements light up progressi"ely,
once all the letter of the message ha"e been lit up, the circuit is built around
decade counter feature is its pro"ision of ten fully decoded out puts ma!ing
the ) ideal for use in a whole range of sequencing operation.
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MICRO CONTROLLER BASED LCD MOVING DISPLAY
The projects deals with the design of L)+ mo"ing display -ere the
running display circuit where n the letters formed by arrangements light up
progressi"ely, once all the letter of the message ha"e been lit up, the circuit
is built by micro controller we can do any message with micro controller,
e"en some symbols. We are operating the micro controller by 4;5-? cloc!
frequency.
BLOCK DIAGRAM
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VOICE COMMUNICATION THROUGH LASER.
This project is helpful in transmitting the audio signals "ia
open media and to re con"ert laser signals into audio
wa"eforms. The project is "ery useful in transmitting a
confidential speech data. -ere we use low power laser
modules. The project uses a light sensor to detect the laser. The
signals around > !h0 range is efficiently con"ereted and
recon"erted.
BLOCK DIAGRAM
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MICRO CONTROLLER BASED BI DIRECTIONAL COUNTER.
The project deals with the design of a an automatic counter which can
count both upwards and downwards. The project has been designed using
the micro controller. The project has its own accuracy and has its timing
control i.e. the counter can count based on the different timing delays if we
change the program. /lso this project has the ad"antage of stopping the
count at any moment. When the user wants to count in the re"erse direction
simply he has to press the switch placed in the hardware in order to get the
required output.
BLOCK DIAGRAM
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BANK TOKEN NUMBER DISPLAY USING 89C51.
This project finds its application in all the
commercial ban!s and other par!ing stations. The
problem with the to!en display is that in the
absence of the "oice, naturally a customer may not
be drawn attention only with the display of to!en
numbers in the places li!e ban!s. .ut in our
project we incorporate the display of to!en
numbers along with the .'??$% to tell the digit
displayed on the screen. The project is "ery much
useful to many other places where we ha"e to
count.
BLOCK DIAGRAM:
BANK TOKEN NUMBER DISPLAY USING -89C51
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MICRO CONTROLLER BASED BI DIRECTIONAL OB!ECT COUNTER.
The project deals with the design of a an automatic object counter which
can count both upwards and downwards. The project has been designed
using the micro controller. The project has its own accuracy and has its
timing control i.e. the counter can count based on the different timing delays
if we change the program. /lso this project has the ad"antage of stopping
the count at any moment. When the user wants to count in the re"erse
direction simply he has to press the switch placed in the hardware in order to
get the required output.
BLOCK DIAGRAM
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VOICE COMMUNICATION THROUGH IR
This project is helpful in transmitting the audio signals "ia
open media and to re con"ert % signals into audio wa"eforms.
The project is "ery useful in transmitting a confidential speech
data. -ere we use % modules. The project uses a light sensor
to detect the laser. The signals around > !h0 range is efficiently
con"erted and recon"erted.
BLOCK DIAGRAM:
VOICE COMMUNICATION THROUGH IR
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BURGLAR ALARM TO PROTECT
BANK.
&ecurity is a major aspect in offices and control rooms. *ot enter into
these restricted areas. /lso documents and other important files should be
protected from fire and illegal users. hence it is necessary to pro"ide a
security system in such places for safety purpose.#ur project aims at
pro"iding such a security system. The circuit consist of fire, heat, door open
8 loc!ed open sense circuit.The heat sensing circuit is sensed by thermister.
When e"er heat is sensed the alarm is acti"ated.The entering of un!nown
person is sensed by the door open with the help of limit switch. the fire is
sensed by the L+% . these all other sensed out puts are input to the
microcontroller and acti"ate the bu00er. The security of the office is ensured.
.L#)6 +/G%/57
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MOBILE PHONE SNIFFER.
n many colleges and temples mobile phones are not allowed. .ut still some body
tries to use in the abo"e9mentioned places. We find a solution for that is we detect the
mo"ement of high frequencies in the order of 2<< 5-0. This helps us in finding the
usage of mobile phones automatically so that we can find the persons who are using
mobile phones in the restricted areas.
BLOCK DIAGRAM:
MOBILE PHONE SNIFFER
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/udio amplifier with con"entional cordless spea!ers is "ery con"entional one and
we need some thing to ha"e at the recei"er section. -ence we propose this project to
ma!e a remote controlled audio amplifier to mute and un mute the signals also we use
wireless spea!ers, that means there are no cables to connect the spea!ers and amplifiers.
BLOCK DIAGRAM
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MICRO CONTROLLER BASED ATTENDANCE REGISTER USING
RFID TAG READER.
The project deals with the design of software to be written in
@/&&$5.L(A which maintains effecti"ely the student attendance and
monitors the presence of the student during the wor!ing timings. The project
uses a concept of %:+ B%adio frequency identificationC. The concept is just
to ha"e %:+ tags to be gi"en to each student or employee. These tags will
continually emit electro magnetic radiations, which will be identified by the
recei"er unit interfaced with a 5)%# )#*T%LL$%. There are different
types of %:+s a"alaible. We ha"e designed an acti"e %:+ tag, which has
got a source by itself generated from a regulator ).
BLOCK DIAGRAM
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PC BASED HOME AUTOMATION
The project is actually the design of an P) based home
automations system, which can control the loads at home by
using "arious different places for each equipment. -ere each
de"ice is allocated with each frequency. -ere the circuit senses
the selected switches at a place and accordingly it acti"ates the
high "oltage loads at different places. The project finds its
applications in controlling the industrial de"ices from a remote
place where it is dangerous to switch off or on from the near by
place.
