CODEWITHSUNDEEP
pythonmacosnfc
lightbord
lightbord

Reputation: 173

nfcpy - detect a USB-serial connected PN532

I am trying to use a pn532 board connected using an Adafruit FTDI Friend to my MacBook Pro. It pops up in /dev as "tty.usbserial-XXXXXXXX" (where the Xs are the serial number). I have tried things such as "tagtool.py --device=tty:usbserial-XXXXXXXX:pn532" but no success. I also tried that same connection string straight in my code.

Nfcpy doesn't seem to be detecting the PN532, but it detects my ACR122U over USB just fine. I have already confirmed its not the PN532 board, as libnfc on my Mac detects it, and it works fine on my Raspberry Pi.

My code to connect:

with nfc.ContactlessFrontend('tty:usbserial-XXXXXXXX:pn532') as clf:
 tag = clf.connect(rdwr=rdwr_options)
 if tag == False:
     raise KeyboardInterrupt

Upvotes: 2

Views: 1465

Answers (1)

Stephen Tiedemann
Stephen Tiedemann

Reputation: 621

With nfcpy 0.13.0 (and earlier versions) it was not possible to use serial ports on Mac OS X. The /dev/ naming scheme for OS-X has been added in nfcpy 0.13.1 and those ports are now automatically discovered or specifically selectable with the device path of nfc.ContactlessFrontend.open().

Upvotes: 1

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