import time
from machine import I2C, Pin, SPI #import I2C,Pin,SPI library
from mfrc522 import MFRC522 #import RFID reader library
buzzer= Pin(16, Pin.OUT) #set buzzer to GP16
buzzer.value(1)
true = Pin(15, Pin.OUT) #set Green LED to GP15
false = Pin(14, Pin.OUT) #set Red LED to GP14
sck = Pin(6, Pin.OUT) #set RFID sck to GP6
mosi = Pin(7, Pin.OUT) #set RFID mosi to GP7
miso = Pin(4, Pin.OUT) #set RFID miso to GP4
sda = Pin(5, Pin.OUT) #set RFID sda to GP5
rst = Pin(18, Pin.OUT) #set RFID rst to GP18
spi = SPI(0, baudrate=100000, polarity=0, phase=0, sck=sck, mosi=mosi, miso=miso) #initial SPI
card1 = "0xe58a6223" #change this value to match your testing RFID card 1
card2 = "0xf765bd60" #change this value to match your testing RFID card 2
while True:
rdr = MFRC522(spi, sda, rst) #initialize reader
(stat, tag_type) = rdr.request(rdr.REQIDL) #read card ud
if stat == rdr.OK:
(stat, raw_uid) = rdr.anticoll()
if stat == rdr.OK:
uid = ("0x%02x%02x%02x%02x" % (raw_uid[0], raw_uid[1], raw_uid[2], raw_uid[3]))
print(uid)
if uid == card1: #if ID matches card 1, buzzer beep once, turn on Green LED
print("card 1 detected!")
buzzer.value(0)
time.sleep(0.3)
buzzer.value(1)
true.value(1)
time.sleep(1)
true.value(0)
time.sleep(1)
elif uid == card2:
print("card 2 detected!") #if ID matches card 2, buzzer beep twice, turn on Green LED
buzzer.value(0)
time.sleep(0.3)
buzzer.value(1)
time.sleep(0.3)
buzzer.value(0)
time.sleep(0.3)
buzzer.value(1)
true.value(1)
time.sleep(1)
true.value(0)
time.sleep(1)
else: #if ID doesn't match any card, long beep, turn on Red LED
print("invalid card!")
buzzer.value(0)
time.sleep(2)
buzzer.value(1)
false.value(1)
time.sleep(0.1)
false.value(0)
time.sleep(0.1)
false.value(1)
time.sleep(0.1)
false.value(0)
time.sleep(0.1)
false.value(1)
time.sleep(0.1)
false.value(0)
time.sleep(1)
その後、別のファイルであるpico-lesson7.pyを開き、小さな▶ボタンをクリックしてPythonコードを実行します。