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LASER BASED SECURITY SYSTEM
-ere is a low9cost, in"isible laser circuit to protect your house from thie"es or trespassers. /
laser pointer torch, which is easily a"ailable in the mar!et, can be used to operate this de"ice. The
bloc! diagram of the unit shown in :ig. 4 depicts the o"erall arrangement for pro"iding security
to a house. / laser torch powered by D, power9supply is used for generating a laser beam. /
combination of plain mirrors 54 through 5E is used to direct the laser beam around the house to
form a net. The laser beam is directed to finally fall on an L+% that forms part of the recei"er
unit.
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DIGITAL IC TRAINER SYSTEM
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KIT '$ (,'% 1) *#$ /- (,) )4)"'&)$(% -3 *,#"#*()"'%('*% -3 0-2'* 2#()%
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BLOCK DIAGRAM:
DIGITAL IC TRAINER
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PC BASED COLLEGE BELL ALARM
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BLOCK DIAGRAM:
MICROCONTROLLER BASED AUTOMATIC COLLEGE BELL
SYSTEM
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PC BASED TEMPERATURE MEASUREMENT
The project has to be de"eloped using @cA language. To
monitor the temperature we ha"e lot of methods, but all
those methods will not be used for distributed control
systems. These pc9based systems can gi"e "ery user9
friendly display on the computer. -ere the temperature has
to be con"erted into digital and then fed into the computer.
The project comes under the concept of "irtual
instrumentation.
BLOCK DIAGRAM

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PC BASED ATTENDANCE MAINTENANCE THROUGH RF
The project deals with the design of software to be written in @)A
which maintains effecti"ely the student attendance and monitors the
presence of the student during the wor!ing timings. The project uses a
concept of %:+ B%adio frequency identificationC. The concept is just to
ha"e %:+ tags to be gi"en to each student or employee. These tags will
continually emit electro magnetic radiations, which will be identified by the
recei"er unit interfaced with a computer. The interface chec!s the status of
the parallel port at e"ery instant of time. There are different types of %:+s
a"alaible. We ha"e designed an acti"e %:+ tag, which has got a source by
itself generated from a regulator ).
/nd also we are registering the attendance in the micro controller also
because for uneducated peoples whom cannot to operate the computer and
not only for them we can se the attendance in the micro controller itself.
BLOCK DIAGRAM
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INTELLIGENT HIGHWAY ACCIDENT PREVENTER USING
ULTRASONIC
The project deals with a ultrasonic based concept to
control the accidents occurring in the national highways.
The project controls and pre"ents the accident by the way it
reduces the speed of the "ehicle automatically using a
"ariable speed dri"e. Whene"er the "ehicles come the
particular 0one, then the speed automatically reduces to a
minimum "alue. it ta!e left automatically at the acti"ate
one alarm to alert the dri"er and the passenger.
BLOCK DIAGRAM:
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RFID BASED AUTOMATIC CAR PARKING SYSTEM
This project deals with the design of an remote control of a distant
automobile through o"er blue tooth communication. The project confines
itself in the control of the door by motor in order to implement the robotic9
based sur"eillance system. The protocol has been designed on our own and
the total operation of the "ehicle has been controlled from the remote place.
.L#)6 +/G%/57
TRANSMITTER IN THE CAR
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PC BASED LASER POWER MEASUREMENT
The project is actually the design of an P) based laser
power measurement equipment. -ere the circuit senses the
intensity of the laser which has been focused on the L+% and it
is gi"en to the comparator, the comparator is act as a analog to
digital con"erter, the digital output is gi"en to the P) through
parallel port. The program which we ha"e used @)A language.
This "ery useful in industries.
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ATTENDANCE TRACKING THROUGH RFID
The project deals with the design of software to be written in
@)A which maintains effecti"ely the student attendance and
monitors the presence of the student during the wor!ing timings.
The project uses a concept of %:+ B%adio frequency
identificationC. The concept is just to ha"e %:+ tags to be gi"en to
each student or employee. These tags will continually emit electro
magnetic radiations, which will be identified by the recei"er unit
interfaced with a computer. The interface chec!s the status of the
parallel port at e"ery instant of time. There are different types of
%:+s a"alaible. We ha"e designed an acti"e %:+ tag which has
got a source by itself generated from a regulator ).
P%$P/+ $*$%G( 5$T$%
The project deals with the design of an equipment to read the
energy consumed in particular load through an analog energy
meter and to cut off the total power supplied to a particular load on
prepay basis. .ecause if we !now the importance and the cost of
energy production we will be definitely be aware of consuming
power in a limited way. This prepaid scheme can be implemented
in the places li!e marriage halls, lodges and hotel and e"en in
offices where the supply will be cut off based on the timing and the
amount of energy consumed. The purpose of this project is to
a"oid the on spot billing for power consumption and a post pay
scheme. &o we propose a technique to measure the same energy
through some digital techniques. The %otary arrangement of the
meter is drilled at a corner of the rotating disc. Then through this
hole the light is sent. /s this disc is continuously rotating the light
will be cut off by the dis! during rotation. This project may used
for a centrali0ed measurement of energy from the $. office itself.
.ut this project is restricted to one house.
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The project deals with the design of a security system especially
meant of a two wheelers. .ecause of the tremendous increase in the thefts of
new "ehicles we are in a position to safeguard them through some methods.
$"en the mechanical loc! systems fail because they are easily brea!able
without ma!ing any huge noise. 5ore o"er *ow a days we need lot of
security systems in all !inds area. The security system "aries depends upon
the application Bpassword, finger and "oice etc,C &o we desire to do ta!e
password security system. The project has been designed using the a remote
controller which will acti"ate the watch dog circuit placed in the bi!e. The
project has its own accuracy and has its timing control i.e. based on the
different timing delays which we ha"e implemented in the mono stable multi
"ibrator of the circuit. Whene"er somebody tries to mo"e or ma!e an
attempt to steal the bi!e an alarm will be acti"ated so that the owner and
people can become alert.
