Many businesses use radio frequency identification rfid door locks.
Wifi rfid door lock.
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When the card comes within a few feet of the reader s antenna the rfid chip transmits its data identifying the user to a security computer.
Once connected via some type of communication technology wi fi bluetooth zigbee z wave a smart lock can connect either to your smart phone smart home hub or your internet router to allow you to access your door in new ways.
Arduino codes and library.
A wide variety of wifi rfid door lock options are available to you such as steel.
Here we will make a smart rfid door lock by using arduino and ultrasonic sensor.
Smart locks provide you with another layer of control and visibility to your home.
Wireless rfid door lock using nodemcu.
Main function this project was build as part of a network communications class at universidade do algarve in collaboration with my colleague luís santos.