set.py

import board
import busio
from digitalio import DigitalInOut
 
#
# NOTE: pick the import that matches the interface being used
#
#from adafruit_pn532.i2c import PN532_I2C
 
from adafruit_pn532.spi import PN532_SPI
# from adafruit_pn532.uart import PN532_UART
 
# I2C connection:
#i2c = busio.I2C(board.SCL, board.SDA)
 
# Non-hardware
# pn532 = PN532_I2C(i2c, debug=False)
 
# With I2C, we recommend connecting RSTPD_N (reset) to a digital pin for manual
# harware reset
reset_pin = DigitalInOut(board.D6)
# On Raspberry Pi, you must also connect a pin to P32 "H_Request" for hardware
# wakeup! this means we don't need to do the I2C clock-stretch thing
#req_pin = DigitalInOut(board.D12)
#pn532 = PN532_I2C(i2c, debug=False, reset=reset_pin, req=req_pin)
 
 SPI connection:
 spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
 cs_pin = DigitalInOut(board.D5)
 pn532 = PN532_SPI(spi, cs_pin, debug=False)
 
# UART connection
# uart = busio.UART(board.TX, board.RX, baudrate=115200, timeout=100)
# pn532 = PN532_UART(uart, debug=False)
 
ic, ver, rev, support = pn532.firmware_version
print("Found PN532 with firmware version: {0}.{1}".format(ver, rev))
 
# Configure PN532 to communicate with MiFare cards
pn532.SAM_configuration()
 
print("Waiting for RFID/NFC card...")
while True:
    # Check if a card is available to read
    uid = pn532.read_passive_target(timeout=0.5)
    print(".", end="")
    # Try again if no card is available.
    if uid is None:
        continue
    print("Found card with UID:", [hex(i) for i in uid])