BANK TOKEN DISPLAY
ABSTRACT
This project finds its application in all the
commercial ban!s and other par!ing stations. The
problem with the to!en display is that in the
absence of the "oice, naturally a customer may not
be drawn attention only with the display of to!en
numbers in the places li!e ban!s. .ut in our
project we incorporate the display of to!en
numbers along with the .'??$% to tell the digit
displayed on the screen. The project is "ery much
useful to many other places where we ha"e to
count.
%: ./&$+ %$5#T$ )#*T%#LL$+ W%$L$&&
/'T#5/T#* &(&T$5&
The project is actually the design of an %: based home
automations system which can control the loads at home by using
"arious different frequencies for each equipment. -ere each de"ice
is allocated with each frequency. -ere the circuit senses the
selected switches at a remote place and accordingly it acti"ates the
high "oltage loads at different places. The project finds its
applications in controlling the industrial de"ices from a remote
place where it is dangerous to switch off or on from the near by
place.
.'%G'L/% /L/%5 T# P%#T$)T -#5$
This project is designed using the inputs from "arious
sensors in order to protect our homes from the burglars. n
con"entional alarms, any one type of sensor will be used. .ut in
our project we use multi stages of security to sense the presence of
thie"es and to sense the openings of the doors. #nce an attempt is
tried to open the door is made then an alarm is acti"ated to alert the
owners of the home.
P) ./&$+ /'T#5/T) )#LL$G$ .$LL &(&T$5
T,'% "-.)*( #*(>#00= '% #$ )&?)//)/ *'"*>'( (- #*('+#()
(,) *-00)2) ('&)" #( ")@>'")/ ('&) '$()"+#0%. T,)") $))/ $-( ?)
#$= ,>&#$ '$()"+)$('-$% (- #*('+#() (,) *-00)2) ?)00. T,)
*'"*>'("= -3 (,) "-.)*( '% *-$("-00)/ >%'$2 # C
PROGRAMMING. T,) "-2"#& 3-" (,'% "-.)*( '% (- ?) /-$)
?= C. ->" *'"*>'( '% 3>00= #>(-&#('*.
WATER HEATER CONTROLING USING IC
T,) "-.)*( #'&% #( (,) /)%'2$ -3 # *-$("-0 *'"*>'( 1,'*,
*#$ *-$("-0 (,) %>0= 2'+)$ (,) ,)#()" CD')" &-/)0 D ?#%)/
-$ (,) ()&)"#(>") ")@>'")&)$(. I3 (,) ")@>'")/ ()&)"#(>")
'% ")#*,)/ (,)$ 1) %)) (,#( (,) %>0= 2'+)$ (- (,) ,)#()" '% *>(
-33. T,'% (=) -3 *-$("-00)" '% *#00)/ O$/ORR *-$("-00)". T,)
%(")$2(, -3 (,'% "-.)*( '% (,#( 1) #") /-'$2 (,'% "-.)*( 1'(,
(,) '* 1,'*, '% # ">22)/ *-&#"#(-". T,)"&'%(-" '% (- ?) >%)/
(- %)$%) (,) ()&)"#(>")
$5.$++$+ ./&$+ 5#T#% P%#T$)T#* &(&T$5 WT-
%: .L'$ T##T- )#*T%#L
ABSTRACT7
The project deals with the design of equipment to protect the motor
from "oltage swage, o"er temperature. /ll the abo"e parameters are sensed
by the micro controller 12c34 through the comparators and it transmit by
.L'$T##T- B"#/'- 3")@>)$*=D. The sensors we ha"e used that L+%,
T-$%5&T#%. The main part of the project is micro controller, for what
we ha"e used micro controller means it protect motors automatically with
any manpower and the circuit is "ery compact. #ur project is "ery use full to
many industries, where the manpower cannot wor! in that field.
MICROCONTROLLER BASED BATTERY LEVEL
MONITORING SYSTEM
ABSTRACT
The project monitors the o"erall performance
of the battery charging system. This project is "ery
helpful in space station where an efficient control
of batteries is required. n space we are dependent
on solar power only. &o the batteries should be
operated in such a way that its charge ne"er comes
below the dangerous le"el. n order to a"oid that
we are carefully monitoring the battery parameters.
/ll the controls are actually monitored through a
micro controller.
EMBEDDED BASED DISTRIBUTION TRANSFORMER
PROTECTION SYSTEM WITH RF BLUE TOOTH
CONTROL
The project deals with the design of equipment to protect the
distribution transformer from current swage, oil le"el swage, "oltage swage,
o"er temperature. /ll the abo"e parameters are sensed by the micro
controller 12c34 through the comparators and it transmit by .L'$T##T-
B"#/'- 3")@>)$*=D. The sensors we ha"e used that L+%, T-$%5&T#%,
L/&$%. The main part of the project is micro controller, for what we ha"e
used micro controller means it protect the distribution transformer
automatically with any manpower and the circuit is "ery compact. #ur
project is "ery use full to $. stations, where the manpower cannot wor! in
that field.
EONE DETECTION
This project deals with the design of an automatic control of a distant automobile through
o"er blue tooth communication. The blue tooth communication is meant for short
distances of about less than 4<< meter. We ha"e designed the protocol and we are not
following the protocol of the blue tooth. The project confines itself in the control of the
direction and the acceleration of the dc motor in order to implement the robotic based
sur"eillance system. The ultimate aim of this project is focused towards the unmanned
ground "ehicle, which may be extended in future for a long distance communications
from planet to planet. The protocol has been designed on our own and the total operation
of the "ehicle has been controlled from the school 0one and hospital 0one.
