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PN532 NFC Antenna detecting function

Question asked by Minkoo Cho on Apr 16, 2017

Hello,

 

I split the circuit between antenna and antenna matching circuit.

I wonder if the chip has function to know whether it has an antenna(shorted) or not(open)

 

here is similar circuit but has the antenna shorted all the time.

https://learn.adafruit.com/adafruit-pn532-rfid-nfc/overview 

 

Thanks in advance

Minkoo Cho

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