This document describes a Bluetooth-based door opening and closing system. The system uses an Android app to send open and close signals via Bluetooth to an Arduino Uno, which controls a DC gear motor via an L293D motor driver. When an 'F' is received, the door opens, and when an 'R' is received, the door closes, providing remote door control from a smartphone for improved home security. The system aims to increase safety and security compared to traditional keys, while decreasing costs.

1. BLUETOOTH BASED DOOR
OPEN/CLOSE

2. Vaageswari college of Engineering, karminagar
(Approved by AICTE &Affiliated to JNTUH)
DEPARTMENT OF ELECTRONICS &COMMUNICATION
ENGINEERING
Mini project seminar
on
BLUETOOTH BASED DOOR OPENING OR CLOSING
presented By
CH.PAVANI 20S45A0415
M.NAVEEN 20S45A0441
R.ANIL 20S45A0462
M.CHANDANA 20S45A0444
under the Guidance of
MR .P.AJAY KUMAR
Assistant professor

3. CONTENTS-
 EXISTING SYSTEM
 PROPOSED SYSTEM
 ABSTRACT
 BLOCK DIAGRAM
 COMPONENTS
 ADVANTAGES
 APPLICATIONS
 CONCLUSION

4. Existing System-
Before there is no safety system for home applications
and anybody can use the home equipment.

5. Proposed System-
 In this project, we are controlling the door lock in the
Bluetooth android application.
 Form the Android application we are sending the information
to open and close the door lock. When the data was received
for the android app the Arduino Uno has transferred the
information to the l293d driver that the driver controls the dc
gear motor. When we pass the ‘F’ character door lock will
open. if we pass the ‘R ‘ character door lock will close. This
method is called a Bluetooth smart door lock system.

6. Abstract-
Safety and security is the major concern for all the people in the current
situation of the world. Android based remote door open and close system is
highly protective and Bluetooth is the main component in this project. The
aim here is to develop a system which is advanced and finding solution to the
problems presenting the existing system along with decreasing the cost. This
works on the preloaded password concept, it increases the security level to
prevent an unauthorized unlocking done by the attackers.

7. BLOCK DIAGRAM-
A
T
8
9
S
5
2
RPS
Bluetooth
Module
L293D
GEAR
MOTOR
ANDROID
PHONE BUZZER

8. COMPONENTS-
 MICRO-CONTROLLER(AT89S52)
 RPS (regulated power supply )
 L293D(Motor Driver)
 GEAR MOTOR
 BUZZER
 BLUETOOTH
 ANDROID PHONE

9. ADVANTAGES-
 Highly secured
 Easy to lock and unlock using smart phone
 Gives an indication for unauthorized entry
 Totally cost efficient
 We can set password as per our wish
 No need to carry keys

10. APPLICATIONS-
Banks(lockers)
In offices
Gold shops
Home Appliances