password based door locking system using 8051
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This document describes a password-based door locking system using an 8051 microcontroller. The system includes a keypad to enter a password, which is checked against a stored password. If the passwords match, the gate opens. Otherwise, an alarm is activated. The hardware requirements include an 8051 microcontroller, keypad, LCD, relay, motor, resistors, capacitors, crystal oscillator, voltage regulator, and momentary switch. The software includes Keil compiler, Flash Magic, and Proteus. A circuit diagram is provided. Advantages are security, low power consumption, and simple design using common components. Applications include home security and controlling access to secure areas.
password based door locking system using 8051
- 1. PASSWORD BASED DOOR LOCKING SYSTEM USING 8051 MICROCONTROLLER PRESENTED BY…….. PRASHANT MANGLESHWAR MRADUL NARENDRA EC-B 4th YEAR MENTOR: SHIV SIR
- 2. CONTENTS INTRODUCTION HARDWARE REQUIRED SOFTWARE REQUIRED CIRCUIT DIAGRAM STEPPER MOTOR CRYSTAL OSCILLATOR VOLTAGE REGULATOR MOMENTARY SWITCH LCD ADVANTAGES APPLICATIONS
- 3. INTRODUCTION A microcontroller based Door locker is an acecess control system that allows only authorized persons to access a restricted area. The system has a Keypad by which the password can be entered through it. When the entered password equals with the password stored in the memory then the gate gets open. If we entered a wrong password then the Alarm is switched on.
- 4. HARDWARE REQUIREMENTS: AT89C51 CONTROLLER 8051 PROGRAMMING BOARD PROGRAMMING CABLE DC BATTERY OR 12V,1A ADAPTOR 4×3 MATRIX KEYPAD 16×2 LCD 5V RELAY DC MOTOR BC 547 TRANSISTOR 10K, 330 Ω RESISTOR (1/4 WATT) 10UF ELECTROLYTIC CAPACITOR 33PF CAPACITORS – 2 12MHZ CRYSTAL POT 10K (1/4 WATT) – 1 CONNECTING WIRES
- 5. Software Requirements: Keil compiler Flash magic Proteus
- 7. STEPPER MOTOR A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor.
- 8. CRYSTAL OSCILLATOR A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency.
- 9. VOLTAGE REGULATOR A voltage regulator is designed to automatically maintain a constant voltage level. Depending on the design, it may be used to regulate one or more AC or DC voltages.
- 10. MOMENTARY SWITCH In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The mechanism of a switch may be operated directly by a human operator to control a circuit.
- 11. LCD A liquid-crystal display (LCD) is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals. Liquid crystals do not emit light directly.
- 12. Advantages: This project provides security Power consumption is less Used commonly available components Project is simple and easy
- 13. Applications: This simple circuit can be used at residential places to ensure better safety. It can be used at organizations to ensure authorized access to highly secured places. With a slight modification this Project can be used to control the switching of loads through password
- 14. Thank You