PyRFIDGeek is a python package for reading and writing cards following the Danish RFID data model for libraries, using serial communication to RFIDGeek boards (tested with RFIDUARTUSB7970) and possibly other boards based on the TI TRF7970A chip, such as TI's Evaluation Module (EVM).

Reading example:

import yaml
from rfidgeek import PyRFIDGeek
config = yaml.load(open('config.yml', 'r'))
reader = PyRFIDGeek(config)
for uid in reader.inventory(single_slot=False):
    item = reader.read_danish_model_tag(uid)
    print
    print ' # Item id: %s (part %d of %d)' % (item['id'], item['partno'], item['nparts'])
    print '   Country: %s, library: %s' % (item['country'], item['library'])
    if item['crc_ok']:
        print '   CRC check successful'
    else:
        print '   CRC check failed'
    print
reader.close()

Writing example:

import yaml
from rfidgeek import PyRFIDGeek

config = yaml.load(open('config.yml', 'r'))
rfid = PyRFIDGeek(config)
uids = rfid.inventory()

for partno, uid in enumerate(uids):
    item = {
        'partno': partno,
        'nparts': len(uids),
        'country': 'NO',
        'library': '1030310',   # ISIL
        'id': '75K110086'       # Document id
    }
    if rfid.write_danish_model_tag(uid, item):
        print 'Wrote tag %d of %d' % (partno, len(uids))
    else:
        print 'Write failed, please try again'

rfid.close()

Installation for the websocket example:

• Install the websocket python package: pip install websocket-client