SECURITY BASED ON STEPPER MOTOR CONTROL USING MICRO CONTROLLER
AIM:
The main aim of this project is to protect the stepper motor by providing password.
PURPOSE:
The purpose of this project is to protect the stepper motor by providing password. BLOCK DIAGRAM:-
Power Supply:
DESCRIPTION:
Now-a-days technology has developed to a large extend. At the same time the need for systems with automation and high security are preferred. In this project we are providing the stepper motor security by providing password. Here, we have keypad to enter the password. When, we enter correct password then only motor is starts otherwise it won’t starts. This paper presents the micro stepping technique which overcomes the problem of instability and at the same time provides high accuracy for micro stepping applications.
In this project the microcontroller which forms the heart of the project, plays an important role in establishing communication between the keypad and the stepper motor. In this system a unipolar stepper motor is used (which is used widely in all kinds of floppy drives and CD drives) the use of single microcontroller to control the motor.
Commands executed by the code in this application include: single step the motor rotates in a clockwise or counterclockwise direction (i. e. rotate the rotor through a certain number of degrees) when the corresponding key is pressed from the keypad. This project consists of a stepper motor and a driver IC ULN 2003 that will drive the motor, However the Microcontroller lacks sufficient current to drive the stepper motor windings, so driver ULN2003 (U3) is used to energize the stator, based on the instructions typed by the user in the keypad the stepper motor will rotate. If we enter the correct password from keypad then the motor will rotate. if we enter the wrong password.the motor will not be on.
This project uses regulated 5V, 500Ma power supply, 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/12V step down transformer.
HARDWARE COMPONENTS:
· Micro controller
· Power supply
· LCD
· Keypad
· Motor driver
· Stepper motor
SOFTWARE TOOLS:
· Keil u-Vision
· Embedded ‘C’
· Express PCB
APPLICATIONS:
1. Used in Industrial applications.
RESULT:
Hence, by using this project is we are protecting the stepper motor by providing password.
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