MICROCONTROLLER BASED CODE LOCK SYSTEM
The project deals with the design of a security system especially
meant of a two wheelers. .ecause of the tremendous increase in the thefts of
new "ehicles we are in a position to safeguard them through some methods.
$"en the mechanical loc! systems fail because they are easily brea!able
without ma!ing any huge noise. 5ore o"er *ow a days we need lot of
security systems in all !inds area. The security system "aries depends upon
the application Bpassword, finger and "oice etc,C &o we desire to do ta!e
password security system. The project has been designed using a remote
controller, which will acti"ate the watchdog circuit placed in the bi!e. The
project has its own accuracy and has its timing control i.e. based on the
different timing delays which we ha"e implemented in the mono stable multi
"ibrator of the circuit. Whene"er somebody tries to mo"e or ma!e an
attempt to steal the bi!e an alarm will be acti"ated so that the owner and
people can become alert.
AUTOMATIC SPEED REDUCTION FOR E-CARS THROUGH RF IN SAFETY
EONES
This project deals with the design of an automatic control of a distant
automobile through o"er blue tooth communication. The project confines
itself in the control of the direction and the acceleration of the dc motor in
order to implement the robotic based sur"eillance system. The protocol has
been designed on our own and the total operation of the "ehicle has been
controlled from the school 0one and hospital 0one.
WATER LEVEL CONTROLLER USING 89C51
/utomatic tan! Le"el ndicator will continuously shows the a"ailable
water le"el in the o"erhead water tan!s and also sounds alarm when water
le"el falls below the minimum le"el or when it reaches full le"el. The o"er
all operation is controlled by a micro controller and this project can be
connected to actual pumping motor so that the power can be sa"ed if we
efficiently control the motor on time and also we can sa"e some quantity of
water of what e"er fuel for which we maintain the le"el.
.L#)6 +/G%/5
P#W$%
&'PPL(
5)%#
)#*T%#LL$%
*P'T
P#%T
)'%%$*T
+%,$
)#5P/%/T#%
L$,$L
&$*&#%
%$L/( 5#T#%
+&PL/(
EMBEDDED STEPPER MOTOR SPEED AND DIRECTION
CONTROL
This project is precision control of stepper motor speed and direction
based on the speed and direction requirements of the user. The direction of
the stepper motor is controlled by means of rotating the energi0ing the
patterns and changing the delay included in between e"ery step mo"ement
"aries the speed. The speeds and direction of the motor is selectable through
the press switches put in the !ey matrix.
BLOCK DIAGRAM
P#W$%
&'PL(
#'TP'T
P#%T
*P'T
P#%T
µ )
*P'T
!eys
&T$PP$%
5#T#%
)'%%$*T
+%,$
ENERGY MEASUREMENT THROUGH RFID
The project aims at the design of a "ersatile pc based "irtual
instrument for the measurement of energy in the homes. )urrently we ha"e
analog instrument for the measurement, which gi"es the problems li!e in
accuracy, and more power consumption also. /lso $. department people
should come to indi"idual houses to note the reading. /ll the abo"e said
problems are completely eliminated from the scenario in our project. The
digital instrument we are designing is connected to a centrali0ed ser"er using
the rf communication itself and not a separate line which being the strength
of our project. nstantaneous energy consumption is communicated to the
micro computer and the bill is prepared according to the tariff fixed by the
state go"ernment.
BLOCK DIAGRAM:

$*$%G
(
5$T$%
&G*/L
)#*+T
9#*$%
%:
T%/*&.
5icro
contro
ller
L
+
L$+
+&PL/(
)#*T%#L
)%)'T
%:
%$)$,$%
MICRO CONTROLLER BASED AUTOMATIC ROBOTIC ARM
This project deals with a design of micro controller based. This project
can control a robotic arm ideally from a micro controller. the switch pressed
different actions will be done one number for pic!ing and one number for
placing. The project is "ery user friendly and does not require a s!illed
operator to do this. The arm can do a small pic! and place operation
depending on the switches pressed.
BLOCK DIAGRAM
P#W$%
&upply
#'TP'T
P#%T
*P'T
P#%T
µ )
*P'T
!eys
&T$PP$%
5#T#%
%obotic
/%5
)'%%$*T
+%,$
MICRO CONTROLLER BASED CODE LOCK SECURITY
SYSTEM
The project deals with the design of a security system especially meant of a
%$&T)T$+ +##%&. .ecause of the tremendous increase in the thefts we are in a
position to safeguard them through some methods. $"en the mechanical loc! systems fail
because they are easily brea!able without ma!ing any huge noise. 5ore o"er *ow a days
we need lot of security systems in all !inds area. The security system "aries depends
upon the application Bpassword, finger and "oice etc,C &o we desire to do ta!e password
security system. The project has its own accuracy and has its timing control i.e. based on
the different timing delays which we ha"e implemented in the mono stable multi "ibrator
of the circuit. When the code is pressed the door will automatically open using the
microcontroller.
4. BLOCKDIAGRAM:
#'TP'T
P#%T
µ )
P#W$%
&'PL(
*P'T
P#%T
L#)6
)#+$&
)#*T%#L
+%,$
5#T#%
#: T-$
+##%
%$
&$
T
AUTOMATIC TELEVISION MUTING SYSTEM WHILE
RECEIVING TELEPHONE
#ur project is deals with the design of Telephone con"ersation can be
made disturbance free using this project. /s soon as you lift the telephone
handset to con"erse the T, music system or any other application that may
be causing disturbance gets switched off. t turns #* W-$* you place the
handset bac! on the cradle this is achie"ed using polarity guard circuit
compression bridge rectifier opt coupler timer along with the associated
circuitry. We do the e"ery control through a micro controller 12c34.
