Smart Attendance System

this is a Smart attendance system it uses esp 32 microcontroller board,display for esp 32,buzzer and rfid card and reader.the esp 32 contains a list of students or employs or people using the cards uid which is linked to their name and then is that card is scanned the display will say present if the card details are present in the database is it is not present it will project on display that the card is not recognised and at last when the day is over owner can see the present,absent log on his mobile using esp 32 web server