final [compatibility mode]
TRANSCRIPT
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Supervised By: En rAbdulRafa Khatri
Wahab uddin Nazar (GL) 06ES56
Sami Illahi AGL 06ES50
Supervised By:Final Year Poject/Thesis Group
Wasim Abbas 06ES51
Sharyar Jamali 06ES11
Latif gul 06ES20
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Controllingthecomputerremotelyw y
Almosteverybodytodayisusedtooperatingaremotecon ro .
TV
Airconditioner
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Continue
Thissmallessentialdevicecalledremotecontrolis
notsocommoninthecomputerworld
Eachdaythecomputerisusedmoreandmoreasa
, , , ,
photographs
includedwiththeappliancesthecomputeris
emulating?
Thepurpose
of
this
project
is
to
construct
avery
differentexistingsolutionssoastocontrolthe
.
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Ob ectivesand
Aims
launchanapplication,volumecontrol,stop,
play pausetypeofdifferentoperationsusingTVremote
fromthedistance.
ThisprojectcanbeextendedtocontrolPC asaremote
mouse
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Methodolo : Option1:AddanIrDAporttothecomputer
Option2:Transferdatabetweenanelectronic
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ThisprojectisanimplementationofRC5remote
receptiononan8051microcontroller.
T ereceive co eis eco e an senttot ePC
remotesoftwarewritteninVisualBasic.
pressed.
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Hardwareand
software
to
be
used
HARDWARE:
AT89C2051MICROCONTROLLER
MAX232
TSOP1738IR
RECEIVER
TVREMOTE
11.0592MHzCRYSTAL
PCCOM
PORT
CONNECTOR
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VisualBasic
6.0Thirdgenerationeventdrivenprogramminglanguageand
integrateddevelopmentenvironment(IDE)fromMicrosoftforitsCOMprogramm ngmo e .VB sa socons ere are at ve yeasytolearnanduseprogramminglanguage,becauseofitsgraphical
development
features
and
BASIC
heritage.
The Vision IDE from Keil combines project management, makefacilities, source code editing, program debugging, and completesimulation in one powerful environment. The Vision development
platform is easyto
use and it helps you quickly create embedded
programs that work. The Vision editor and debugger are integratedin a single application that provides a seamless embedded project
.
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Testin
Technolo iesused:
Checking PortusinghyperterminalofPC
Infraredsensortestorcircuit
RC5
decoder
implementing
on
8051
microcontroller
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Whatcontribution
would
the
ro ect
make?:
While using media files, we can control its different
operations from the distance.
This project makes us realize that there is a whole new
world lives on printed circuit boardsand probably more efficient.
It brings us one more step closer to the future world and
u s our con ence.
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Microcontroller AT8 C20 1:
Features:
2KBytes
of
Reprogrammable
Flash
Memory
Endurance:10,000Write/EraseCycles
2.7Vto6VOperatingRange
FullyStaticOperation:0Hzto24MHz
Twolevel
Program
Memory
Lock
15ProgrammableI/OLines
Two16bitTimer/Counters
ProgrammableSerial
UART
Channel
DirectLEDDriveOutputs
Onchi Analo Com arator
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MAX232Line
Driver
Microcontroller
8051
works
on
TTL
voltage
levels
which
cannotbeusedtocommunicateoverRS232CMOSlevel
levelconverterisneededwhichcanconvertTTLto
RS232andRS232toTTLvoltagelevels.
MAX232.
RS232 volta e levels 10V and +10V from 5V ower
supply
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Features
OperatesFromaSingle
5VPowerSupplyWith
1.0_F
Charge
Pump
OperatesUpTo120Kit/s
Receivers
30VInputLevels
LowSupply
Current
...8
mATypical
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Standardserial
interface
of
MAX232
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IRsensor
TSOP1738
Receivedmodulatedinfraredsignalandconvertsn oe ec r ca s gna .
Applications:
.
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Photodetectorandpreamplifiercircuitintheonepackage.
.
5V
output
(active
at
level
0).
38kHzintegratedoscillator.
.
Highlevelofimmunitytoambientlight.
Improved
shielding
against
electrical
field
interference. .
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Technical s ecification:
Supply:5V
Powerconsumption:0.4to1.0mA(low)
Min.Ee irradiation:0.35mW/m2typ.
ng eo e ec on:
Dimensionsofthecasing(mm)12.5x10xThickness5.8
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TVremote
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Introductionto
RC5
rotocol
Mostaudioandvideosystemsareequippedwithaninfrared
remote
control.
A
common
used
standard
code
TheRC
5code
from
Philips
is
possibly
the
most
used
protoco y o y sts,w eava a tyo c eapremotecontrols.
Theprotocol
is
well
defined
for
different
device
types
ensuringcompatibilitywithyourwholeentertainmentsys em.
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Features
5bitaddressand6bitcommandlength(7
commandbitsforRC5X)
Biphasecoding(akaManchestercoding)
Carrier requencyo 36 Hz
Constantbittimeof1.778ms(64cyclesof36kHz)
eren comman sw c are v e
32addresseseachof64commands.
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cont
Thetransmittedcodeisadatawordwhichconsistsof
14bits
2startbitsfortheautomaticgaincontrolinthe
.
1togglebit(changeeverytimewhenanew
5addressbitsforthesystemaddress
6instructionbitsforthe ressedke
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PCCOMPORTCONNECTOR:
OldPC'sused25pinconnectorsbutonlyabout9p nswereac ua yuse so o aymos connec ors
areonly
9pin.
Eachofthe9pinsusuallyconnectstoawire.Besidesthetwowiresusedfortransmittingandreceivingdata.
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CONT..
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Cont.
PIN DIRCTIONOFSIGNAL1. CarrierDetect CD fromDCE Incomin si nalfroma
modem
2. ReceivedData
(RD)
Incoming
Data
from
aDCE
3. TransmittedData(TD)OutgoingDatatoaDCE
4. DataTerminalReady(DTR)Outgoinghandshakingsignal
5. SignalGroundCommonreferencevoltage
6. DataSet
Ready
(DSR)
Incoming
handshaking
signal
7. RequestToSend(RTS)Outgoingflowcontrolsignal
8. ClearToSend(CTS)Incomingflowcontrolsignal
9. RingIndicator(RI)(fromDCE)Incomingsignalfromamodem
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PCRemotecontrolsoftwarePCRemoteControlisaversatilesoftwarethatallowsyouto
contro t ecomputer nas mp eway,asyou ow t a or
DVDplayer.
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Availableactions
AllNumericalKeys
ArithmeticKeys
Enter
Windowkeys
Calculator
Notepad
Escape
Help
Refresh
CDdrivecontrolControl
panel
Computerlog
off
Capslock
Tab
Backspace
Reboot/shutdown
Volumecontrol
5Userdefined
DeleteLeft/Right
Up/downarrows
programs.
Pageup/down
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ontro o t ecomputer ur ngmultimediareproduction.
Windowsmediaplayer
Presentations
MicrosoftPower
point
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F r h r
im l m n i n
in
f r
Controlhomeappliances&devicessuchas
Roomlights
Fans
Doorlockandunlock
Washingmachines
Otheruses
Utilityconsumptionremotemeterreading
Contact
less
apparatus
control
Telemetrydatatransmission
Carsecurit s stems.
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