Here you can see the tutorial: LCD interfacing with 8051 microcontrollerĭriver Section: This section has a motor driver L293D for opening gate and a buzzer with a BC547 NPN transistor for indications. Here by using 8051 we are receiving RFID data and sending status or messages to LCD.ĭisplay Section: 6x2 LCD is used in this project for displaying messages on it. Ĭontrol Section: 8051 microcontroller is used for controlling the complete process of this RFID based security system. Keypad: Here we have used a 4x4 matrix keypad for entering the password to the system. This RFID is working at baud rate of 9600 bps. RFID tag which we have used here has 12 digit character code or serial number. When we put RFID tag near the RFID reader it reads tag data serially. Reader Section: This section contains a RFID, which is an electronics device which has two parts - one is RFID Reader and other is RFID tag or Card. Working of the entire system and role of each section can be understood throgh the below block diagram. We can divide the complete security system into various sections - Reader section, Keypad, Control section, Driver section and Display section. Here we will check the RFID tag, along with a password associated with the tag, to secure the system. RFID Tecnology (Radio Frequency Identification and Detection) is commonly used in schools, colleges, office and stations for various purposes to automatically authenticate people with valid RFID tags.

This project is implemented by using 8051 microcontroller. In this project, we are going to develop an RFID and keypad based Security system.

Rfid reader proteus library