1#!/usr/bin/python 2# Author: Zion Orent <zorent@ics.com> 3# Copyright (c) 2015 Intel Corporation. 4# 5# Permission is hereby granted, free of charge, to any person obtaining 6# a copy of this software and associated documentation files (the 7# "Software"), to deal in the Software without restriction, including 8# without limitation the rights to use, copy, modify, merge, publish, 9# distribute, sublicense, and/or sell copies of the Software, and to 10# permit persons to whom the Software is furnished to do so, subject to 11# the following conditions: 12# 13# The above copyright notice and this permission notice shall be 14# included in all copies or substantial portions of the Software. 15# 16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 20# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 21# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 22# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 24import time, sys, signal, atexit 25import pyupm_pn532 as upmPn532 26 27# Instantiate an PN532 on I2C bus 0 (default) using gpio 3 for the 28# IRQ, and gpio 2 for the reset pin. 29myNFC = upmPn532.PN532(3, 2) 30 31## Exit handlers ## 32# This stops python from printing a stacktrace when you hit control-C 33def SIGINTHandler(signum, frame): 34 raise SystemExit 35 36# This lets you run code on exit 37def exitHandler(): 38 print "Exiting" 39 sys.exit(0) 40 41# Register exit handlers 42atexit.register(exitHandler) 43signal.signal(signal.SIGINT, SIGINTHandler) 44 45 46if (not myNFC.init()): 47 print "init() failed" 48 sys.exit(0) 49 50vers = myNFC.getFirmwareVersion() 51 52if (vers): 53 print "Got firmware version: %08x" % vers 54else: 55 print "Could not identify PN532" 56 sys.exit(0) 57 58# Now scan and identify any cards that come in range (1 for now) 59 60# Retry forever 61myNFC.setPassiveActivationRetries(0xff) 62 63myNFC.SAMConfig() 64 65uidSize = upmPn532.uint8Array(0) 66uid = upmPn532.uint8Array(7) 67 68 69while (1): 70 for i in range(7): 71 uid.__setitem__(i, 0) 72 if (myNFC.readPassiveTargetID(upmPn532.PN532.BAUD_MIFARE_ISO14443A, 73 uid, uidSize, 2000)): 74 # found a card 75 print "Found a card: UID len", uidSize.__getitem__(0) 76 print "UID: ", 77 for i in range(uidSize.__getitem__(0)): 78 print "%02x" % uid.__getitem__(i), 79 print 80 print "SAK: %02x" % myNFC.getSAK() 81 print "ATQA: %04x" % myNFC.getATQA() 82 print 83 time.sleep(1) 84 else: 85 print "Waiting for a card...\n" 86