def setup():
global nfc
global config
global tags
# test for settings.ini
config = parseConfig('settings.ini')
if (config == []):
log(message=
'Error missing or empty settings.ini - see settings.ini.example')
sys.exit(1)
# test for mpc
mpc_result = call(['mpc', 'status'])
if (mpc_result != 0):
log(message=
'Error missing mpc command - check if volumio is setup correctly on the device'
)
sys.exit(1)
# update nfc code list
if refresh_list():
log(message='Updated local tag list from %s' %
config['readnfc']['tagurl'])
# test for nfc code list
tags = read_cards()
if tags == False:
log('Error no tags from local tag file read')
sys.exit(1)
# test for nfc reader
log('Initialize i2c...')
# pn532 = Pn532_i2c()
PN532_I2C = Pn532I2c(1)
# log('config')
# pn532.SAMconfigure()
log('Initialize NFC reader...')
nfc = Pn532(PN532_I2C)
# log('refresh list')
log('Get NFC reader data...')
nfc.begin()
versiondata = nfc.getFirmwareVersion()
if not versiondata:
log("Didn't find PN53x board: " + str(versiondata))
raise RuntimeError("Didn't find PN53x board") # halt
log('Set NFC reader configuration...')
nfc.setPassiveActivationRetries(0xFF)
nfc.SAMConfig()
def pn532uid():
PN532_I2C = Pn532I2c(1)
nfc = Pn532(PN532_I2C)
nfc.begin()
versiondata = nfc.getFirmwareVersion()
if (not versiondata):
print("Didn't find PN53x board")
raise RuntimeError("Didn't find PN53x board") # halt
# Got ok data, print it out!
print("Found chip PN5 {:#x} Firmware ver. {:d}.{:d}".format((versiondata >> 24) & 0xFF, (versiondata >> 16) & 0xFF,
(versiondata >> 8) & 0xFF))
# configure board to read RFID tags
# nfc.SAMConfig()
success, uid = nfc.readPassiveTargetID(pn532.PN532_MIFARE_ISO14443A_106KBPS)
res = format(binascii.hexlify(uid))
return res
from pn532pi import Pn532Hsu
# Set the desired interface to True
SPI = False
I2C = False
HSU = True
if SPI:
PN532_SPI = Pn532Spi(Pn532Spi.SS0_GPIO8)
nfc = Pn532(PN532_SPI)
elif HSU:
PN532_HSU = Pn532Hsu(0)
nfc = Pn532(PN532_HSU)
elif I2C:
PN532_I2C = Pn532I2c(1)
nfc = Pn532(PN532_I2C)
_prevIDm = bytearray(b'\x00' * 8)
_prevTime = 0
def millis():
return int(round(time.time() * 1000))
def setup():
print("NTAG21x R/W")
print("-------Looking for pn532--------")
nfc.begin()
def __init__(self):
self.PN532_I2C = Pn532I2c(0)
self.nfc = Pn532(self.PN532_I2C)
self.setup()
SPI = False
I2C = False
HSU = True
if SPI:
PN532_SPI = Pn532Spi(Pn532Spi.SS0_GPIO8)
nfc = Pn532(PN532_SPI)
# When the number after #elif set as 1, it will be switch to HSU Mode
elif HSU:
PN532_HSU = Pn532Hsu(Pn532Hsu.RPI_MINI_UART)
nfc = Pn532(PN532_HSU)
# When the number after #if & #elif set as 0, it will be switch to I2C Mode
elif I2C:
PN532_I2C = Pn532I2c(Pn532I2c.RPI_BUS1)
nfc = Pn532(PN532_I2C)
NR_SHORTSECTOR = 32 # Number of short sectors on Mifare 1K/4K
NR_LONGSECTOR = 8 # Number of long sectors on Mifare 4K
NR_BLOCK_OF_SHORTSECTOR = 4 # Number of blocks in a short sector
NR_BLOCK_OF_LONGSECTOR = 16 # Number of blocks in a long sector
# Determine the sector trailer block based on sector number
def BLOCK_NUMBER_OF_SECTOR_TRAILER(sector):
return (sector)*NR_BLOCK_OF_SHORTSECTOR + NR_BLOCK_OF_SHORTSECTOR-1 if sector < NR_SHORTSECTOR else \
NR_SHORTSECTOR*NR_BLOCK_OF_SHORTSECTOR + (sector-NR_SHORTSECTOR)*NR_BLOCK_OF_LONGSECTOR + NR_BLOCK_OF_LONGSECTOR-1
# Determine the sector's first block based on the sector number