RFID DOOR LOCK USING RC522, 12 V SOLENOID LOCK & ARDUINO (MULTIPLE CARD ACCESS WITHOUT MASTER CARD)

In this project I have discussed in detail about the working and connection of the circuit and also have given a tutorial on how to give access to more than one RFID card without the master card, so don’t forget to watch till the end.

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TO DOWNLOAD RC522 LIBRARY
OPEN ARDUINO IDE SOFTWARE
Go to sketch –include library-manage libraries
Type mfrcc522 and click enter – after the library appears click install.

TO ACCESS MORE THAN ONE CARD
If else statement uses only one condition hence by going with that condition we will be able to give access to only one card, here I have used else if statement- this is used when we have multiple conditions to be checked within a program. Else if statement helped me to give access to more than one RFID card.
If you want to give access to only one card then stick with if else statement itself and delete the else if statement which I have copied in the video.