BLOCK DIAGRAM
Power
&upply
5icro
controller
Tele phone
line
solator
)urrent
dri"e
)urrent
dri"e
tele"ision relay
BATTERY LEVEL MONITORING SYSTEM UP TO 58V
The project monitors the o"erall performance of the battery charging
system. This project is "ery helpful in space station where an efficient
control of batteries is required. n space we are dependent on solar power
only. &o the batteries should be operated in such a way that its charge ne"er
comes below the dangerous le"el. n order to a"oid that we are carefully
monitoring the battery parameters. /ll the controls are actually monitored
through a micro controller.
.L#)6+/G%/57
*+)/T#%
+&PL/( MICRO
)#*T%#LL$%
./TT$%( /+)
)#P/%/T#%
P#W$%
&'PPL(
AUTOMATIC PHASE SEFUENCE DETECTOR
n D phase applications, if low "oltage is a"ailable in any one or Two
phases, and you want your equipment in normal "oltageG this circuit will
sol"e your problem. -owe"er, a proper rating fuse needs to be used in input
lines. This pro"ides correct "oltage in same power supply lines through
relays from the other phase where the correct "oltage is a"ailable
.L#)6 +/G%/5
&T$P
+#W*
+)
,#LT/G$
&T$P
+#W*
+)
,#LT/G$
&T$P
+#W*
+)
,#LT/G$
)#5P/%/T#%
EMBEDDED VEHICLE SECURITY SYSTEM
The project deals with the design of a security system especially
meant of a e bi!e , e car. .ecause of the tremendous increase in the thefts we
are in a position to safeguard them through some methods. $"en the
mechanical loc! systems fail because they are easily brea!able without
ma!ing any huge noise. 5ore o"er *ow a days we need lot of security
systems in all !inds area.
The security system "aries depends upon the application Bpassword,
finger and "oice etc,C &o we desire to do ta!e password security system. The
project has its own accuracy and has its timing control i.e. based on the
different timing delays which we ha"e implemented. When the code is
pressed the door will automatically open using the micro controller.
BLOCKDIAGRAM:
EMBEDDED VECHICLE SECURITY SYSTEM
#'TP'T
P#%T
µ )
P#W$%
&'PPL(
*P'T
P#%T
L#)6
)#+$&
)#*T%#L
+%,$
5#T#%
#: T-$
+##%
%
$
&
$
T
DISTRIBUTION TRANSFORMER PROTECTION SYSTEM
The project deals with the design of equipment to protect the
distribution transformer from current swage, oil le"el swage, "oltage swage,
o"er temperature. /ll the abo"e parameters are sensed by the micro
controller 12c34 through the comparators. The sensors we ha"e used that
L+%, T-$%5&T#%, The main part of the project is micro controller, for
what we ha"e used micro controller means it protect the distribution
transformer automatically with any manpower and the circuit is "ery
compact. #ur project is "ery use full to $. stations, where the manpower
cannot wor! in that field.
BLOCK DIAGRAM
Power
supply
5icro
controller
)urrent
dri"e
relay
L#/+
comparator
#L
L$,$L
&ensor
,#LT/G$
L$,$L
&ensor
-$/T
L$,$L
&ensor
AUTOMATIC EONE DETECTION
This project deals with the design of an automatic control of a distant
automobile through o"er blue tooth communication. The project confines
itself in the control of the direction and the acceleration of the dc motor in
order to implement the robotic9based sur"eillance system. The protocol has
been designed on our own and the total operation of the "ehicle has been
controlled from the school 0one and hospital 0one.
.L#)6 +/G%/57
-#&PT/L ?#*$
SCHOOL EONE
$9.6$
TF4
#&)LL/T#%
%:
/5PL:$%
:&6
TF;
#&)LL/T#%
)#*T%#L
+$,
)$
%:
%$)$,9
$%
)#*T%#L
)#*T%#L
+$,
)$
%:
%$)$,9
$%
-#%*
)#*T%#L
:&6
%:
/5PL:$%
AUTOMATIC RAIN SENSING AND WIPER CONTROL
The project deals with the design of rain detection and acti"ating the
wiper according to that. &o we are in a position to find the amount of rain,
which falls in a"erage in a particular year, is of our interest. The project has
its own accuracy and has its timing control i.e. based on the different timing
delays which we ha"e implemented in the mono stable multi "ibrator of the
circuit. The wiper is acti"ated with the help of stepper motor to rotate both in
cloc!wise and anti cloc!wise directions.
BLOCK DIAGRAM
5$&-
+$)#+$% ) 333
.'??$%
)#'*T$%
T%/*&&T#% +&PL/(
P#W$%
&'PL(
AUTOMATIC THREE-PHASE STARTER USING 555
This project is an automatic three9phase starter, which wor!s
under the control of 12c34 a "ersatile micro controller. The D9
phase motor first rotates in star configuration and then it runs in
delta configuration. This method is efficient method to sa"e the
motor life and reduces the power consumption. The timing can be
controlled accurately with the help of micro controller.
BLOCK DIAGRAM
*P'T 6$(
P#W$%
&'PPL(
MC
333
)#*T/)T
#
%
)'%%$*T
+%,$
EMBEDDED CIRCUIT BREAKER FOR HEAVY LOAD
This project is a design of controller9based circuit brea!er. 'nli!e
con"entional 5).s here we in"ol"e micro controller for brea!ing the
circuit. The sensing circuit is dependent on a current transformer. When the
current exceeds a limit, the controller senses it sends a trip signal "ia port
;.<. This method of using micro controller helps to ha"e an account of how
many times the current is exceeding and it helps to judge the power
conditions better than the normally a"ailable trips. n normally a"ailable
trips we ha"e to switch #* the trip manually but here it is done
automatically.

