Type your password if an authorized UID is read by NFC reader

simple_uid_auth.py

import re
import time
import serial
import pykeyboard

k = pykeyboard.PyKeyboard()
ENTER = k.enter_key
password = 'My_Super_P4SSWoRD'
print('Starting serial device...')
ser = serial.Serial(port='/dev/ttyUSB0', baudrate=9600)

def main():
    time.sleep(1)
    print('Waiting for a card...')
    card = ser.readline().decode()
    print('Got a card. Decoding...')
    card = re.findall(r'[0-9]+', card)[0]
    print('UID: ', card)

    valid_uids = ['8112916219', '8410315760', '4649650']
    if card in valid_uids:
        print('Access granted.')
        k.type_string(password)
        k.tap_key(ENTER)
    else:
        print('Access denied.')


if __name__ == '__main__':
    while True:
        main()