pn532 (i2c) not working with sd (spi)
Posted: Thu Apr 20, 2023 9:18 pm
I have a pn532(i2c, Adafruit libraries) and it works, but if i add the sd (spi, sdfat library, this sd make me al lot of problem with i2c 
), itdoesn't work anymore. If i inizialize first the pn532 and next the sd, no errors, but doesn't read rfid/nfc, if i inizialize first sd and then the pn532, the begin of pn532 won't start. In both cases the sd works
), itdoesn't work anymore. If i inizialize first the pn532 and next the sd, no errors, but doesn't read rfid/nfc, if i inizialize first sd and then the pn532, the begin of pn532 won't start. In both cases the sd works