这是我的python程序,它读取RFID的用户ID,如何将其连接到php程序,以便将用户ID保存在变量$user中。我是一个要使用我的用户id访问数据库的单个用户id
我也用树莓皮3b
# Requires Adafruit_Python_PN532
import binascii
import socket
import time
import signal
import sys
import Adafruit_PN532 as PN532
# PN532 configuration for a Raspberry Pi GPIO:
# GPIO 18, pin 12
CS = 18
# GPIO 23, pin 16
MOSI = 23
# GPIO 24, pin 18
MISO = 24
# GPIO 25, pin 22
SCLK = 25
# Configure the key to use for writing to the MiFare card. You probably
#don't
# need to change this from the default below unless you know your card
#has a
# different key associated with it.
CARD_KEY = [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF]
# Number of seconds to delay after reading data.
DELAY = 5
# Prefix, aka header from the card
HEADER = b'BG'
def close(signal, frame):
sys.exit(0)
signal.signal(signal.SIGINT, close)
# Create and initialize an instance of the PN532 class
pn532 = PN532.PN532(cs=CS, sclk=SCLK, mosi=MOSI, miso=MISO)
pn532.begin()
pn532.SAM_configuration()
print('PN532 NFC RFID 13.56MHz Card Reader')
while True:
# Wait for a card to be available
uid = pn532.read_passive_target()
# Try again if no card found
if uid is None:
continue
# Found a card, now try to read block 4 to detect the block type
print('')
print('Card UID 0x{0}'.format(binascii.hexlify(uid)))
# Authenticate and read block 4
if not pn532.mifare_classic_authenticate_block(uid, 4,
PN532.MIFARE_CMD_AUTH_B, CARD_KEY):
print('Failed to authenticate with card!')
continue
data = pn532.mifare_classic_read_block(4)
if data is None:
print('Failed to read data from card!')
continue
# Check the header
if data[0:2] != HEADER:
print('Card is not written with proper block data!')
continue
# Parse out the block type and subtype
print('User Id: {0}'.format(int(data[2:8].decode("utf-8"), 16)))
time.sleep(DELAY);
目前没有回答
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