This project works by associating a movie file with an NFC card. Youcould manually type out the UID of each of your cards and movie titles, but a Python script helps to ease this process.

# SPDX-FileCopyrightText: Copyright (c) 2024 Liz Clark for Adafruit Industries## SPDX-License-Identifier: MITimport csvimport osimport sysimport boardimport busiofrom digitalio import DigitalInOutfrom adafruit_pn532.spi import PN532_SPIspi = busio.SPI(board.SCK, board.MOSI, board.MISO)cs_pin = DigitalInOut(board.D24)pn532 = PN532_SPI(spi, cs_pin, debug=False)csv_file = "movies.csv"if not os.path.isfile(csv_file):    with open(csv_file, mode='w', newline='') as file:        writer = csv.writer(file)        writer.writerow(['uid', 'movie'])def is_duplicate(uid, mov):    with open(csv_file, mode='r') as f:        reader = csv.DictReader(f)        for row in reader:            if row['uid'] == uid or row['movie'] == mov:                return True    return Falseic, ver, rev, support = pn532.firmware_versionprint("Found PN532 with firmware version: {0}.{1}".format(ver, rev))# Configure PN532 to communicate with MiFare cardspn532.SAM_configuration()print("Waiting for new RFID/NFC card...")while True:    the_uid = pn532.read_passive_target(timeout=0.05)    if the_uid is not None:        uid_str = f"{[hex(i) for i in the_uid]}"        movie = input("Enter the name of the new movie: ")        movie = f"{movie}"        if is_duplicate(uid_str, movie):            print("UID {uid_str} or movie {movie} already exists, skipping.")        else:            with open(csv_file, mode='a', newline='') as file:                writer = csv.writer(file)                writer.writerow([uid_str, movie])            print(f"Added UID {uid_str} with movie title {movie} to movies.csv")            sys.exit()

# SPDX-FileCopyrightText: Copyright (c) 2024 Liz Clark for Adafruit Industries## SPDX-License-Identifier: MITimport csvimport osimport sysimport boardimport busiofrom digitalio import DigitalInOutfrom adafruit_pn532.spi import PN532_SPIspi = busio.SPI(board.SCK, board.MOSI, board.MISO)cs_pin = DigitalInOut(board.D24)pn532 = PN532_SPI(spi, cs_pin, debug=False)csv_file = "movies.csv"if not os.path.isfile(csv_file):    with open(csv_file, mode='w', newline='') as file:        writer = csv.writer(file)        writer.writerow(['uid', 'movie'])def is_duplicate(uid, mov):    with open(csv_file, mode='r') as f:        reader = csv.DictReader(f)        for row in reader:            if row['uid'] == uid or row['movie'] == mov:                return True    return Falseic, ver, rev, support = pn532.firmware_versionprint("Found PN532 with firmware version: {0}.{1}".format(ver, rev))# Configure PN532 to communicate with MiFare cardspn532.SAM_configuration()print("Waiting for new RFID/NFC card...")while True:    the_uid = pn532.read_passive_target(timeout=0.05)    if the_uid is not None:        uid_str = f"{[hex(i) for i in the_uid]}"        movie = input("Enter the name of the new movie: ")        movie = f"{movie}"        if is_duplicate(uid_str, movie):            print("UID {uid_str} or movie {movie} already exists, skipping.")        else:            with open(csv_file, mode='a', newline='') as file:                writer = csv.writer(file)                writer.writerow([uid_str, movie])            print(f"Added UID {uid_str} with movie title {movie} to movies.csv")            sys.exit()

How the Script Works

You'll run the script in a terminal, separate from the main NFC player script. When the script starts, it will wait for an NFC card to be read. When a card is read, it will prompt you to enter a movie title. After you enter the title, the UID from the card and the title are added to themovies.csv file.