7/23/2019 Electronic Code Lock

1/22

MICROPROCESSOR & MICROCONTROLLER

DIGITAL CODE LOCK

7/23/2019 Electronic Code Lock

2/22

INTRODUCTION

7/23/2019 Electronic Code Lock

3/22

Digital Code Lock using PIC16F627 is a basic control system

with an ability that allows the rightful user to deloy latformto any roerty that re!uire simle assword rotection"

#his code can be changed by the user" #his circuit iseminently suitable as a digital code lock"

Digital code lock is a tye of lock in which a se!uencenumbers is used to oen the lock"

#his tye of lock use numerical code for authentication wherethe correct code must be entered in order for the lock to

deacti$ate"

#he lock can be use with an outdoor gate or a normal door"#he functionality of this lock imlemented in software"

7/23/2019 Electronic Code Lock

4/22

%hen the correct code is entered it will oen the

door" #he signi&cant of this ro'ect is &rsteliminating the need for a key"

%hen there is no key( it will allow each erson wholi$es at a residence to enter home without a key"

#he lost and forgotten keys are roblems of theast"

)ence using the digital code lock it will reduce the

risk and liability of keys falling into wrong hands asa result being stolen or dulicate"

#he digital code lock( changing access code is morecost e*ecti$e then the rocess of changing all

keyed lock"

7/23/2019 Electronic Code Lock

5/22

PROBLEMSTATEMENT

7/23/2019 Electronic Code Lock

6/22

#here are great $arieties ofdigital code locks" +enerally

seaking( they can beclassi&ed into scores of tye(

such as electronic lock(&ngerrint lock( card lock

biological lock( etc"

#his kind of lock cana$oiding the roblems

caused by the coying ofkeys"

It is because the keys eolecarry ha$e become burden

most of the time( but bycontrast eole need only toremember a set of codes forelectronics locks and don,tha$e to carry any key( thus

freeing themsel$es from

worries"

-n the remise that it,s safetyis high( it,s another featurewithout key is getting moreand more fa$our of eole"

.mong them the mostractical and the most

oulari/ed one come todigital code lock"

7/23/2019 Electronic Code Lock

7/22

OBJECTIVES

7/23/2019 Electronic Code Lock

8/22

#heob'ecti$es

of ourro'ect arelisted asabo$e0

#o a$oid anycrimes

eseciallystealing

acti$ities"

#o hel usersand gi$e

them fa$ourto go

anywhere"#o design akeyless door

entry byusing

electronicdigital lock

code"

7/23/2019 Electronic Code Lock

9/22

SCOPE

OF

PROJECT

7/23/2019 Electronic Code Lock

10/22

Pro'ects do not needcomle and not too

short according to thestudy and it shouldrelate to the study

basic idea andoeration of Digital

Code Lock"

#he ro'ect identi&es thesuitable tye of PIC

microcontroller for thero'ect to de$eloed

interfacing link betweenhardware circuit and

software rogramming"

#he ro'ect dislayedthe code and signal(when success LCD

screen dislay codeacceted,"

#he ro'ect roducedmust in$ol$e the use of

comonents andcircuits ha$e been

studied andunderstood"

7/23/2019 Electronic Code Lock

11/22

PROJECTIMPLEMENTATION

7/23/2019 Electronic Code Lock

12/22

Circuit Design and Drawing

- Research the circuit

- Stud the c!"#!nent and "ateria$

- Si"u$ate the circuit

- C!nstruct the circuit

7/23/2019 Electronic Code Lock

13/22

Pr!gra""ing the PIC

- Se$ect the $anguage t! use %!r"icr!c!ntr!$$er

- rite the #r!gra" c!de

- De'ug and chec( the err!r

- C!"#i$e the c!de

7/23/2019 Electronic Code Lock

14/22

)!ard C!nstructi!n- Drawing the circuit *Pr!teus S!%tware+

7/23/2019 Electronic Code Lock

15/22

- iring circuit *#r!t!'!ard+

7/23/2019 Electronic Code Lock

16/22

BLOCK DIAGRAM

E$ectr!nic C!de L!c( has '!th hardware and

s!%tware #arts, igure 'e$!w sh!ws '$!c(

diagra" !% the #r!.ect/

7/23/2019 Electronic Code Lock

17/22

FLOW CHART

7/23/2019 Electronic Code Lock

18/22

CONCLUSION

7/23/2019 Electronic Code Lock

19/22

%hen we comleted thisro'ect( we had learned

and understand the

rocess of constructingthe Digital Code

Lock which containedhardware and softwarede$eloment" %e alsoknow and understandthe microcontroller PICand how to imlement

it on my ro'ect"

Designing code lock$ery interesting for us

where we can getin$ol$e in

rogramming

en$ironment seriously"

-ur digital code lockerformed as eected"

%e were able toimlement all the

functions seci&ed in ourroosal"

#he biggest hurdle wehad to o$ercome with

this ro'ect wasinterfacing the

microcontroller with thehardware comonents"

%e feel that this digitalcode lock is $ery

marketable because itis easy to use(comarati$ely

ineensi$e due to low

ower consumtionand highly reliable"

#his digital code lock istherefore articularlyuseful in alicationssuch as hotel room

door locks( residentialhousing and e$en

o3ce buildings"

7/23/2019 Electronic Code Lock

20/22

RECOMMENDATION

7/23/2019 Electronic Code Lock

21/22

#here are fewsuggestionsaear aftercomleting

se$eral stages ofthis ro'ect

based on someroblems that

we &nd0

Digital code lock isuseful

in society" #herefore(it should be

eanded so that thecommunity can

use where$er theyare as well as usinga code lock on

the $ehicle or thelike"

Digital code lock mayneed to limit the

numberof assword entry

attemts to reducethe risk for broken5

in assword"

For the sake of thefuture( digital code

lock should be addedwith siren when ha$ea burglary assword"

7/23/2019 Electronic Code Lock

22/22

REFERENCES

012 Ti" i$"shurst3 Designing E"'edded Sste"s with PICMicr!c!ntr!$$ers3 4nded, 5nited Kingd!" 1667,

0429ar#rit Singh Sandhu3 Ma(ing PIC Micr!c!ntr!$$er Instru"ents &

C!ntr!$$ers3 New :!r(3 167;,

0>6,

0?2 M(e Pred(!3 Pr!gra""ing and Cust!"i@ing the PIC Micr!c!ntr!$$er3

>,

02 Di Basi!3 i$"shurst3 I'rahi"3 M!rt!n3 )ates3 B, S"ith3 D,, S"ith3 and

9e$$e'uc(3 PIC Micr!c!ntr!$$ers Kn!w It A$$3 5nited Kingd!"3 167;,