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.
Wifi rfid door lock.
Its main purpose is to control the access of an electric lock through wireless with the.
I hope you guys enjoy learning this project.
Each key card contains data encoded on a machine readable rfid chip and plays an integral part in a computerized security system.
Many businesses use radio frequency identification rfid door locks.
Wireless rfid door lock using nodemcu.
Here we will make a smart rfid door lock by using arduino and ultrasonic sensor.
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.
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Arduino codes and library.