python nfcpyでNFCタグを読む

Posted 2021-05-09

import nfc
import binascii
from datetime import datetime

def startup(targets):
    print 'waiting for NFC tag ...'
    return targets

def connected(tag):
    id = binascii.hexlify(tag.identifier)
    date = datetime.now().strftime("%Y/%m/%d %H:%M:%S")
    print("|%s| %s" % (date, id))
    return id
    
def released(tag):
    print("released")

clf = nfc.ContactlessFrontend('usb')
if clf:
    while clf.connect(rdwr={
        'on-startup': startup,
        'on-connect': connected,
        'on-release': released,
    }):
      pass