BLOCK DIAGRAM
Power
supply
5icro
controller
)urrent
dri"e
relay
load
comparator
'n
regulated
supply
OPTICAL TACHOMETER FOR LOW RPM
The projects is deals with the design of tachometer for low power
%P5. The micro controller is the major part of the project, the micro
controller is 12c34. it has four ports. The cloc! frequency of the
controller is 4;mh0. We are counting the %P5 by opticallyG we ha"e to
!eep the L$+ and the L+% in the narrow position, the L+% is the
sensor to count the %P5 the output of the L+% is con"erted into digital
signal and it is fed to the micro controller, we are using port 4 is the in
port and port; as out port, the readings will be displayed in the se"en
segment display.
BLOCK DIAGRAM
L+%
)#5/%/T#%
P#W$%
&'PL(
5icro
controller
nport
LG-T &#'%)$
5#T#%
+$)#+$%
+&PL/(
DTMF BASED HOME AUTOMATION
The project is actually the design of telephone based home automations
system which can control the loads at home by using "arious different
frequencies for each equipment. -ere each de"ice is allocated with each
frequency. -ere circuit senses the selected switches at a remote place and
accordingly it acti"ates the high "oltage loads at different places. The
project finds its applications in controlling the industrial de"ices from a
remote place where it is dangerous to switch off or on from the near by
place.

BLOCK DIAGRAM
P#W$%
&'PPL(
#'TP'T
P#%T
*P'T
P#%T
µ )
+T5:
+$)#+$%
*P'T
L#/+
)'%%$*T
+%,$
MICRO CCONTROLLER SCR FIRING ANGLE CONTROL OF DC
MOTOR
The project deals with the design of speed controller for a +c
motor using a switching technique through 'HT. The gate pulses are
generated by the 'HT and supplied to the &)% gate. This interface of 'HT
and &)% actually protects the &)%. ,arying the "oltage applied to the field
windings may control the speed. The input supply is rectified with the help
of &)%. This type of control is basically an analog type of control. / proper
isolation has to be pro"ided to the &)%, if not it will lead to the failure of
&)%. We may go for optical isolation or gal"anic isolation. The gate pulses
are actually extracted from the power supply itself so as to ensure the
synchroni0ation.
BLOCK DIAGRAM
Power
supply
5icro
controller
&#L/T#%
%elay
&)%
?$%# )%#&&
+$T$)T#%
&T$P
+#W*
/)
&'PPL(
L#/+
AUTOMATIC :88W VOLTAGE STABILIEER
/utomatic "oltage stabili0er is a de"ice which is used to stabili0e the
output "oltage with an accuracy in the order of IJ9 4<K. When input "oltage
comes under ;<< ,, the stabili0er will boost in addition with that "oltage of
;< " using auto transformer. The output "oltage is tapped from the
transformer through the relay, relay output "olt also reduced to ;< " if the
input is abo"e ;;< ,.

BLOCK DIAGRAM
nput;D<"
ac supply
)omparator
circuit
)urrent
dri"e
relay
load
%eference
circuit
'n
regulated
supply
RADIO CONTROL SURVEILLANCE SYSTEM
This project deals with the design of an remote control of a distant
automobile through o"er blue tooth communication. The project confines
itself in the control of the direction and the acceleration of the dc motor in
order to implement the robotic9based sur"eillance system. The protocol has
been designed on our own and the total operation of the "ehicle has been
controlled from the remote place.
.L#)6 +/G%/57
$9.6$

TF4
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%:
/5PL:$%
:&6
./)6
5#T
#%
)#*T%#L
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)$
%:
%$)$,9
$%
:%#*T
5#T#%
AUTOMATIC SINGLE PHASE CHANGER
n D phase applications, if low "oltage is a"ailable in any one or Two
phases, and you want your equipment in normal "oltageG this circuit will
sol"e your problem. -owe"er, a proper rating fuse needs to be used in input
lines. This pro"ides correct "oltage in same power supply lines through
relays from the other phase where the correct "oltage is a"ailable. our
project will automatically change the phase if any one is cut off.
.L#)6 +/G%/5
&T$P
+#W*
+)
,#LT/G$
&T$P
+#W*
+)
,#LT/G$
&T$P
+#W*
+)
,#LT/G$
)#5P/%/T#%
PWM BASED LAMP CONTROL USING 89C51
This title controls the dc .'L. speed through modulation
technique called as pulse width modulation. When the width of the #* time
increase the .'L. gets more on time and hence the a"erage "oltage applied
to the dc .'L6. will increase. f the #* time is reduced then the motor
gets less a"erage "oltage. -ere "arying the applied "oltage magnitude
through PW5 "aries the speed. The gate pulses are applied through micro
controller port ;.4 and gi"en to the base of the transistor, which dri"es the
+) load.
#ften, people attempt to control +) .'L. with a "ariable resistor or
"ariable resistor connected to a transistor. While the latter approach wor!s
well, it generates heat and hence wastes power. This simple pulse width
modulation +) .'L. control eliminates these problems. t controls the
motor speed by dri"ing the motor with short pulses. These pulses "ary in
duration to change the speed of the .'L..
