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Adafruit-PN532
Arduino library for SPI and I2C access to the PN532 RFID/Near Field Communication chip
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I'm using an esp32 and a pn532 nfc module to access control. I'm testing the setup using the readMifareClassicIrq.ino example sketch from the adafruit pn532 library. The nfc card is being detected properly. But I encounter this weird issue where if I leave the tag on top of the reader for too long the program stops detecting the card. To resume the program i have to power off and power on the whole circuit.
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