def read_uid(self):
PN532_HSU = Pn532Hsu(
Pn532Hsu.RPI_MINI_UART
) #Creo interfaz. El argumento indica el puerto serial al que esta conectado el PN532
lector = Pn532(
PN532_HSU
) #Creo el objeto encargado de interpretar la información recibida
lector.begin()
if (
not lector.getFirmwareVersion()
): #Este método se usa exclusivamente para verificar si la RPI detecta el dispositivo
print(
"ERROR. Compruebe la conexión del dispositivo a la RPI. Vuelva a intentarlo"
) # Solo entra en esta condición si no se reconoce PN532
sys.exit()
leido, uid = lector.readPassiveTargetID(
pn532.PN532_MIFARE_ISO14443A_106KBPS)
while (not leido):
leido, uid = lector.readPassiveTargetID(
pn532.PN532_MIFARE_ISO14443A_106KBPS)
uid = binascii.hexlify(uid).decode('utf-8').upper()
return uid
def read_uid(self):
PN532_HSU = Pn532Hsu(Pn532Hsu.RPI_MINI_UART)
nfc = Pn532(PN532_HSU)
nfc.begin()
nfc.SAMConfig()
print("Esperando tarjeta...")
success, uid = nfc.readPassiveTargetID(
pn532.PN532_MIFARE_ISO14443A_106KBPS)
while (not success):
success, uid = nfc.readPassiveTargetID(
pn532.PN532_MIFARE_ISO14443A_106KBPS)
id = uid.hex()
print("Detectado\nUID en hexadecimal: ")
return id
from pn532pi import Pn532
from pn532pi import Pn532I2c
from pn532pi import Pn532Spi
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():
from pn532pi import Pn532, pn532
from pn532pi import Pn532Hsu
from pn532pi import Pn532I2c
from pn532pi import Pn532Spi
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(1)
nfc = Pn532(PN532_I2C)
# We can encode many different kinds of pointers to the card,
# from a URL, to an Email address, to a phone number, and many more
# check the library header .h file to see the large # of supported
# prefixes!
# For a http:#www. url:
url = "google.com"
ndefprefix = pn532.NDEF_URIPREFIX_HTTP_WWWDOT
from pn532pi import Pn532, pn532
from pn532pi import Pn532I2c
from pn532pi import Pn532Spi
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)
# When the number after #elif set as 1, it will be switch to HSU Mode
elif HSU:
PN532_HSU = Pn532Hsu('/dev/ttyUSB0')
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(1)
nfc = Pn532(PN532_I2C)
def setup():
nfc.begin()
versiondata = nfc.getFirmwareVersion()
if (not versiondata):
print("Didn't find PN53x board")
raise RuntimeError("Didn't find PN53x board") # halt