BLOCK DIAGRAM
P#W$%
&'PPL(
µ )
)'%%$*T
+%,$
+) .'L.
nput
!eys
SWITCHED MODE POWER SUPPLY
n this project we control the output "oltage a"ailable at the load as a
"ariable "oltage from < to 4; " with "ery good precision through the
switching soft triggers from a micro controller. The #* #:: pulses obtained
from the micro controller are obtained from the delay programs. .ased on
the "oltage requirement we may change the delay programs, so that the a +)
to +) con"erter is reali0ed using a power transistors. / sufficient isolation
has to be ensuring to protect the micro controller as well as the load.
BLOCK DIAGRAM
P#W$%
&'PL(
#'TP'T
P#%T
*P'T
P#%T
µ )
*P'T
!eys
.'L.
)'%%$*T
+%,$
ENERGY MEASUREMENT THROUGH POWER LINE CARRIER
COMMUNICATION
The project deals with the design of an equipment to read the
energy consumed in particular load through an analog energy meter and
through the power line itself. The purpose of this project is to a"oid the on
spot billing for power consumption. &o we propose a technique to measure
the same energy at a different place. The project transmits the signals. .ut
this project is restricted to one house.
BLOCK DIAGRAM
load
$nergy meter
/5PL:$%
8
)#5P/9%/T#%
%$L/(
+%,$ 8
%$L/(
)%)'T
Light sensor
P#W$%
)#'PL*G
)%)'T
P#W$%
+$9
)#'PL*G
)%)'T
+isplay
dri"er display
IR BASED FAN SPEED CONTROL
This project deals with the design of 5/*'/L room temperature
control circuit, which will "ary the speed of +c fan using an infrared control.
5ore o"er the project is based on embedded micro controller 12c34. -ere
we ma!e the fan to rotate in 3 different speeds based on the temperature
conditions a"ailable in the room. The program for this project is assembled
through asem344D software and flashed through a software easy
downloader. This project is "ery "ersatile and has a reliable operation when
compared to the con"entional method of temperature controller. The
specialty of this project is that it does not ha"e a "ery complicated method of
thryristor circuits.
BLOCK DIAGRAM
%
recei"e
r
333 ><4= ic
Power
supply
5icro
controller
)urrent
dri"e
relay regulator
fan
AUTOMATIC SINGLE-PHASE PREVENTER
The project deals with the design of automatic supply cut off
system for a three9phase system using micro controller 12c34. The
motor while rotating with three phases will not function properly
when the supply line is reduced from D phases to ; phases or one
phase. .ut it will create huge damage to motor when two phases
are not a"ailable and if the phase sequence changes. To a"oid this
situation we are in need of putting the pre"enter circuit in between
the D9phase motor and the %(. of the mains supply.
BLOCK DIAGRAM
Power
&upply
5icro
controller
%
.
(
comparator
comparator
comparator
)urrent
dri"e
%elay
Three phase
contactor
PC BASED PREPAID ENERGY MEASUREMENT
The project aims at the design of a versatile pc
ased virt!al instr!ment for the meas!rement of
energ" in the homes# C!rrentl" $e have analog
instr!ment for the meas!rement% $hich gives the
prolems li&e inacc!rac"% and more time po$er
cons!mption also# Also 'B department people sho!ld
come to individ!al ho!ses to note the reading# All the
aove said prolems are completel" eliminated from
the scenario in o!r project# The digital instr!ment $e
are designing is connected to a centrali(ed server
!sing the rf comm!nication itself and not a separate
line $hich eing the strength of o!r project#
Instantaneo!s energ" cons!mption is comm!nicated
to the micro comp!ter and the ill is prepared
according to the tariff fi)ed " the state government#
BLOCK DIAGRAM
)#*,$*T#*/L
$*$%G( 5$T$%
P'L&$
$FT%/)T#*
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LASER BASED WASHBASIN MIRROR LAMP CONTROL
The project deals with the design of laser based mirror lamp
controllers for wash basin. n this project the lamp glows when the user go
near by the mirror and it does not glow when he come away from the mirror.
This project sa"es the energy as well the user fatigue while switching on and
off the light. 5ore o"er this project can be extended in future e"en to control
the water flow of the wash basin.
.L#)6+/G%/57
comparator
LDR
Power
su
pp
ly
,oltage regulator
Laser source
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DUAL DC MOTOR SPEED CONTROL USING 89C51
The project is to control the speed of the +) motor through micro
controller programming so that the two +) motors are controlled through
one micro controller efficiently. The ad"antage is that we can ha"e the speed
"ariations through a digital control. The operation of each motor is fully
independent and we may operate in "arious modes li!e either one mode, two
mode operation depending on the requirement.
#ften, people attempt to control +) motors with a "ariable resistor or
"ariable resistor connected to a transistor. While the latter approach wor!s
well, it generates heat and hence wastes power. This simple pulse width
modulation +) motor control eliminates these problems. t controls the
motor speed by dri"ing the motor with short pulses. These pulses "ary in
duration to change the speed of the motor. The longer the pulses, the faster
the motor turns, and "ice "ersa.
BLOCK DIAGRAM
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nput
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+c motor
AUTOMATIC WATER HEATER CONTROLLER
The project deals with the design of an
automatic water heater controllerA which performs it job by
comparing the thermal heat of the water. The project can control
the heat of the water. The project has been actually done using
T-$%5&T$%.The project has its own accuracy and has its timing
control. When heat of the water is crossing the limit the
comparator what we ha"e used is switch #:: the water heater.
When heat of the water is decreasing the comparator what we ha"e
used is switch #* the water heater.
.L#)6 +/G%/5
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MICRO CONTROLLER BASED DC MOTOR SPEED CONTROL
This title controls the dc motor speed through modulation
technique called as pulse width modulation. When the width of the #* time
increase the motor gets more on time and hence the a"erage "oltage applied
to the dc motor will increase. f the #* time is reduced then the motor gets
less a"erage "oltage. -ere "arying the applied "oltage magnitude through
PW5 "aries the speed. The gate pulses are applied through micro controller
port ;.4 and gi"en to the base of the transistor, which dri"es the +) load.
