MFRC522 RFID Reader Interfaced With NodeMCU

Hello Makers,I'm back with another Instructable.Did you ever wonder what is an RFID or how does it work?If you have noticed in an office before, you would be probably aware of those RFID cards or Tags that would unlock specific doors depending on your access.Well let’s make a simple NodeMCU RFID rea...
By: TheCircuit

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