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Published 20 hours ago • verified publisher icon exploitagency

Circuit to detect RFID card

Open xfce opened this issue 5 years ago • 0 comments

Hi If there is a simple circuit to detect a RFID card? I want to design a product, just use a MCU's gpio to generate 125kHz wave signal , then add some passive components , if a card put close to the circuit, it can give some signal to the MCU.

xfce avatar Aug 14 '19 14:08 xfce