#ften, people attempt to control +) motors with a "ariable resistor or
"ariable resistor connected to a transistor. While the latter approach wor!s
well, it generates heat and hence wastes power. This simple pulse width
modulation +) motor control eliminates these problems. t controls the
motor speed by dri"ing the motor with short pulses. These pulses "ary in
duration to change the speed of the motor. The longer the pulses, the faster
the motor turns, and "ice "ersa.
BLOCK DIAGRAM
P#W$%
&'PPL(
µ )
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+%,$
+c motor
nput
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EMBEDDED MOTOR PROTECTION SYSTEM
The project deals with the design of equipment to protect the motor
from "oltage swage, o"er temperature. /ll the abo"e parameters are sensed
by the micro controller 12c34 through the comparators and it transmit by
.L'$T##T- B"#/'- 3")@>)$*=D. The sensors we ha"e used that L+%,
T-$%5&T#%. The main part of the project is micro controller, for what
we ha"e used micro controller means it protect motors automatically with
any manpower and the circuit is "ery compact. #ur project is "ery use full to
many industries, where the manpower cannot wor! in that field.
BLOCK DIAGRAM
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relay
VEHICLE TRACKING SYSTEM
This project deals with the design of an remote control of a distant
automobile through o"er blue tooth communication. The project confines
itself in the control of the direction and the acceleration of the dc motor in
order to implement the robotic9based sur"eillance system. The protocol has
been designed on our own and the total operation of the "ehicle has been
controlled from the remote place.
.L#)6 +/G%/57
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TEMPERATURE BASED FAN SPEED CONTROL
The project deals with the design of an automated fan
control depend upon the temperature of room. The temperature
can be selected digitally from the control switches a"ailable at
the panel board of the project. The project has been designed
using 12c34 micro controller. The program to control all the
operations has been written in assembly language. The project
controls the temperature by fully digital means and not by
analog means. The project has its own sensiti"e to control the
fan.
BLOCK DIAGRAM
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RF BASED HOME AUTOMATION
The project is actually the design of an %: based home
automations system, which can control the loads at home by
using "arious different frequencies for each equipment. -ere
each de"ice is allocated with each frequency. -ere the circuit
senses the selected switches at a remote place and accordingly
it acti"ates the high "oltage loads at different places. The
project finds its applications in controlling the industrial
de"ices from a remote place where it is dangerous to switch off
or on from the near by place.
.L#)6 +/G%/5
TRANSMITTER
RECEIVER
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GSM BASED LOAD CONTROL AND PROTECTION SYSTEM
The project deals with the design of equipment to protect and control
the motor from "oltage swage, o"er temperature through G&5. /ll the
abo"e parameters are sensed by the micro controller 12c34 through the
comparators and it transmit by G&5. The sensors we ha"e used that L+%,
T-$%5&T#%. The main part of the project is micro controller, for what
we ha"e used micro controller means it protect motors automatically with
any manpower and the circuit is "ery compact. #ur project is "ery use full to
many industries, where the manpower cannot wor! in that field. f any one
problem will occur automatically motor is switch off and message is send to
the authori0ed person.
BLOCK DIAGRAM
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modem
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relay
IR BASED HOME AUTOMATION
The project is actually the design of an % based home
automations system, which can control the loads at home by
using "arious different frequencies for each equipment. -ere
each de"ice is allocated with each frequency. -ere the circuit
senses the selected switches at a remote place and accordingly
it acti"ates the high "oltage loads at different places. The
project finds its applications in controlling the industrial
de"ices from a remote place where it is dangerous to switch off
or on from the near by place.
.L#)6 +/G%/5
TRANSMITTER
RECEIVER
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SECURITY BASED RFID TAG AUTOMATIC DOOR OPENING SYSTEM
The project deals with the design of a security system especially meant of
a %$&T)T$+ +##%&. .ecause of the tremendous increase in the thefts
we are in a position to safeguard them through some methods. $"en the
mechanical loc! systems fail because they are easily brea!able without
ma!ing any huge noise. 5ore o"er *ow a days we need lot of security
systems in all !inds area. The security system "aries depends upon the
application Bpassword, finger and "oice etc,C &o we desire to do ta!e radio
frequency security system. The project has its own accuracy and has its
timing control i.e. based on the different timing delays which we ha"e
implemented in the mono stable multi "ibrator of the circuit. When the %:
recei"ed the door will automatically open using the micro controller.
BLOCKDIAGRAM:
SECURITY BASED RFID TAG AUTOMATIC DOOR OPENING
SYSTEM
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PC BASED FREFUENCY MEASUREMENT SYSTEM
The project is actually the design of an P) based
frequency measurement equipment. -ere the circuit senses the
rectified out is gi"en to the comparator, the comparator is act
as a analog to digital con"erter, the digital output is gi"en to
the P) through parallel port. The program which we ha"e used
@)A language. This "ery useful in industries.
.L#)6 +/G%/5
Parallel
P#%T
P)
P#W$%
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&tep down rectified /)
"oltage
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con"erter
RFID BASED AUTOMATIC TRAIN STATION DISPLAY
This project deals with the design of an automatic control of a distant
automobile through o"er blue tooth communication. The project confines
itself in the control of the direction and the acceleration of the dc motor in
order to implement the robotic9based sur"eillance system. The protocol has
been designed on our own and the total operation of the "ehicle has been
controlled from the school 0one and hospital 0one.
.L#)6 +/G%/57
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STATION NO.;
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